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| author | Sami Tolvanen <samitolvanen@google.com> | 2025-03-26 19:05:00 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 10:57:55 +0200 |
| commit | 9eeafc9fd196ae95689c721451864a452b1aed6b (patch) | |
| tree | 6c525dbe3153d4be89b57766798169aad2512f12 /arch | |
| parent | 55087dbb6bf2495526881c1dad400d3ac95b4078 (diff) | |
| download | linux-9eeafc9fd196ae95689c721451864a452b1aed6b.tar.gz linux-9eeafc9fd196ae95689c721451864a452b1aed6b.tar.bz2 linux-9eeafc9fd196ae95689c721451864a452b1aed6b.zip | |
um: Add cmpxchg8b_emu and checksum functions to asm-prototypes.h
[ Upstream commit 674d03f6bd6b0f8327f1a4920ff5893557facfbd ]
With CONFIG_GENDWARFKSYMS, um builds fail due to missing prototypes
in asm/asm-prototypes.h. Add declarations for cmpxchg8b_emu and the
exported checksum functions, including csum_partial_copy_generic as
it's also exported.
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503251216.lE4t9Ikj-lkp@intel.com/
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://patch.msgid.link/20250326190500.847236-2-samitolvanen@google.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/um/include/asm/asm-prototypes.h | 5 | ||||
| -rw-r--r-- | arch/x86/um/asm/checksum.h | 3 |
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/um/include/asm/asm-prototypes.h b/arch/um/include/asm/asm-prototypes.h index 5898a26daa0d..408b31d59127 100644 --- a/arch/um/include/asm/asm-prototypes.h +++ b/arch/um/include/asm/asm-prototypes.h @@ -1 +1,6 @@ #include <asm-generic/asm-prototypes.h> +#include <asm/checksum.h> + +#ifdef CONFIG_UML_X86 +extern void cmpxchg8b_emu(void); +#endif diff --git a/arch/x86/um/asm/checksum.h b/arch/x86/um/asm/checksum.h index b07824500363..ddc144657efa 100644 --- a/arch/x86/um/asm/checksum.h +++ b/arch/x86/um/asm/checksum.h @@ -20,6 +20,9 @@ */ extern __wsum csum_partial(const void *buff, int len, __wsum sum); +/* Do not call this directly. Declared for export type visibility. */ +extern __visible __wsum csum_partial_copy_generic(const void *src, void *dst, int len); + /** * csum_fold - Fold and invert a 32bit checksum. * sum: 32bit unfolded sum |