Commit 674d03f6 authored by Sami Tolvanen's avatar Sami Tolvanen Committed by Johannes Berg
Browse files

um: Add cmpxchg8b_emu and checksum functions to asm-prototypes.h 



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: default avatarkernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503251216.lE4t9Ikj-lkp@intel.com/


Signed-off-by: default avatarSami Tolvanen <samitolvanen@google.com>
Link: https://patch.msgid.link/20250326190500.847236-2-samitolvanen@google.com


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 22361369

arch/um/include/asm/asm-prototypes.h

+5 −0
Original line number Diff line number Diff line 
#include <asm-generic/asm-prototypes.h>

#include <asm/checksum.h>



#ifdef CONFIG_UML_X86

extern void cmpxchg8b_emu(void);

#endif

arch/x86/um/asm/checksum.h

+3 −0
Original line number Diff line number Diff line
@@ -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