From: Muhammad Falak R Wani <falakreyaz@gmail.com>
To: David Airlie <airlied@linux.ie>
Cc: "Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"Chunming Zhou" <David1.Zhou@amd.com>,
"Jammy Zhou" <Jammy.Zhou@amd.com>, "Leo Liu" <leo.liu@amd.com>,
"Sonny Jiang" <sonny.jiang@amd.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH] amdgpu/uvd: use kmemdup
Date: Thu, 19 May 2016 16:41:45 +0530 [thread overview]
Message-ID: <1463656317-13828-1-git-send-email-falakreyaz@gmail.com> (raw)
Use kmemdup when some other buffer is immediately copied into allocated
region. It replaces call to allocation followed by memcpy, by a single
call to kmemdup.
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index 01abfc2..c977ab6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -295,12 +295,10 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
size = amdgpu_bo_size(adev->uvd.vcpu_bo);
ptr = adev->uvd.cpu_addr;
- adev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
+ adev->uvd.saved_bo = kmemdup(ptr, size, GFP_KERNEL);
if (!adev->uvd.saved_bo)
return -ENOMEM;
- memcpy(adev->uvd.saved_bo, ptr, size);
-
return 0;
}
--
1.9.1
next reply other threads:[~2016-05-19 11:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-19 11:11 Muhammad Falak R Wani [this message]
2016-05-19 11:18 ` [PATCH] amdgpu/uvd: use kmemdup Christian König
2016-05-19 11:49 ` Muhammad Falak R Wani
2016-05-19 12:08 ` Christian König
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