igb: inline igb_maybe_stop_tx

igb_maybe_stop_tx() is extremely small and appears in several spots in
the tx hotpath. This change inlines the function for a possible
performance boost.

Signed-off-by: Nicholas Nunley <nicholasx.d.nunley@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index cba0115a6a5792e02979b7cf4f8f004a785954fb..a1fe581febc0baf95066cf3bd76b3d33a8c2ca8c 100644 (file)
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -3758,7 +3758,7 @@ static int __igb_maybe_stop_tx(struct igb_ring *tx_ring, int size)
        return 0;
 }
 
-static int igb_maybe_stop_tx(struct igb_ring *tx_ring, int size)
+static inline int igb_maybe_stop_tx(struct igb_ring *tx_ring, int size)
 {
        if (igb_desc_unused(tx_ring) >= size)
                return 0;