this set adds support for removal of gpu drm dead code. patch2: `num_entries` is a data of unsigned type(compilers always treat as unsigned int) and SIZE_MAX == ~0, so there is a impossible condition: '(num_entries > ((~0) - 56) / 72) => (max(0-u32) > 256204778801521549)'. Signed-off-by: Pan Zhang <zhangpan26@xxxxxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c index 85b0515..10a7f30 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c @@ -71,10 +71,6 @@ int amdgpu_bo_list_create(struct amdgpu_device *adev, struct drm_file *filp, unsigned i; int r; - if (num_entries > (SIZE_MAX - sizeof(struct amdgpu_bo_list)) - / sizeof(struct amdgpu_bo_list_entry)) - return -EINVAL; - size = sizeof(struct amdgpu_bo_list); size += num_entries * sizeof(struct amdgpu_bo_list_entry); list = kvmalloc(size, GFP_KERNEL); -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
