| Message ID | 20230903081440.1564633-3-ruanjinjie@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: cx231xx: Switch to use kmemdup() helper and add two macros | expand |
Hi, W dniu 3.09.2023 o 10:14, Jinjie Ruan pisze: > Define EP5_BUF_SIZE and EP5_TIMEOUT_MS macros to make the code > more readable. > > Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> > Suggested-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> > --- > v2: > - Adjust the patch to be the second. > - Adjust the macro name. > --- > drivers/media/usb/cx231xx/cx231xx-core.c | 4 ++-- > drivers/media/usb/cx231xx/cx231xx.h | 3 +++ > 2 files changed, 5 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c > index 746727ea1a4c..57a8b4780a7d 100644 > --- a/drivers/media/usb/cx231xx/cx231xx-core.c > +++ b/drivers/media/usb/cx231xx/cx231xx-core.c > @@ -751,12 +751,12 @@ int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size) > int ret = -ENOMEM; > u32 *buffer; > > - buffer = kmemdup(firmware, 4096, GFP_KERNEL); > + buffer = kmemdup(firmware, EP5_BUF_SIZE, GFP_KERNEL); > if (buffer == NULL) > return -ENOMEM; > > ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5), > - buffer, 4096, &actlen, 2000); > + buffer, EP5_BUF_SIZE, &actlen, EP5_TIMEOUT_MS); > $ git grep 4096 drivers/media/usb/cx231xx | sort | wc -l 6 4096 is a pretty popular constant in this driver. What about the other 4 places? Andrzej > if (ret) > dev_err(dev->dev, > diff --git a/drivers/media/usb/cx231xx/cx231xx.h b/drivers/media/usb/cx231xx/cx231xx.h > index 6929e4d97067..74339a6a2f71 100644 > --- a/drivers/media/usb/cx231xx/cx231xx.h > +++ b/drivers/media/usb/cx231xx/cx231xx.h > @@ -120,6 +120,9 @@ > #define CX23417_OSC_EN 8 > #define CX23417_RESET 9 > > +#define EP5_BUF_SIZE 4096 > +#define EP5_TIMEOUT_MS 2000 > + > struct cx23417_fmt { > u32 fourcc; /* v4l2 format id */ > int depth;
On 2023/9/8 20:26, Andrzej Pietrasiewicz wrote: > Hi, > > W dniu 3.09.2023 o 10:14, Jinjie Ruan pisze: >> Define EP5_BUF_SIZE and EP5_TIMEOUT_MS macros to make the code >> more readable. >> >> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> >> Suggested-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> >> --- >> v2: >> - Adjust the patch to be the second. >> - Adjust the macro name. >> --- >> drivers/media/usb/cx231xx/cx231xx-core.c | 4 ++-- >> drivers/media/usb/cx231xx/cx231xx.h | 3 +++ >> 2 files changed, 5 insertions(+), 2 deletions(-) >> >> diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c >> b/drivers/media/usb/cx231xx/cx231xx-core.c >> index 746727ea1a4c..57a8b4780a7d 100644 >> --- a/drivers/media/usb/cx231xx/cx231xx-core.c >> +++ b/drivers/media/usb/cx231xx/cx231xx-core.c >> @@ -751,12 +751,12 @@ int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 >> *firmware, u16 size) >> int ret = -ENOMEM; >> u32 *buffer; >> - buffer = kmemdup(firmware, 4096, GFP_KERNEL); >> + buffer = kmemdup(firmware, EP5_BUF_SIZE, GFP_KERNEL); >> if (buffer == NULL) >> return -ENOMEM; >> ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5), >> - buffer, 4096, &actlen, 2000); >> + buffer, EP5_BUF_SIZE, &actlen, EP5_TIMEOUT_MS); >> > > $ git grep 4096 drivers/media/usb/cx231xx | sort | wc -l > 6 > > 4096 is a pretty popular constant in this driver. What about the other 4 > places? Thank you! I'll replace them together. > > Andrzej > >> if (ret) >> dev_err(dev->dev, >> diff --git a/drivers/media/usb/cx231xx/cx231xx.h >> b/drivers/media/usb/cx231xx/cx231xx.h >> index 6929e4d97067..74339a6a2f71 100644 >> --- a/drivers/media/usb/cx231xx/cx231xx.h >> +++ b/drivers/media/usb/cx231xx/cx231xx.h >> @@ -120,6 +120,9 @@ >> #define CX23417_OSC_EN 8 >> #define CX23417_RESET 9 >> +#define EP5_BUF_SIZE 4096 >> +#define EP5_TIMEOUT_MS 2000 >> + >> struct cx23417_fmt { >> u32 fourcc; /* v4l2 format id */ >> int depth; >
diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c b/drivers/media/usb/cx231xx/cx231xx-core.c index 746727ea1a4c..57a8b4780a7d 100644 --- a/drivers/media/usb/cx231xx/cx231xx-core.c +++ b/drivers/media/usb/cx231xx/cx231xx-core.c @@ -751,12 +751,12 @@ int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size) int ret = -ENOMEM; u32 *buffer; - buffer = kmemdup(firmware, 4096, GFP_KERNEL); + buffer = kmemdup(firmware, EP5_BUF_SIZE, GFP_KERNEL); if (buffer == NULL) return -ENOMEM; ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 5), - buffer, 4096, &actlen, 2000); + buffer, EP5_BUF_SIZE, &actlen, EP5_TIMEOUT_MS); if (ret) dev_err(dev->dev, diff --git a/drivers/media/usb/cx231xx/cx231xx.h b/drivers/media/usb/cx231xx/cx231xx.h index 6929e4d97067..74339a6a2f71 100644 --- a/drivers/media/usb/cx231xx/cx231xx.h +++ b/drivers/media/usb/cx231xx/cx231xx.h @@ -120,6 +120,9 @@ #define CX23417_OSC_EN 8 #define CX23417_RESET 9 +#define EP5_BUF_SIZE 4096 +#define EP5_TIMEOUT_MS 2000 + struct cx23417_fmt { u32 fourcc; /* v4l2 format id */ int depth;
Define EP5_BUF_SIZE and EP5_TIMEOUT_MS macros to make the code more readable. Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com> Suggested-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> --- v2: - Adjust the patch to be the second. - Adjust the macro name. --- drivers/media/usb/cx231xx/cx231xx-core.c | 4 ++-- drivers/media/usb/cx231xx/cx231xx.h | 3 +++ 2 files changed, 5 insertions(+), 2 deletions(-)