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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-09-14 14:59:47 +0400
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-09-26 17:45:21 +0400
commit66389e8583af71f8e01fab7c8e704a6b393663b9 (patch)
tree811b723053968ddfa1a8ab706f7e437bf4e7836b /arch/s390
parent1a0f24878eb5ca56dff5f20b9f0e716947dc0394 (diff)
downloadlinux-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.c3
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;