From: Huacai Chen chenhuacai@loongson.cn
stable inclusion from stable-v6.5-rc4 commit 03c53eb90c0c61885b2175adf8675fb56df7f8db category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I80YEI CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v...
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Binutils 2.41 enables linker relaxation by default, but the kernel module loader doesn't support that, so just disable it. Otherwise we get such an error when loading modules:
"Unknown relocation type 102"
As an alternative, we could add linker relaxation support in the kernel module loader. But it is relatively large complexity that may or may not bring a similar gain, and we don't really want to include this linker pass in the kernel.
Reviewed-by: WANG Xuerui git@xen0n.name Signed-off-by: Huacai Chen chenhuacai@loongson.cn --- arch/loongarch/Makefile | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index 345dc10576d4..a0f194da592b 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -55,6 +55,8 @@ LDFLAGS_vmlinux += -G0 -static -n -nostdlib ifdef CONFIG_AS_HAS_EXPLICIT_RELOCS cflags-y += -mexplicit-relocs KBUILD_CFLAGS_KERNEL += -mdirect-extern-access +KBUILD_AFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) +KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) else cflags-y += $(call cc-option,-mno-explicit-relocs) KBUILD_AFLAGS_KERNEL += -Wa,-mla-global-with-pcrel