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From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
To: "Felix Kuehling" <Felix.Kuehling@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>,
	linux-hardening@vger.kernel.org, dri-devel@lists.freedesktop.org,
	amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH][next] drm/amdgpu: Use struct_size() helper in kmalloc()
Date: Thu, 8 Oct 2020 09:23:05 -0500	[thread overview]
Message-ID: <20201008142305.GA21249@embeddedor> (raw)

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

Signed-off-by: Gustavo A. R. Silva <gustavoars@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

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

WARNING: multiple messages have this Message-ID (diff)
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
To: "Felix Kuehling" <Felix.Kuehling@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavoars@kernel.org>,
	linux-hardening@vger.kernel.org
Subject: [PATCH][next] drm/amdgpu: Use struct_size() helper in kmalloc()
Date: Thu, 8 Oct 2020 09:23:05 -0500	[thread overview]
Message-ID: <20201008142305.GA21249@embeddedor> (raw)

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

Signed-off-by: Gustavo A. R. Silva <gustavoars@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


WARNING: multiple messages have this Message-ID (diff)
From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
To: "Felix Kuehling" <Felix.Kuehling@amd.com>,
	"Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"David Airlie" <airlied@linux.ie>,
	"Daniel Vetter" <daniel@ffwll.ch>
Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>,
	linux-hardening@vger.kernel.org, dri-devel@lists.freedesktop.org,
	amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH][next] drm/amdgpu: Use struct_size() helper in kmalloc()
Date: Thu, 8 Oct 2020 09:23:05 -0500	[thread overview]
Message-ID: <20201008142305.GA21249@embeddedor> (raw)

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

Signed-off-by: Gustavo A. R. Silva <gustavoars@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

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

             reply	other threads:[~2020-10-08 14:17 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-08 14:23 Gustavo A. R. Silva [this message]
2020-10-08 14:23 ` [PATCH][next] drm/amdgpu: Use struct_size() helper in kmalloc() Gustavo A. R. Silva
2020-10-08 14:23 ` Gustavo A. R. Silva
2020-10-08 17:22 ` Alex Deucher
2020-10-08 17:22   ` Alex Deucher
2020-10-08 17:22   ` Alex Deucher
2020-10-09  7:07 ` Christian König
2020-10-09  7:07   ` Christian König
2020-10-09  7:07   ` Christian König

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