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    Subject[PATCH 18/19] gpu: drm: amd: amdgpu: amdgpu: Mark global variables as __maybe_unused
    Date
    These 3 variables are used in *some* sourcefiles which include
    amdgpu.h, but not *all*. This leads to a flurry of build warnings.

    Fixes the following W=1 kernel build warning(s):

    from drivers/gpu/drm/amd/amdgpu/amdgpu.h:67,
    drivers/gpu/drm/amd/amdgpu/amdgpu.h:198:19: warning: ‘no_system_mem_limit’ defined but not used [-Wunused-const-variable=]
    drivers/gpu/drm/amd/amdgpu/amdgpu.h:197:19: warning: ‘debug_evictions’ defined but not used [-Wunused-const-variable=]
    drivers/gpu/drm/amd/amdgpu/amdgpu.h:196:18: warning: ‘sched_policy’ defined but not used [-Wunused-const-variable=]

    NB: Repeats ~650 times - snipped for brevity.

    Cc: Alex Deucher <alexander.deucher@amd.com>
    Cc: "Christian König" <christian.koenig@amd.com>
    Cc: David Airlie <airlied@linux.ie>
    Cc: Daniel Vetter <daniel@ffwll.ch>
    Cc: Sumit Semwal <sumit.semwal@linaro.org>
    Cc: amd-gfx@lists.freedesktop.org
    Cc: dri-devel@lists.freedesktop.org
    Cc: linux-media@vger.kernel.org
    Cc: linaro-mm-sig@lists.linaro.org
    Signed-off-by: Lee Jones <lee.jones@linaro.org>
    ---
    drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 +++---
    1 file changed, 3 insertions(+), 3 deletions(-)

    diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
    index 183b09d71b64a..5939753080056 100644
    --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
    +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
    @@ -193,9 +193,9 @@ extern int sched_policy;
    extern bool debug_evictions;
    extern bool no_system_mem_limit;
    #else
    -static const int sched_policy = KFD_SCHED_POLICY_HWS;
    -static const bool debug_evictions; /* = false */
    -static const bool no_system_mem_limit;
    +static const int __maybe_unused sched_policy = KFD_SCHED_POLICY_HWS;
    +static const bool __maybe_unused debug_evictions; /* = false */
    +static const bool __maybe_unused no_system_mem_limit;
    #endif

    extern int amdgpu_tmz;
    --
    2.25.1
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