From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: [PATCH 0/6] [v2] asm-generic: strncpy_from_user/strnlen_user cleanup Date: Sat, 15 May 2021 12:17:57 +0200 Message-ID: <20210515101803.924427-1-arnd@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621073940; bh=IpDqq3tGZovUUgcolTosWSkNN0zOGEGLOzuZ4zntl2M=; h=From:To:Cc:Subject:Date:From; b=mPn1OjVomxs7Tu/J0zC+FtbvaOsr6yQtXpoEj9sOi4LdXTcbto5qJ96l5zGrlpywO S9h/yllV/A7xG4K2EqluCEN+iU8aMWSWgvByBTJiljpi+sS3kiNXEDaRAWkE1e7SKM sxKRPsWhTYLl3eTQWbxjjYc5gYDjylTk+ySJih9CK9j6ccvN98Y6VtRlIgLO5VL8+8 1QeSFO1LDLs8iguwhOAyXJFeodhvDZp8PXLkMitx7yPyKl0bGUmVhJjLazb7iS4leT cYyRbNnN88rAws6za+S3f2nl8YyuPZ0+1JIwQRAsVrcvD6dvU/aeGd/unrmM2Ofwwi 8sCIbzxalbdtQ== List-ID: Content-Type: text/plain; charset="us-ascii" To: linux-arch@vger.kernel.org Cc: Arnd Bergmann , Christoph Hellwig , Al Viro , Vineet Gupta , Yoshinori Sato , Brian Cain , Geert Uytterhoeven , Paul Walmsley , Palmer Dabbelt , Albert Ou , Jeff Dike , Richard Weinberger , Anton Ivanov , Sid Manning , Andrew Morton , Mike Rapoport , linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org, uclinux-h8-devel@lists.sourceforge.jp, linux-hexagon@vger.kernel.org, linux-m68k@lists.linux- From: Arnd Bergmann As I've queued up some patches for asm-generic, I remembered an older series that I created but never submitted. These two functions appear to be unnecessarily different between architectures, and the asm-generic version is a bit questionable, even for NOMMU architectures. Clean this up to just use the generic library version for anything that uses the generic version today. I've expanded on the patch descriptions a little, as suggested by Christoph Hellwig, but I suspect a more detailed review would uncover additional problems with the custom versions that are getting removed. Arnd Arnd Bergmann (6): [v2] asm-generic/uaccess.h: remove __strncpy_from_user/__strnlen_user [v2] h8300: remove stale strncpy_from_user [v2] hexagon: use generic strncpy/strnlen from_user [v2] arc: use generic strncpy/strnlen from_user [v2] asm-generic: uaccess: remove inline strncpy_from_user/strnlen_user [v2] asm-generic: remove extra strn{cpy_from,len}_user declarations arch/arc/Kconfig | 2 + arch/arc/include/asm/uaccess.h | 72 ---------------- arch/arc/mm/extable.c | 12 --- arch/h8300/Kconfig | 2 + arch/h8300/kernel/h8300_ksyms.c | 2 - arch/h8300/lib/Makefile | 2 +- arch/h8300/lib/strncpy.S | 35 -------- arch/hexagon/Kconfig | 2 + arch/hexagon/include/asm/uaccess.h | 31 ------- arch/hexagon/kernel/hexagon_ksyms.c | 1 - arch/hexagon/mm/Makefile | 2 +- arch/hexagon/mm/strnlen_user.S | 126 ---------------------------- arch/m68k/Kconfig | 4 +- arch/riscv/Kconfig | 4 +- arch/um/include/asm/uaccess.h | 5 +- arch/um/kernel/skas/uaccess.c | 5 +- include/asm-generic/uaccess.h | 52 ++---------- 17 files changed, 25 insertions(+), 334 deletions(-) delete mode 100644 arch/h8300/lib/strncpy.S delete mode 100644 arch/hexagon/mm/strnlen_user.S -- 2.29.2 Cc: Christoph Hellwig Cc: Al Viro Cc: Vineet Gupta Cc: Yoshinori Sato Cc: Brian Cain Cc: Geert Uytterhoeven Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: Jeff Dike Cc: Richard Weinberger Cc: Anton Ivanov Cc: Arnd Bergmann Cc: Sid Manning Cc: Andrew Morton Cc: Mike Rapoport Cc: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: uclinux-h8-devel@lists.sourceforge.jp Cc: linux-hexagon@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-riscv@lists.infradead.org Cc: linux-um@lists.infradead.org Cc: linux-arch@vger.kernel.org