ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+

[pandora-kernel.git] / arch / arm / include / asm / assembler.h

diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 906703a..f67fd3a 100644 (file)
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -427,4 +427,25 @@ THUMB(     orr     \reg , \reg , #PSR_T_BIT        )
 #endif
        .endm
 
+       .irp    c,,eq,ne,cs,cc,mi,pl,vs,vc,hi,ls,ge,lt,gt,le,hs,lo
+       .macro  ret\c, reg
+#if __LINUX_ARM_ARCH__ < 6
+       mov\c   pc, \reg
+#else
+       .ifeqs  "\reg", "lr"
+       bx\c    \reg
+       .else
+       mov\c   pc, \reg
+       .endif
+#endif
+       .endm
+       .endr
+
+       .macro  ret.w, reg
+       ret     \reg
+#ifdef CONFIG_THUMB2_KERNEL
+       nop
+#endif
+       .endm
+
 #endif /* __ASM_ASSEMBLER_H__ */