From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Tue, 23 Feb 2016 14:53:18 +0000 Subject: [PATCH] [RFC] ARM: keystone: possibly fix big-endian kernels In-Reply-To: <1456238609-962461-1-git-send-email-arnd@arndb.de> References: <1456238609-962461-1-git-send-email-arnd@arndb.de> Message-ID: <20160223145318.GK19428@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Feb 23, 2016 at 03:43:21PM +0100, Arnd Bergmann wrote: > While discussing a regressing in the netcp driver, I wondered > whether Keystone can work with a big-endian kernel, and noticed > that we don't switch endianess when we enter the kernel on the > secondary CPU, or when we call into smc. NAK. Sorry Arnd, you're worringly wrong on this. secondary_startup will do the setend if necessary, there's no need to do this kind of junk in each and every platform. It's been this way since: commit 97bcb0fea590d3d704f985bec08f342d28992634 Author: Ben Dooks Date: Fri Feb 1 09:40:42 2013 +0000 So, I hope you've not been telling platform folk to do this. Please audit the arm-soc code to make sure, thanks. -- RMK's Patch system: http://www.arm.linux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.