linux-kernel - [PATCH 03/32v2] arc: copy_thread(): rename 'arg' argument to 'kthread

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Message-Id: <1427293521-13723-1-git-send-email-alexinbeijing@gmail.com>
Date:	Wed, 25 Mar 2015 16:25:21 +0200
From:	Alex Dowad <alexinbeijing@...il.com>
To:	Vineet.Gupta1@...opsys.com
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 03/32v2] 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@...il.com>
---
 arch/arc/kernel/process.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c
index fdd8971..cf366bd 100644
--- a/arch/arc/kernel/process.c
+++ b/arch/arc/kernel/process.c
@@ -49,7 +49,9 @@ 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 +83,7 @@ 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 */
@@ -110,9 +112,10 @@ int copy_thread(unsigned long clone_flags,
 	childksp[1] = (unsigned long)ret_from_fork; /* blink */
 
 	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;
-- 
2.0.0.GIT

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