arm64: move --fix-cortex-a53-843419 linker test to Kconfig
Since commit 805b2e1d427a ("kbuild: include Makefile.compiler only when
compiler is needed"), "make ARCH=arm64 (modules_)install" shows a false
positive warning.
Move the ld-option test to Kconfig, so that the result can be stored in
the .config file, avoiding multiple-time evaluations in the build and
installation time.
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 5656e7a..4a33428 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -521,6 +521,9 @@
If unsure, say Y.
+config ARM64_LD_HAS_FIX_ERRATUM_843419
+ def_bool $(ld-option,--fix-cortex-a53-843419)
+
config ARM64_ERRATUM_1024718
bool "Cortex-A55: 1024718: Update of DBM/AP bits without break before make might result in incorrect update"
default y
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 5b84aec..7ef4447 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -21,7 +21,7 @@
endif
ifeq ($(CONFIG_ARM64_ERRATUM_843419),y)
- ifeq ($(call ld-option, --fix-cortex-a53-843419),)
+ ifneq ($(CONFIG_ARM64_LD_HAS_FIX_ERRATUM_843419),y)
$(warning ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum)
else
LDFLAGS_vmlinux += --fix-cortex-a53-843419
