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mt76: dma: do not report truncated frames to mac80211

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If the fragment is discarded in mt76_add_fragment() since shared_info
frag array is full, discard truncated frames and do not forward them to
mac80211.

Signed-off-by: Lorenzo Bianconi <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2021-02-14 11:27:25 +01:00
committed by Felix Fietkau
parent 2659f6c6ea
commit b09cc86445
1 changed files with 7 additions and 4 deletions
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dma.c
+7 -4
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@@ -515,13 +515,13 @@ mt76_add_fragment(struct mt76_dev *dev, struct mt76_queue *q, void *data,
{
struct sk_buff *skb = q->rx_head;
struct skb_shared_info *shinfo = skb_shinfo(skb);
int nr_frags = shinfo->nr_frags;
if (shinfo->nr_frags < ARRAY_SIZE(shinfo->frags)) {
if (nr_frags < ARRAY_SIZE(shinfo->frags)) {
struct page *page = virt_to_head_page(data);
int offset = data - page_address(page) + q->buf_offset;
skb_add_rx_frag(skb, shinfo->nr_frags, page, offset, len,
q->buf_size);
skb_add_rx_frag(skb, nr_frags, page, offset, len, q->buf_size);
} else {
skb_free_frag(data);
}
@@ -530,7 +530,10 @@ mt76_add_fragment(struct mt76_dev *dev, struct mt76_queue *q, void *data,
return;
q->rx_head = NULL;
dev->drv->rx_skb(dev, q - dev->q_rx, skb);
if (nr_frags < ARRAY_SIZE(shinfo->frags))
dev->drv->rx_skb(dev, q - dev->q_rx, skb);
else
dev_kfree_skb(skb);
}
static int