From: Markos Chandras Date: Wed, 24 Jun 2015 08:52:01 +0000 (+0100) Subject: MIPS: Fix erroneous JR emulation for MIPS R6 X-Git-Tag: omap-for-v4.2/fixes-rc2-v2~10^2~12 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=143fefc8f315cd10e046e6860913c421c3385cb1;p=pandora-kernel.git MIPS: Fix erroneous JR emulation for MIPS R6 Commit 5f9f41c474befb4ebbc40b27f65bb7d649241581 ("MIPS: kernel: Prepare the JR instruction for emulation on MIPS R6") added support for emulating the JR instruction on MIPS R6 cores but that introduced a bug which could be triggered when hitting a JALR opcode because the code used the wrong field in the 'r_format' struct to determine the instruction opcode. This lead to crashes because an emulated JALR instruction was treated as a JR one when the R6 emulator was turned off. Fixes: 5f9f41c474be ("MIPS: kernel: Prepare the JR instruction for emulation on MIPS R6") Cc: # 4.0+ Signed-off-by: Markos Chandras Cc: linux-mips@linux-mips.org Cc: stable@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10583/ Signed-off-by: Ralf Baechle --- Reading git-diff-tree failed