Commit c6482ce7 authored Jul 09, 2014 by Arun Kumar Neelakantam

soc: qcom: bam_dmux: Restore the skb to orginal in write_done



The client skb buffers are updated with bam_dmux transport header
and padding information during bam_dmux write which alters the actual
skb buffers data and length send by the clients.

Remove the bam_dmux header and padding length from skb before notifying
client in the write_done callback.

CRs-Fixed: 689227
Change-Id: If33bd2f7addba8da83742b9337d84ec7b52db525
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>

parent 9d075f70

drivers/soc/qcom/bam_dmux.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -839,6 +839,11 @@ static void bam_mux_write_done(struct work_struct *work)
		kfree(info);
		hdr = (struct bam_mux_hdr *)skb->data;
		DBG_INC_WRITE_CNT(skb->len);
		/* Restore skb for client */
		skb_pull(skb, sizeof(*hdr));
		if (hdr->pad_len)
		skb_trim(skb, skb->len - hdr->pad_len);

		event_data = (unsigned long)(skb);
		spin_lock_irqsave(&bam_ch[hdr->ch_id].lock, flags);
		bam_ch[hdr->ch_id].num_tx_pkts--;