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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2010-10-25 16:10:40 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-10-25 16:10:19 +0200
commitbaa071588c3ffcc1a8721faf9337140e85d34bf6 (patch)
tree5aefe1db8edbc3dfb956669e657368673ad601ef /arch/s390/include
parent178514d7e3e8cfba087b3a208e22a54ce65e8f34 (diff)
downloadlinux-linaro-android-baa071588c3ffcc1a8721faf9337140e85d34bf6.tar.gz
[S390] cleanup system call parameter setup
Do the setup of the stack overflow argument for the sixth system call parameter right before the branch to the system call function. That simplifies the system call parameter access code. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/syscall.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index 8429686951f..5c0246b955d 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -65,8 +65,6 @@ static inline void syscall_get_arguments(struct task_struct *task,
if (test_tsk_thread_flag(task, TIF_31BIT))
mask = 0xffffffff;
#endif
- if (i + n == 6)
- args[--n] = regs->args[0] & mask;
while (n-- > 0)
if (i + n > 0)
args[n] = regs->gprs[2 + i + n] & mask;
@@ -80,8 +78,6 @@ static inline void syscall_set_arguments(struct task_struct *task,
const unsigned long *args)
{
BUG_ON(i + n > 6);
- if (i + n == 6)
- regs->args[0] = args[--n];
while (n-- > 0)
if (i + n > 0)
regs->gprs[2 + i + n] = args[n];