| Message ID | 1457833689-4926-1-git-send-email-shuahkh@osg.samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sat, Mar 12, 2016 at 06:48:09PM -0700, Shuah Khan wrote: > Add GFP flags to media_create_pad_link(), media_create_intf_link(), > media_devnode_create(), and media_add_link() that could get called > in atomic context to allow callers to pass in the right flags for > memory allocation. > > tree-wide driver changes for media_*() GFP flags change: > Change drivers to add gfpflags to interffaces, media_create_pad_link(), > media_create_intf_link() and media_devnode_create(). > in two cases (media_add_link,media_devnode_create) it is passing in gfpflags but then checking for in_atomic() and in case it is, dumping stack - so does it make sense in those cases to allow GFP_ATOMIC to be passed in ? could not figure out why that would be needed (current callers in media-entity.c do not seem to be under a spin_lock). and in a few cases there seems to be a little glitch with indentation dvb_create_media_graph __fimc_md_create_fimc_sink_links __fimc_md_create_fimc_is_links vsp1_create_sink_links v4l2_mc_create_media_graph vpfe_ipipeif_register_entities thx! hofrat > Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> > Suggested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> > --- > Ran through kbuild-all compile testing. > Tested the changes in Win-TV HVR-950Q device > > drivers/media/dvb-core/dvbdev.c | 26 +++++++----- > drivers/media/i2c/s5c73m3/s5c73m3-core.c | 6 ++- > drivers/media/i2c/s5k5baf.c | 3 +- > drivers/media/i2c/smiapp/smiapp-core.c | 3 +- > drivers/media/i2c/tvp5150.c | 3 +- > drivers/media/media-entity.c | 30 ++++++++------ > drivers/media/platform/exynos4-is/media-dev.c | 19 +++++---- > drivers/media/platform/omap3isp/isp.c | 47 ++++++++++++++-------- > drivers/media/platform/s3c-camif/camif-core.c | 4 +- > drivers/media/platform/vsp1/vsp1_drm.c | 6 +-- > drivers/media/platform/vsp1/vsp1_drv.c | 9 +++-- > drivers/media/platform/xilinx/xilinx-vipp.c | 4 +- > drivers/media/usb/au0828/au0828-core.c | 3 +- > drivers/media/usb/uvc/uvc_entity.c | 2 +- > drivers/media/v4l2-core/v4l2-dev.c | 5 ++- > drivers/media/v4l2-core/v4l2-device.c | 3 +- > drivers/media/v4l2-core/v4l2-mc.c | 25 +++++++----- > drivers/staging/media/davinci_vpfe/dm365_ipipeif.c | 3 +- > drivers/staging/media/davinci_vpfe/dm365_isif.c | 2 +- > drivers/staging/media/davinci_vpfe/dm365_resizer.c | 10 +++-- > .../staging/media/davinci_vpfe/vpfe_mc_capture.c | 10 ++--- > drivers/staging/media/omap4iss/iss.c | 17 +++++--- > drivers/staging/media/omap4iss/iss_csi2.c | 6 ++- > drivers/staging/media/omap4iss/iss_ipipeif.c | 3 +- > drivers/staging/media/omap4iss/iss_resizer.c | 3 +- > include/media/media-entity.h | 9 +++-- > sound/usb/media.c | 15 ++++--- > 27 files changed, 170 insertions(+), 106 deletions(-) > > diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c > index e1684c5..57f3e1e 100644 > --- a/drivers/media/dvb-core/dvbdev.c > +++ b/drivers/media/dvb-core/dvbdev.c > @@ -399,7 +399,8 @@ static int dvb_register_media_device(struct dvb_device *dvbdev, > > dvbdev->intf_devnode = media_devnode_create(dvbdev->adapter->mdev, > intf_type, 0, > - DVB_MAJOR, minor); > + DVB_MAJOR, minor, > + GFP_KERNEL); > > if (!dvbdev->intf_devnode) > return -ENOMEM; > @@ -416,7 +417,7 @@ static int dvb_register_media_device(struct dvb_device *dvbdev, > return 0; > > link = media_create_intf_link(dvbdev->entity, &dvbdev->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (!link) > return -ENOMEM; > #endif > @@ -558,7 +559,8 @@ static int dvb_create_io_intf_links(struct dvb_adapter *adap, > if (strncmp(entity->name, name, strlen(name))) > continue; > link = media_create_intf_link(entity, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > @@ -680,7 +682,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > } > if (demux && ca) { > ret = media_create_pad_link(demux, 1, ca, > - 0, MEDIA_LNK_FL_ENABLED); > + 0, MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return -ENOMEM; > } > @@ -693,7 +696,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > strlen(DVR_TSOUT))) { > ret = media_create_pad_link(demux, > ++dvr_pad, > - entity, 0, 0); > + entity, 0, 0, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -701,7 +705,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > strlen(DEMUX_TSOUT))) { > ret = media_create_pad_link(demux, > ++demux_pad, > - entity, 0, 0); > + entity, 0, 0, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -713,14 +718,16 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > media_device_for_each_intf(intf, mdev) { > if (intf->type == MEDIA_INTF_T_DVB_CA && ca) { > link = media_create_intf_link(ca, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > > if (intf->type == MEDIA_INTF_T_DVB_FE && tuner) { > link = media_create_intf_link(tuner, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > @@ -732,7 +739,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > */ > if (intf->type == MEDIA_INTF_T_DVB_DVR && demux) { > link = media_create_intf_link(demux, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c > index 08af58f..dd994f1 100644 > --- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c > +++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c > @@ -1484,11 +1484,13 @@ static int s5c73m3_oif_registered(struct v4l2_subdev *sd) > > ret = media_create_pad_link(&state->sensor_sd.entity, > S5C73M3_ISP_PAD, &state->oif_sd.entity, OIF_ISP_PAD, > - MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > > ret = media_create_pad_link(&state->sensor_sd.entity, > S5C73M3_JPEG_PAD, &state->oif_sd.entity, OIF_JPEG_PAD, > - MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > > return ret; > } > diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c > index db82ed0..3692bec 100644 > --- a/drivers/media/i2c/s5k5baf.c > +++ b/drivers/media/i2c/s5k5baf.c > @@ -1759,7 +1759,8 @@ static int s5k5baf_registered(struct v4l2_subdev *sd) > ret = media_create_pad_link(&state->cis_sd.entity, PAD_CIS, > &state->sd.entity, PAD_CIS, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > return ret; > } > > diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c > index a215efe..8c2e9ad 100644 > --- a/drivers/media/i2c/smiapp/smiapp-core.c > +++ b/drivers/media/i2c/smiapp/smiapp-core.c > @@ -2508,7 +2508,8 @@ static int smiapp_register_subdevs(struct smiapp_sensor *sensor) > &last->sd.entity, > last->sink_pad, > MEDIA_LNK_FL_ENABLED | > - MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (rval) { > dev_err(&client->dev, > "media_create_pad_link failed\n"); > diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c > index ff18444..fd99683 100644 > --- a/drivers/media/i2c/tvp5150.c > +++ b/drivers/media/i2c/tvp5150.c > @@ -1197,7 +1197,8 @@ static int tvp5150_registered_async(struct v4l2_subdev *sd) > return ret; > > ret = media_create_pad_link(input, 0, &sd->entity, > - DEMOD_PAD_IF_INPUT, 0); > + DEMOD_PAD_IF_INPUT, 0, > + GFP_KERNEL); > if (ret < 0) { > media_device_unregister_entity(input); > return ret; > diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c > index 66a5392..115435b 100644 > --- a/drivers/media/media-entity.c > +++ b/drivers/media/media-entity.c > @@ -566,14 +566,14 @@ EXPORT_SYMBOL_GPL(media_entity_put); > * Links management > */ > > -static struct media_link *media_add_link(struct list_head *head) > +static struct media_link *media_add_link(struct list_head *head, gfp_t gfpflags) > { > struct media_link *link; > > if (in_atomic()) > dump_stack(); > > - link = kzalloc(sizeof(*link), GFP_KERNEL); > + link = kzalloc(sizeof(*link), gfpflags); > if (link == NULL) > return NULL; > > @@ -615,7 +615,8 @@ static void __media_entity_remove_link(struct media_entity *entity, > > int > media_create_pad_link(struct media_entity *source, u16 source_pad, > - struct media_entity *sink, u16 sink_pad, u32 flags) > + struct media_entity *sink, u16 sink_pad, u32 flags, > + gfp_t gfpflags) > { > struct media_link *link; > struct media_link *backlink; > @@ -624,7 +625,7 @@ media_create_pad_link(struct media_entity *source, u16 source_pad, > BUG_ON(source_pad >= source->num_pads); > BUG_ON(sink_pad >= sink->num_pads); > > - link = media_add_link(&source->links); > + link = media_add_link(&source->links, gfpflags); > if (link == NULL) > return -ENOMEM; > > @@ -639,7 +640,7 @@ media_create_pad_link(struct media_entity *source, u16 source_pad, > /* Create the backlink. Backlinks are used to help graph traversal and > * are not reported to userspace. > */ > - backlink = media_add_link(&sink->links); > + backlink = media_add_link(&sink->links, gfpflags); > if (backlink == NULL) { > __media_entity_remove_link(source, link); > return -ENOMEM; > @@ -682,7 +683,7 @@ int media_create_pad_links(const struct media_device *mdev, > /* Trivial case: 1:1 relation */ > if (source && sink) > return media_create_pad_link(source, source_pad, > - sink, sink_pad, flags); > + sink, sink_pad, flags, GFP_KERNEL); > > /* Worse case scenario: n:n relation */ > if (!source && !sink) { > @@ -696,7 +697,7 @@ int media_create_pad_links(const struct media_device *mdev, > continue; > ret = media_create_pad_link(source, source_pad, > sink, sink_pad, > - flags); > + flags, GFP_KERNEL); > if (ret) > return ret; > flags &= ~(MEDIA_LNK_FL_ENABLED | > @@ -718,10 +719,12 @@ int media_create_pad_links(const struct media_device *mdev, > > if (source) > ret = media_create_pad_link(source, source_pad, > - entity, sink_pad, flags); > + entity, sink_pad, flags, > + GFP_KERNEL); > else > ret = media_create_pad_link(entity, source_pad, > - sink, sink_pad, flags); > + sink, sink_pad, flags, > + GFP_KERNEL); > if (ret) > return ret; > flags &= ~(MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > @@ -890,14 +893,15 @@ static void media_interface_init(struct media_device *mdev, > > struct media_intf_devnode *media_devnode_create(struct media_device *mdev, > u32 type, u32 flags, > - u32 major, u32 minor) > + u32 major, u32 minor, > + gfp_t gfpflags) > { > struct media_intf_devnode *devnode; > > if (in_atomic()) > dump_stack(); > > - devnode = kzalloc(sizeof(*devnode), GFP_KERNEL); > + devnode = kzalloc(sizeof(*devnode), gfpflags); > if (!devnode) > return NULL; > > @@ -921,11 +925,11 @@ EXPORT_SYMBOL_GPL(media_devnode_remove); > > struct media_link *media_create_intf_link(struct media_entity *entity, > struct media_interface *intf, > - u32 flags) > + u32 flags, gfp_t gfpflags) > { > struct media_link *link; > > - link = media_add_link(&intf->links); > + link = media_add_link(&intf->links, gfpflags); > if (link == NULL) > return NULL; > > diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c > index feb521f..145d90e 100644 > --- a/drivers/media/platform/exynos4-is/media-dev.c > +++ b/drivers/media/platform/exynos4-is/media-dev.c > @@ -798,7 +798,8 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, > > sink = &fmd->fimc[i]->vid_cap.subdev.entity; > ret = media_create_pad_link(source, pad, sink, > - FIMC_SD_PAD_SINK_CAM, flags); > + FIMC_SD_PAD_SINK_CAM, flags, > + GFP_KERNEL); > if (ret) > return ret; > > @@ -818,7 +819,8 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, > > sink = &fmd->fimc_lite[i]->subdev.entity; > ret = media_create_pad_link(source, pad, sink, > - FLITE_SD_PAD_SINK, 0); > + FLITE_SD_PAD_SINK, 0, > + GFP_KERNEL); > if (ret) > return ret; > > @@ -850,13 +852,13 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) > sink = &fimc->ve.vdev.entity; > /* FIMC-LITE's subdev and video node */ > ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_DMA, > - sink, 0, 0); > + sink, 0, 0, GFP_KERNEL); > if (ret) > break; > /* Link from FIMC-LITE to IS-ISP subdev */ > sink = &fmd->fimc_is->isp.subdev.entity; > ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_ISP, > - sink, 0, 0); > + sink, 0, 0, GFP_KERNEL); > if (ret) > break; > } > @@ -880,7 +882,8 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) > /* Link from FIMC-IS-ISP subdev to FIMC */ > sink = &fmd->fimc[i]->vid_cap.subdev.entity; > ret = media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, > - sink, FIMC_SD_PAD_SINK_FIFO, 0); > + sink, FIMC_SD_PAD_SINK_FIFO, 0, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -893,7 +896,7 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) > return 0; > > return media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_DMA, > - sink, 0, 0); > + sink, 0, 0, GFP_KERNEL); > } > > /** > @@ -944,7 +947,7 @@ static int fimc_md_create_links(struct fimc_md *fmd) > ret = media_create_pad_link(&sensor->entity, pad, > &csis->entity, CSIS_PAD_SINK, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > > @@ -996,7 +999,7 @@ static int fimc_md_create_links(struct fimc_md *fmd) > sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; > > ret = media_create_pad_link(source, FIMC_SD_PAD_SOURCE, > - sink, 0, flags); > + sink, 0, flags, GFP_KERNEL); > if (ret) > break; > } > diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c > index 5d54e2c..f8d9c84 100644 > --- a/drivers/media/platform/omap3isp/isp.c > +++ b/drivers/media/platform/omap3isp/isp.c > @@ -1669,7 +1669,7 @@ static int isp_link_entity( > return -EINVAL; > } > > - return media_create_pad_link(entity, i, input, pad, flags); > + return media_create_pad_link(entity, i, input, pad, flags, GFP_KERNEL); > } > > static int isp_register_entities(struct isp_device *isp) > @@ -1748,43 +1748,50 @@ static int isp_create_links(struct isp_device *isp) > /* Create links between entities and video nodes. */ > ret = media_create_pad_link( > &isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE, > - &isp->isp_csi2a.video_out.video.entity, 0, 0); > + &isp->isp_csi2a.video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccp2.video_in.video.entity, 0, > - &isp->isp_ccp2.subdev.entity, CCP2_PAD_SINK, 0); > + &isp->isp_ccp2.subdev.entity, CCP2_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF, > - &isp->isp_ccdc.video_out.video.entity, 0, 0); > + &isp->isp_ccdc.video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_prev.video_in.video.entity, 0, > - &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0); > + &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_prev.subdev.entity, PREV_PAD_SOURCE, > - &isp->isp_prev.video_out.video.entity, 0, 0); > + &isp->isp_prev.video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_res.video_in.video.entity, 0, > - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); > + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_res.subdev.entity, RESZ_PAD_SOURCE, > - &isp->isp_res.video_out.video.entity, 0, 0); > + &isp->isp_res.video_out.video.entity, 0, 0, > + GFP_KERNEL); > > if (ret < 0) > return ret; > @@ -1792,52 +1799,60 @@ static int isp_create_links(struct isp_device *isp) > /* Create links between entities. */ > ret = media_create_pad_link( > &isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE, > - &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0); > + &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccp2.subdev.entity, CCP2_PAD_SOURCE, > - &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0); > + &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > - &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0); > + &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF, > - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); > + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_prev.subdev.entity, PREV_PAD_SOURCE, > - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); > + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > &isp->isp_aewb.subdev.entity, 0, > - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > &isp->isp_af.subdev.entity, 0, > - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > &isp->isp_hist.subdev.entity, 0, > - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c > index 0b44b9a..a49b4c3 100644 > --- a/drivers/media/platform/s3c-camif/camif-core.c > +++ b/drivers/media/platform/s3c-camif/camif-core.c > @@ -266,7 +266,7 @@ static int camif_create_media_links(struct camif_dev *camif) > ret = media_create_pad_link(&camif->sensor.sd->entity, 0, > &camif->subdev.entity, CAMIF_SD_PAD_SINK, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > > @@ -274,7 +274,7 @@ static int camif_create_media_links(struct camif_dev *camif) > ret = media_create_pad_link(&camif->subdev.entity, i, > &camif->vp[i - 1].vdev.entity, 0, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > } > > return ret; > diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c > index 021fe57..f868dec 100644 > --- a/drivers/media/platform/vsp1/vsp1_drm.c > +++ b/drivers/media/platform/vsp1/vsp1_drm.c > @@ -525,7 +525,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&rpf->entity.subdev.entity, > RWPF_PAD_SOURCE, > &vsp1->bru->entity.subdev.entity, > - i, flags); > + i, flags, GFP_KERNEL); > if (ret < 0) > return ret; > > @@ -536,7 +536,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&vsp1->bru->entity.subdev.entity, > vsp1->bru->entity.source_pad, > &vsp1->wpf[0]->entity.subdev.entity, > - RWPF_PAD_SINK, flags); > + RWPF_PAD_SINK, flags, GFP_KERNEL); > if (ret < 0) > return ret; > > @@ -546,7 +546,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity, > RWPF_PAD_SOURCE, > &vsp1->lif->entity.subdev.entity, > - LIF_PAD_SINK, flags); > + LIF_PAD_SINK, flags, GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c > index 25750a0..7295587 100644 > --- a/drivers/media/platform/vsp1/vsp1_drv.c > +++ b/drivers/media/platform/vsp1/vsp1_drv.c > @@ -125,7 +125,8 @@ static int vsp1_create_sink_links(struct vsp1_device *vsp1, > > ret = media_create_pad_link(&source->subdev.entity, > source->source_pad, > - entity, pad, flags); > + entity, pad, flags, > + GFP_KERNEL); > if (ret < 0) > return ret; > > @@ -157,7 +158,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity, > RWPF_PAD_SOURCE, > &vsp1->lif->entity.subdev.entity, > - LIF_PAD_SINK, 0); > + LIF_PAD_SINK, 0, GFP_KERNEL); > if (ret < 0) > return ret; > } > @@ -169,7 +170,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) > &rpf->entity.subdev.entity, > RWPF_PAD_SINK, > MEDIA_LNK_FL_ENABLED | > - MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_IMMUTABLE, GFP_KERNEL); > if (ret < 0) > return ret; > } > @@ -188,7 +189,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&wpf->entity.subdev.entity, > RWPF_PAD_SOURCE, > &wpf->video->video.entity, 0, > - flags); > + flags, GFP_KERNEL); > if (ret < 0) > return ret; > } > diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c > index e795a45..b444db4 100644 > --- a/drivers/media/platform/xilinx/xilinx-vipp.c > +++ b/drivers/media/platform/xilinx/xilinx-vipp.c > @@ -158,7 +158,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev, > > ret = media_create_pad_link(local, local_pad->index, > remote, remote_pad->index, > - link_flags); > + link_flags, GFP_KERNEL); > if (ret < 0) { > dev_err(xdev->dev, > "failed to create %s:%u -> %s:%u link\n", > @@ -272,7 +272,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev) > > ret = media_create_pad_link(source, source_pad->index, > sink, sink_pad->index, > - link_flags); > + link_flags, GFP_KERNEL); > if (ret < 0) { > dev_err(xdev->dev, > "failed to create %s:%u -> %s:%u link\n", > diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c > index 552ac58..de9ab11 100644 > --- a/drivers/media/usb/au0828/au0828-core.c > +++ b/drivers/media/usb/au0828/au0828-core.c > @@ -251,7 +251,8 @@ create_link: > ret = media_create_pad_link(decoder, > DEMOD_PAD_AUDIO_OUT, > mixer, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > dev_err(&dev->usbdev->dev, > "Mixer Pad Link Create Error: %d\n", ret); > diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c > index ac386bb..d9555dc 100644 > --- a/drivers/media/usb/uvc/uvc_entity.c > +++ b/drivers/media/usb/uvc/uvc_entity.c > @@ -53,7 +53,7 @@ static int uvc_mc_create_links(struct uvc_video_chain *chain, > > remote_pad = remote->num_pads - 1; > ret = media_create_pad_link(source, remote_pad, > - sink, i, flags); > + sink, i, flags, GFP_KERNEL); > if (ret < 0) > return ret; > } > diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c > index d8e5994..b0f53a2 100644 > --- a/drivers/media/v4l2-core/v4l2-dev.c > +++ b/drivers/media/v4l2-core/v4l2-dev.c > @@ -786,7 +786,7 @@ static int video_register_media_controller(struct video_device *vdev, int type) > vdev->intf_devnode = media_devnode_create(vdev->v4l2_dev->mdev, > intf_type, > 0, VIDEO_MAJOR, > - vdev->minor); > + vdev->minor, GFP_KERNEL); > if (!vdev->intf_devnode) { > media_device_unregister_entity(&vdev->entity); > return -ENOMEM; > @@ -797,7 +797,8 @@ static int video_register_media_controller(struct video_device *vdev, int type) > > link = media_create_intf_link(&vdev->entity, > &vdev->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) { > media_devnode_remove(vdev->intf_devnode); > media_device_unregister_entity(&vdev->entity); > diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c > index 06fa5f1..c7514e7 100644 > --- a/drivers/media/v4l2-core/v4l2-device.c > +++ b/drivers/media/v4l2-core/v4l2-device.c > @@ -266,7 +266,8 @@ int v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev) > > link = media_create_intf_link(&sd->entity, > &vdev->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) { > err = -ENOMEM; > goto clean_up; > diff --git a/drivers/media/v4l2-core/v4l2-mc.c b/drivers/media/v4l2-core/v4l2-mc.c > index 40ee864..b1652f9 100644 > --- a/drivers/media/v4l2-core/v4l2-mc.c > +++ b/drivers/media/v4l2-core/v4l2-mc.c > @@ -92,7 +92,8 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > continue; > ret = media_create_pad_link(entity, 0, > io_v4l, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -110,18 +111,21 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT, > if_vid, > IF_VID_DEC_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > ret = media_create_pad_link(if_vid, IF_VID_DEC_PAD_OUT, > decoder, DEMOD_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } else { > ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT, > decoder, DEMOD_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -130,7 +134,8 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > ret = media_create_pad_link(tuner, TUNER_PAD_AUD_OUT, > if_aud, > IF_AUD_DEC_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } else { > @@ -143,7 +148,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > if (io_v4l) { > ret = media_create_pad_link(decoder, DEMOD_PAD_VID_OUT, > io_v4l, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > } > @@ -151,7 +156,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > if (io_swradio) { > ret = media_create_pad_link(decoder, DEMOD_PAD_VID_OUT, > io_swradio, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > } > @@ -159,7 +164,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > if (io_vbi) { > ret = media_create_pad_link(decoder, DEMOD_PAD_VBI_OUT, > io_vbi, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > } > @@ -174,13 +179,13 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > > ret = media_create_pad_link(entity, 0, tuner, > TUNER_PAD_RF_INPUT, > - flags); > + flags, GFP_KERNEL); > break; > case MEDIA_ENT_F_CONN_SVIDEO: > case MEDIA_ENT_F_CONN_COMPOSITE: > ret = media_create_pad_link(entity, 0, decoder, > DEMOD_PAD_IF_INPUT, > - flags); > + flags, GFP_KERNEL); > break; > default: > continue; > diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c > index 633d645..d1442b9 100644 > --- a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c > +++ b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c > @@ -977,7 +977,8 @@ vpfe_ipipeif_register_entities(struct vpfe_ipipeif_device *ipipeif, > > flags = 0; > ret = media_create_pad_link(&ipipeif->video_in.video_dev.entity, 0, > - &ipipeif->subdev.entity, 0, flags); > + &ipipeif->subdev.entity, 0, flags, > + GFP_KERNEL); > if (ret < 0) > goto fail; > > diff --git a/drivers/staging/media/davinci_vpfe/dm365_isif.c b/drivers/staging/media/davinci_vpfe/dm365_isif.c > index 9905789..2470655 100644 > --- a/drivers/staging/media/davinci_vpfe/dm365_isif.c > +++ b/drivers/staging/media/davinci_vpfe/dm365_isif.c > @@ -1824,7 +1824,7 @@ int vpfe_isif_register_entities(struct vpfe_isif_device *isif, > /* connect isif to video node */ > ret = media_create_pad_link(&isif->subdev.entity, 1, > &isif->video_out.video_dev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_create_link; > return 0; > diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c b/drivers/staging/media/davinci_vpfe/dm365_resizer.c > index a91395c..067f699 100644 > --- a/drivers/staging/media/davinci_vpfe/dm365_resizer.c > +++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c > @@ -1833,26 +1833,28 @@ int vpfe_resizer_register_entities(struct vpfe_resizer_device *resizer, > /* create link between Resizer Crop----> Resizer A*/ > ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 1, > &resizer->resizer_a.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > /* create link between Resizer Crop----> Resizer B*/ > ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 2, > &resizer->resizer_b.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > /* create link between Resizer A ----> video out */ > ret = media_create_pad_link(&resizer->resizer_a.subdev.entity, 1, > - &resizer->resizer_a.video_out.video_dev.entity, 0, flags); > + &resizer->resizer_a.video_out.video_dev.entity, 0, flags, > + GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > /* create link between Resizer B ----> video out */ > ret = media_create_pad_link(&resizer->resizer_b.subdev.entity, 1, > - &resizer->resizer_b.video_out.video_dev.entity, 0, flags); > + &resizer->resizer_b.video_out.video_dev.entity, 0, flags, > + GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c > index ec46f36..bee9f5c 100644 > --- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c > +++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c > @@ -447,32 +447,32 @@ static int vpfe_register_entities(struct vpfe_device *vpfe_dev) > if (vpfe_dev->sd[i]->entity.num_pads) { > ret = media_create_pad_link(&vpfe_dev->sd[i]->entity, > 0, &vpfe_dev->vpfe_isif.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > } > > ret = media_create_pad_link(&vpfe_dev->vpfe_isif.subdev.entity, 1, > &vpfe_dev->vpfe_ipipeif.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1, > &vpfe_dev->vpfe_ipipe.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > ret = media_create_pad_link(&vpfe_dev->vpfe_ipipe.subdev.entity, > 1, &vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1, > &vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c > index fb80d2b..933c8a7 100644 > --- a/drivers/staging/media/omap4iss/iss.c > +++ b/drivers/staging/media/omap4iss/iss.c > @@ -1065,7 +1065,7 @@ static int iss_register_entities(struct iss_device *iss) > } > > ret = media_create_pad_link(&sensor->entity, 0, input, pad, > - flags); > + flags, GFP_KERNEL); > if (ret < 0) > goto done; > } > @@ -1110,31 +1110,36 @@ static int iss_create_links(struct iss_device *iss) > /* Connect the submodules. */ > ret = media_create_pad_link( > &iss->csi2a.subdev.entity, CSI2_PAD_SOURCE, > - &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); > + &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->csi2b.subdev.entity, CSI2_PAD_SOURCE, > - &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); > + &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, > - &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); > + &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, > - &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0); > + &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->ipipe.subdev.entity, IPIPE_PAD_SOURCE_VP, > - &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); > + &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/staging/media/omap4iss/iss_csi2.c b/drivers/staging/media/omap4iss/iss_csi2.c > index aaca39d..4b40132 100644 > --- a/drivers/staging/media/omap4iss/iss_csi2.c > +++ b/drivers/staging/media/omap4iss/iss_csi2.c > @@ -1352,13 +1352,15 @@ int omap4iss_csi2_create_links(struct iss_device *iss) > > /* Connect the CSI2a subdev to the video node. */ > ret = media_create_pad_link(&csi2a->subdev.entity, CSI2_PAD_SOURCE, > - &csi2a->video_out.video.entity, 0, 0); > + &csi2a->video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > /* Connect the CSI2b subdev to the video node. */ > ret = media_create_pad_link(&csi2b->subdev.entity, CSI2_PAD_SOURCE, > - &csi2b->video_out.video.entity, 0, 0); > + &csi2b->video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/staging/media/omap4iss/iss_ipipeif.c b/drivers/staging/media/omap4iss/iss_ipipeif.c > index 23de833..2f124b0 100644 > --- a/drivers/staging/media/omap4iss/iss_ipipeif.c > +++ b/drivers/staging/media/omap4iss/iss_ipipeif.c > @@ -827,7 +827,8 @@ int omap4iss_ipipeif_create_links(struct iss_device *iss) > /* Connect the IPIPEIF subdev to the video node. */ > return media_create_pad_link(&ipipeif->subdev.entity, > IPIPEIF_PAD_SOURCE_ISIF_SF, > - &ipipeif->video_out.video.entity, 0, 0); > + &ipipeif->video_out.video.entity, 0, 0, > + GFP_KERNEL); > } > > /* > diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c > index f1d352c..8d5766a 100644 > --- a/drivers/staging/media/omap4iss/iss_resizer.c > +++ b/drivers/staging/media/omap4iss/iss_resizer.c > @@ -869,7 +869,8 @@ int omap4iss_resizer_create_links(struct iss_device *iss) > /* Connect the RESIZER subdev to the video node. */ > return media_create_pad_link(&resizer->subdev.entity, > RESIZER_PAD_SOURCE_MEM, > - &resizer->video_out.video.entity, 0, 0); > + &resizer->video_out.video.entity, 0, 0, > + GFP_KERNEL); > } > > /* > diff --git a/include/media/media-entity.h b/include/media/media-entity.h > index 6dc9e4e..0665c2d 100644 > --- a/include/media/media-entity.h > +++ b/include/media/media-entity.h > @@ -595,6 +595,7 @@ static inline void media_entity_cleanup(struct media_entity *entity) {}; > * @sink: pointer to &media_entity of the sink pad. > * @sink_pad: number of the sink pad in the pads array. > * @flags: Link flags, as defined in include/uapi/linux/media.h. > + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h > * > * Valid values for flags: > * A %MEDIA_LNK_FL_ENABLED flag indicates that the link is enabled and can be > @@ -613,7 +614,7 @@ static inline void media_entity_cleanup(struct media_entity *entity) {}; > */ > __must_check int media_create_pad_link(struct media_entity *source, > u16 source_pad, struct media_entity *sink, > - u16 sink_pad, u32 flags); > + u16 sink_pad, u32 flags, gfp_t gfpflags); > > /** > * media_create_pad_links() - creates a link between two entities. > @@ -883,11 +884,12 @@ void __media_entity_pipeline_stop(struct media_entity *entity); > struct media_intf_devnode * > __must_check media_devnode_create(struct media_device *mdev, > u32 type, u32 flags, > - u32 major, u32 minor); > + u32 major, u32 minor, gfp_t gfpflags); > /** > * media_devnode_remove() - removes a device node interface > * > * @devnode: pointer to &media_intf_devnode to be freed. > + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h > * > * When a device node interface is removed, all links to it are automatically > * removed. > @@ -901,6 +903,7 @@ struct media_link * > * @entity: pointer to %media_entity > * @intf: pointer to %media_interface > * @flags: Link flags, as defined in include/uapi/linux/media.h. > + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h > * > * > * Valid values for flags: > @@ -921,7 +924,7 @@ struct media_link * > */ > __must_check media_create_intf_link(struct media_entity *entity, > struct media_interface *intf, > - u32 flags); > + u32 flags, gfp_t gfpflags); > /** > * __media_remove_intf_link() - remove a single interface link > * > diff --git a/sound/usb/media.c b/sound/usb/media.c > index 93a50d01..f5ac038 100644 > --- a/sound/usb/media.c > +++ b/sound/usb/media.c > @@ -88,14 +88,16 @@ int media_snd_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, > > mctl->intf_devnode = media_devnode_create(mdev, intf_type, 0, > MAJOR(pcm_dev->devt), > - MINOR(pcm_dev->devt)); > + MINOR(pcm_dev->devt), > + GFP_KERNEL); > if (!mctl->intf_devnode) { > ret = -ENOMEM; > goto unregister_entity; > } > mctl->intf_link = media_create_intf_link(&mctl->media_entity, > &mctl->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!mctl->intf_link) { > ret = -ENOMEM; > goto devnode_remove; > @@ -107,7 +109,8 @@ int media_snd_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, > case MEDIA_ENT_F_AUDIO_MIXER: > ret = media_create_pad_link(entity, mixer_pad, > &mctl->media_entity, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > goto remove_intf_link; > break; > @@ -180,7 +183,8 @@ int media_snd_mixer_init(struct snd_usb_audio *chip) > if (!ctl_intf) { > ctl_intf = media_devnode_create(mdev, intf_type, 0, > MAJOR(ctl_dev->devt), > - MINOR(ctl_dev->devt)); > + MINOR(ctl_dev->devt), > + GFP_KERNEL); > if (!ctl_intf) > return -ENOMEM; > chip->ctl_intf_media_devnode = ctl_intf; > @@ -213,7 +217,8 @@ int media_snd_mixer_init(struct snd_usb_audio *chip) > > mctl->intf_link = media_create_intf_link(&mctl->media_entity, > &ctl_intf->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!mctl->intf_link) { > media_device_unregister_entity(&mctl->media_entity); > media_entity_cleanup(&mctl->media_entity); > -- > 2.5.0 > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Em Sat, 12 Mar 2016 18:48:09 -0700 Shuah Khan <shuahkh@osg.samsung.com> escreveu: > Add GFP flags to media_create_pad_link(), media_create_intf_link(), > media_devnode_create(), and media_add_link() that could get called > in atomic context to allow callers to pass in the right flags for > memory allocation. > > tree-wide driver changes for media_*() GFP flags change: > Change drivers to add gfpflags to interffaces, media_create_pad_link(), > media_create_intf_link() and media_devnode_create(). > > Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> > Suggested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Patches look OK to me[1], provided that a followup patch is changes some of the callers to use GFP_ATOMIC. I'll wait for such patch before merging this one. Regards, Mauro [1] but see Nicholas comments about indentation. > --- > Ran through kbuild-all compile testing. > Tested the changes in Win-TV HVR-950Q device > > drivers/media/dvb-core/dvbdev.c | 26 +++++++----- > drivers/media/i2c/s5c73m3/s5c73m3-core.c | 6 ++- > drivers/media/i2c/s5k5baf.c | 3 +- > drivers/media/i2c/smiapp/smiapp-core.c | 3 +- > drivers/media/i2c/tvp5150.c | 3 +- > drivers/media/media-entity.c | 30 ++++++++------ > drivers/media/platform/exynos4-is/media-dev.c | 19 +++++---- > drivers/media/platform/omap3isp/isp.c | 47 ++++++++++++++-------- > drivers/media/platform/s3c-camif/camif-core.c | 4 +- > drivers/media/platform/vsp1/vsp1_drm.c | 6 +-- > drivers/media/platform/vsp1/vsp1_drv.c | 9 +++-- > drivers/media/platform/xilinx/xilinx-vipp.c | 4 +- > drivers/media/usb/au0828/au0828-core.c | 3 +- > drivers/media/usb/uvc/uvc_entity.c | 2 +- > drivers/media/v4l2-core/v4l2-dev.c | 5 ++- > drivers/media/v4l2-core/v4l2-device.c | 3 +- > drivers/media/v4l2-core/v4l2-mc.c | 25 +++++++----- > drivers/staging/media/davinci_vpfe/dm365_ipipeif.c | 3 +- > drivers/staging/media/davinci_vpfe/dm365_isif.c | 2 +- > drivers/staging/media/davinci_vpfe/dm365_resizer.c | 10 +++-- > .../staging/media/davinci_vpfe/vpfe_mc_capture.c | 10 ++--- > drivers/staging/media/omap4iss/iss.c | 17 +++++--- > drivers/staging/media/omap4iss/iss_csi2.c | 6 ++- > drivers/staging/media/omap4iss/iss_ipipeif.c | 3 +- > drivers/staging/media/omap4iss/iss_resizer.c | 3 +- > include/media/media-entity.h | 9 +++-- > sound/usb/media.c | 15 ++++--- > 27 files changed, 170 insertions(+), 106 deletions(-) > > diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c > index e1684c5..57f3e1e 100644 > --- a/drivers/media/dvb-core/dvbdev.c > +++ b/drivers/media/dvb-core/dvbdev.c > @@ -399,7 +399,8 @@ static int dvb_register_media_device(struct dvb_device *dvbdev, > > dvbdev->intf_devnode = media_devnode_create(dvbdev->adapter->mdev, > intf_type, 0, > - DVB_MAJOR, minor); > + DVB_MAJOR, minor, > + GFP_KERNEL); > > if (!dvbdev->intf_devnode) > return -ENOMEM; > @@ -416,7 +417,7 @@ static int dvb_register_media_device(struct dvb_device *dvbdev, > return 0; > > link = media_create_intf_link(dvbdev->entity, &dvbdev->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (!link) > return -ENOMEM; > #endif > @@ -558,7 +559,8 @@ static int dvb_create_io_intf_links(struct dvb_adapter *adap, > if (strncmp(entity->name, name, strlen(name))) > continue; > link = media_create_intf_link(entity, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > @@ -680,7 +682,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > } > if (demux && ca) { > ret = media_create_pad_link(demux, 1, ca, > - 0, MEDIA_LNK_FL_ENABLED); > + 0, MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return -ENOMEM; > } > @@ -693,7 +696,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > strlen(DVR_TSOUT))) { > ret = media_create_pad_link(demux, > ++dvr_pad, > - entity, 0, 0); > + entity, 0, 0, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -701,7 +705,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > strlen(DEMUX_TSOUT))) { > ret = media_create_pad_link(demux, > ++demux_pad, > - entity, 0, 0); > + entity, 0, 0, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -713,14 +718,16 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > media_device_for_each_intf(intf, mdev) { > if (intf->type == MEDIA_INTF_T_DVB_CA && ca) { > link = media_create_intf_link(ca, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > > if (intf->type == MEDIA_INTF_T_DVB_FE && tuner) { > link = media_create_intf_link(tuner, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > @@ -732,7 +739,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, > */ > if (intf->type == MEDIA_INTF_T_DVB_DVR && demux) { > link = media_create_intf_link(demux, intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) > return -ENOMEM; > } > diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c > index 08af58f..dd994f1 100644 > --- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c > +++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c > @@ -1484,11 +1484,13 @@ static int s5c73m3_oif_registered(struct v4l2_subdev *sd) > > ret = media_create_pad_link(&state->sensor_sd.entity, > S5C73M3_ISP_PAD, &state->oif_sd.entity, OIF_ISP_PAD, > - MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > > ret = media_create_pad_link(&state->sensor_sd.entity, > S5C73M3_JPEG_PAD, &state->oif_sd.entity, OIF_JPEG_PAD, > - MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > > return ret; > } > diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c > index db82ed0..3692bec 100644 > --- a/drivers/media/i2c/s5k5baf.c > +++ b/drivers/media/i2c/s5k5baf.c > @@ -1759,7 +1759,8 @@ static int s5k5baf_registered(struct v4l2_subdev *sd) > ret = media_create_pad_link(&state->cis_sd.entity, PAD_CIS, > &state->sd.entity, PAD_CIS, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > return ret; > } > > diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c > index a215efe..8c2e9ad 100644 > --- a/drivers/media/i2c/smiapp/smiapp-core.c > +++ b/drivers/media/i2c/smiapp/smiapp-core.c > @@ -2508,7 +2508,8 @@ static int smiapp_register_subdevs(struct smiapp_sensor *sensor) > &last->sd.entity, > last->sink_pad, > MEDIA_LNK_FL_ENABLED | > - MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (rval) { > dev_err(&client->dev, > "media_create_pad_link failed\n"); > diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c > index ff18444..fd99683 100644 > --- a/drivers/media/i2c/tvp5150.c > +++ b/drivers/media/i2c/tvp5150.c > @@ -1197,7 +1197,8 @@ static int tvp5150_registered_async(struct v4l2_subdev *sd) > return ret; > > ret = media_create_pad_link(input, 0, &sd->entity, > - DEMOD_PAD_IF_INPUT, 0); > + DEMOD_PAD_IF_INPUT, 0, > + GFP_KERNEL); > if (ret < 0) { > media_device_unregister_entity(input); > return ret; > diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c > index 66a5392..115435b 100644 > --- a/drivers/media/media-entity.c > +++ b/drivers/media/media-entity.c > @@ -566,14 +566,14 @@ EXPORT_SYMBOL_GPL(media_entity_put); > * Links management > */ > > -static struct media_link *media_add_link(struct list_head *head) > +static struct media_link *media_add_link(struct list_head *head, gfp_t gfpflags) > { > struct media_link *link; > > if (in_atomic()) > dump_stack(); > > - link = kzalloc(sizeof(*link), GFP_KERNEL); > + link = kzalloc(sizeof(*link), gfpflags); > if (link == NULL) > return NULL; > > @@ -615,7 +615,8 @@ static void __media_entity_remove_link(struct media_entity *entity, > > int > media_create_pad_link(struct media_entity *source, u16 source_pad, > - struct media_entity *sink, u16 sink_pad, u32 flags) > + struct media_entity *sink, u16 sink_pad, u32 flags, > + gfp_t gfpflags) > { > struct media_link *link; > struct media_link *backlink; > @@ -624,7 +625,7 @@ media_create_pad_link(struct media_entity *source, u16 source_pad, > BUG_ON(source_pad >= source->num_pads); > BUG_ON(sink_pad >= sink->num_pads); > > - link = media_add_link(&source->links); > + link = media_add_link(&source->links, gfpflags); > if (link == NULL) > return -ENOMEM; > > @@ -639,7 +640,7 @@ media_create_pad_link(struct media_entity *source, u16 source_pad, > /* Create the backlink. Backlinks are used to help graph traversal and > * are not reported to userspace. > */ > - backlink = media_add_link(&sink->links); > + backlink = media_add_link(&sink->links, gfpflags); > if (backlink == NULL) { > __media_entity_remove_link(source, link); > return -ENOMEM; > @@ -682,7 +683,7 @@ int media_create_pad_links(const struct media_device *mdev, > /* Trivial case: 1:1 relation */ > if (source && sink) > return media_create_pad_link(source, source_pad, > - sink, sink_pad, flags); > + sink, sink_pad, flags, GFP_KERNEL); > > /* Worse case scenario: n:n relation */ > if (!source && !sink) { > @@ -696,7 +697,7 @@ int media_create_pad_links(const struct media_device *mdev, > continue; > ret = media_create_pad_link(source, source_pad, > sink, sink_pad, > - flags); > + flags, GFP_KERNEL); > if (ret) > return ret; > flags &= ~(MEDIA_LNK_FL_ENABLED | > @@ -718,10 +719,12 @@ int media_create_pad_links(const struct media_device *mdev, > > if (source) > ret = media_create_pad_link(source, source_pad, > - entity, sink_pad, flags); > + entity, sink_pad, flags, > + GFP_KERNEL); > else > ret = media_create_pad_link(entity, source_pad, > - sink, sink_pad, flags); > + sink, sink_pad, flags, > + GFP_KERNEL); > if (ret) > return ret; > flags &= ~(MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > @@ -890,14 +893,15 @@ static void media_interface_init(struct media_device *mdev, > > struct media_intf_devnode *media_devnode_create(struct media_device *mdev, > u32 type, u32 flags, > - u32 major, u32 minor) > + u32 major, u32 minor, > + gfp_t gfpflags) > { > struct media_intf_devnode *devnode; > > if (in_atomic()) > dump_stack(); > > - devnode = kzalloc(sizeof(*devnode), GFP_KERNEL); > + devnode = kzalloc(sizeof(*devnode), gfpflags); > if (!devnode) > return NULL; > > @@ -921,11 +925,11 @@ EXPORT_SYMBOL_GPL(media_devnode_remove); > > struct media_link *media_create_intf_link(struct media_entity *entity, > struct media_interface *intf, > - u32 flags) > + u32 flags, gfp_t gfpflags) > { > struct media_link *link; > > - link = media_add_link(&intf->links); > + link = media_add_link(&intf->links, gfpflags); > if (link == NULL) > return NULL; > > diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c > index feb521f..145d90e 100644 > --- a/drivers/media/platform/exynos4-is/media-dev.c > +++ b/drivers/media/platform/exynos4-is/media-dev.c > @@ -798,7 +798,8 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, > > sink = &fmd->fimc[i]->vid_cap.subdev.entity; > ret = media_create_pad_link(source, pad, sink, > - FIMC_SD_PAD_SINK_CAM, flags); > + FIMC_SD_PAD_SINK_CAM, flags, > + GFP_KERNEL); > if (ret) > return ret; > > @@ -818,7 +819,8 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, > > sink = &fmd->fimc_lite[i]->subdev.entity; > ret = media_create_pad_link(source, pad, sink, > - FLITE_SD_PAD_SINK, 0); > + FLITE_SD_PAD_SINK, 0, > + GFP_KERNEL); > if (ret) > return ret; > > @@ -850,13 +852,13 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) > sink = &fimc->ve.vdev.entity; > /* FIMC-LITE's subdev and video node */ > ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_DMA, > - sink, 0, 0); > + sink, 0, 0, GFP_KERNEL); > if (ret) > break; > /* Link from FIMC-LITE to IS-ISP subdev */ > sink = &fmd->fimc_is->isp.subdev.entity; > ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_ISP, > - sink, 0, 0); > + sink, 0, 0, GFP_KERNEL); > if (ret) > break; > } > @@ -880,7 +882,8 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) > /* Link from FIMC-IS-ISP subdev to FIMC */ > sink = &fmd->fimc[i]->vid_cap.subdev.entity; > ret = media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, > - sink, FIMC_SD_PAD_SINK_FIFO, 0); > + sink, FIMC_SD_PAD_SINK_FIFO, 0, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -893,7 +896,7 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) > return 0; > > return media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_DMA, > - sink, 0, 0); > + sink, 0, 0, GFP_KERNEL); > } > > /** > @@ -944,7 +947,7 @@ static int fimc_md_create_links(struct fimc_md *fmd) > ret = media_create_pad_link(&sensor->entity, pad, > &csis->entity, CSIS_PAD_SINK, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > > @@ -996,7 +999,7 @@ static int fimc_md_create_links(struct fimc_md *fmd) > sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; > > ret = media_create_pad_link(source, FIMC_SD_PAD_SOURCE, > - sink, 0, flags); > + sink, 0, flags, GFP_KERNEL); > if (ret) > break; > } > diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c > index 5d54e2c..f8d9c84 100644 > --- a/drivers/media/platform/omap3isp/isp.c > +++ b/drivers/media/platform/omap3isp/isp.c > @@ -1669,7 +1669,7 @@ static int isp_link_entity( > return -EINVAL; > } > > - return media_create_pad_link(entity, i, input, pad, flags); > + return media_create_pad_link(entity, i, input, pad, flags, GFP_KERNEL); > } > > static int isp_register_entities(struct isp_device *isp) > @@ -1748,43 +1748,50 @@ static int isp_create_links(struct isp_device *isp) > /* Create links between entities and video nodes. */ > ret = media_create_pad_link( > &isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE, > - &isp->isp_csi2a.video_out.video.entity, 0, 0); > + &isp->isp_csi2a.video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccp2.video_in.video.entity, 0, > - &isp->isp_ccp2.subdev.entity, CCP2_PAD_SINK, 0); > + &isp->isp_ccp2.subdev.entity, CCP2_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF, > - &isp->isp_ccdc.video_out.video.entity, 0, 0); > + &isp->isp_ccdc.video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_prev.video_in.video.entity, 0, > - &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0); > + &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_prev.subdev.entity, PREV_PAD_SOURCE, > - &isp->isp_prev.video_out.video.entity, 0, 0); > + &isp->isp_prev.video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_res.video_in.video.entity, 0, > - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); > + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_res.subdev.entity, RESZ_PAD_SOURCE, > - &isp->isp_res.video_out.video.entity, 0, 0); > + &isp->isp_res.video_out.video.entity, 0, 0, > + GFP_KERNEL); > > if (ret < 0) > return ret; > @@ -1792,52 +1799,60 @@ static int isp_create_links(struct isp_device *isp) > /* Create links between entities. */ > ret = media_create_pad_link( > &isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE, > - &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0); > + &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccp2.subdev.entity, CCP2_PAD_SOURCE, > - &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0); > + &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > - &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0); > + &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF, > - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); > + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_prev.subdev.entity, PREV_PAD_SOURCE, > - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); > + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > &isp->isp_aewb.subdev.entity, 0, > - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > &isp->isp_af.subdev.entity, 0, > - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, > &isp->isp_hist.subdev.entity, 0, > - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, > + GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c > index 0b44b9a..a49b4c3 100644 > --- a/drivers/media/platform/s3c-camif/camif-core.c > +++ b/drivers/media/platform/s3c-camif/camif-core.c > @@ -266,7 +266,7 @@ static int camif_create_media_links(struct camif_dev *camif) > ret = media_create_pad_link(&camif->sensor.sd->entity, 0, > &camif->subdev.entity, CAMIF_SD_PAD_SINK, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > > @@ -274,7 +274,7 @@ static int camif_create_media_links(struct camif_dev *camif) > ret = media_create_pad_link(&camif->subdev.entity, i, > &camif->vp[i - 1].vdev.entity, 0, > MEDIA_LNK_FL_IMMUTABLE | > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > } > > return ret; > diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c > index 021fe57..f868dec 100644 > --- a/drivers/media/platform/vsp1/vsp1_drm.c > +++ b/drivers/media/platform/vsp1/vsp1_drm.c > @@ -525,7 +525,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&rpf->entity.subdev.entity, > RWPF_PAD_SOURCE, > &vsp1->bru->entity.subdev.entity, > - i, flags); > + i, flags, GFP_KERNEL); > if (ret < 0) > return ret; > > @@ -536,7 +536,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&vsp1->bru->entity.subdev.entity, > vsp1->bru->entity.source_pad, > &vsp1->wpf[0]->entity.subdev.entity, > - RWPF_PAD_SINK, flags); > + RWPF_PAD_SINK, flags, GFP_KERNEL); > if (ret < 0) > return ret; > > @@ -546,7 +546,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity, > RWPF_PAD_SOURCE, > &vsp1->lif->entity.subdev.entity, > - LIF_PAD_SINK, flags); > + LIF_PAD_SINK, flags, GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c > index 25750a0..7295587 100644 > --- a/drivers/media/platform/vsp1/vsp1_drv.c > +++ b/drivers/media/platform/vsp1/vsp1_drv.c > @@ -125,7 +125,8 @@ static int vsp1_create_sink_links(struct vsp1_device *vsp1, > > ret = media_create_pad_link(&source->subdev.entity, > source->source_pad, > - entity, pad, flags); > + entity, pad, flags, > + GFP_KERNEL); > if (ret < 0) > return ret; > > @@ -157,7 +158,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity, > RWPF_PAD_SOURCE, > &vsp1->lif->entity.subdev.entity, > - LIF_PAD_SINK, 0); > + LIF_PAD_SINK, 0, GFP_KERNEL); > if (ret < 0) > return ret; > } > @@ -169,7 +170,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) > &rpf->entity.subdev.entity, > RWPF_PAD_SINK, > MEDIA_LNK_FL_ENABLED | > - MEDIA_LNK_FL_IMMUTABLE); > + MEDIA_LNK_FL_IMMUTABLE, GFP_KERNEL); > if (ret < 0) > return ret; > } > @@ -188,7 +189,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) > ret = media_create_pad_link(&wpf->entity.subdev.entity, > RWPF_PAD_SOURCE, > &wpf->video->video.entity, 0, > - flags); > + flags, GFP_KERNEL); > if (ret < 0) > return ret; > } > diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c > index e795a45..b444db4 100644 > --- a/drivers/media/platform/xilinx/xilinx-vipp.c > +++ b/drivers/media/platform/xilinx/xilinx-vipp.c > @@ -158,7 +158,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev, > > ret = media_create_pad_link(local, local_pad->index, > remote, remote_pad->index, > - link_flags); > + link_flags, GFP_KERNEL); > if (ret < 0) { > dev_err(xdev->dev, > "failed to create %s:%u -> %s:%u link\n", > @@ -272,7 +272,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev) > > ret = media_create_pad_link(source, source_pad->index, > sink, sink_pad->index, > - link_flags); > + link_flags, GFP_KERNEL); > if (ret < 0) { > dev_err(xdev->dev, > "failed to create %s:%u -> %s:%u link\n", > diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c > index 552ac58..de9ab11 100644 > --- a/drivers/media/usb/au0828/au0828-core.c > +++ b/drivers/media/usb/au0828/au0828-core.c > @@ -251,7 +251,8 @@ create_link: > ret = media_create_pad_link(decoder, > DEMOD_PAD_AUDIO_OUT, > mixer, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > dev_err(&dev->usbdev->dev, > "Mixer Pad Link Create Error: %d\n", ret); > diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c > index ac386bb..d9555dc 100644 > --- a/drivers/media/usb/uvc/uvc_entity.c > +++ b/drivers/media/usb/uvc/uvc_entity.c > @@ -53,7 +53,7 @@ static int uvc_mc_create_links(struct uvc_video_chain *chain, > > remote_pad = remote->num_pads - 1; > ret = media_create_pad_link(source, remote_pad, > - sink, i, flags); > + sink, i, flags, GFP_KERNEL); > if (ret < 0) > return ret; > } > diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c > index d8e5994..b0f53a2 100644 > --- a/drivers/media/v4l2-core/v4l2-dev.c > +++ b/drivers/media/v4l2-core/v4l2-dev.c > @@ -786,7 +786,7 @@ static int video_register_media_controller(struct video_device *vdev, int type) > vdev->intf_devnode = media_devnode_create(vdev->v4l2_dev->mdev, > intf_type, > 0, VIDEO_MAJOR, > - vdev->minor); > + vdev->minor, GFP_KERNEL); > if (!vdev->intf_devnode) { > media_device_unregister_entity(&vdev->entity); > return -ENOMEM; > @@ -797,7 +797,8 @@ static int video_register_media_controller(struct video_device *vdev, int type) > > link = media_create_intf_link(&vdev->entity, > &vdev->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) { > media_devnode_remove(vdev->intf_devnode); > media_device_unregister_entity(&vdev->entity); > diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c > index 06fa5f1..c7514e7 100644 > --- a/drivers/media/v4l2-core/v4l2-device.c > +++ b/drivers/media/v4l2-core/v4l2-device.c > @@ -266,7 +266,8 @@ int v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev) > > link = media_create_intf_link(&sd->entity, > &vdev->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!link) { > err = -ENOMEM; > goto clean_up; > diff --git a/drivers/media/v4l2-core/v4l2-mc.c b/drivers/media/v4l2-core/v4l2-mc.c > index 40ee864..b1652f9 100644 > --- a/drivers/media/v4l2-core/v4l2-mc.c > +++ b/drivers/media/v4l2-core/v4l2-mc.c > @@ -92,7 +92,8 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > continue; > ret = media_create_pad_link(entity, 0, > io_v4l, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -110,18 +111,21 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT, > if_vid, > IF_VID_DEC_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > ret = media_create_pad_link(if_vid, IF_VID_DEC_PAD_OUT, > decoder, DEMOD_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } else { > ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT, > decoder, DEMOD_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } > @@ -130,7 +134,8 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > ret = media_create_pad_link(tuner, TUNER_PAD_AUD_OUT, > if_aud, > IF_AUD_DEC_PAD_IF_INPUT, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > return ret; > } else { > @@ -143,7 +148,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > if (io_v4l) { > ret = media_create_pad_link(decoder, DEMOD_PAD_VID_OUT, > io_v4l, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > } > @@ -151,7 +156,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > if (io_swradio) { > ret = media_create_pad_link(decoder, DEMOD_PAD_VID_OUT, > io_swradio, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > } > @@ -159,7 +164,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > if (io_vbi) { > ret = media_create_pad_link(decoder, DEMOD_PAD_VBI_OUT, > io_vbi, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); > if (ret) > return ret; > } > @@ -174,13 +179,13 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) > > ret = media_create_pad_link(entity, 0, tuner, > TUNER_PAD_RF_INPUT, > - flags); > + flags, GFP_KERNEL); > break; > case MEDIA_ENT_F_CONN_SVIDEO: > case MEDIA_ENT_F_CONN_COMPOSITE: > ret = media_create_pad_link(entity, 0, decoder, > DEMOD_PAD_IF_INPUT, > - flags); > + flags, GFP_KERNEL); > break; > default: > continue; > diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c > index 633d645..d1442b9 100644 > --- a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c > +++ b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c > @@ -977,7 +977,8 @@ vpfe_ipipeif_register_entities(struct vpfe_ipipeif_device *ipipeif, > > flags = 0; > ret = media_create_pad_link(&ipipeif->video_in.video_dev.entity, 0, > - &ipipeif->subdev.entity, 0, flags); > + &ipipeif->subdev.entity, 0, flags, > + GFP_KERNEL); > if (ret < 0) > goto fail; > > diff --git a/drivers/staging/media/davinci_vpfe/dm365_isif.c b/drivers/staging/media/davinci_vpfe/dm365_isif.c > index 9905789..2470655 100644 > --- a/drivers/staging/media/davinci_vpfe/dm365_isif.c > +++ b/drivers/staging/media/davinci_vpfe/dm365_isif.c > @@ -1824,7 +1824,7 @@ int vpfe_isif_register_entities(struct vpfe_isif_device *isif, > /* connect isif to video node */ > ret = media_create_pad_link(&isif->subdev.entity, 1, > &isif->video_out.video_dev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_create_link; > return 0; > diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c b/drivers/staging/media/davinci_vpfe/dm365_resizer.c > index a91395c..067f699 100644 > --- a/drivers/staging/media/davinci_vpfe/dm365_resizer.c > +++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c > @@ -1833,26 +1833,28 @@ int vpfe_resizer_register_entities(struct vpfe_resizer_device *resizer, > /* create link between Resizer Crop----> Resizer A*/ > ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 1, > &resizer->resizer_a.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > /* create link between Resizer Crop----> Resizer B*/ > ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 2, > &resizer->resizer_b.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > /* create link between Resizer A ----> video out */ > ret = media_create_pad_link(&resizer->resizer_a.subdev.entity, 1, > - &resizer->resizer_a.video_out.video_dev.entity, 0, flags); > + &resizer->resizer_a.video_out.video_dev.entity, 0, flags, > + GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > /* create link between Resizer B ----> video out */ > ret = media_create_pad_link(&resizer->resizer_b.subdev.entity, 1, > - &resizer->resizer_b.video_out.video_dev.entity, 0, flags); > + &resizer->resizer_b.video_out.video_dev.entity, 0, flags, > + GFP_KERNEL); > if (ret < 0) > goto out_create_link; > > diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c > index ec46f36..bee9f5c 100644 > --- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c > +++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c > @@ -447,32 +447,32 @@ static int vpfe_register_entities(struct vpfe_device *vpfe_dev) > if (vpfe_dev->sd[i]->entity.num_pads) { > ret = media_create_pad_link(&vpfe_dev->sd[i]->entity, > 0, &vpfe_dev->vpfe_isif.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > } > > ret = media_create_pad_link(&vpfe_dev->vpfe_isif.subdev.entity, 1, > &vpfe_dev->vpfe_ipipeif.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1, > &vpfe_dev->vpfe_ipipe.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > ret = media_create_pad_link(&vpfe_dev->vpfe_ipipe.subdev.entity, > 1, &vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1, > &vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity, > - 0, flags); > + 0, flags, GFP_KERNEL); > if (ret < 0) > goto out_resizer_register; > > diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c > index fb80d2b..933c8a7 100644 > --- a/drivers/staging/media/omap4iss/iss.c > +++ b/drivers/staging/media/omap4iss/iss.c > @@ -1065,7 +1065,7 @@ static int iss_register_entities(struct iss_device *iss) > } > > ret = media_create_pad_link(&sensor->entity, 0, input, pad, > - flags); > + flags, GFP_KERNEL); > if (ret < 0) > goto done; > } > @@ -1110,31 +1110,36 @@ static int iss_create_links(struct iss_device *iss) > /* Connect the submodules. */ > ret = media_create_pad_link( > &iss->csi2a.subdev.entity, CSI2_PAD_SOURCE, > - &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); > + &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->csi2b.subdev.entity, CSI2_PAD_SOURCE, > - &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); > + &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, > - &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); > + &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, > - &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0); > + &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > ret = media_create_pad_link( > &iss->ipipe.subdev.entity, IPIPE_PAD_SOURCE_VP, > - &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); > + &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/staging/media/omap4iss/iss_csi2.c b/drivers/staging/media/omap4iss/iss_csi2.c > index aaca39d..4b40132 100644 > --- a/drivers/staging/media/omap4iss/iss_csi2.c > +++ b/drivers/staging/media/omap4iss/iss_csi2.c > @@ -1352,13 +1352,15 @@ int omap4iss_csi2_create_links(struct iss_device *iss) > > /* Connect the CSI2a subdev to the video node. */ > ret = media_create_pad_link(&csi2a->subdev.entity, CSI2_PAD_SOURCE, > - &csi2a->video_out.video.entity, 0, 0); > + &csi2a->video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > /* Connect the CSI2b subdev to the video node. */ > ret = media_create_pad_link(&csi2b->subdev.entity, CSI2_PAD_SOURCE, > - &csi2b->video_out.video.entity, 0, 0); > + &csi2b->video_out.video.entity, 0, 0, > + GFP_KERNEL); > if (ret < 0) > return ret; > > diff --git a/drivers/staging/media/omap4iss/iss_ipipeif.c b/drivers/staging/media/omap4iss/iss_ipipeif.c > index 23de833..2f124b0 100644 > --- a/drivers/staging/media/omap4iss/iss_ipipeif.c > +++ b/drivers/staging/media/omap4iss/iss_ipipeif.c > @@ -827,7 +827,8 @@ int omap4iss_ipipeif_create_links(struct iss_device *iss) > /* Connect the IPIPEIF subdev to the video node. */ > return media_create_pad_link(&ipipeif->subdev.entity, > IPIPEIF_PAD_SOURCE_ISIF_SF, > - &ipipeif->video_out.video.entity, 0, 0); > + &ipipeif->video_out.video.entity, 0, 0, > + GFP_KERNEL); > } > > /* > diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c > index f1d352c..8d5766a 100644 > --- a/drivers/staging/media/omap4iss/iss_resizer.c > +++ b/drivers/staging/media/omap4iss/iss_resizer.c > @@ -869,7 +869,8 @@ int omap4iss_resizer_create_links(struct iss_device *iss) > /* Connect the RESIZER subdev to the video node. */ > return media_create_pad_link(&resizer->subdev.entity, > RESIZER_PAD_SOURCE_MEM, > - &resizer->video_out.video.entity, 0, 0); > + &resizer->video_out.video.entity, 0, 0, > + GFP_KERNEL); > } > > /* > diff --git a/include/media/media-entity.h b/include/media/media-entity.h > index 6dc9e4e..0665c2d 100644 > --- a/include/media/media-entity.h > +++ b/include/media/media-entity.h > @@ -595,6 +595,7 @@ static inline void media_entity_cleanup(struct media_entity *entity) {}; > * @sink: pointer to &media_entity of the sink pad. > * @sink_pad: number of the sink pad in the pads array. > * @flags: Link flags, as defined in include/uapi/linux/media.h. > + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h > * > * Valid values for flags: > * A %MEDIA_LNK_FL_ENABLED flag indicates that the link is enabled and can be > @@ -613,7 +614,7 @@ static inline void media_entity_cleanup(struct media_entity *entity) {}; > */ > __must_check int media_create_pad_link(struct media_entity *source, > u16 source_pad, struct media_entity *sink, > - u16 sink_pad, u32 flags); > + u16 sink_pad, u32 flags, gfp_t gfpflags); > > /** > * media_create_pad_links() - creates a link between two entities. > @@ -883,11 +884,12 @@ void __media_entity_pipeline_stop(struct media_entity *entity); > struct media_intf_devnode * > __must_check media_devnode_create(struct media_device *mdev, > u32 type, u32 flags, > - u32 major, u32 minor); > + u32 major, u32 minor, gfp_t gfpflags); > /** > * media_devnode_remove() - removes a device node interface > * > * @devnode: pointer to &media_intf_devnode to be freed. > + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h > * > * When a device node interface is removed, all links to it are automatically > * removed. > @@ -901,6 +903,7 @@ struct media_link * > * @entity: pointer to %media_entity > * @intf: pointer to %media_interface > * @flags: Link flags, as defined in include/uapi/linux/media.h. > + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h > * > * > * Valid values for flags: > @@ -921,7 +924,7 @@ struct media_link * > */ > __must_check media_create_intf_link(struct media_entity *entity, > struct media_interface *intf, > - u32 flags); > + u32 flags, gfp_t gfpflags); > /** > * __media_remove_intf_link() - remove a single interface link > * > diff --git a/sound/usb/media.c b/sound/usb/media.c > index 93a50d01..f5ac038 100644 > --- a/sound/usb/media.c > +++ b/sound/usb/media.c > @@ -88,14 +88,16 @@ int media_snd_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, > > mctl->intf_devnode = media_devnode_create(mdev, intf_type, 0, > MAJOR(pcm_dev->devt), > - MINOR(pcm_dev->devt)); > + MINOR(pcm_dev->devt), > + GFP_KERNEL); > if (!mctl->intf_devnode) { > ret = -ENOMEM; > goto unregister_entity; > } > mctl->intf_link = media_create_intf_link(&mctl->media_entity, > &mctl->intf_devnode->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!mctl->intf_link) { > ret = -ENOMEM; > goto devnode_remove; > @@ -107,7 +109,8 @@ int media_snd_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, > case MEDIA_ENT_F_AUDIO_MIXER: > ret = media_create_pad_link(entity, mixer_pad, > &mctl->media_entity, 0, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (ret) > goto remove_intf_link; > break; > @@ -180,7 +183,8 @@ int media_snd_mixer_init(struct snd_usb_audio *chip) > if (!ctl_intf) { > ctl_intf = media_devnode_create(mdev, intf_type, 0, > MAJOR(ctl_dev->devt), > - MINOR(ctl_dev->devt)); > + MINOR(ctl_dev->devt), > + GFP_KERNEL); > if (!ctl_intf) > return -ENOMEM; > chip->ctl_intf_media_devnode = ctl_intf; > @@ -213,7 +217,8 @@ int media_snd_mixer_init(struct snd_usb_audio *chip) > > mctl->intf_link = media_create_intf_link(&mctl->media_entity, > &ctl_intf->intf, > - MEDIA_LNK_FL_ENABLED); > + MEDIA_LNK_FL_ENABLED, > + GFP_KERNEL); > if (!mctl->intf_link) { > media_device_unregister_entity(&mctl->media_entity); > media_entity_cleanup(&mctl->media_entity);
Hi Shuah, On Sat, Mar 12, 2016 at 06:48:09PM -0700, Shuah Khan wrote: > Add GFP flags to media_create_pad_link(), media_create_intf_link(), > media_devnode_create(), and media_add_link() that could get called > in atomic context to allow callers to pass in the right flags for > memory allocation. > > tree-wide driver changes for media_*() GFP flags change: > Change drivers to add gfpflags to interffaces, media_create_pad_link(), > media_create_intf_link() and media_devnode_create(). > > Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> > Suggested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> What's the use case for calling the above functions in an atomic context?
Em Mon, 14 Mar 2016 09:22:37 +0200 Sakari Ailus <sakari.ailus@iki.fi> escreveu: > Hi Shuah, > > On Sat, Mar 12, 2016 at 06:48:09PM -0700, Shuah Khan wrote: > > Add GFP flags to media_create_pad_link(), media_create_intf_link(), > > media_devnode_create(), and media_add_link() that could get called > > in atomic context to allow callers to pass in the right flags for > > memory allocation. > > > > tree-wide driver changes for media_*() GFP flags change: > > Change drivers to add gfpflags to interffaces, media_create_pad_link(), > > media_create_intf_link() and media_devnode_create(). > > > > Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> > > Suggested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> > > What's the use case for calling the above functions in an atomic context? > ALSA code seems to do a lot of stuff at atomic context. That's what happens on my test machine when au0828 gets probed before snd-usb-audio: http://pastebin.com/LEX5LD5K It seems that ALSA USB probe routine (usb_audio_probe) happens in atomic context. Regards, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, 14 Mar 2016 11:13:58 +0100, Mauro Carvalho Chehab wrote: > > Em Mon, 14 Mar 2016 09:22:37 +0200 > Sakari Ailus <sakari.ailus@iki.fi> escreveu: > > > Hi Shuah, > > > > On Sat, Mar 12, 2016 at 06:48:09PM -0700, Shuah Khan wrote: > > > Add GFP flags to media_create_pad_link(), media_create_intf_link(), > > > media_devnode_create(), and media_add_link() that could get called > > > in atomic context to allow callers to pass in the right flags for > > > memory allocation. > > > > > > tree-wide driver changes for media_*() GFP flags change: > > > Change drivers to add gfpflags to interffaces, media_create_pad_link(), > > > media_create_intf_link() and media_devnode_create(). > > > > > > Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> > > > Suggested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> > > > > What's the use case for calling the above functions in an atomic context? > > > > ALSA code seems to do a lot of stuff at atomic context. That's what > happens on my test machine when au0828 gets probed before > snd-usb-audio: > http://pastebin.com/LEX5LD5K > > It seems that ALSA USB probe routine (usb_audio_probe) happens in > atomic context. No, usb_audio_probe() doesn't take a lock. But media_device_register_entity() seems taking a spinlock, instead. Takashi -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Mauro, On Mon, Mar 14, 2016 at 07:13:58AM -0300, Mauro Carvalho Chehab wrote: > Em Mon, 14 Mar 2016 09:22:37 +0200 > Sakari Ailus <sakari.ailus@iki.fi> escreveu: > > > Hi Shuah, > > > > On Sat, Mar 12, 2016 at 06:48:09PM -0700, Shuah Khan wrote: > > > Add GFP flags to media_create_pad_link(), media_create_intf_link(), > > > media_devnode_create(), and media_add_link() that could get called > > > in atomic context to allow callers to pass in the right flags for > > > memory allocation. > > > > > > tree-wide driver changes for media_*() GFP flags change: > > > Change drivers to add gfpflags to interffaces, media_create_pad_link(), > > > media_create_intf_link() and media_devnode_create(). > > > > > > Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> > > > Suggested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> > > > > What's the use case for calling the above functions in an atomic context? > > > > ALSA code seems to do a lot of stuff at atomic context. That's what > happens on my test machine when au0828 gets probed before > snd-usb-audio: > http://pastebin.com/LEX5LD5K > > It seems that ALSA USB probe routine (usb_audio_probe) happens in > atomic context. usb_audio_probe() grabs a mutex (register_mutex) on its own. It certainly cannot be called in atomic context. In the above log, what I did notice, though, was that because *we* grab mdev->lock spinlock in media_device_register_entity(), we may not sleep which is what the notify() callback implementation in au0828 driver does (for memory allocation). Could we instead replace mdev->lock by a mutex? If there is no pressing need to implement atomic memory allocation I simply wouldn't do it, especially in device initialisation where an allocation failure will lead to probe failure as well.
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c index e1684c5..57f3e1e 100644 --- a/drivers/media/dvb-core/dvbdev.c +++ b/drivers/media/dvb-core/dvbdev.c @@ -399,7 +399,8 @@ static int dvb_register_media_device(struct dvb_device *dvbdev, dvbdev->intf_devnode = media_devnode_create(dvbdev->adapter->mdev, intf_type, 0, - DVB_MAJOR, minor); + DVB_MAJOR, minor, + GFP_KERNEL); if (!dvbdev->intf_devnode) return -ENOMEM; @@ -416,7 +417,7 @@ static int dvb_register_media_device(struct dvb_device *dvbdev, return 0; link = media_create_intf_link(dvbdev->entity, &dvbdev->intf_devnode->intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); if (!link) return -ENOMEM; #endif @@ -558,7 +559,8 @@ static int dvb_create_io_intf_links(struct dvb_adapter *adap, if (strncmp(entity->name, name, strlen(name))) continue; link = media_create_intf_link(entity, intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!link) return -ENOMEM; } @@ -680,7 +682,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, } if (demux && ca) { ret = media_create_pad_link(demux, 1, ca, - 0, MEDIA_LNK_FL_ENABLED); + 0, MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) return -ENOMEM; } @@ -693,7 +696,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, strlen(DVR_TSOUT))) { ret = media_create_pad_link(demux, ++dvr_pad, - entity, 0, 0); + entity, 0, 0, + GFP_KERNEL); if (ret) return ret; } @@ -701,7 +705,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, strlen(DEMUX_TSOUT))) { ret = media_create_pad_link(demux, ++demux_pad, - entity, 0, 0); + entity, 0, 0, + GFP_KERNEL); if (ret) return ret; } @@ -713,14 +718,16 @@ int dvb_create_media_graph(struct dvb_adapter *adap, media_device_for_each_intf(intf, mdev) { if (intf->type == MEDIA_INTF_T_DVB_CA && ca) { link = media_create_intf_link(ca, intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!link) return -ENOMEM; } if (intf->type == MEDIA_INTF_T_DVB_FE && tuner) { link = media_create_intf_link(tuner, intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!link) return -ENOMEM; } @@ -732,7 +739,8 @@ int dvb_create_media_graph(struct dvb_adapter *adap, */ if (intf->type == MEDIA_INTF_T_DVB_DVR && demux) { link = media_create_intf_link(demux, intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!link) return -ENOMEM; } diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c index 08af58f..dd994f1 100644 --- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c +++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c @@ -1484,11 +1484,13 @@ static int s5c73m3_oif_registered(struct v4l2_subdev *sd) ret = media_create_pad_link(&state->sensor_sd.entity, S5C73M3_ISP_PAD, &state->oif_sd.entity, OIF_ISP_PAD, - MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); ret = media_create_pad_link(&state->sensor_sd.entity, S5C73M3_JPEG_PAD, &state->oif_sd.entity, OIF_JPEG_PAD, - MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); return ret; } diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c index db82ed0..3692bec 100644 --- a/drivers/media/i2c/s5k5baf.c +++ b/drivers/media/i2c/s5k5baf.c @@ -1759,7 +1759,8 @@ static int s5k5baf_registered(struct v4l2_subdev *sd) ret = media_create_pad_link(&state->cis_sd.entity, PAD_CIS, &state->sd.entity, PAD_CIS, MEDIA_LNK_FL_IMMUTABLE | - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); return ret; } diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c index a215efe..8c2e9ad 100644 --- a/drivers/media/i2c/smiapp/smiapp-core.c +++ b/drivers/media/i2c/smiapp/smiapp-core.c @@ -2508,7 +2508,8 @@ static int smiapp_register_subdevs(struct smiapp_sensor *sensor) &last->sd.entity, last->sink_pad, MEDIA_LNK_FL_ENABLED | - MEDIA_LNK_FL_IMMUTABLE); + MEDIA_LNK_FL_IMMUTABLE, + GFP_KERNEL); if (rval) { dev_err(&client->dev, "media_create_pad_link failed\n"); diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c index ff18444..fd99683 100644 --- a/drivers/media/i2c/tvp5150.c +++ b/drivers/media/i2c/tvp5150.c @@ -1197,7 +1197,8 @@ static int tvp5150_registered_async(struct v4l2_subdev *sd) return ret; ret = media_create_pad_link(input, 0, &sd->entity, - DEMOD_PAD_IF_INPUT, 0); + DEMOD_PAD_IF_INPUT, 0, + GFP_KERNEL); if (ret < 0) { media_device_unregister_entity(input); return ret; diff --git a/drivers/media/media-entity.c b/drivers/media/media-entity.c index 66a5392..115435b 100644 --- a/drivers/media/media-entity.c +++ b/drivers/media/media-entity.c @@ -566,14 +566,14 @@ EXPORT_SYMBOL_GPL(media_entity_put); * Links management */ -static struct media_link *media_add_link(struct list_head *head) +static struct media_link *media_add_link(struct list_head *head, gfp_t gfpflags) { struct media_link *link; if (in_atomic()) dump_stack(); - link = kzalloc(sizeof(*link), GFP_KERNEL); + link = kzalloc(sizeof(*link), gfpflags); if (link == NULL) return NULL; @@ -615,7 +615,8 @@ static void __media_entity_remove_link(struct media_entity *entity, int media_create_pad_link(struct media_entity *source, u16 source_pad, - struct media_entity *sink, u16 sink_pad, u32 flags) + struct media_entity *sink, u16 sink_pad, u32 flags, + gfp_t gfpflags) { struct media_link *link; struct media_link *backlink; @@ -624,7 +625,7 @@ media_create_pad_link(struct media_entity *source, u16 source_pad, BUG_ON(source_pad >= source->num_pads); BUG_ON(sink_pad >= sink->num_pads); - link = media_add_link(&source->links); + link = media_add_link(&source->links, gfpflags); if (link == NULL) return -ENOMEM; @@ -639,7 +640,7 @@ media_create_pad_link(struct media_entity *source, u16 source_pad, /* Create the backlink. Backlinks are used to help graph traversal and * are not reported to userspace. */ - backlink = media_add_link(&sink->links); + backlink = media_add_link(&sink->links, gfpflags); if (backlink == NULL) { __media_entity_remove_link(source, link); return -ENOMEM; @@ -682,7 +683,7 @@ int media_create_pad_links(const struct media_device *mdev, /* Trivial case: 1:1 relation */ if (source && sink) return media_create_pad_link(source, source_pad, - sink, sink_pad, flags); + sink, sink_pad, flags, GFP_KERNEL); /* Worse case scenario: n:n relation */ if (!source && !sink) { @@ -696,7 +697,7 @@ int media_create_pad_links(const struct media_device *mdev, continue; ret = media_create_pad_link(source, source_pad, sink, sink_pad, - flags); + flags, GFP_KERNEL); if (ret) return ret; flags &= ~(MEDIA_LNK_FL_ENABLED | @@ -718,10 +719,12 @@ int media_create_pad_links(const struct media_device *mdev, if (source) ret = media_create_pad_link(source, source_pad, - entity, sink_pad, flags); + entity, sink_pad, flags, + GFP_KERNEL); else ret = media_create_pad_link(entity, source_pad, - sink, sink_pad, flags); + sink, sink_pad, flags, + GFP_KERNEL); if (ret) return ret; flags &= ~(MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); @@ -890,14 +893,15 @@ static void media_interface_init(struct media_device *mdev, struct media_intf_devnode *media_devnode_create(struct media_device *mdev, u32 type, u32 flags, - u32 major, u32 minor) + u32 major, u32 minor, + gfp_t gfpflags) { struct media_intf_devnode *devnode; if (in_atomic()) dump_stack(); - devnode = kzalloc(sizeof(*devnode), GFP_KERNEL); + devnode = kzalloc(sizeof(*devnode), gfpflags); if (!devnode) return NULL; @@ -921,11 +925,11 @@ EXPORT_SYMBOL_GPL(media_devnode_remove); struct media_link *media_create_intf_link(struct media_entity *entity, struct media_interface *intf, - u32 flags) + u32 flags, gfp_t gfpflags) { struct media_link *link; - link = media_add_link(&intf->links); + link = media_add_link(&intf->links, gfpflags); if (link == NULL) return NULL; diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index feb521f..145d90e 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -798,7 +798,8 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, sink = &fmd->fimc[i]->vid_cap.subdev.entity; ret = media_create_pad_link(source, pad, sink, - FIMC_SD_PAD_SINK_CAM, flags); + FIMC_SD_PAD_SINK_CAM, flags, + GFP_KERNEL); if (ret) return ret; @@ -818,7 +819,8 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, sink = &fmd->fimc_lite[i]->subdev.entity; ret = media_create_pad_link(source, pad, sink, - FLITE_SD_PAD_SINK, 0); + FLITE_SD_PAD_SINK, 0, + GFP_KERNEL); if (ret) return ret; @@ -850,13 +852,13 @@ static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) sink = &fimc->ve.vdev.entity; /* FIMC-LITE's subdev and video node */ ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_DMA, - sink, 0, 0); + sink, 0, 0, GFP_KERNEL); if (ret) break; /* Link from FIMC-LITE to IS-ISP subdev */ sink = &fmd->fimc_is->isp.subdev.entity; ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_ISP, - sink, 0, 0); + sink, 0, 0, GFP_KERNEL); if (ret) break; } @@ -880,7 +882,8 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) /* Link from FIMC-IS-ISP subdev to FIMC */ sink = &fmd->fimc[i]->vid_cap.subdev.entity; ret = media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, - sink, FIMC_SD_PAD_SINK_FIFO, 0); + sink, FIMC_SD_PAD_SINK_FIFO, 0, + GFP_KERNEL); if (ret) return ret; } @@ -893,7 +896,7 @@ static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) return 0; return media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_DMA, - sink, 0, 0); + sink, 0, 0, GFP_KERNEL); } /** @@ -944,7 +947,7 @@ static int fimc_md_create_links(struct fimc_md *fmd) ret = media_create_pad_link(&sensor->entity, pad, &csis->entity, CSIS_PAD_SINK, MEDIA_LNK_FL_IMMUTABLE | - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); if (ret) return ret; @@ -996,7 +999,7 @@ static int fimc_md_create_links(struct fimc_md *fmd) sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; ret = media_create_pad_link(source, FIMC_SD_PAD_SOURCE, - sink, 0, flags); + sink, 0, flags, GFP_KERNEL); if (ret) break; } diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 5d54e2c..f8d9c84 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -1669,7 +1669,7 @@ static int isp_link_entity( return -EINVAL; } - return media_create_pad_link(entity, i, input, pad, flags); + return media_create_pad_link(entity, i, input, pad, flags, GFP_KERNEL); } static int isp_register_entities(struct isp_device *isp) @@ -1748,43 +1748,50 @@ static int isp_create_links(struct isp_device *isp) /* Create links between entities and video nodes. */ ret = media_create_pad_link( &isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE, - &isp->isp_csi2a.video_out.video.entity, 0, 0); + &isp->isp_csi2a.video_out.video.entity, 0, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccp2.video_in.video.entity, 0, - &isp->isp_ccp2.subdev.entity, CCP2_PAD_SINK, 0); + &isp->isp_ccp2.subdev.entity, CCP2_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF, - &isp->isp_ccdc.video_out.video.entity, 0, 0); + &isp->isp_ccdc.video_out.video.entity, 0, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_prev.video_in.video.entity, 0, - &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0); + &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_prev.subdev.entity, PREV_PAD_SOURCE, - &isp->isp_prev.video_out.video.entity, 0, 0); + &isp->isp_prev.video_out.video.entity, 0, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_res.video_in.video.entity, 0, - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_res.subdev.entity, RESZ_PAD_SOURCE, - &isp->isp_res.video_out.video.entity, 0, 0); + &isp->isp_res.video_out.video.entity, 0, 0, + GFP_KERNEL); if (ret < 0) return ret; @@ -1792,52 +1799,60 @@ static int isp_create_links(struct isp_device *isp) /* Create links between entities. */ ret = media_create_pad_link( &isp->isp_csi2a.subdev.entity, CSI2_PAD_SOURCE, - &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0); + &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccp2.subdev.entity, CCP2_PAD_SOURCE, - &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0); + &isp->isp_ccdc.subdev.entity, CCDC_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, - &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0); + &isp->isp_prev.subdev.entity, PREV_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_OF, - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_prev.subdev.entity, PREV_PAD_SOURCE, - &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0); + &isp->isp_res.subdev.entity, RESZ_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, &isp->isp_aewb.subdev.entity, 0, - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, &isp->isp_af.subdev.entity, 0, - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &isp->isp_ccdc.subdev.entity, CCDC_PAD_SOURCE_VP, &isp->isp_hist.subdev.entity, 0, - MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE); + MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE, + GFP_KERNEL); if (ret < 0) return ret; diff --git a/drivers/media/platform/s3c-camif/camif-core.c b/drivers/media/platform/s3c-camif/camif-core.c index 0b44b9a..a49b4c3 100644 --- a/drivers/media/platform/s3c-camif/camif-core.c +++ b/drivers/media/platform/s3c-camif/camif-core.c @@ -266,7 +266,7 @@ static int camif_create_media_links(struct camif_dev *camif) ret = media_create_pad_link(&camif->sensor.sd->entity, 0, &camif->subdev.entity, CAMIF_SD_PAD_SINK, MEDIA_LNK_FL_IMMUTABLE | - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); if (ret) return ret; @@ -274,7 +274,7 @@ static int camif_create_media_links(struct camif_dev *camif) ret = media_create_pad_link(&camif->subdev.entity, i, &camif->vp[i - 1].vdev.entity, 0, MEDIA_LNK_FL_IMMUTABLE | - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); } return ret; diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c index 021fe57..f868dec 100644 --- a/drivers/media/platform/vsp1/vsp1_drm.c +++ b/drivers/media/platform/vsp1/vsp1_drm.c @@ -525,7 +525,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) ret = media_create_pad_link(&rpf->entity.subdev.entity, RWPF_PAD_SOURCE, &vsp1->bru->entity.subdev.entity, - i, flags); + i, flags, GFP_KERNEL); if (ret < 0) return ret; @@ -536,7 +536,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) ret = media_create_pad_link(&vsp1->bru->entity.subdev.entity, vsp1->bru->entity.source_pad, &vsp1->wpf[0]->entity.subdev.entity, - RWPF_PAD_SINK, flags); + RWPF_PAD_SINK, flags, GFP_KERNEL); if (ret < 0) return ret; @@ -546,7 +546,7 @@ int vsp1_drm_create_links(struct vsp1_device *vsp1) ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity, RWPF_PAD_SOURCE, &vsp1->lif->entity.subdev.entity, - LIF_PAD_SINK, flags); + LIF_PAD_SINK, flags, GFP_KERNEL); if (ret < 0) return ret; diff --git a/drivers/media/platform/vsp1/vsp1_drv.c b/drivers/media/platform/vsp1/vsp1_drv.c index 25750a0..7295587 100644 --- a/drivers/media/platform/vsp1/vsp1_drv.c +++ b/drivers/media/platform/vsp1/vsp1_drv.c @@ -125,7 +125,8 @@ static int vsp1_create_sink_links(struct vsp1_device *vsp1, ret = media_create_pad_link(&source->subdev.entity, source->source_pad, - entity, pad, flags); + entity, pad, flags, + GFP_KERNEL); if (ret < 0) return ret; @@ -157,7 +158,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) ret = media_create_pad_link(&vsp1->wpf[0]->entity.subdev.entity, RWPF_PAD_SOURCE, &vsp1->lif->entity.subdev.entity, - LIF_PAD_SINK, 0); + LIF_PAD_SINK, 0, GFP_KERNEL); if (ret < 0) return ret; } @@ -169,7 +170,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) &rpf->entity.subdev.entity, RWPF_PAD_SINK, MEDIA_LNK_FL_ENABLED | - MEDIA_LNK_FL_IMMUTABLE); + MEDIA_LNK_FL_IMMUTABLE, GFP_KERNEL); if (ret < 0) return ret; } @@ -188,7 +189,7 @@ static int vsp1_uapi_create_links(struct vsp1_device *vsp1) ret = media_create_pad_link(&wpf->entity.subdev.entity, RWPF_PAD_SOURCE, &wpf->video->video.entity, 0, - flags); + flags, GFP_KERNEL); if (ret < 0) return ret; } diff --git a/drivers/media/platform/xilinx/xilinx-vipp.c b/drivers/media/platform/xilinx/xilinx-vipp.c index e795a45..b444db4 100644 --- a/drivers/media/platform/xilinx/xilinx-vipp.c +++ b/drivers/media/platform/xilinx/xilinx-vipp.c @@ -158,7 +158,7 @@ static int xvip_graph_build_one(struct xvip_composite_device *xdev, ret = media_create_pad_link(local, local_pad->index, remote, remote_pad->index, - link_flags); + link_flags, GFP_KERNEL); if (ret < 0) { dev_err(xdev->dev, "failed to create %s:%u -> %s:%u link\n", @@ -272,7 +272,7 @@ static int xvip_graph_build_dma(struct xvip_composite_device *xdev) ret = media_create_pad_link(source, source_pad->index, sink, sink_pad->index, - link_flags); + link_flags, GFP_KERNEL); if (ret < 0) { dev_err(xdev->dev, "failed to create %s:%u -> %s:%u link\n", diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c index 552ac58..de9ab11 100644 --- a/drivers/media/usb/au0828/au0828-core.c +++ b/drivers/media/usb/au0828/au0828-core.c @@ -251,7 +251,8 @@ create_link: ret = media_create_pad_link(decoder, DEMOD_PAD_AUDIO_OUT, mixer, 0, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) dev_err(&dev->usbdev->dev, "Mixer Pad Link Create Error: %d\n", ret); diff --git a/drivers/media/usb/uvc/uvc_entity.c b/drivers/media/usb/uvc/uvc_entity.c index ac386bb..d9555dc 100644 --- a/drivers/media/usb/uvc/uvc_entity.c +++ b/drivers/media/usb/uvc/uvc_entity.c @@ -53,7 +53,7 @@ static int uvc_mc_create_links(struct uvc_video_chain *chain, remote_pad = remote->num_pads - 1; ret = media_create_pad_link(source, remote_pad, - sink, i, flags); + sink, i, flags, GFP_KERNEL); if (ret < 0) return ret; } diff --git a/drivers/media/v4l2-core/v4l2-dev.c b/drivers/media/v4l2-core/v4l2-dev.c index d8e5994..b0f53a2 100644 --- a/drivers/media/v4l2-core/v4l2-dev.c +++ b/drivers/media/v4l2-core/v4l2-dev.c @@ -786,7 +786,7 @@ static int video_register_media_controller(struct video_device *vdev, int type) vdev->intf_devnode = media_devnode_create(vdev->v4l2_dev->mdev, intf_type, 0, VIDEO_MAJOR, - vdev->minor); + vdev->minor, GFP_KERNEL); if (!vdev->intf_devnode) { media_device_unregister_entity(&vdev->entity); return -ENOMEM; @@ -797,7 +797,8 @@ static int video_register_media_controller(struct video_device *vdev, int type) link = media_create_intf_link(&vdev->entity, &vdev->intf_devnode->intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!link) { media_devnode_remove(vdev->intf_devnode); media_device_unregister_entity(&vdev->entity); diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c index 06fa5f1..c7514e7 100644 --- a/drivers/media/v4l2-core/v4l2-device.c +++ b/drivers/media/v4l2-core/v4l2-device.c @@ -266,7 +266,8 @@ int v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev) link = media_create_intf_link(&sd->entity, &vdev->intf_devnode->intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!link) { err = -ENOMEM; goto clean_up; diff --git a/drivers/media/v4l2-core/v4l2-mc.c b/drivers/media/v4l2-core/v4l2-mc.c index 40ee864..b1652f9 100644 --- a/drivers/media/v4l2-core/v4l2-mc.c +++ b/drivers/media/v4l2-core/v4l2-mc.c @@ -92,7 +92,8 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) continue; ret = media_create_pad_link(entity, 0, io_v4l, 0, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) return ret; } @@ -110,18 +111,21 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT, if_vid, IF_VID_DEC_PAD_IF_INPUT, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) return ret; ret = media_create_pad_link(if_vid, IF_VID_DEC_PAD_OUT, decoder, DEMOD_PAD_IF_INPUT, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) return ret; } else { ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT, decoder, DEMOD_PAD_IF_INPUT, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) return ret; } @@ -130,7 +134,8 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) ret = media_create_pad_link(tuner, TUNER_PAD_AUD_OUT, if_aud, IF_AUD_DEC_PAD_IF_INPUT, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) return ret; } else { @@ -143,7 +148,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) if (io_v4l) { ret = media_create_pad_link(decoder, DEMOD_PAD_VID_OUT, io_v4l, 0, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); if (ret) return ret; } @@ -151,7 +156,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) if (io_swradio) { ret = media_create_pad_link(decoder, DEMOD_PAD_VID_OUT, io_swradio, 0, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); if (ret) return ret; } @@ -159,7 +164,7 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) if (io_vbi) { ret = media_create_pad_link(decoder, DEMOD_PAD_VBI_OUT, io_vbi, 0, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, GFP_KERNEL); if (ret) return ret; } @@ -174,13 +179,13 @@ int v4l2_mc_create_media_graph(struct media_device *mdev) ret = media_create_pad_link(entity, 0, tuner, TUNER_PAD_RF_INPUT, - flags); + flags, GFP_KERNEL); break; case MEDIA_ENT_F_CONN_SVIDEO: case MEDIA_ENT_F_CONN_COMPOSITE: ret = media_create_pad_link(entity, 0, decoder, DEMOD_PAD_IF_INPUT, - flags); + flags, GFP_KERNEL); break; default: continue; diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c index 633d645..d1442b9 100644 --- a/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c +++ b/drivers/staging/media/davinci_vpfe/dm365_ipipeif.c @@ -977,7 +977,8 @@ vpfe_ipipeif_register_entities(struct vpfe_ipipeif_device *ipipeif, flags = 0; ret = media_create_pad_link(&ipipeif->video_in.video_dev.entity, 0, - &ipipeif->subdev.entity, 0, flags); + &ipipeif->subdev.entity, 0, flags, + GFP_KERNEL); if (ret < 0) goto fail; diff --git a/drivers/staging/media/davinci_vpfe/dm365_isif.c b/drivers/staging/media/davinci_vpfe/dm365_isif.c index 9905789..2470655 100644 --- a/drivers/staging/media/davinci_vpfe/dm365_isif.c +++ b/drivers/staging/media/davinci_vpfe/dm365_isif.c @@ -1824,7 +1824,7 @@ int vpfe_isif_register_entities(struct vpfe_isif_device *isif, /* connect isif to video node */ ret = media_create_pad_link(&isif->subdev.entity, 1, &isif->video_out.video_dev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_create_link; return 0; diff --git a/drivers/staging/media/davinci_vpfe/dm365_resizer.c b/drivers/staging/media/davinci_vpfe/dm365_resizer.c index a91395c..067f699 100644 --- a/drivers/staging/media/davinci_vpfe/dm365_resizer.c +++ b/drivers/staging/media/davinci_vpfe/dm365_resizer.c @@ -1833,26 +1833,28 @@ int vpfe_resizer_register_entities(struct vpfe_resizer_device *resizer, /* create link between Resizer Crop----> Resizer A*/ ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 1, &resizer->resizer_a.subdev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_create_link; /* create link between Resizer Crop----> Resizer B*/ ret = media_create_pad_link(&resizer->crop_resizer.subdev.entity, 2, &resizer->resizer_b.subdev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_create_link; /* create link between Resizer A ----> video out */ ret = media_create_pad_link(&resizer->resizer_a.subdev.entity, 1, - &resizer->resizer_a.video_out.video_dev.entity, 0, flags); + &resizer->resizer_a.video_out.video_dev.entity, 0, flags, + GFP_KERNEL); if (ret < 0) goto out_create_link; /* create link between Resizer B ----> video out */ ret = media_create_pad_link(&resizer->resizer_b.subdev.entity, 1, - &resizer->resizer_b.video_out.video_dev.entity, 0, flags); + &resizer->resizer_b.video_out.video_dev.entity, 0, flags, + GFP_KERNEL); if (ret < 0) goto out_create_link; diff --git a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c index ec46f36..bee9f5c 100644 --- a/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c +++ b/drivers/staging/media/davinci_vpfe/vpfe_mc_capture.c @@ -447,32 +447,32 @@ static int vpfe_register_entities(struct vpfe_device *vpfe_dev) if (vpfe_dev->sd[i]->entity.num_pads) { ret = media_create_pad_link(&vpfe_dev->sd[i]->entity, 0, &vpfe_dev->vpfe_isif.subdev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_resizer_register; } ret = media_create_pad_link(&vpfe_dev->vpfe_isif.subdev.entity, 1, &vpfe_dev->vpfe_ipipeif.subdev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_resizer_register; ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1, &vpfe_dev->vpfe_ipipe.subdev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_resizer_register; ret = media_create_pad_link(&vpfe_dev->vpfe_ipipe.subdev.entity, 1, &vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_resizer_register; ret = media_create_pad_link(&vpfe_dev->vpfe_ipipeif.subdev.entity, 1, &vpfe_dev->vpfe_resizer.crop_resizer.subdev.entity, - 0, flags); + 0, flags, GFP_KERNEL); if (ret < 0) goto out_resizer_register; diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c index fb80d2b..933c8a7 100644 --- a/drivers/staging/media/omap4iss/iss.c +++ b/drivers/staging/media/omap4iss/iss.c @@ -1065,7 +1065,7 @@ static int iss_register_entities(struct iss_device *iss) } ret = media_create_pad_link(&sensor->entity, 0, input, pad, - flags); + flags, GFP_KERNEL); if (ret < 0) goto done; } @@ -1110,31 +1110,36 @@ static int iss_create_links(struct iss_device *iss) /* Connect the submodules. */ ret = media_create_pad_link( &iss->csi2a.subdev.entity, CSI2_PAD_SOURCE, - &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); + &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &iss->csi2b.subdev.entity, CSI2_PAD_SOURCE, - &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0); + &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, - &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); + &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &iss->ipipeif.subdev.entity, IPIPEIF_PAD_SOURCE_VP, - &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0); + &iss->ipipe.subdev.entity, IPIPE_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; ret = media_create_pad_link( &iss->ipipe.subdev.entity, IPIPE_PAD_SOURCE_VP, - &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0); + &iss->resizer.subdev.entity, RESIZER_PAD_SINK, 0, + GFP_KERNEL); if (ret < 0) return ret; diff --git a/drivers/staging/media/omap4iss/iss_csi2.c b/drivers/staging/media/omap4iss/iss_csi2.c index aaca39d..4b40132 100644 --- a/drivers/staging/media/omap4iss/iss_csi2.c +++ b/drivers/staging/media/omap4iss/iss_csi2.c @@ -1352,13 +1352,15 @@ int omap4iss_csi2_create_links(struct iss_device *iss) /* Connect the CSI2a subdev to the video node. */ ret = media_create_pad_link(&csi2a->subdev.entity, CSI2_PAD_SOURCE, - &csi2a->video_out.video.entity, 0, 0); + &csi2a->video_out.video.entity, 0, 0, + GFP_KERNEL); if (ret < 0) return ret; /* Connect the CSI2b subdev to the video node. */ ret = media_create_pad_link(&csi2b->subdev.entity, CSI2_PAD_SOURCE, - &csi2b->video_out.video.entity, 0, 0); + &csi2b->video_out.video.entity, 0, 0, + GFP_KERNEL); if (ret < 0) return ret; diff --git a/drivers/staging/media/omap4iss/iss_ipipeif.c b/drivers/staging/media/omap4iss/iss_ipipeif.c index 23de833..2f124b0 100644 --- a/drivers/staging/media/omap4iss/iss_ipipeif.c +++ b/drivers/staging/media/omap4iss/iss_ipipeif.c @@ -827,7 +827,8 @@ int omap4iss_ipipeif_create_links(struct iss_device *iss) /* Connect the IPIPEIF subdev to the video node. */ return media_create_pad_link(&ipipeif->subdev.entity, IPIPEIF_PAD_SOURCE_ISIF_SF, - &ipipeif->video_out.video.entity, 0, 0); + &ipipeif->video_out.video.entity, 0, 0, + GFP_KERNEL); } /* diff --git a/drivers/staging/media/omap4iss/iss_resizer.c b/drivers/staging/media/omap4iss/iss_resizer.c index f1d352c..8d5766a 100644 --- a/drivers/staging/media/omap4iss/iss_resizer.c +++ b/drivers/staging/media/omap4iss/iss_resizer.c @@ -869,7 +869,8 @@ int omap4iss_resizer_create_links(struct iss_device *iss) /* Connect the RESIZER subdev to the video node. */ return media_create_pad_link(&resizer->subdev.entity, RESIZER_PAD_SOURCE_MEM, - &resizer->video_out.video.entity, 0, 0); + &resizer->video_out.video.entity, 0, 0, + GFP_KERNEL); } /* diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 6dc9e4e..0665c2d 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -595,6 +595,7 @@ static inline void media_entity_cleanup(struct media_entity *entity) {}; * @sink: pointer to &media_entity of the sink pad. * @sink_pad: number of the sink pad in the pads array. * @flags: Link flags, as defined in include/uapi/linux/media.h. + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h * * Valid values for flags: * A %MEDIA_LNK_FL_ENABLED flag indicates that the link is enabled and can be @@ -613,7 +614,7 @@ static inline void media_entity_cleanup(struct media_entity *entity) {}; */ __must_check int media_create_pad_link(struct media_entity *source, u16 source_pad, struct media_entity *sink, - u16 sink_pad, u32 flags); + u16 sink_pad, u32 flags, gfp_t gfpflags); /** * media_create_pad_links() - creates a link between two entities. @@ -883,11 +884,12 @@ void __media_entity_pipeline_stop(struct media_entity *entity); struct media_intf_devnode * __must_check media_devnode_create(struct media_device *mdev, u32 type, u32 flags, - u32 major, u32 minor); + u32 major, u32 minor, gfp_t gfpflags); /** * media_devnode_remove() - removes a device node interface * * @devnode: pointer to &media_intf_devnode to be freed. + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h * * When a device node interface is removed, all links to it are automatically * removed. @@ -901,6 +903,7 @@ struct media_link * * @entity: pointer to %media_entity * @intf: pointer to %media_interface * @flags: Link flags, as defined in include/uapi/linux/media.h. + * @gfpflags: Get Free Page (GFP) flags, as defined in include/linux/gfp.h * * * Valid values for flags: @@ -921,7 +924,7 @@ struct media_link * */ __must_check media_create_intf_link(struct media_entity *entity, struct media_interface *intf, - u32 flags); + u32 flags, gfp_t gfpflags); /** * __media_remove_intf_link() - remove a single interface link * diff --git a/sound/usb/media.c b/sound/usb/media.c index 93a50d01..f5ac038 100644 --- a/sound/usb/media.c +++ b/sound/usb/media.c @@ -88,14 +88,16 @@ int media_snd_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, mctl->intf_devnode = media_devnode_create(mdev, intf_type, 0, MAJOR(pcm_dev->devt), - MINOR(pcm_dev->devt)); + MINOR(pcm_dev->devt), + GFP_KERNEL); if (!mctl->intf_devnode) { ret = -ENOMEM; goto unregister_entity; } mctl->intf_link = media_create_intf_link(&mctl->media_entity, &mctl->intf_devnode->intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!mctl->intf_link) { ret = -ENOMEM; goto devnode_remove; @@ -107,7 +109,8 @@ int media_snd_stream_init(struct snd_usb_substream *subs, struct snd_pcm *pcm, case MEDIA_ENT_F_AUDIO_MIXER: ret = media_create_pad_link(entity, mixer_pad, &mctl->media_entity, 0, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (ret) goto remove_intf_link; break; @@ -180,7 +183,8 @@ int media_snd_mixer_init(struct snd_usb_audio *chip) if (!ctl_intf) { ctl_intf = media_devnode_create(mdev, intf_type, 0, MAJOR(ctl_dev->devt), - MINOR(ctl_dev->devt)); + MINOR(ctl_dev->devt), + GFP_KERNEL); if (!ctl_intf) return -ENOMEM; chip->ctl_intf_media_devnode = ctl_intf; @@ -213,7 +217,8 @@ int media_snd_mixer_init(struct snd_usb_audio *chip) mctl->intf_link = media_create_intf_link(&mctl->media_entity, &ctl_intf->intf, - MEDIA_LNK_FL_ENABLED); + MEDIA_LNK_FL_ENABLED, + GFP_KERNEL); if (!mctl->intf_link) { media_device_unregister_entity(&mctl->media_entity); media_entity_cleanup(&mctl->media_entity);
Add GFP flags to media_create_pad_link(), media_create_intf_link(), media_devnode_create(), and media_add_link() that could get called in atomic context to allow callers to pass in the right flags for memory allocation. tree-wide driver changes for media_*() GFP flags change: Change drivers to add gfpflags to interffaces, media_create_pad_link(), media_create_intf_link() and media_devnode_create(). Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Suggested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> --- Ran through kbuild-all compile testing. Tested the changes in Win-TV HVR-950Q device drivers/media/dvb-core/dvbdev.c | 26 +++++++----- drivers/media/i2c/s5c73m3/s5c73m3-core.c | 6 ++- drivers/media/i2c/s5k5baf.c | 3 +- drivers/media/i2c/smiapp/smiapp-core.c | 3 +- drivers/media/i2c/tvp5150.c | 3 +- drivers/media/media-entity.c | 30 ++++++++------ drivers/media/platform/exynos4-is/media-dev.c | 19 +++++---- drivers/media/platform/omap3isp/isp.c | 47 ++++++++++++++-------- drivers/media/platform/s3c-camif/camif-core.c | 4 +- drivers/media/platform/vsp1/vsp1_drm.c | 6 +-- drivers/media/platform/vsp1/vsp1_drv.c | 9 +++-- drivers/media/platform/xilinx/xilinx-vipp.c | 4 +- drivers/media/usb/au0828/au0828-core.c | 3 +- drivers/media/usb/uvc/uvc_entity.c | 2 +- drivers/media/v4l2-core/v4l2-dev.c | 5 ++- drivers/media/v4l2-core/v4l2-device.c | 3 +- drivers/media/v4l2-core/v4l2-mc.c | 25 +++++++----- drivers/staging/media/davinci_vpfe/dm365_ipipeif.c | 3 +- drivers/staging/media/davinci_vpfe/dm365_isif.c | 2 +- drivers/staging/media/davinci_vpfe/dm365_resizer.c | 10 +++-- .../staging/media/davinci_vpfe/vpfe_mc_capture.c | 10 ++--- drivers/staging/media/omap4iss/iss.c | 17 +++++--- drivers/staging/media/omap4iss/iss_csi2.c | 6 ++- drivers/staging/media/omap4iss/iss_ipipeif.c | 3 +- drivers/staging/media/omap4iss/iss_resizer.c | 3 +- include/media/media-entity.h | 9 +++-- sound/usb/media.c | 15 ++++--- 27 files changed, 170 insertions(+), 106 deletions(-)