1 files changed, 8 insertions, 2 deletions

diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index bf85cc180d91..d295bd1e4996 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -107,8 +107,11 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
         return 0;
 }
 
+/*
+ * Copy architecture-specific thread state
+ */
 int copy_thread(unsigned long clone_flags, unsigned long usp,
-        unsigned long arg, struct task_struct *p)
+        unsigned long kthread_arg, struct task_struct *p)
 {
         struct thread_info *ti = task_thread_info(p);
         struct pt_regs *childregs, *regs = current_pt_regs();
@@ -123,11 +126,12 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
         childksp = (unsigned long) childregs;
         p->thread.cp0_status = read_c0_status() & ~(ST0_CU2|ST0_CU1);
         if (unlikely(p->flags & PF_KTHREAD)) {
+                /* kernel thread */
                 unsigned long status = p->thread.cp0_status;
                 memset(childregs, 0, sizeof(struct pt_regs));
                 ti->addr_limit = KERNEL_DS;
                 p->thread.reg16 = usp; /* fn */
-                p->thread.reg17 = arg;
+                p->thread.reg17 = kthread_arg;
                 p->thread.reg29 = childksp;
                 p->thread.reg31 = (unsigned long) ret_from_kernel_thread;
 #if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
@@ -139,6 +143,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
                 childregs->cp0_status = status;
                 return 0;
         }
+
+        /* user thread */
         *childregs = *regs;
         childregs->regs[7] = 0; /* Clear error flag */
         childregs->regs[2] = 0; /* Child gets zero as return value */