linux-kernel - [PATCH] gpu: drm: use struct

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Date:   Fri, 17 May 2019 16:46:00 +0800
From:   xiaolinkui <xiaolinkui@...inos.cn>
To:     alexander.deucher@....com, christian.koenig@....com,
        David1.Zhou@....com, airlied@...ux.ie, daniel@...ll.ch,
        xinhui.pan@....com, evan.quan@....com
Cc:     amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, xiaolinkui@...inos.cn
Subject: [PATCH] gpu: drm: use struct_size() in kmalloc()

Use struct_size() helper to keep code simple.

Signed-off-by: xiaolinkui <xiaolinkui@...inos.cn>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 22bd21e..4717a64 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1375,8 +1375,7 @@ int amdgpu_ras_init(struct amdgpu_device *adev)
 	if (con)
 		return 0;
 
-	con = kmalloc(sizeof(struct amdgpu_ras) +
-			sizeof(struct ras_manager) * AMDGPU_RAS_BLOCK_COUNT,
+	con = kmalloc(struct_size(con, objs, AMDGPU_RAS_BLOCK_COUNT),
 			GFP_KERNEL|__GFP_ZERO);
 	if (!con)
 		return -ENOMEM;
-- 
2.7.4