From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 2/3] powerpc/uaccess: Merge __put_user_size_allowed() into __put_user_size()
Date: Tue, 9 Feb 2021 14:02:13 +0000 (UTC) [thread overview]
Message-ID: <b3baeaec1ee2fbdc653bb6fb27b0be5b846163ef.1612879284.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <99d4ccb58a20d8408d0e19874393655ad5b40822.1612879284.git.christophe.leroy@csgroup.eu>
__put_user_size_allowed() is only called from __put_user_size() now.
Merge them together.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/include/asm/uaccess.h | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index a4d2569173ac..2fb1d95f10d3 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -108,22 +108,18 @@ static inline bool __access_ok(unsigned long addr, unsigned long size)
extern long __put_user_bad(void);
-#define __put_user_size_allowed(x, ptr, size, retval) \
+#define __put_user_size(x, ptr, size, retval) \
do { \
__label__ __pu_failed; \
\
retval = 0; \
+ allow_write_to_user(ptr, size); \
__put_user_size_goto(x, ptr, size, __pu_failed); \
+ prevent_write_to_user(ptr, size); \
break; \
\
__pu_failed: \
retval = -EFAULT; \
-} while (0)
-
-#define __put_user_size(x, ptr, size, retval) \
-do { \
- allow_write_to_user(ptr, size); \
- __put_user_size_allowed(x, ptr, size, retval); \
prevent_write_to_user(ptr, size); \
} while (0)
--
2.25.0
next prev parent reply other threads:[~2021-02-09 14:05 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 14:02 [PATCH v2 1/3] powerpc/uaccess: get rid of small constant size cases in raw_copy_{to,from}_user() Christophe Leroy
2021-02-09 14:02 ` Christophe Leroy [this message]
2021-02-09 14:02 ` [PATCH v2 3/3] powerpc/uaccess: Merge raw_copy_to_user_allowed() into raw_copy_to_user() Christophe Leroy
2021-02-12 0:19 ` [PATCH v2 1/3] powerpc/uaccess: get rid of small constant size cases in raw_copy_{to,from}_user() Michael Ellerman
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