path: root/Makefile
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authorLinus Torvalds <>2016-10-12 10:23:41 -0700
committerLinus Torvalds <>2016-10-12 10:23:41 -0700
commitef6000b4c6706cbb1787836442b5a74542b1809f (patch)
tree079d10b266768a7a164cc5bac48f05c00fe0fcb5 /Makefile
parent1573d2caf713874cfe0d1336c823d0fb548d8bed (diff)
Disable the __builtin_return_address() warning globally after all
This affectively reverts commit 377ccbb48373 ("Makefile: Mute warning for __builtin_return_address(>0) for tracing only") because it turns out that it really isn't tracing only - it's all over the tree. We already also had the warning disabled separately for mm/usercopy.c (which this commit also removes), and it turns out that we will also want to disable it for get_lock_parent_ip(), that is used for at least TRACE_IRQFLAGS. Which (when enabled) ends up being all over the tree. Steven Rostedt had a patch that tried to limit it to just the config options that actually triggered this, but quite frankly, the extra complexity and abstraction just isn't worth it. We have never actually had a case where the warning is actually useful, so let's just disable it globally and not worry about it. Acked-by: Steven Rostedt <> Cc: Thomas Gleixner <> Cc: Andrew Morton <> Cc: Ingo Molnar <> Cc: Peter Anvin <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'Makefile')
1 files changed, 1 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index addb235b537c..27f97b53e6eb 100644
--- a/Makefile
+++ b/Makefile
@@ -621,6 +621,7 @@ include arch/$(SRCARCH)/Makefile
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
+KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,)