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From:   Liam Howlett <liam.howlett@oracle.com>
To:     "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
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        Peter Zijlstra <peterz@infradead.org>,
        Michel Lespinasse <walken.cr@gmail.com>,
        Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH 08/94] x86/sgx: Use vma_lookup() in sgx_encl_find()
Thread-Topic: [PATCH 08/94] x86/sgx: Use vma_lookup() in sgx_encl_find()
Thread-Index: AQHXPEQoV5l7mDb4p0aYXEbJUwmqHg==
Date:   Wed, 28 Apr 2021 15:35:46 +0000
Message-ID: <20210428153542.2814175-9-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() removes the requirement to check if the address is
within the returned vma.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 arch/x86/kernel/cpu/sgx/encl.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/sgx/encl.h b/arch/x86/kernel/cpu/sgx/encl.=
h
index 6e74f85b6264..fec43ca65065 100644
--- a/arch/x86/kernel/cpu/sgx/encl.h
+++ b/arch/x86/kernel/cpu/sgx/encl.h
@@ -91,8 +91,8 @@ static inline int sgx_encl_find(struct mm_struct *mm, uns=
igned long addr,
 {
 	struct vm_area_struct *result;
=20
-	result =3D find_vma(mm, addr);
-	if (!result || result->vm_ops !=3D &sgx_vm_ops || addr < result->vm_start=
)
+	result =3D vma_lookup(mm, addr);
+	if (!result || result->vm_ops !=3D &sgx_vm_ops)
 		return -EINVAL;
=20
 	*vma =3D result;
--=20
2.30.2