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wifi: mac80211: export ieee80211_purge_tx_queue() for drivers

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commit 53bc1b73b67836ac9867f93dee7a443986b4a94f upstream.

Drivers need to purge TX SKB when stopping. Using skb_queue_purge() can't
report TX status to mac80211, causing ieee80211_free_ack_frame() warns
"Have pending ack frames!". Export ieee80211_purge_tx_queue() for drivers
to not have to reimplement it.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20240822014255.10211-1-pkshih@realtek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ping-Ke Shih
2024-08-22 09:42:54 +08:00
committed by Greg Kroah-Hartman
parent 4e773aea05
commit ff5a5dae30
3 changed files with 14 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
include/net/mac80211.h
View File

@@ -2956,6 +2956,19 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
*/
void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb);
/**
* ieee80211_purge_tx_queue - purge TX skb queue
* @hw: the hardware
* @skbs: the skbs
*
* Free a set of transmit skbs. Use this function when device is going to stop
* but some transmit skbs without TX status are still queued.
* This function does not take the list lock and the caller must hold the
* relevant locks to use it.
*/
void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
struct sk_buff_head *skbs);
/**
* DOC: Hardware crypto acceleration
*

2
net/mac80211/ieee80211_i.h
View File

@@ -1984,8 +1984,6 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb,
u32 info_flags,
u32 ctrl_flags,
u64 *cookie);
void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
struct sk_buff_head *skbs);
struct sk_buff *
ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, u32 info_flags);

1
net/mac80211/status.c
View File

@@ -1294,3 +1294,4 @@ void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
while ((skb = __skb_dequeue(skbs)))
ieee80211_free_txskb(hw, skb);
}
EXPORT_SYMBOL(ieee80211_purge_tx_queue);