Re: [PATCH v4] drm/msm/a6xx: use __unused__ to fix compiler warnings for gen7_* includes

[Dmitry Baryshkov]

On Wed, Jun 05, 2024 at 11:34:15AM -0700, Abhinav Kumar wrote:
> GCC diagnostic pragma method throws below warnings in some of the versions
> 
> drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:16:9: warning: unknown
> option after '#pragma GCC diagnostic' kind [-Wpragmas]
>   #pragma GCC diagnostic ignored "-Wunused-const-variable"
>           ^
> In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:18:0:
> drivers/gpu/drm/msm/adreno/adreno_gen7_0_0_snapshot.h:924:19: warning:
> 'gen7_0_0_external_core_regs' defined but not used [-Wunused-variable]
>   static const u32 *gen7_0_0_external_core_regs[] = {
>                     ^
> In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:19:0:
> drivers/gpu/drm/msm/adreno/adreno_gen7_2_0_snapshot.h:748:19: warning:
> 'gen7_2_0_external_core_regs' defined but not used [-Wunused-variable]
>   static const u32 *gen7_2_0_external_core_regs[] = {
>                     ^
> In file included from drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:20:0:
> drivers/gpu/drm/msm/adreno/adreno_gen7_9_0_snapshot.h:1188:43: warning:
> 'gen7_9_0_sptp_clusters' defined but not used [-Wunused-variable]
>   static struct gen7_sptp_cluster_registers gen7_9_0_sptp_clusters[] = {
>                                             ^
> drivers/gpu/drm/msm/adreno/adreno_gen7_9_0_snapshot.h:1438:19: warning:
> 'gen7_9_0_external_core_regs' defined but not used [-Wunused-variable]
>   static const u32 *gen7_9_0_external_core_regs[] = {
> 
> Remove GCC version dependency by using __unused__ for the unused gen7_* includes.
> 
> Changes in v2:
> 	- Fix the warnings in the commit text
> 	- Use __attribute((__unused__)) instead of local assignment
> 
> changes in v3:
> 	- drop the Link from the auto add
> 
> changes in v4:
> 	- replace __attribute((__unused__)) with __always_unused
> 
> Fixes: 64d6255650d4 ("drm/msm: More fully implement devcoredump for a7xx")
> Suggested-by: Rob Clark <robdclark@xxxxxxxxxxxx>
> Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
> ---
>  drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 12 ++++--------
>  1 file changed, 4 insertions(+), 8 deletions(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>


-- 
With best wishes
Dmitry