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Message-Id: <20200323185127.252501-2-viro@ZenIV.linux.org.uk>
Date: Mon, 23 Mar 2020 18:51:22 +0000
From: Al Viro <viro@...IV.linux.org.uk>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: [RFC][PATCH 2/7] sh: no need of access_ok() in arch_futex_atomic_op_inuser()
From: Al Viro <viro@...iv.linux.org.uk>
everything it uses is doing access_ok() already
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
arch/sh/include/asm/futex.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index 324fa680b13d..b39cda09fb95 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -34,9 +34,6 @@ static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval,
u32 oldval, newval, prev;
int ret;
- if (!access_ok(uaddr, sizeof(u32)))
- return -EFAULT;
-
do {
ret = get_user(oldval, uaddr);
--
2.11.0
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