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 <ISA> 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 <paul.bur...@imgtec.com> Cc: Markos Chandras <markos.chand...@imgtec.com> Cc: <sta...@vger.kernel.org> # 3.16+ --- 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 209ded1..763d8b7 100644 --- a/arch/mips/kernel/cps-vec.S +++ b/arch/mips/kernel/cps-vec.S @@ -229,7 +229,6 @@ LEAF(mips_cps_core_init) has_mt t0, 3f .set push - .set mips64r2 .set mt /* Only allow 1 TC per VPE to execute... */ @@ -348,7 +347,6 @@ LEAF(mips_cps_boot_vpes) nop .set push - .set mips64r2 .set mt 1: /* Enter VPE configuration state */ -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/