There's no point in trying to optimize the code when the code is
executed from a read-only medium (e. g. NOR flash) as in the XIP
case. Moreover, trying to do so in a XIP kernel may result in
faults and kernel crashes so let's explicitly disallow JUMP_LABEL
if XIP_KERNEL configuration option is set.
Signed-off-by: Vitaly Wool <vitaly.w...@konsulko.com>
---
arch/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/Kconfig b/arch/Kconfig
index 56b6ccc0e32d..88632c9588ae 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -81,6 +81,7 @@ config JUMP_LABEL
bool "Optimize very unlikely/likely branches"
depends on HAVE_ARCH_JUMP_LABEL
depends on CC_HAS_ASM_GOTO
+ depends on !XIP_KERNEL
help
This option enables a transparent branch optimization that
makes certain almost-always-true or almost-always-false branch
--
2.29.2
