From: Dave Martin Date: Fri, 30 Nov 2012 11:56:05 +0000 (+0000) Subject: ARM: virt: Avoid bx instruction for compatibility with <=ARMv4 X-Git-Tag: v3.8-rc5~4^2^2~2 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=a4a12e008e292a81d312659529b71be2026ab355;p=linux-2.6-block.git ARM: virt: Avoid bx instruction for compatibility with <=ARMv4 Non-T variants of ARMv4 do not support the bx instruction. However, __hyp_stub_install is always called from the same instruction set used to build the bulk of the kernel, so bx should not be necessary. This patch uses the traditional "mov pc" instead of bx. Cc: Signed-off-by: Dave Martin [will: fixed up remaining bx instruction] Signed-off-by: Will Deacon --- diff --git a/arch/arm/kernel/hyp-stub.S b/arch/arm/kernel/hyp-stub.S index 65b2417aebce..3c60256d3927 100644 --- a/arch/arm/kernel/hyp-stub.S +++ b/arch/arm/kernel/hyp-stub.S @@ -99,7 +99,7 @@ ENTRY(__hyp_stub_install_secondary) * immediately. */ compare_cpu_mode_with_primary r4, r5, r6, r7 - bxne lr + movne pc, lr /* * Once we have given up on one CPU, we do not try to install the @@ -111,7 +111,7 @@ ENTRY(__hyp_stub_install_secondary) */ cmp r4, #HYP_MODE - bxne lr @ give up if the CPU is not in HYP mode + movne pc, lr @ give up if the CPU is not in HYP mode /* * Configure HSCTLR to set correct exception endianness/instruction set @@ -200,7 +200,7 @@ ENDPROC(__hyp_get_vectors) @ fall through ENTRY(__hyp_set_vectors) __HVC(0) - bx lr + mov pc, lr ENDPROC(__hyp_set_vectors) #ifndef ZIMAGE