Messages in this thread Patch in this message | | | Date | Wed, 7 Apr 2021 10:35:43 -0700 | Subject | [PATCH] MIPS: select ARCH_KEEP_MEMBLOCK unconditionally | From | Nick Desaulniers <> |
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While removing allnoconfig_y from Kconfig, ARCH=mips allnoconfig builds started failing with the error:
WARNING: modpost: vmlinux.o(.text+0x9c70): Section mismatch in reference from the function reserve_exception_space() to the function .meminit.text:memblock_reserve() The function reserve_exception_space() references the function __meminit memblock_reserve(). This is often because reserve_exception_space lacks a __meminit annotation or the annotation of memblock_reserve is wrong. ERROR: modpost: Section mismatches detected. Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
allnoconfig disables DEBUG_KERNEL and thus ARCH_KEEP_MEMBLOCK, which changes __init_memblock to be equivalent to __meminit triggering the above error.
Link: https://lore.kernel.org/linux-kbuild/20210313194836.372585-11-masahiroy@kernel.org/ Fixes: commit a8c0f1c634507 ("MIPS: Select ARCH_KEEP_MEMBLOCK if DEBUG_KERNEL to enable sysfs memblock debug") Cc: Masahiro Yamada <masahiroy@kernel.org> Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> --- arch/mips/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index e9893cd34992..702648f60e41 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -12,7 +12,7 @@ config MIPS select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAS_GCOV_PROFILE_ALL - select ARCH_KEEP_MEMBLOCK if DEBUG_KERNEL + select ARCH_KEEP_MEMBLOCK select ARCH_SUPPORTS_UPROBES select ARCH_USE_BUILTIN_BSWAP select ARCH_USE_CMPXCHG_LOCKREF if 64BIT -- 2.31.1.295.g9ea45b61b8-goog
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