diff options
| author | Greg Kroah-Hartman <[email protected]> | 2020-05-25 09:11:19 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-05-25 09:11:19 +0200 |
| commit | c2312ff575fcaed96889d5bb5392afcc604c9442 (patch) | |
| tree | 475d63360ee17732fac41c7c1e4a1636ed92e7cb /include/linux/compiler.h | |
| parent | a3975dea1696b7c81319dc4b66e3c378dd47ccfb (diff) | |
| parent | 9cb1fd0efd195590b828b9b865421ad345a4a145 (diff) | |
Merge 5.7-rc7 into staging-next
We need the staging/iio fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 034b0a644efc..448c91bf543b 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -356,4 +356,10 @@ static inline void *offset_to_ptr(const int *off) /* &a[0] degrades to a pointer: a different type from an array */ #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) +/* + * 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 */ |