[PATCH 5.4 2/2] drm/amdkfd: Fix -Wstrict-prototypes from amdgpu_amdkfd_gfx_10_0_get_functions()

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This patch is for linux-5.4.y only, it has no equivalent change
upstream.

When building x86_64 allmodconfig with tip of tree clang, there is an
instance of -Wstrict-prototypes:

  drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c:168:59: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
  struct kfd2kgd_calls *amdgpu_amdkfd_gfx_10_0_get_functions()
                                                            ^
                                                             void
  1 error generated.

amdgpu_amdkfd_gfx_10_0_get_functions() is prototyped properly in
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h but its definition in
amdgpu_amdkfd_gfx_v10.c does not have the argument types specified,
which causes the warning. GCC does not warn because it permits an
old-style definition if the prototype has the argument types.

This code was eliminated by commit e392c887df97 ("drm/amdkfd: Use array
to probe kfd2kgd_calls"), which was a part of a larger series that does
not look very suitable for stable. Just fix this one location, as it was
the only instance of this new warning across a variety of builds.

Fixes: 6bdadb207224 ("drm/amdgpu: Add navi10 kfd support for amdgpu (v3)")
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c
index ce30d4e8bf25..f7c4337c1ffe 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c
@@ -165,7 +165,7 @@ static const struct kfd2kgd_calls kfd2kgd = {
 	.get_tile_config = amdgpu_amdkfd_get_tile_config,
 };
 
-struct kfd2kgd_calls *amdgpu_amdkfd_gfx_10_0_get_functions()
+struct kfd2kgd_calls *amdgpu_amdkfd_gfx_10_0_get_functions(void)
 {
 	return (struct kfd2kgd_calls *)&kfd2kgd;
 }
-- 
2.35.1




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