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 (file)
--- 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)