linux-kernel - [PATCH 5/5] amdgpu: use VM_ACCESS

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Message-ID: <20221019034945.93081-6-wangkefeng.wang@huawei.com>
Date:   Wed, 19 Oct 2022 11:49:45 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     Dinh Nguyen <dinguyen@...nel.org>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        <linux-sgx@...r.kernel.org>, <amd-gfx@...ts.freedesktop.org>,
        <linux-mm@...ck.org>, Kefeng Wang <wangkefeng.wang@...wei.com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Subject: [PATCH 5/5] amdgpu: use VM_ACCESS_FLAGS

Simplify VM_READ|VM_WRITE|VM_EXEC with VM_ACCESS_FLAGS.

Cc: Alex Deucher <alexander.deucher@....com>
Cc: "Christian König" <christian.koenig@....com>
Cc: "Pan, Xinhui" <Xinhui.Pan@....com>
Cc: David Airlie <airlied@...il.com>
Cc: Daniel Vetter <daniel@...ll.ch>
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 8ef31d687ef3..4728be161828 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -255,7 +255,7 @@ static int amdgpu_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_str
 	 * becoming writable and makes is_cow_mapping(vm_flags) false.
 	 */
 	if (is_cow_mapping(vma->vm_flags) &&
-	    !(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)))
+	    !(vma->vm_flags & VM_ACCESS_FLAGS))
 		vma->vm_flags &= ~VM_MAYWRITE;
 
 	return drm_gem_ttm_mmap(obj, vma);
-- 
2.35.3