[linux-yocto] [PATCH] tracing/x86: Fix compilation failure when CONFIG_TRACE_IRQFLAGS is off

[zhe.he at windriver.com]

From: He Zhe <zhe.he at windriver.com>

b470fb994ebd ("tracing/x86: Save CR2 before tracing irqsoff on error_entry")
misses a "#ifdef".

Signed-off-by: He Zhe <zhe.he at windriver.com>
---
 arch/x86/entry/common.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index 48a0a59..56d54d30 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -308,6 +308,7 @@ __visible void do_syscall_64(unsigned long nr, struct pt_regs *regs)
 	syscall_return_slowpath(regs);
 }
 
+#ifdef CONFIG_TRACE_IRQFLAGS
 extern void trace_hardirqs_on_caller(unsigned long caller_addr);
 __visible void trace_hardirqs_on_caller_cr2(unsigned long caller_addr)
 {
@@ -334,6 +335,7 @@ __visible void trace_hardirqs_off_caller_cr2(unsigned long caller_addr)
 	exception_exit(prev_state);
 }
 #endif
+#endif
 
 #if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
 /*
-- 
2.7.4