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authorMaxime Ripard <maxime@cerno.tech>2022-10-18 16:00:03 +0300
committerMaxime Ripard <maxime@cerno.tech>2022-10-18 16:00:03 +0300
commita140a6a2d5ec0329ad05cd3532a91ad0ce58dceb (patch)
treeb2d44a1da423c53bd6c3ab3facd45ff5f2087ffd /include/linux/compiler_attributes.h
parent28743e25fa1c867675bd8ff976eb92d4251f13a1 (diff)
parent9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff)
downloadlinux-a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb.tar.xz
Merge drm/drm-next into drm-misc-next
Let's kick-off this release cycle. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'include/linux/compiler_attributes.h')
-rw-r--r--include/linux/compiler_attributes.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h
index 445e80517cab..898b3458b24a 100644
--- a/include/linux/compiler_attributes.h
+++ b/include/linux/compiler_attributes.h
@@ -35,7 +35,8 @@
/*
* Note: do not use this directly. Instead, use __alloc_size() since it is conditionally
- * available and includes other attributes.
+ * available and includes other attributes. For GCC < 9.1, __alloc_size__ gets undefined
+ * in compiler-gcc.h, due to misbehaviors.
*
* gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-alloc_005fsize-function-attribute
* clang: https://clang.llvm.org/docs/AttributeReference.html#alloc-size
@@ -371,4 +372,11 @@
*/
#define __weak __attribute__((__weak__))
+/*
+ * Used by functions that use '__builtin_return_address'. These function
+ * don't want to be splited or made inline, which can make
+ * the '__builtin_return_address' get unexpected address.
+ */
+#define __fix_address noinline __noclone
+
#endif /* __LINUX_COMPILER_ATTRIBUTES_H */