linux-kernel - [PATCH 14/32] m32r: copy_thread(): rename 'arg' argument to 'kthread

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Message-Id: <1426270496-26362-4-git-send-email-alexinbeijing@gmail.com>
Date:	Fri, 13 Mar 2015 20:14:37 +0200
From:	Alex Dowad <alexinbeijing@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH 14/32] m32r: 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 (and consistency
with do_fork() and other arch-specific implementations of copy_thread()).

Signed-off-by: Alex Dowad <alexinbeijing@...il.com>
---
 arch/m32r/kernel/process.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index e69221d..6d5edf2 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -128,21 +128,25 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
 	return 0; /* Task didn't use the fpu at all. */
 }
 
+/*
+ * Copy architecture-specific thread state
+ */
 int copy_thread(unsigned long clone_flags, unsigned long spu,
-	unsigned long arg, struct task_struct *tsk)
+	unsigned long kthread_arg, struct task_struct *tsk)
 {
 	struct pt_regs *childregs = task_pt_regs(tsk);
 	extern void ret_from_fork(void);
 	extern void ret_from_kernel_thread(void);
 
 	if (unlikely(tsk->flags & PF_KTHREAD)) {
+		/* kernel thread */
 		memset(childregs, 0, sizeof(struct pt_regs));
 		childregs->psw = M32R_PSW_BIE;
 		childregs->r1 = spu;	/* fn */
-		childregs->r0 = arg;
+		childregs->r0 = kthread_arg;
 		tsk->thread.lr = (unsigned long)ret_from_kernel_thread;
 	} else {
-		/* Copy registers */
+		/* user thread: copy registers */
 		*childregs = *current_pt_regs();
 		if (spu)
 			childregs->spu = spu;
-- 
2.0.0.GIT

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