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