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-rw-r--r--arch/mn10300/kernel/entry.S18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index 8e11f9f48999..0c631d34c8d7 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -55,6 +55,20 @@ ENTRY(ret_from_fork)
mov d0,(REG_D0,fp)
jmp syscall_exit
+ENTRY(ret_from_kernel_thread)
+ call schedule_tail[],0
+ mov (REG_D0,fp),d0
+ mov (REG_A0,fp),a0
+ calls (a0)
+ jmp sys_exit
+
+ENTRY(ret_from_kernel_execve)
+ add -12,d0 /* pt_regs -> frame */
+ mov d0,sp
+ GET_THREAD_INFO a2
+ clr d0
+ jmp syscall_exit
+
###############################################################################
#
# system call handler
@@ -94,6 +108,10 @@ restore_all:
###############################################################################
ALIGN
syscall_exit_work:
+ mov (REG_EPSW,fp),d0
+ and EPSW_nSL,d0
+ beq resume_kernel # returning to supervisor mode
+
btst _TIF_SYSCALL_TRACE,d2
beq work_pending
LOCAL_IRQ_ENABLE # could let syscall_trace_exit() call