From e6226997ec5ac272fa76274c3675bd5b7b437c53 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 17 May 2021 09:22:34 +0200 Subject: 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" Cc: Anton Ivanov Cc: Christian Borntraeger Cc: Heiko Carstens Cc: Helge Deller Cc: Jeff Dike Cc: Max Filippov Cc: Richard Weinberger Cc: Thomas Bogendoerfer Cc: Vasily Gorbik 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 Acked-by: Helge Deller # parisc Reviewed-by: Christoph Hellwig Signed-off-by: Arnd Bergmann --- arch/xtensa/kernel/xtensa_ksyms.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/xtensa/kernel') diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c index 415fe7faa37f..d79edbb98d2a 100644 --- a/arch/xtensa/kernel/xtensa_ksyms.c +++ b/arch/xtensa/kernel/xtensa_ksyms.c @@ -43,7 +43,7 @@ EXPORT_SYMBOL(memmove); EXPORT_SYMBOL(__memset); EXPORT_SYMBOL(__memcpy); EXPORT_SYMBOL(__memmove); -#ifndef CONFIG_GENERIC_STRNCPY_FROM_USER +#ifdef CONFIG_ARCH_HAS_STRNCPY_FROM_USER EXPORT_SYMBOL(__strncpy_user); #endif EXPORT_SYMBOL(clear_page); -- cgit v1.2.3