Commit-ID: 8c778d541bec8a41cbd8fa73b7cba90b2d6606c1
Gitweb: http://git.kernel.org/tip/8c778d541bec8a41cbd8fa73b7cba90b2d6606c1
Author: Ingo Molnar <mingo@xxxxxxxxxx>
AuthorDate: Wed, 5 Feb 2014 06:51:37 +0100
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Sun, 9 Feb 2014 15:18:42 +0100
x86/debug: Disable CONFIG_X86_DECODER_SELFTEST in allmod/allyesconfigs
* Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
Andi Kleen suggested to turn off CONFIG_X86_DECODER_SELFTEST=y
in allyesconfig, because it costs a lot of CPU time.
(In practice randconfig builds will cover this test frequently
enough to provide build coverage.)
Suggested-by: Andi Kleen <andi@xxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Acked-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20140205055137.GB30094@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/Kconfig.debug | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 321a52c..b542ec1 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -185,6 +185,11 @@ config X86_DECODER_SELFTEST
bool "x86 instruction decoder selftest"
depends on DEBUG_KERNEL && KPROBES
depends on !COMPILE_TEST
+ #
+ # It can take some time to validate the image,
+ # make sure {allyes|allmod}config doesn't enable it:
+ #
+ depends on !COMPILE_TEST
---help---
Perform x86 instruction decoder selftests at build time.
This option is useful for checking the sanity of x86 instruction
--
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