From f3575e230cf8537951ebe3cc19974c5db2ff4f1c Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Wed, 5 Aug 2015 15:42:40 -0700 Subject: [PATCH] MIPS: CPS: drop .set mips64r2 directives Commit 977e043d5ea1 ("MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2") leads to .set mips64r2 directives being present in 32 bit (ie. CONFIG_32BIT=y) kernels. This is incorrect & leads to MIPS64 instructions being emitted by the assembler when expanding pseudo-instructions. For example the "move" instruction can legitimately be expanded to a "daddu". This causes problems when the kernel is run on a MIPS32 CPU, as CONFIG_32BIT kernels of course often are... Fix this by dropping the .set directives entirely now that Kconfig should be ensuring that kernels including this code are built with a suitable -march= compiler flag. Signed-off-by: Paul Burton Cc: Markos Chandras Cc: James Hogan Cc: # 3.16+ Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10869/ Signed-off-by: Ralf Baechle --- arch/mips/kernel/cps-vec.S | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S index 8fd5a276cad2..ac81edd44563 100644 --- a/arch/mips/kernel/cps-vec.S +++ b/arch/mips/kernel/cps-vec.S @@ -257,7 +257,6 @@ LEAF(mips_cps_core_init) has_mt t0, 3f .set push - .set mips64r2 .set mt /* Only allow 1 TC per VPE to execute... */ @@ -376,7 +375,6 @@ LEAF(mips_cps_boot_vpes) nop .set push - .set mips64r2 .set mt 1: /* Enter VPE configuration state */ -- 2.34.1