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From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>,
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CC:     Song Liu <songliubraving@fb.com>,
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        Rik van Riel <riel@surriel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Michel Lespinasse <walken.cr@gmail.com>,
        Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH 12/94] drm/amdgpu: Use vma_lookup() in
 amdgpu_ttm_tt_get_user_pages()
Thread-Topic: [PATCH 12/94] drm/amdgpu: Use vma_lookup() in
 amdgpu_ttm_tt_get_user_pages()
Thread-Index: AQHXPEQp9y42mznYlkCmra8nI/96JQ==
Date:   Wed, 28 Apr 2021 15:35:48 +0000
Message-ID: <20210428153542.2814175-13-Liam.Howlett@Oracle.com>
References: <20210428153542.2814175-1-Liam.Howlett@Oracle.com>
In-Reply-To: <20210428153542.2814175-1-Liam.Howlett@Oracle.com>
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Using vma_lookup() allows for cleaner code as the vma start address
validation is not needed, as apposed to find_vma().

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/=
amdgpu/amdgpu_ttm.c
index 3bef0432cac2..bd8df9bc9e38 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -709,8 +709,8 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, =
struct page **pages)
 	}
=20
 	mmap_read_lock(mm);
-	vma =3D find_vma(mm, start);
-	if (unlikely(!vma || start < vma->vm_start)) {
+	vma =3D vma_lookup(mm, start);
+	if (unlikely(!vma)) {
 		r =3D -EFAULT;
 		goto out_unlock;
 	}
--=20
2.30.2