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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>