Commit 16eefbd1 authored Aug 03, 2015 by Peter Zijlstra Committed by Ingo Molnar Aug 12, 2015

x86/kconfig: Enable CONFIG_JUMP_LABEL in the defconfigs



Enable CONFIG_JUMP_LABEL in the defconfigs, the feature already deals with
GCC not having the asm-goto feature so will not break the build on
older compilers.

Having it enabled generates a faster kernel at very little extra cost
since we already include all the code patching code by having KPROBES
enabled.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 7a834ba5

arch/x86/configs/i386_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,7 @@ CONFIG_BLK_DEV_INITRD=y
		# CONFIG_COMPAT_BRK is not set
		CONFIG_PROFILING=y
		CONFIG_KPROBES=y
		CONFIG_JUMP_LABEL=y
		CONFIG_MODULES=y
		CONFIG_MODULE_UNLOAD=y
		CONFIG_MODULE_FORCE_UNLOAD=y

arch/x86/configs/x86_64_defconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@ CONFIG_BLK_DEV_INITRD=y
		# CONFIG_COMPAT_BRK is not set
		CONFIG_PROFILING=y
		CONFIG_KPROBES=y
		CONFIG_JUMP_LABEL=y
		CONFIG_MODULES=y
		CONFIG_MODULE_UNLOAD=y
		CONFIG_MODULE_FORCE_UNLOAD=y