xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MIPS: Fix modversions

Browse Source 
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: 576a2f0c5c ("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>
This commit is contained in:
Arnd Bergmann
2017-01-17 16:18:35 +01:00
committed by Ralf Baechle
parent ea58fca184
commit b668970e61
6 changed files with 43 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/mips/lib/strlen_user.S
View File

@@ -25,7 +25,6 @@
*/
.macro __BUILD_STRLEN_ASM func
LEAF(__strlen_\func\()_asm)
EXPORT_SYMBOL(__strlen_\func\()_asm)
LONG_L v0, TI_ADDR_LIMIT($28) # pointer ok?
and v0, a0
bnez v0, .Lfault\@
@@ -50,9 +49,11 @@ EXPORT_SYMBOL(__strlen_\func\()_asm)
/* Set aliases */
.global __strlen_user_asm
.set __strlen_user_asm, __strlen_kernel_asm
EXPORT_SYMBOL(__strlen_user_asm)
#endif
__BUILD_STRLEN_ASM kernel
EXPORT_SYMBOL(__strlen_kernel_asm)
#ifdef CONFIG_EVA
@@ -60,4 +61,5 @@ __BUILD_STRLEN_ASM kernel
.set eva
__BUILD_STRLEN_ASM user
.set pop
EXPORT_SYMBOL(__strlen_user_asm)
#endif