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Commit e985d27f authored by Skylar Chang's avatar Skylar Chang
Browse files

msm: ipa: fix split packet handling 



Fix packet handling in case packet received from IPA hardware
is scattered across multiple buffers.

Change-Id: I4935ecb8eaa438d259c1c27a66f62c78f874c9ee
CRs-Fixed: 1097420
Acked-by: default avatarAdy Abraham <adya@qti.qualcomm.com>
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
parent 11a4004d

drivers/platform/msm/ipa/ipa_v2/ipa_dp.c

+4 −2
Original line number Original line Diff line number Diff line
@@ -2325,6 +2325,7 @@ static int ipa_lan_rx_pyld_hdlr(struct sk_buff *skb, 
	unsigned int used = *(unsigned int *)skb->cb;

	unsigned int used = *(unsigned int *)skb->cb;

	unsigned int used_align = ALIGN(used, 32);

	unsigned int used_align = ALIGN(used, 32);

	unsigned long unused = IPA_GENERIC_RX_BUFF_BASE_SZ - used;

	unsigned long unused = IPA_GENERIC_RX_BUFF_BASE_SZ - used;

	u32 skb2_len;





	IPA_DUMP_BUFF(skb->data, 0, skb->len);

	IPA_DUMP_BUFF(skb->data, 0, skb->len);
@@ -2508,8 +2509,9 @@ static int ipa_lan_rx_pyld_hdlr(struct sk_buff *skb, 
				sys->drop_packet = true;

				sys->drop_packet = true;

			}

			}





			skb2 = ipa_skb_copy_for_client(skb,

			skb2_len = status->pkt_len + IPA_PKT_STATUS_SIZE;

				status->pkt_len + IPA_PKT_STATUS_SIZE);

			skb2_len = min(skb2_len, skb->len);

			skb2 = ipa_skb_copy_for_client(skb, skb2_len);

			if (likely(skb2)) {

			if (likely(skb2)) {

				if (skb->len < len + IPA_PKT_STATUS_SIZE) {

				if (skb->len < len + IPA_PKT_STATUS_SIZE) {

					IPADBG("SPL skb len %d len %d\n",

					IPADBG("SPL skb len %d len %d\n",