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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 14:10:40 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 14:10:19 (GMT) |
| commit | baa071588c3ffcc1a8721faf9337140e85d34bf6 (patch) | |
| tree | 5aefe1db8edbc3dfb956669e657368673ad601ef /arch/s390/include/asm/syscall.h | |
| parent | 178514d7e3e8cfba087b3a208e22a54ce65e8f34 (diff) | |
| download | linux-fsl-qoriq-baa071588c3ffcc1a8721faf9337140e85d34bf6.tar.xz | |
[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/asm/syscall.h')
| -rw-r--r-- | arch/s390/include/asm/syscall.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h index 8429686..5c0246b 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]; |