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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-08-07 16:41:01 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2020-08-07 16:41:01 -0700 |
| commit | 9e8238020c5beba64e7ffafbb7ea0fb02fe68270 (patch) | |
| tree | 37c7fd953cfa7ebd3d6c476bc4c7d4de2302cdc3 /include/linux/compiler.h | |
| parent | Input: elan_i2c - add more hardware ID for Lenovo laptops (diff) | |
| parent | Input: exc3000 - add support to query model and fw_version (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 5.9 merge window.
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 5e88e7e33abe..448c91bf543b 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -347,7 +347,7 @@ static inline void *offset_to_ptr(const int *off) * compiler has support to do so. */ #define compiletime_assert(condition, msg) \ - _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) + _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) #define compiletime_assert_atomic_type(t) \ compiletime_assert(__native_word(t), \ @@ -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 */ |