| Message ID | 20200706133341.476881-9-lee.jones@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Fix the final bunch of W=1 issues in USB | expand |
Hi, On 7/6/20 3:33 PM, Lee Jones wrote: > Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config > configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' > last year. No need to keep it around. > > Fixes the following W=1 kernel build warning(s): > > drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] > 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { > | ^~~~~~~~~~~~~~~~ > > Cc: Guenter Roeck <linux@roeck-us.net> > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> > Cc: Hans de Goede <hdegoede@redhat.com> > Signed-off-by: Lee Jones <lee.jones@linaro.org> This is necessary for adding Display port over Type-C support on devices using the tcpm code, rather then firmware, to do the Type-C alt-mode negotiation. I have a local patch in my tree which adds support for this. But Heikki did not like my approach, so that patch (which needs the bits you are removing) never landed upstream: https://patchwork.kernel.org/patch/11199517/ Which is somewhat old now. Heikki said he would look into an approach to this more to his liking. Heikki an progress on this area? Regards, Hans > --- > drivers/usb/typec/tcpm/tcpm.c | 51 ----------------------------------- > 1 file changed, 51 deletions(-) > > diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c > index 82b19ebd7838e..d6913eb0ea54d 100644 > --- a/drivers/usb/typec/tcpm/tcpm.c > +++ b/drivers/usb/typec/tcpm/tcpm.c > @@ -1503,57 +1503,6 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo, > return 0; > } > > -static int tcpm_altmode_enter(struct typec_altmode *altmode, u32 *vdo) > -{ > - struct tcpm_port *port = typec_altmode_get_drvdata(altmode); > - u32 header; > - > - mutex_lock(&port->lock); > - header = VDO(altmode->svid, vdo ? 2 : 1, CMD_ENTER_MODE); > - header |= VDO_OPOS(altmode->mode); > - > - tcpm_queue_vdm(port, header, vdo, vdo ? 1 : 0); > - mod_delayed_work(port->wq, &port->vdm_state_machine, 0); > - mutex_unlock(&port->lock); > - > - return 0; > -} > - > -static int tcpm_altmode_exit(struct typec_altmode *altmode) > -{ > - struct tcpm_port *port = typec_altmode_get_drvdata(altmode); > - u32 header; > - > - mutex_lock(&port->lock); > - header = VDO(altmode->svid, 1, CMD_EXIT_MODE); > - header |= VDO_OPOS(altmode->mode); > - > - tcpm_queue_vdm(port, header, NULL, 0); > - mod_delayed_work(port->wq, &port->vdm_state_machine, 0); > - mutex_unlock(&port->lock); > - > - return 0; > -} > - > -static int tcpm_altmode_vdm(struct typec_altmode *altmode, > - u32 header, const u32 *data, int count) > -{ > - struct tcpm_port *port = typec_altmode_get_drvdata(altmode); > - > - mutex_lock(&port->lock); > - tcpm_queue_vdm(port, header, data, count - 1); > - mod_delayed_work(port->wq, &port->vdm_state_machine, 0); > - mutex_unlock(&port->lock); > - > - return 0; > -} > - > -static const struct typec_altmode_ops tcpm_altmode_ops = { > - .enter = tcpm_altmode_enter, > - .exit = tcpm_altmode_exit, > - .vdm = tcpm_altmode_vdm, > -}; > - > /* > * PD (data, control) command handling functions > */ >
On Mon, 06 Jul 2020, Hans de Goede wrote: > Hi, > > On 7/6/20 3:33 PM, Lee Jones wrote: > > Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config > > configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' > > last year. No need to keep it around. > > > > Fixes the following W=1 kernel build warning(s): > > > > drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] > > 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { > > | ^~~~~~~~~~~~~~~~ > > > > Cc: Guenter Roeck <linux@roeck-us.net> > > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> > > Cc: Hans de Goede <hdegoede@redhat.com> > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > This is necessary for adding Display port over Type-C support > on devices using the tcpm code, rather then firmware, to do > the Type-C alt-mode negotiation. > > I have a local patch in my tree which adds support for this. > > But Heikki did not like my approach, so that patch > (which needs the bits you are removing) never landed > upstream: > > https://patchwork.kernel.org/patch/11199517/ > > Which is somewhat old now. Yes, that's a just a little old now. If it drags on for much longer, perhaps consider taking it out for the time being and adding it back when you start to make use of it again? > Heikki said he would look into an approach to this more to > his liking. Heikki an progress on this area?
Hi, On 7/6/20 4:20 PM, Lee Jones wrote: > On Mon, 06 Jul 2020, Hans de Goede wrote: > >> Hi, >> >> On 7/6/20 3:33 PM, Lee Jones wrote: >>> Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config >>> configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' >>> last year. No need to keep it around. >>> >>> Fixes the following W=1 kernel build warning(s): >>> >>> drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] >>> 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { >>> | ^~~~~~~~~~~~~~~~ >>> >>> Cc: Guenter Roeck <linux@roeck-us.net> >>> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> >>> Cc: Hans de Goede <hdegoede@redhat.com> >>> Signed-off-by: Lee Jones <lee.jones@linaro.org> >> >> This is necessary for adding Display port over Type-C support >> on devices using the tcpm code, rather then firmware, to do >> the Type-C alt-mode negotiation. >> >> I have a local patch in my tree which adds support for this. >> >> But Heikki did not like my approach, so that patch >> (which needs the bits you are removing) never landed >> upstream: >> >> https://patchwork.kernel.org/patch/11199517/ >> >> Which is somewhat old now. > > Yes, that's a just a little old now. > > If it drags on for much longer, perhaps consider taking it out for the > time being and adding it back when you start to make use of it again? > >> Heikki said he would look into an approach to this more to >> his liking. Heikki an progress on this area? Just a little headsup that I'm making some time now to take a look at solving this in the previously discussed better way, with the hope of that we can get that upstream. So hopefully I will have some patches for this ready during the upcoming weekend. Regards, Hans
On Thu, 09 Jul 2020, Hans de Goede wrote: > Hi, > > On 7/6/20 4:20 PM, Lee Jones wrote: > > On Mon, 06 Jul 2020, Hans de Goede wrote: > > > > > Hi, > > > > > > On 7/6/20 3:33 PM, Lee Jones wrote: > > > > Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config > > > > configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' > > > > last year. No need to keep it around. > > > > > > > > Fixes the following W=1 kernel build warning(s): > > > > > > > > drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] > > > > 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { > > > > | ^~~~~~~~~~~~~~~~ > > > > > > > > Cc: Guenter Roeck <linux@roeck-us.net> > > > > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> > > > > Cc: Hans de Goede <hdegoede@redhat.com> > > > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > > > > > This is necessary for adding Display port over Type-C support > > > on devices using the tcpm code, rather then firmware, to do > > > the Type-C alt-mode negotiation. > > > > > > I have a local patch in my tree which adds support for this. > > > > > > But Heikki did not like my approach, so that patch > > > (which needs the bits you are removing) never landed > > > upstream: > > > > > > https://patchwork.kernel.org/patch/11199517/ > > > > > > Which is somewhat old now. > > > > Yes, that's a just a little old now. > > > > If it drags on for much longer, perhaps consider taking it out for the > > time being and adding it back when you start to make use of it again? > > > > > Heikki said he would look into an approach to this more to > > > his liking. Heikki an progress on this area? > > Just a little headsup that I'm making some time now to take a look > at solving this in the previously discussed better way, with the hope > of that we can get that upstream. So hopefully I will have some > patches for this ready during the upcoming weekend. Sounds good. Thanks for the update.
Hi, On 7/6/20 4:20 PM, Lee Jones wrote: > On Mon, 06 Jul 2020, Hans de Goede wrote: > >> Hi, >> >> On 7/6/20 3:33 PM, Lee Jones wrote: >>> Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config >>> configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' >>> last year. No need to keep it around. >>> >>> Fixes the following W=1 kernel build warning(s): >>> >>> drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] >>> 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { >>> | ^~~~~~~~~~~~~~~~ >>> >>> Cc: Guenter Roeck <linux@roeck-us.net> >>> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> >>> Cc: Hans de Goede <hdegoede@redhat.com> >>> Signed-off-by: Lee Jones <lee.jones@linaro.org> >> >> This is necessary for adding Display port over Type-C support >> on devices using the tcpm code, rather then firmware, to do >> the Type-C alt-mode negotiation. >> >> I have a local patch in my tree which adds support for this. >> >> But Heikki did not like my approach, so that patch >> (which needs the bits you are removing) never landed >> upstream: >> >> https://patchwork.kernel.org/patch/11199517/ >> >> Which is somewhat old now. > > Yes, that's a just a little old now. > > If it drags on for much longer, perhaps consider taking it out for the > time being and adding it back when you start to make use of it again? Ok, I've just submitted a reworked patch-series upstream which actually uses this code. So please drop this patch from your patch-set. Regards, Hans s
On Tue, 14 Jul 2020, Hans de Goede wrote: > Hi, > > On 7/6/20 4:20 PM, Lee Jones wrote: > > On Mon, 06 Jul 2020, Hans de Goede wrote: > > > > > Hi, > > > > > > On 7/6/20 3:33 PM, Lee Jones wrote: > > > > Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config > > > > configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' > > > > last year. No need to keep it around. > > > > > > > > Fixes the following W=1 kernel build warning(s): > > > > > > > > drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] > > > > 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { > > > > | ^~~~~~~~~~~~~~~~ > > > > > > > > Cc: Guenter Roeck <linux@roeck-us.net> > > > > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> > > > > Cc: Hans de Goede <hdegoede@redhat.com> > > > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > > > > > This is necessary for adding Display port over Type-C support > > > on devices using the tcpm code, rather then firmware, to do > > > the Type-C alt-mode negotiation. > > > > > > I have a local patch in my tree which adds support for this. > > > > > > But Heikki did not like my approach, so that patch > > > (which needs the bits you are removing) never landed > > > upstream: > > > > > > https://patchwork.kernel.org/patch/11199517/ > > > > > > Which is somewhat old now. > > > > Yes, that's a just a little old now. > > > > If it drags on for much longer, perhaps consider taking it out for the > > time being and adding it back when you start to make use of it again? > > Ok, I've just submitted a reworked patch-series upstream which > actually uses this code. So please drop this patch from your > patch-set. No problem. Thanks Hans.
Hi Hans, Kernel test robot is still reporting this issue. I have my repo synced to ToT usb-next: Output of git repo: 5fedf0d295d3 (origin/usb-testing, origin/usb-next) Merge 5.9-rc3 into usb-next f75aef392f86 (tag: v5.9-rc3, origin/usb-linus, origin/main) Linux 5.9-rc3 e43327c706f2 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 dcc5c6f013d8 Merge tag 'x86-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip d2283cdc18d3 Merge tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 0063a82de937 Merge tag 'sched-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Were you able to get your patch merged ? Thanks, Badhri On Tue, Jul 14, 2020 at 6:55 AM Lee Jones <lee.jones@linaro.org> wrote: > > On Tue, 14 Jul 2020, Hans de Goede wrote: > > > Hi, > > > > On 7/6/20 4:20 PM, Lee Jones wrote: > > > On Mon, 06 Jul 2020, Hans de Goede wrote: > > > > > > > Hi, > > > > > > > > On 7/6/20 3:33 PM, Lee Jones wrote: > > > > > Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config > > > > > configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' > > > > > last year. No need to keep it around. > > > > > > > > > > Fixes the following W=1 kernel build warning(s): > > > > > > > > > > drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] > > > > > 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { > > > > > | ^~~~~~~~~~~~~~~~ > > > > > > > > > > Cc: Guenter Roeck <linux@roeck-us.net> > > > > > Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> > > > > > Cc: Hans de Goede <hdegoede@redhat.com> > > > > > Signed-off-by: Lee Jones <lee.jones@linaro.org> > > > > > > > > This is necessary for adding Display port over Type-C support > > > > on devices using the tcpm code, rather then firmware, to do > > > > the Type-C alt-mode negotiation. > > > > > > > > I have a local patch in my tree which adds support for this. > > > > > > > > But Heikki did not like my approach, so that patch > > > > (which needs the bits you are removing) never landed > > > > upstream: > > > > > > > > https://patchwork.kernel.org/patch/11199517/ > > > > > > > > Which is somewhat old now. > > > > > > Yes, that's a just a little old now. > > > > > > If it drags on for much longer, perhaps consider taking it out for the > > > time being and adding it back when you start to make use of it again? > > > > Ok, I've just submitted a reworked patch-series upstream which > > actually uses this code. So please drop this patch from your > > patch-set. > > No problem. > > Thanks Hans. > > -- > Lee Jones [李琼斯] > Senior Technical Lead - Developer Services > Linaro.org │ Open source software for Arm SoCs > Follow Linaro: Facebook | Twitter | Blog
Hi, On 9/1/20 4:32 AM, Badhri Jagan Sridharan wrote: > Hi Hans, > > Kernel test robot is still reporting this issue. I have my repo synced > to ToT usb-next: > Output of git repo: > 5fedf0d295d3 (origin/usb-testing, origin/usb-next) Merge 5.9-rc3 into usb-next > f75aef392f86 (tag: v5.9-rc3, origin/usb-linus, origin/main) Linux 5.9-rc3 > e43327c706f2 Merge branch 'linus' of > git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 > dcc5c6f013d8 Merge tag 'x86-urgent-2020-08-30' of > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > d2283cdc18d3 Merge tag 'irq-urgent-2020-08-30' of > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > 0063a82de937 Merge tag 'sched-urgent-2020-08-30' of > git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip > > Were you able to get your patch merged ? The patch is in the review process. It looks like it needs one more revision and then it should be on its way. Regards, Hans > > Thanks, > Badhri > > > On Tue, Jul 14, 2020 at 6:55 AM Lee Jones <lee.jones@linaro.org> wrote: >> >> On Tue, 14 Jul 2020, Hans de Goede wrote: >> >>> Hi, >>> >>> On 7/6/20 4:20 PM, Lee Jones wrote: >>>> On Mon, 06 Jul 2020, Hans de Goede wrote: >>>> >>>>> Hi, >>>>> >>>>> On 7/6/20 3:33 PM, Lee Jones wrote: >>>>>> Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config >>>>>> configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' >>>>>> last year. No need to keep it around. >>>>>> >>>>>> Fixes the following W=1 kernel build warning(s): >>>>>> >>>>>> drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] >>>>>> 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { >>>>>> | ^~~~~~~~~~~~~~~~ >>>>>> >>>>>> Cc: Guenter Roeck <linux@roeck-us.net> >>>>>> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> >>>>>> Cc: Hans de Goede <hdegoede@redhat.com> >>>>>> Signed-off-by: Lee Jones <lee.jones@linaro.org> >>>>> >>>>> This is necessary for adding Display port over Type-C support >>>>> on devices using the tcpm code, rather then firmware, to do >>>>> the Type-C alt-mode negotiation. >>>>> >>>>> I have a local patch in my tree which adds support for this. >>>>> >>>>> But Heikki did not like my approach, so that patch >>>>> (which needs the bits you are removing) never landed >>>>> upstream: >>>>> >>>>> https://patchwork.kernel.org/patch/11199517/ >>>>> >>>>> Which is somewhat old now. >>>> >>>> Yes, that's a just a little old now. >>>> >>>> If it drags on for much longer, perhaps consider taking it out for the >>>> time being and adding it back when you start to make use of it again? >>> >>> Ok, I've just submitted a reworked patch-series upstream which >>> actually uses this code. So please drop this patch from your >>> patch-set. >> >> No problem. >> >> Thanks Hans. >> >> -- >> Lee Jones [李琼斯] >> Senior Technical Lead - Developer Services >> Linaro.org │ Open source software for Arm SoCs >> Follow Linaro: Facebook | Twitter | Blog >
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 82b19ebd7838e..d6913eb0ea54d 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -1503,57 +1503,6 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo, return 0; } -static int tcpm_altmode_enter(struct typec_altmode *altmode, u32 *vdo) -{ - struct tcpm_port *port = typec_altmode_get_drvdata(altmode); - u32 header; - - mutex_lock(&port->lock); - header = VDO(altmode->svid, vdo ? 2 : 1, CMD_ENTER_MODE); - header |= VDO_OPOS(altmode->mode); - - tcpm_queue_vdm(port, header, vdo, vdo ? 1 : 0); - mod_delayed_work(port->wq, &port->vdm_state_machine, 0); - mutex_unlock(&port->lock); - - return 0; -} - -static int tcpm_altmode_exit(struct typec_altmode *altmode) -{ - struct tcpm_port *port = typec_altmode_get_drvdata(altmode); - u32 header; - - mutex_lock(&port->lock); - header = VDO(altmode->svid, 1, CMD_EXIT_MODE); - header |= VDO_OPOS(altmode->mode); - - tcpm_queue_vdm(port, header, NULL, 0); - mod_delayed_work(port->wq, &port->vdm_state_machine, 0); - mutex_unlock(&port->lock); - - return 0; -} - -static int tcpm_altmode_vdm(struct typec_altmode *altmode, - u32 header, const u32 *data, int count) -{ - struct tcpm_port *port = typec_altmode_get_drvdata(altmode); - - mutex_lock(&port->lock); - tcpm_queue_vdm(port, header, data, count - 1); - mod_delayed_work(port->wq, &port->vdm_state_machine, 0); - mutex_unlock(&port->lock); - - return 0; -} - -static const struct typec_altmode_ops tcpm_altmode_ops = { - .enter = tcpm_altmode_enter, - .exit = tcpm_altmode_exit, - .vdm = tcpm_altmode_vdm, -}; - /* * PD (data, control) command handling functions */
Looks as though a079973f462a3 ("usb: typec: tcpm: Remove tcpc_config configuration mechanism") pulled out the only use of 'tcpm_altmode_ops' last year. No need to keep it around. Fixes the following W=1 kernel build warning(s): drivers/usb/typec/tcpm/tcpm.c:1551:39: warning: ‘tcpm_altmode_ops’ defined but not used [-Wunused-const-variable=] 1551 | static const struct typec_altmode_ops tcpm_altmode_ops = { | ^~~~~~~~~~~~~~~~ Cc: Guenter Roeck <linux@roeck-us.net> Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/usb/typec/tcpm/tcpm.c | 51 ----------------------------------- 1 file changed, 51 deletions(-)