net: ethernet: ti: cpts: fix fifo read in cpts_find_ts
Now the call chain cpts_find_ts() |- cpts_fifo_read(cpts, CPTS_EV_PUSH) will stop reading CPTS FIFO if PUSH event is found. But this is not expected and CPTS FIFI should be completely drained here. This is most probably copy-paste error and it has no negative impact as CPTS_EV_PUSH should not be present in FIFO without TS_PUSH request and cpts_systim_read() and cpts_find_ts() synchronized by spin_lock. Correct above by calling cpts_fifo_read() with -1 parameter, so it will read all CPTS event from FIFO. Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -364,7 +364,7 @@ static u64 cpts_find_ts(struct cpts *cpts, struct sk_buff *skb, int ev_type)
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return 0;
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spin_lock_irqsave(&cpts->lock, flags);
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cpts_fifo_read(cpts, CPTS_EV_PUSH);
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cpts_fifo_read(cpts, -1);
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list_for_each_safe(this, next, &cpts->events) {
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event = list_entry(this, struct cpts_event, list);
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if (event_expired(event)) {
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