i40e: refactor tail_bump check
This patch refactors tail bump check.
Change-ID: Ide0e19171d67d90cb2b06b8dcd4fa791ae120160
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index df7ecc9..f8d6623 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2840,10 +2840,9 @@
I40E_TXD_QW1_CMD_SHIFT);
/* notify HW of packet */
- if (!tail_bump)
+ if (!tail_bump) {
prefetchw(tx_desc + 1);
-
- if (tail_bump) {
+ } else {
/* Force memory writes to complete before letting h/w
* know there are new descriptors to fetch. (Only
* applicable for weak-ordered memory model archs,
@@ -2852,7 +2851,6 @@
wmb();
writel(i, tx_ring->tail);
}
-
return;
dma_error: