arc: copy_thread(): rename 'arg' argument to 'kthread_arg'

The 'arg' argument to copy_thread() is only ever used when forking a new
kernel thread. Hence, rename it to 'kthread_arg' for clarity.

Signed-off-by: Alex Dowad <alexinbeijing@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index 98c00a2d4dd9a57f1c503ac2ebb6d63a3f1a76b4..7a8ea6ed2c5cac649fd7122cdc4ce92082f68105 100644 (file)
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -49,7 +49,10 @@ void arch_cpu_idle(void)
 
 asmlinkage void ret_from_fork(void);
 
-/* Layout of Child kernel mode stack as setup at the end of this function is
+/*
+ * Copy architecture-specific thread state
+ *
+ * Layout of Child kernel mode stack as setup at the end of this function is
  *
  * |     ...        |
  * |     ...        |
@@ -81,7 +84,7 @@ asmlinkage void ret_from_fork(void);
  * ------------------  <===== END of PAGE
  */
 int copy_thread(unsigned long clone_flags,
-               unsigned long usp, unsigned long arg,
+               unsigned long usp, unsigned long kthread_arg,
                struct task_struct *p)
 {
        struct pt_regs *c_regs;        /* child's pt_regs */
@@ -112,7 +115,7 @@ int copy_thread(unsigned long clone_flags,
        if (unlikely(p->flags & PF_KTHREAD)) {
                memset(c_regs, 0, sizeof(struct pt_regs));
 
-               c_callee->r13 = arg; /* argument to kernel thread */
+               c_callee->r13 = kthread_arg;
                c_callee->r14 = usp;  /* function */
 
                return 0;