ARM: Keystone: No need to preserve r12 across smc call
Register r12 is caller-save, so no need preserve it keystone_cpu_smc().
Reported-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
diff --git a/arch/arm/mach-keystone/smc.S b/arch/arm/mach-keystone/smc.S
index 9b9e4f7..5bb5176 100644
--- a/arch/arm/mach-keystone/smc.S
+++ b/arch/arm/mach-keystone/smc.S
@@ -22,8 +22,8 @@
* Return: Non zero value on failure
*/
ENTRY(keystone_cpu_smc)
- stmfd sp!, {r4-r12, lr}
+ stmfd sp!, {r4-r11, lr}
smc #0
dsb
- ldmfd sp!, {r4-r12, pc}
+ ldmfd sp!, {r4-r11, pc}
ENDPROC(keystone_cpu_smc)