Make use of the new struct_size() helper instead of the offsetof() idiom.

Signed-off-by: Gustavo A. R. Silva <gustavo...@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 5da487b64a66..30192dce7775 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -239,8 +239,7 @@ static int amdgpu_amdkfd_remove_eviction_fence(struct 
amdgpu_bo *bo,
        if (!old)
                return 0;
 
-       new = kmalloc(offsetof(typeof(*new), shared[old->shared_max]),
-                     GFP_KERNEL);
+       new = kmalloc(struct_size(new, shared, old->shared_max), GFP_KERNEL);
        if (!new)
                return -ENOMEM;
 
-- 
2.27.0

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