| Message ID | 20211028163548.273736-1-bjorn.andersson@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/bridge: sn65dsi86: ti_sn65dsi86_read_u16() __maybe_unused | expand |
Hey Bjorn, Thanks for fixing this quickly. On Thu, 28 Oct 2021 at 18:33, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > > When built without CONFIG_PWM there are no references to > ti_sn65dsi86_read_u16(), avoid the W=1 build warning by marking the > function as __maybe_unused. > > __maybe_unused is used insted of a #ifdef guard as it looks slighly > cleaner and it avoids issues if in the future other permutations of the > config options would use the function. > > Reported-by: kernel test robot <lkp@intel.com> > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > --- > > Robert, I believe you pushed out the driver patch introducing this issue > yesterday. Can you please add the relevant Fixes? Added fixes & r-b tags. Fixes: cea86c5bb442 ("drm/bridge: ti-sn65dsi86: Implement the pwm_chip") Reviewed-by: Robert Foss <robert.foss@linaro.org> Applied to drm-misc-next > > drivers/gpu/drm/bridge/ti-sn65dsi86.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c > index 430067a3071c..e1f43b73155b 100644 > --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c > +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c > @@ -215,8 +215,8 @@ static const struct regmap_config ti_sn65dsi86_regmap_config = { > .cache_type = REGCACHE_NONE, > }; > > -static int ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata, > - unsigned int reg, u16 *val) > +static int __maybe_unused ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata, > + unsigned int reg, u16 *val) > { > u8 buf[2]; > int ret; > -- > 2.33.1 >
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index 430067a3071c..e1f43b73155b 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -215,8 +215,8 @@ static const struct regmap_config ti_sn65dsi86_regmap_config = { .cache_type = REGCACHE_NONE, }; -static int ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata, - unsigned int reg, u16 *val) +static int __maybe_unused ti_sn65dsi86_read_u16(struct ti_sn65dsi86 *pdata, + unsigned int reg, u16 *val) { u8 buf[2]; int ret;
When built without CONFIG_PWM there are no references to ti_sn65dsi86_read_u16(), avoid the W=1 build warning by marking the function as __maybe_unused. __maybe_unused is used insted of a #ifdef guard as it looks slighly cleaner and it avoids issues if in the future other permutations of the config options would use the function. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> --- Robert, I believe you pushed out the driver patch introducing this issue yesterday. Can you please add the relevant Fixes? drivers/gpu/drm/bridge/ti-sn65dsi86.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)