From: "Amanieu d'Antras" <amanieu@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Oleg Nesterov <oleg@redhat.com>,
"Amanieu d'Antras" <amanieu@gmail.com>,
Roland McGrath <roland@hack.frob.com>
Subject: [PATCH v2 20/20] signal: Remove unnecessary zero-initialization of siginfo_t
Date: Thu, 5 Nov 2015 00:50:39 +0000 [thread overview]
Message-ID: <1446684640-4112-21-git-send-email-amanieu@gmail.com> (raw)
In-Reply-To: <1446684640-4112-1-git-send-email-amanieu@gmail.com>
This is no longer required since copy_siginfo_from_user32 now
initializes all siginfo_t fields properly.
Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
---
kernel/ptrace.c | 1 -
kernel/signal.c | 4 ++--
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 787320d..3aa383b 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -1147,7 +1147,6 @@ int compat_ptrace_request(struct task_struct *child, compat_long_t request,
break;
case PTRACE_SETSIGINFO:
- memset(&siginfo, 0, sizeof siginfo);
if (copy_siginfo_from_user32(
&siginfo, (struct compat_siginfo __user *) datap))
ret = -EFAULT;
diff --git a/kernel/signal.c b/kernel/signal.c
index 873e8e2..ce992f2 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3022,7 +3022,7 @@ COMPAT_SYSCALL_DEFINE3(rt_sigqueueinfo,
int, sig,
struct compat_siginfo __user *, uinfo)
{
- siginfo_t info = {};
+ siginfo_t info;
int ret = copy_siginfo_from_user32(&info, uinfo);
if (unlikely(ret))
return ret;
@@ -3066,7 +3066,7 @@ COMPAT_SYSCALL_DEFINE4(rt_tgsigqueueinfo,
int, sig,
struct compat_siginfo __user *, uinfo)
{
- siginfo_t info = {};
+ siginfo_t info;
if (copy_siginfo_from_user32(&info, uinfo))
return -EFAULT;
--
2.6.2
next prev parent reply other threads:[~2015-11-05 0:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-05 0:50 [PATCH v2 00/20] Fix handling of compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 01/20] compat: Add generic compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 02/20] compat: Add generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 03/20] x86: Update compat_siginfo_t to be closer to the generic version Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 04/20] x86: Rewrite copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 2:29 ` H. Peter Anvin
2015-11-05 0:50 ` [PATCH v2 05/20] mips: Clean up compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 06/20] mips: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 07/20] arm64: Use generic compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 08/20] arm64: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 09/20] parisc: Use generic compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 10/20] parsic: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 11/20] s390: Use generic compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 12/20] s390: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 13/20] powerpc: Use generic compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 14/20] powerpc: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 15/20] tile: Use generic compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 16/20] tile: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 17/20] sparc: Use generic compat_siginfo_t Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 18/20] sparc: Use generic copy_siginfo_{to,from}_user32 Amanieu d'Antras
2015-11-05 0:50 ` [PATCH v2 19/20] signalfd: Fix some issues in signalfd_copyinfo Amanieu d'Antras
2015-11-05 0:50 ` Amanieu d'Antras [this message]
2015-11-08 5:09 ` [PATCH v2 00/20] Fix handling of compat_siginfo_t Andy Lutomirski
2015-11-09 15:12 ` Oleg Nesterov
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