4.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sudeep Holla <[email protected]>

commit af391b15f7b56ce19f52862d36595637dd42b575 upstream.

This patch renames __cpu_suspend to cpu_suspend so that it's aligned
with ARM32. It also removes the redundant wrapper created.

This is in preparation to implement generic PSCI system suspend using
the cpu_{suspend,resume} which now has the same interface on both ARM
and ARM64.

Cc: Mark Rutland <[email protected]>
Reviewed-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Ashwin Chaugule <[email protected]>
Signed-off-by: Sudeep Holla <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 arch/arm64/include/asm/cpuidle.h |    8 ++------
 arch/arm64/include/asm/suspend.h |    2 +-
 arch/arm64/kernel/cpuidle.c      |    4 ++--
 arch/arm64/kernel/psci.c         |    2 +-
 arch/arm64/kernel/suspend.c      |    6 +++---
 5 files changed, 9 insertions(+), 13 deletions(-)

--- a/arch/arm64/include/asm/cpuidle.h
+++ b/arch/arm64/include/asm/cpuidle.h
@@ -5,20 +5,16 @@
 
 #ifdef CONFIG_CPU_IDLE
 extern int arm_cpuidle_init(unsigned int cpu);
-extern int cpu_suspend(unsigned long arg);
+extern int arm_cpuidle_suspend(int index);
 #else
 static inline int arm_cpuidle_init(unsigned int cpu)
 {
        return -EOPNOTSUPP;
 }
 
-static inline int cpu_suspend(unsigned long arg)
+static inline int arm_cpuidle_suspend(int index)
 {
        return -EOPNOTSUPP;
 }
 #endif
-static inline int arm_cpuidle_suspend(int index)
-{
-       return cpu_suspend(index);
-}
 #endif
--- a/arch/arm64/include/asm/suspend.h
+++ b/arch/arm64/include/asm/suspend.h
@@ -21,6 +21,6 @@ struct sleep_save_sp {
        phys_addr_t save_ptr_stash_phys;
 };
 
-extern int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long));
+extern int cpu_suspend(unsigned long arg, int (*fn)(unsigned long));
 extern void cpu_resume(void);
 #endif
--- a/arch/arm64/kernel/cpuidle.c
+++ b/arch/arm64/kernel/cpuidle.c
@@ -37,7 +37,7 @@ int arm_cpuidle_init(unsigned int cpu)
  * Return: 0 on success, -EOPNOTSUPP if CPU suspend hook not initialized, CPU
  * operations back-end error code otherwise.
  */
-int cpu_suspend(unsigned long arg)
+int arm_cpuidle_suspend(int index)
 {
        int cpu = smp_processor_id();
 
@@ -47,5 +47,5 @@ int cpu_suspend(unsigned long arg)
         */
        if (!cpu_ops[cpu] || !cpu_ops[cpu]->cpu_suspend)
                return -EOPNOTSUPP;
-       return cpu_ops[cpu]->cpu_suspend(arg);
+       return cpu_ops[cpu]->cpu_suspend(index);
 }
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -546,7 +546,7 @@ static int __maybe_unused cpu_psci_cpu_s
        if (state[index - 1].type == PSCI_POWER_STATE_TYPE_STANDBY)
                ret = psci_ops.cpu_suspend(state[index - 1], 0);
        else
-               ret = __cpu_suspend(index, psci_suspend_finisher);
+               ret = cpu_suspend(index, psci_suspend_finisher);
 
        return ret;
 }
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -51,13 +51,13 @@ void __init cpu_suspend_set_dbg_restorer
 }
 
 /*
- * __cpu_suspend
+ * cpu_suspend
  *
  * arg: argument to pass to the finisher function
  * fn: finisher function pointer
  *
  */
-int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
+int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
 {
        struct mm_struct *mm = current->active_mm;
        int ret;
@@ -82,7 +82,7 @@ int __cpu_suspend(unsigned long arg, int
                 * We are resuming from reset with TTBR0_EL1 set to the
                 * idmap to enable the MMU; restore the active_mm mappings in
                 * TTBR0_EL1 unless the active_mm == &init_mm, in which case
-                * the thread entered __cpu_suspend with TTBR0_EL1 set to
+                * the thread entered cpu_suspend with TTBR0_EL1 set to
                 * reserved TTBR0 page tables and should be restored as such.
                 */
                if (mm == &init_mm)


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