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| author | Arnd Bergmann <arnd@arndb.de> | 2017-01-17 16:18:35 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-01-24 18:30:35 +0100 |
| commit | b668970e610f186aa11f9fe7a7f7e35ae2c83476 (patch) | |
| tree | db8fcfa08ae721a86d7223f5f3cfda3d832d3ce0 /arch/mips/lib/strncpy_user.S | |
| parent | ea58fca1842a5dc410cae4167b01643db971a4e2 (diff) | |
| download | linux-b668970e610f186aa11f9fe7a7f7e35ae2c83476.tar.bz2 | |
MIPS: Fix modversions
kernelci.org reports tons of build warnings for linux-next:
35 WARNING: "memcpy" [fs/fat/msdos.ko] has no CRC!
35 WARNING: "__copy_user" [fs/fat/fat.ko] has no CRC!
32 WARNING: EXPORT symbol "memset" [vmlinux] version generation failed, symbol will not be versioned.
32 WARNING: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned.
32 WARNING: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned.
32 WARNING: EXPORT symbol "__strncpy_from_user_nocheck_asm" [vmlinux] version generation failed, symbol will not be versioned.
The problem here is mainly the missing asm/asm-prototypes.h header file
that is supposed to include the prototypes for each symbol that is exported
from an assembler file.
A second problem is that the asm/uaccess.h header contains some but not
all the necessary declarations for the user access helpers.
Finally, the vdso build is broken once we add asm/asm-prototypes.h, so
we have to fix this at the same time by changing the vdso header. My
approach here is to just not look for exported symbols in the VDSO
assembler files, as the symbols cannot be exported anyway.
Fixes: 576a2f0c5c6d ("MIPS: Export memcpy & memset functions alongside their definitions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Maciej W. Rozycki <macro@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/15038/
Patchwork: https://patchwork.linux-mips.org/patch/15069/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/lib/strncpy_user.S')
| -rw-r--r-- | arch/mips/lib/strncpy_user.S | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/mips/lib/strncpy_user.S b/arch/mips/lib/strncpy_user.S index af745b1d04e3..5267ca800b84 100644 --- a/arch/mips/lib/strncpy_user.S +++ b/arch/mips/lib/strncpy_user.S @@ -31,13 +31,11 @@ .macro __BUILD_STRNCPY_ASM func LEAF(__strncpy_from_\func\()_asm) -EXPORT_SYMBOL(__strncpy_from_\func\()_asm) LONG_L v0, TI_ADDR_LIMIT($28) # pointer ok? and v0, a1 bnez v0, .Lfault\@ FEXPORT(__strncpy_from_\func\()_nocheck_asm) -EXPORT_SYMBOL(__strncpy_from_\func\()_nocheck_asm) move t0, zero move v1, a1 .ifeqs "\func","kernel" @@ -75,15 +73,19 @@ EXPORT_SYMBOL(__strncpy_from_\func\()_nocheck_asm) .global __strncpy_from_user_nocheck_asm .set __strncpy_from_user_asm, __strncpy_from_kernel_asm .set __strncpy_from_user_nocheck_asm, __strncpy_from_kernel_nocheck_asm - EXPORT_SYMBOL(__strncpy_from_user_asm) - EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm) +EXPORT_SYMBOL(__strncpy_from_user_asm) +EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm) #endif __BUILD_STRNCPY_ASM kernel +EXPORT_SYMBOL(__strncpy_from_kernel_asm) +EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm) #ifdef CONFIG_EVA .set push .set eva __BUILD_STRNCPY_ASM user .set pop +EXPORT_SYMBOL(__strncpy_from_user_asm) +EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm) #endif |