Add a kconfig option to control whether we use jump label for the
cpu/mmu_has_feature() checks. Currently this does nothing, but we will
enabled it in the subsequent patches.
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
arch/powerpc/Kconfig.debug | 9 +++++++++
1 file changed, 9 insertions(+)
v3: New.
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index cfe08eab90c6..2512dac77adb 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -60,6 +60,15 @@ config CODE_PATCHING_SELFTEST
depends on DEBUG_KERNEL
default n
+config JUMP_LABEL_FEATURE_CHECKS
+ bool "Enable use of jump label for cpu/mmu_has_feature()"
+ depends on JUMP_LABEL
+ default y
+ help
+ Selecting this options enables use of jump labels for some internal
+ feature checks. This should generate more optimal code for those
+ checks.
+
config FTR_FIXUP_SELFTEST
bool "Run self-tests of the feature-fixup code"
depends on DEBUG_KERNEL
--
2.7.4
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