[PATCH 03/32] arc: copy_thread(): rename 'arg' argument to 'kthread_arg'

Alex Dowad
2015-03-13T18:05:47Z

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@gmail.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)) {
+ /* kernel thread */
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