From: Namhyung Kim <namhyung@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Roland McGrath <roland@redhat.com>,
Oleg Nesterov <oleg@redhat.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH RESEND v3 02/24] ptrace: cleanup ptrace_request()
Date: Thu, 30 Sep 2010 18:27:37 +0900 [thread overview]
Message-ID: <1285838880-4977-3-git-send-email-namhyung@gmail.com> (raw)
In-Reply-To: <1285838880-4977-1-git-send-email-namhyung@gmail.com>
Use new 'datavp' and 'datalp' variables to remove unnecesary castings.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Roland McGrath <roland@redhat.com>
---
kernel/ptrace.c | 14 +++++++-------
1 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index f838afe..dded1d6 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -563,6 +563,8 @@ int ptrace_request(struct task_struct *child, long request,
{
int ret = -EIO;
siginfo_t siginfo;
+ void __user *datavp = (void __user *) data;
+ unsigned long __user *datalp = datavp;
switch (request) {
case PTRACE_PEEKTEXT:
@@ -579,19 +581,17 @@ int ptrace_request(struct task_struct *child, long request,
ret = ptrace_setoptions(child, data);
break;
case PTRACE_GETEVENTMSG:
- ret = put_user(child->ptrace_message, (unsigned long __user *) data);
+ ret = put_user(child->ptrace_message, datalp);
break;
case PTRACE_GETSIGINFO:
ret = ptrace_getsiginfo(child, &siginfo);
if (!ret)
- ret = copy_siginfo_to_user((siginfo_t __user *) data,
- &siginfo);
+ ret = copy_siginfo_to_user(datavp, &siginfo);
break;
case PTRACE_SETSIGINFO:
- if (copy_from_user(&siginfo, (siginfo_t __user *) data,
- sizeof siginfo))
+ if (copy_from_user(&siginfo, datavp, sizeof siginfo))
ret = -EFAULT;
else
ret = ptrace_setsiginfo(child, &siginfo);
@@ -622,7 +622,7 @@ int ptrace_request(struct task_struct *child, long request,
}
mmput(mm);
- ret = put_user(tmp, (unsigned long __user *) data);
+ ret = put_user(tmp, datalp);
break;
}
#endif
@@ -651,7 +651,7 @@ int ptrace_request(struct task_struct *child, long request,
case PTRACE_SETREGSET:
{
struct iovec kiov;
- struct iovec __user *uiov = (struct iovec __user *) data;
+ struct iovec __user *uiov = datavp;
if (!access_ok(VERIFY_WRITE, uiov, sizeof(*uiov)))
return -EFAULT;
--
1.7.2.2
next prev parent reply other threads:[~2010-09-30 9:28 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-30 9:27 [PATCH RESEND v3 00/24] ptrace cleanups Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 01/24] ptrace: change signature of sys_ptrace() and friends Namhyung Kim
2010-09-30 9:27 ` Namhyung Kim [this message]
2010-09-30 9:27 ` [PATCH RESEND v3 03/24] ptrace: change signature of arch_ptrace() Namhyung Kim
2010-09-30 18:58 ` David Miller
2010-10-04 19:21 ` Geert Uytterhoeven
2010-09-30 9:27 ` [PATCH RESEND v3 04/24] ptrace: cleanup arch_ptrace() on x86 Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 05/24] ptrace: cleanup arch_ptrace() on ARM Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 06/24] ptrace: cleanup arch_ptrace() on avr32 Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 07/24] ptrace: cleanup arch_ptrace() and friends on Blackfin Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 08/24] ptrace: cleanup arch_ptrace() on cris Namhyung Kim
2010-09-30 10:36 ` Mikael Starvik
2010-09-30 9:27 ` [PATCH RESEND v3 09/24] ptrace: cleanup arch_ptrace() on frv Namhyung Kim
2010-10-02 3:18 ` Daniel K.
2010-10-02 3:57 ` Namhyung Kim
2010-10-02 4:59 ` Namhyung Kim
2010-10-02 6:13 ` Daniel K.
2010-09-30 9:27 ` [PATCH RESEND v3 10/24] ptrace: cleanup arch_ptrace() on h8300 Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 11/24] ptrace: cleanup arch_ptrace() on m32r Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 12/24] ptrace: cleanup arch_ptrace() on m68k Namhyung Kim
2010-10-04 19:22 ` Geert Uytterhoeven
2010-09-30 9:27 ` [PATCH RESEND v3 13/24] ptrace: cleanup arch_ptrace() on m68knommu Namhyung Kim
2010-10-04 23:42 ` Andrew Morton
2010-10-05 3:49 ` [PATCH UPDATED] " Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 14/24] ptrace: cleanup arch_ptrace() on microblaze Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 15/24] ptrace: cleanup arch_ptrace() on MIPS Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 16/24] ptrace: cleanup arch_ptrace() on mn10300 Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 17/24] ptrace: cleanup arch_ptrace() on parisc Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 18/24] ptrace: cleanup arch_ptrace() on powerpc Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 19/24] ptrace: cleanup arch_ptrace() on score Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 20/24] ptrace: cleanup arch_ptrace() on sh Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 21/24] ptrace: cleanup arch_ptrace() on sparc Namhyung Kim
2010-09-30 19:00 ` David Miller
2010-09-30 9:27 ` [PATCH RESEND v3 22/24] ptrace: cleanup arch_ptrace() on tile Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 23/24] ptrace: cleanup arch_ptrace() on um Namhyung Kim
2010-09-30 9:27 ` [PATCH RESEND v3 24/24] ptrace: cleanup arch_ptrace() on xtensa Namhyung Kim
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