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wifi: brcmfmac: Set DMA direction for msgbuf packet IDs

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brcmf_msgbuf_init_pktids() takes the DMA direction from its callers,
but never stores it in the packet ID state.  Since the state is zeroed,
pktids->direction remains DMA_BIDIRECTIONAL for both the TX and RX
packet ID pools.

All msgbuf packet ID map and unmap paths use pktids->direction.  As a
result, TX buffers requested with DMA_TO_DEVICE and RX buffers requested
with DMA_FROM_DEVICE are mapped and unmapped as DMA_BIDIRECTIONAL
instead.

Store the caller-provided direction when initializing the packet ID
state.

Signed-off-by: Can Peng <pengcan@kylinos.cn>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20260724092530.674624-1-pengcan@kylinos.cn
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Can Peng
2026-07-24 17:25:30 +08:00
committed by Johannes Berg
parent 32856f39fe
commit f0ba5fd51f
1 changed files with 1 additions and 0 deletions
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1
drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c
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@@ -310,6 +310,7 @@ brcmf_msgbuf_init_pktids(u32 nr_array_entries,
}
pktids->array = array;
pktids->array_size = nr_array_entries;
pktids->direction = direction;
return pktids;
}