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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-09-14 14:59:47 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-09-26 17:45:21 +0400 |
| commit | 66389e8583af71f8e01fab7c8e704a6b393663b9 (patch) | |
| tree | 811b723053968ddfa1a8ab706f7e437bf4e7836b /arch/s390 | |
| parent | 1a0f24878eb5ca56dff5f20b9f0e716947dc0394 (diff) | |
| download | linux-66389e8583af71f8e01fab7c8e704a6b393663b9.tar.xz | |
s390/ptrace: add missing ifdef
if (MACHINE_HAS_TE) translates to if (0) on !CONFIG_64BIT however the
compiler still warns about invalid shifts within non-reachable code.
So add an explicit ifdef to get rid of this warning:
arch/s390/kernel/ptrace.c: In function ‘update_per_regs’:
arch/s390/kernel/ptrace.c:63:4: warning: left shift count >= width of type [enabled by default]
arch/s390/kernel/ptrace.c:65:4: warning: left shift count >= width of type [enabled by default]
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index b817cc5e49ae..a314c57f4e94 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -53,6 +53,7 @@ void update_per_regs(struct task_struct *task) struct thread_struct *thread = &task->thread; struct per_regs old, new; +#ifdef CONFIG_64BIT /* Take care of the enable/disable of transactional execution. */ if (MACHINE_HAS_TE) { unsigned long cr0, cr0_new; @@ -67,7 +68,7 @@ void update_per_regs(struct task_struct *task) if (cr0 != cr0_new) __ctl_load(cr0_new, 0, 0); } - +#endif /* Copy user specified PER registers */ new.control = thread->per_user.control; new.start = thread->per_user.start; |