Commit e6226997 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

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: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 166ec463

arch/alpha/Kconfig

+0 −2
Original line number Diff line number Diff line
@@ -29,8 +29,6 @@ config ALPHA 
	select AUDIT_ARCH

	select GENERIC_CPU_VULNERABILITIES

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_STRNCPY_FROM_USER

	select GENERIC_STRNLEN_USER

	select HAVE_ARCH_AUDITSYSCALL

	select HAVE_MOD_ARCH_SPECIFIC

	select MODULES_USE_ELF_RELA

arch/arc/Kconfig

+0 −2
Original line number Diff line number Diff line
@@ -27,8 +27,6 @@ config ARC 
	select GENERIC_PENDING_IRQ if SMP

	select GENERIC_SCHED_CLOCK

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_STRNCPY_FROM_USER

	select GENERIC_STRNLEN_USER

	select HAVE_ARCH_KGDB

	select HAVE_ARCH_TRACEHOOK

	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if ARC_MMU_V4

arch/arm/Kconfig

+0 −2
Original line number Diff line number Diff line
@@ -63,8 +63,6 @@ config ARM 
	select GENERIC_PCI_IOMAP

	select GENERIC_SCHED_CLOCK

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_STRNCPY_FROM_USER

	select GENERIC_STRNLEN_USER

	select HANDLE_DOMAIN_IRQ

	select HARDIRQS_SW_RESEND

	select HAVE_ARCH_AUDITSYSCALL if AEABI && !OABI_COMPAT

arch/arm64/Kconfig

+0 −2
Original line number Diff line number Diff line
@@ -130,8 +130,6 @@ config ARM64 
	select GENERIC_PTDUMP

	select GENERIC_SCHED_CLOCK

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_STRNCPY_FROM_USER

	select GENERIC_STRNLEN_USER

	select GENERIC_TIME_VSYSCALL

	select GENERIC_GETTIMEOFDAY

	select GENERIC_VDSO_TIME_NS

arch/csky/Kconfig

+0 −2
Original line number Diff line number Diff line
@@ -35,8 +35,6 @@ config CSKY 
	select GENERIC_IRQ_MULTI_HANDLER

	select GENERIC_SCHED_CLOCK

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_STRNCPY_FROM_USER

	select GENERIC_STRNLEN_USER

	select GENERIC_TIME_VSYSCALL

	select GENERIC_VDSO_32

	select GENERIC_GETTIMEOFDAY