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| author | Arnd Bergmann <arnd@arndb.de> | 2021-05-17 09:22:34 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2021-07-30 10:30:21 +0200 |
| commit | e6226997ec5ac272fa76274c3675bd5b7b437c53 (patch) | |
| tree | 578040f568df097b66829e437fc6131196c8ff37 /arch/um | |
| parent | asm-generic: remove extra strn{cpy_from,len}_user declarations (diff) | |
| download | linux-e6226997ec5ac272fa76274c3675bd5b7b437c53.tar.xz linux-e6226997ec5ac272fa76274c3675bd5b7b437c53.zip | |
asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbols
Most architectures do not need a custom implementation, and in most
cases the generic implementation is preferred, so change the polariy
on these Kconfig symbols to require architectures to select them when
they provide their own version.
The new name is CONFIG_ARCH_HAS_{STRNCPY_FROM,STRNLEN}_USER.
The remaining architectures at the moment are: ia64, mips, parisc,
um and xtensa. We should probably convert these as well, but
I was not sure how far to take this series. Thomas Bogendoerfer
had some concerns about converting mips but may still do some
more detailed measurements to see which version is better.
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-um@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig index 0561b73cfd9a..77e66d3719f6 100644 --- a/arch/um/Kconfig +++ b/arch/um/Kconfig @@ -7,6 +7,8 @@ config UML default y select ARCH_EPHEMERAL_INODES select ARCH_HAS_KCOV + select ARCH_HAS_STRNCPY_FROM_USER + select ARCH_HAS_STRNLEN_USER select ARCH_NO_PREEMPT select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_SECCOMP_FILTER |