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mt76: mt7915: rework mt7915_tm_set_tx_len()

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Rework mt7915_tm_set_tx_len() with mt76_testmode_alloc_skb() to support
larger packet based on a longer tx_time.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Shayne Chen 2021-04-12 13:39:53 +08:00 committed by Felix Fietkau
parent 2601dda8fa
commit e6678f9dc5
1 changed files with 5 additions and 17 deletions
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22
drivers/net/wireless/mediatek/mt76/mt7915/testmode.c
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@ -257,13 +257,13 @@ mt7915_tm_set_tx_len(struct mt7915_phy *phy, u32 tx_time)
{
struct mt76_phy *mphy = phy->mt76;
struct mt76_testmode_data *td = &mphy->test;
struct sk_buff *old = td->tx_skb, *new;
struct ieee80211_supported_band *sband;
struct rate_info rate = {};
u16 flags = 0, tx_len;
u32 bitrate;
int ret;
if (!tx_time || !old)
if (!tx_time)
return 0;
rate.mcs = td->tx_rate_idx;
@ -323,21 +323,9 @@ mt7915_tm_set_tx_len(struct mt7915_phy *phy, u32 tx_time)
bitrate = cfg80211_calculate_bitrate(&rate);
tx_len = bitrate * tx_time / 10 / 8;
if (tx_len < sizeof(struct ieee80211_hdr))
tx_len = sizeof(struct ieee80211_hdr);
else if (tx_len > IEEE80211_MAX_FRAME_LEN)
tx_len = IEEE80211_MAX_FRAME_LEN;
new = alloc_skb(tx_len, GFP_KERNEL);
if (!new)
return -ENOMEM;
skb_copy_header(new, old);
__skb_put_zero(new, tx_len);
memcpy(new->data, old->data, sizeof(struct ieee80211_hdr));
dev_kfree_skb(old);
td->tx_skb = new;
ret = mt76_testmode_alloc_skb(phy->mt76, tx_len);
if (ret)
return ret;
return 0;
}