diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/compiler.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 5f8749440c6a..e5d349d65ae9 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -556,4 +556,11 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s # define __kprobes # define nokprobe_inline inline #endif + +/* + * This is needed in functions which generate the stack canary, see + * arch/x86/kernel/smpboot.c::start_secondary() for an example. + */ +#define prevent_tail_call_optimization() mb() + #endif /* __LINUX_COMPILER_H */ |