net: pktgen: don't abuse current->state in pktgen_thread_worker()
Commit 1fbe4b46caca "net: pktgen: kill the Wait for kthread_stop
code in pktgen_thread_worker()" removed (in particular) the final
__set_current_state(TASK_RUNNING) and I didn't notice the previous
set_current_state(TASK_INTERRUPTIBLE). This triggers the warning
in __might_sleep() after return.
Afaics, we can simply remove both set_current_state()'s, and we
could do this a long ago right after ef87979c273a2 "pktgen: better
scheduler friendliness" which changed pktgen_thread_worker() to
use wait_event_interruptible_timeout().
Reported-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 1ebdf1c..1cbd209 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3514,8 +3514,6 @@
set_freezable();
- __set_current_state(TASK_RUNNING);
-
while (!kthread_should_stop()) {
pkt_dev = next_to_run(t);
@@ -3560,7 +3558,6 @@
try_to_freeze();
}
- set_current_state(TASK_INTERRUPTIBLE);
pr_debug("%s stopping all device\n", t->tsk->comm);
pktgen_stop(t);