From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: [PATCH 09/14] m68k: drop custom __access_ok() Date: Mon, 14 Feb 2022 17:34:47 +0100 Message-ID: <20220214163452.1568807-10-arnd@kernel.org> References: <20220214163452.1568807-1-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=1644856643; bh=JepNdDlcl+vjLJWkKWFbQ8vIdC8P4ZqTHDtlQLygTvQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Yg/pItSQEzs71U/F185pU77Adjq+Wuerpy4kR6BgmvnTJ6TSm1zrt/F8Hi0vGnBb+ /8Qj5B7b7QxWzSyj+YeaQuhTnchKrNXCzC5slLNGTccGG7g8bl+2UbzUrHWSpXGIt7 xOg1fig8QiFMO5I3dgU5J+VFGv9rj3JE/Q8LpSpGVH3h3UIE6QskDu0wdEwCOfzQ3s aEs8d4j4C6ZkWevO+OIcqOgq9ygDqYeks1ido77hfRKhPW+Q6EC6HRyawN1COLV7LZ IgymdocysjOODUy7N4XtW+MjvAWPMlGA3mGuN1K+i4O4Oyp887hWbHPbK6Uy2BO2A4 4Bp3sWpanrwTw== In-Reply-To: <20220214163452.1568807-1-arnd@kernel.org> List-ID: Content-Type: text/plain; charset="us-ascii" To: Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org Cc: linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-pa From: Arnd Bergmann While most m68k platforms use separate address spaces for user and kernel space, at least coldfire does not, and the other ones have a TASK_SIZE that is less than the entire 4GB address range. Using the generic implementation of __access_ok() stops coldfire user space from trivially accessing kernel memory, and is probably the right thing elsewhere for consistency as well. Signed-off-by: Arnd Bergmann --- arch/m68k/include/asm/uaccess.h | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h index d6bb5720365a..64914872a5c9 100644 --- a/arch/m68k/include/asm/uaccess.h +++ b/arch/m68k/include/asm/uaccess.h @@ -10,19 +10,6 @@ #include #include #include