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amdgpu: Adjust kmalloc_array calls for new -Walloc-size

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GCC 14 introduces a new -Walloc-size included in -Wextra which errors out
on various files in drivers/gpu/drm/amd/amdgpu like:
```
amdgpu_amdkfd_gfx_v8.c:241:15: error: allocation of insufficient size ‘4’ for type ‘uint32_t[2]’ {aka ‘unsigned int[2]'} with size ‘8’ [-Werror=alloc-size]
```

This is because each HQD_N_REGS is actually a uint32_t[2]. Move the * 2 to
the size argument so GCC sees we're allocating enough.

Originally did 'sizeof(uint32_t) * 2' for the size but a friend suggested
'sizeof(**dump)' better communicates the intent.

Link: https://lore.kernel.org/all/87wmuwo7i3.fsf@gentoo.org/
Signed-off-by: Sam James <sam@gentoo.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sam James
2023-11-05 16:06:50 +00:00
committed by Alex Deucher
parent fbbcb3f2b7
commit b5a52d2afe
5 changed files with 8 additions and 8 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
View File

@@ -238,7 +238,7 @@ static int kgd_hqd_dump(struct amdgpu_device *adev,
(*dump)[i++][1] = RREG32(addr); \
} while (0)
*dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
*dump = kmalloc_array(HQD_N_REGS, sizeof(**dump), GFP_KERNEL);
if (*dump == NULL)
return -ENOMEM;
@@ -324,7 +324,7 @@ static int kgd_hqd_sdma_dump(struct amdgpu_device *adev,
#undef HQD_N_REGS
#define HQD_N_REGS (19+4+2+3+7)
*dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
*dump = kmalloc_array(HQD_N_REGS, sizeof(**dump), GFP_KERNEL);
if (*dump == NULL)
return -ENOMEM;