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wifi: rtw89: process TX wait skbs for USB via C2H handler

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TX wait skbs need to be completed when they are done.  PCIe part does this
inside rtw89_pci_tx_status() during RPP processing.  Other HCIs use a
mechanism based on C2H firmware messages.

Store TX wait skbs inside TX report queue so that it'll be possible to
identify completed items inside the C2H handler.  Try to do this as
similar to PCIe path as possible.  When the corresponding TX wait skb is
found inside TX report queue, unlink it from there and call
rtw89_core_tx_wait_complete() to mark the completion.

If the callee waiting for the completion has already timed out, the TX
wait skb is placed into TX wait list (like PCIe part does).

It's important that during HCI reset all pending TX wait frames should be
completed inside hci.ops->reset method before calling
rtw89_tx_wait_list_clear().

Found by Linux Verification Center (linuxtesting.org).

Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20251104135720.321110-11-pchelkin@ispras.ru
This commit is contained in:
Fedor Pchelkin 2025-11-04 16:57:17 +03:00 • committed by Ping-Ke Shih
commit d5da3d9fb0
4 changed files with 20 additions and 7 deletions
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