[PATCH net-next 6/8] qed: No need for LL2 frags indication

[Yuval Mintz]

This is a legacy leftover; There's no current flow where 'frags_mapped'
would be set.

Signed-off-by: Yuval Mintz <yuval.mi...@cavium.com>
---
 drivers/net/ethernet/qlogic/qed/qed_ll2.c | 31 ++++++++-----------------------
 1 file changed, 8 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c 
b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index b222b2b..2a68fb9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -73,7 +73,6 @@ struct qed_cb_ll2_info {
        int rx_cnt;
        u32 rx_size;
        u8 handle;
-       bool frags_mapped;
 
        /* Lock protecting LL2 buffer lists in sleepless context */
        spinlock_t lock;
@@ -108,12 +107,6 @@ static void qed_ll2b_complete_tx_packet(void *cxt,
                cdev->ll2->cbs->tx_cb(cdev->ll2->cb_cookie, skb,
                                      b_last_fragment);
 
-       if (cdev->ll2->frags_mapped)
-               /* Case where mapped frags were received, need to
-                * free skb with nr_frags marked as 0
-                */
-               skb_shinfo(skb)->nr_frags = 0;
-
        dev_kfree_skb_any(skb);
 }
 
@@ -2100,7 +2093,6 @@ static int qed_ll2_start(struct qed_dev *cdev, struct 
qed_ll2_params *params)
        spin_lock_init(&cdev->ll2->lock);
        cdev->ll2->rx_size = NET_SKB_PAD + ETH_HLEN +
                             L1_CACHE_BYTES + params->mtu;
-       cdev->ll2->frags_mapped = params->frags_mapped;
 
        /*Allocate memory for LL2 */
        DP_INFO(cdev, "Allocating LL2 buffers of size %08x bytes\n",
@@ -2313,21 +2305,14 @@ static int qed_ll2_start_xmit(struct qed_dev *cdev, 
struct sk_buff *skb)
 
        for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
                frag = &skb_shinfo(skb)->frags[i];
-               if (!cdev->ll2->frags_mapped) {
-                       mapping = skb_frag_dma_map(&cdev->pdev->dev, frag, 0,
-                                                  skb_frag_size(frag),
-                                                  DMA_TO_DEVICE);
-
-                       if (unlikely(dma_mapping_error(&cdev->pdev->dev,
-                                                      mapping))) {
-                               DP_NOTICE(cdev,
-                                         "Unable to map frag - dropping 
packet\n");
-                               rc = -ENOMEM;
-                               goto err;
-                       }
-               } else {
-                       mapping = page_to_phys(skb_frag_page(frag)) |
-                           frag->page_offset;
+
+               mapping = skb_frag_dma_map(&cdev->pdev->dev, frag, 0,
+                                          skb_frag_size(frag), DMA_TO_DEVICE);
+
+               if (unlikely(dma_mapping_error(&cdev->pdev->dev, mapping))) {
+                       DP_NOTICE(cdev,
+                                 "Unable to map frag - dropping packet\n");
+                       goto err;
                }
 
                rc = qed_ll2_set_fragment_of_tx_packet(QED_LEADING_HWFN(cdev),
-- 
2.9.4