This is a note to let you know that I've just added the patch titled
wifi: mt76: remove unused error path in mt76_connac_tx_complete_skb
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-mt76-remove-unused-error-path-in-mt76_connac_tx.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4512c1c09808bb0efb2751c2c317a6a4ceb15db7
Author: Felix Fietkau <nbd@xxxxxxxx>
Date: Mon Sep 11 15:15:18 2023 +0200
wifi: mt76: remove unused error path in mt76_connac_tx_complete_skb
[ Upstream commit 832f42699791e7a90e81c15da0ce886b4f8300b8 ]
The error handling code was added in order to allow tx enqueue to fail after
calling .tx_prepare_skb. Since this can no longer happen, the error handling
code is unused.
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Stable-dep-of: bde2e77f7626 ("wifi: mt76: mt7996: set correct wcid in txp")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c
index dc8f4e157eb29..6ca7b494c2c26 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -330,9 +330,6 @@ mt76_dma_tx_cleanup_idx(struct mt76_dev *dev, struct mt76_queue *q, int idx,
if (e->txwi == DMA_DUMMY_DATA)
e->txwi = NULL;
- if (e->skb == DMA_DUMMY_DATA)
- e->skb = NULL;
-
*prev_e = *e;
memset(e, 0, sizeof(*e));
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
index 0019890fdb784..fbb1181c58ff3 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/pci_mac.c
@@ -106,7 +106,7 @@ int mt7615_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
else
mt76_connac_write_hw_txp(mdev, tx_info, txp, id);
- tx_info->skb = DMA_DUMMY_DATA;
+ tx_info->skb = NULL;
return 0;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
index ee5177fd6ddea..73db9e14db06c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mac.c
@@ -151,23 +151,6 @@ void mt76_connac_tx_complete_skb(struct mt76_dev *mdev,
return;
}
- /* error path */
- if (e->skb == DMA_DUMMY_DATA) {
- struct mt76_connac_txp_common *txp;
- struct mt76_txwi_cache *t;
- u16 token;
-
- txp = mt76_connac_txwi_to_txp(mdev, e->txwi);
- if (is_mt76_fw_txp(mdev))
- token = le16_to_cpu(txp->fw.token);
- else
- token = le16_to_cpu(txp->hw.msdu_id[0]) &
- ~MT_MSDU_ID_VALID;
-
- t = mt76_token_put(mdev, token);
- e->skb = t ? t->skb : NULL;
- }
-
if (e->skb)
mt76_tx_complete_skb(mdev, e->wcid, e->skb);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
index b8b0c0fda7522..2222fb9aa103e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c
@@ -809,7 +809,7 @@ int mt7915_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
txp->rept_wds_wcid = cpu_to_le16(wcid->idx);
else
txp->rept_wds_wcid = cpu_to_le16(0x3ff);
- tx_info->skb = DMA_DUMMY_DATA;
+ tx_info->skb = NULL;
/* pass partial skb header to fw */
tx_info->buf[1].len = MT_CT_PARSE_LEN;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
index e7a995e7e70a3..c866144ff0613 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c
@@ -48,7 +48,7 @@ int mt7921e_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
memset(txp, 0, sizeof(struct mt76_connac_hw_txp));
mt76_connac_write_hw_txp(mdev, tx_info, txp, id);
- tx_info->skb = DMA_DUMMY_DATA;
+ tx_info->skb = NULL;
return 0;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
index ac8759febe485..0eebf915df265 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mac.c
@@ -995,7 +995,7 @@ int mt7996_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
txp->fw.rept_wds_wcid = cpu_to_le16(wcid->idx);
else
txp->fw.rept_wds_wcid = cpu_to_le16(0xfff);
- tx_info->skb = DMA_DUMMY_DATA;
+ tx_info->skb = NULL;
/* pass partial skb header to fw */
tx_info->buf[1].len = MT_CT_PARSE_LEN;
