From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] x86: ia32_signal: use __put_user() instead of __copy_to_user()
Date: Tue, 16 Dec 2008 14:03:36 -0800 [thread overview]
Message-ID: <494825B8.5090006@ct.jp.nec.com> (raw)
In-Reply-To: <49482568.3020108@ct.jp.nec.com>
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Impact: cleanup
__put_user() can be used for constant size 8, like arch/x86/kernel/signal.c.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
arch/x86/ia32/ia32_signal.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 9ddf2fa..8738cc5 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -467,7 +467,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
* These are actually not used anymore, but left because some
* gdb versions depend on them as a marker.
*/
- err |= __copy_to_user(frame->retcode, &code, 8);
+ err |= __put_user(*((u64 *)&code), (u64 *)frame->retcode);
if (err)
return -EFAULT;
@@ -554,7 +554,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
* Not actually used anymore, but left because some gdb
* versions need it.
*/
- err |= __copy_to_user(frame->retcode, &code, 8);
+ err |= __put_user(*((u64 *)&code), (u64 *)frame->retcode);
if (err)
return -EFAULT;
--
1.6.0.4
next prev parent reply other threads:[~2008-12-16 22:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-16 22:02 [PATCH 1/3] x86: signal: use signal_fault() in sys_sigreturn() Hiroshi Shimamoto
2008-12-16 22:03 ` Hiroshi Shimamoto [this message]
2008-12-16 22:04 ` [PATCH 3/3] x86: ia32_signal: use proper macro __USER32_DS Hiroshi Shimamoto
2008-12-16 22:06 ` [PATCH 1/3] x86: signal: use signal_fault() in sys_sigreturn() Ingo Molnar
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