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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2013-07-25 09:16:48 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-07-26 11:25:22 (GMT) |
| commit | 198b1bf8c3a06de42a88ad7f9d664f18d740a418 (patch) | |
| tree | 51843646428d4e42211f1c8399bfb9187eb8ec9b /arch/s390 | |
| parent | 3b0040a47ad63f7147e9e7d2febb61a3b564bb90 (diff) | |
| download | linux-198b1bf8c3a06de42a88ad7f9d664f18d740a418.tar.xz | |
s390/perf: fix compile error (undefined reference sie_exit)
The perf_event code references sie_exit even if KVM is not available.
So add proper ifdefs to fix this one:
arch/s390/built-in.o: In function `sys_call_table_emu':
(.rodata+0x2b98): undefined reference to `sie_exit'
arch/s390/built-in.o: In function `sys_call_table_emu':
(.rodata+0x2ba0): undefined reference to `sie_exit'
make: *** [vmlinux] Error 1
Reported-by: Zhouping Liu <zliu@redhat.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/perf_event.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c index a6fc037..500aa10 100644 --- a/arch/s390/kernel/perf_event.c +++ b/arch/s390/kernel/perf_event.c @@ -52,12 +52,13 @@ static struct kvm_s390_sie_block *sie_block(struct pt_regs *regs) static bool is_in_guest(struct pt_regs *regs) { - unsigned long ip = instruction_pointer(regs); - if (user_mode(regs)) return false; - - return ip == (unsigned long) &sie_exit; +#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE) + return instruction_pointer(regs) == (unsigned long) &sie_exit; +#else + return false; +#endif } static unsigned long guest_is_user_mode(struct pt_regs *regs) |