Commit 21949ab7 authored by hayeswang's avatar hayeswang Committed by David S. Miller
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r8152: check tx agg list before spin lock



Check tx agg list before spin lock to avoid doing spin lock every
times.
Signed-off-by: default avatarHayes Wang <hayeswang@realtek.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 2685d410
...@@ -1266,6 +1266,9 @@ static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp) ...@@ -1266,6 +1266,9 @@ static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
struct tx_agg *agg = NULL; struct tx_agg *agg = NULL;
unsigned long flags; unsigned long flags;
if (list_empty(&tp->tx_free))
return NULL;
spin_lock_irqsave(&tp->tx_lock, flags); spin_lock_irqsave(&tp->tx_lock, flags);
if (!list_empty(&tp->tx_free)) { if (!list_empty(&tp->tx_free)) {
struct list_head *cursor; struct list_head *cursor;
......
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