ARM: 5991/1: Fix regression in restore_user_regs macro
ARMv5T and earlier require that a ldm {}^ instruction is not followed
by an instruction that accesses banked registers. This patch restores
the nop that was lost in commit b86040a59feb255a8193173caa4d5199464433d5.
Signed-off-by: Anders Grafström <grfstrm@users.sourceforge.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 7e9ed1e..d93f976 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -102,6 +102,8 @@
.else
ldmdb sp, {r0 - lr}^ @ get calling r0 - lr
.endif
+ mov r0, r0 @ ARMv5T and earlier require a nop
+ @ after ldm {}^
add sp, sp, #S_FRAME_SIZE - S_PC
movs pc, lr @ return & move spsr_svc into cpsr
.endm