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authorMichael Bestas <mkbestas@lineageos.org>2020-06-04 00:49:19 +0300
committerMichael Bestas <mkbestas@lineageos.org>2020-06-04 00:49:19 +0300
commit08e780103611fb2be36c17ff80de6cb54c910dd0 (patch)
tree8bd63552a71f699da64faee819fc9c56501be6f2 /include/linux/compiler.h
parent978414b66805b23c93560db9cdacd4fd83f8cc52 (diff)
parent60fca757270659c627384fcfe7219d2b85f1459c (diff)
Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-17.1-caf-msm8998
This brings LA.UM.8.4.r1-05500-8x98.0 up to date with https://android.googlesource.com/kernel/common/ android-4.4-p at commit: 60fca75727065 Merge 4.4.226 into android-4.4-p Conflicts: drivers/base/firmware_class.c drivers/gpu/drm/msm/msm_gem.c drivers/mmc/host/sdhci.c drivers/net/wireless/ath/ath10k/core.c kernel/trace/blktrace.c net/socket.c sound/core/rawmidi.c sound/usb/mixer.c Change-Id: Ic8599e865656da72a9405c45f27091ec1ddc168c
Diffstat (limited to 'include/linux/compiler.h')
-rw-r--r--include/linux/compiler.h7
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 */