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Commit 27b85ef3 authored by Chaitanya Pratapa's avatar Chaitanya Pratapa Committed by Jagadeesh Ponduru
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msm: ipa: Fix to free up all pending EOB pages 



Make changes to free up all pending EOB pages when SKB allocation
used to handle EOT is failed as we could end up in a frag
overflow.

Change-Id: I80ae84d00d1bbf2cf89e97261d2fe8c3742eda04
Signed-off-by: default avatarChaitanya Pratapa <cpratapa@codeaurora.org>
Signed-off-by: default avatarJagadeesh Ponduru <jponduru@codeaurora.org>
parent bcd36e88

drivers/platform/msm/ipa/ipa_v3/ipa_dp.c

+14 −10
Original line number Diff line number Diff line
@@ -3658,8 +3658,11 @@ static struct sk_buff *handle_page_completion(struct gsi_chan_xfer_notify 
		sys->ep->client == IPA_CLIENT_APPS_LAN_CONS) {

		rx_skb = alloc_skb(0, GFP_ATOMIC);

		if (unlikely(!rx_skb)) {

			IPAERR("skb alloc failure\n");

			list_del(&rx_pkt->link);

			IPAERR("skb alloc failure, free all pending pages\n");

			list_for_each_entry_safe(rx_pkt, tmp, head, link) {

				rx_page = rx_pkt->page_data;

				size = rx_pkt->data_len;

				list_del_init(&rx_pkt->link);

				if (!rx_page.is_tmp_alloc) {

					init_page_count(rx_page.page);

				} else {
@@ -3669,6 +3672,7 @@ static struct sk_buff *handle_page_completion(struct gsi_chan_xfer_notify 
								IPA_WAN_PAGE_ORDER);

				}

				rx_pkt->sys->free_rx_wrapper(rx_pkt);

			}

			IPA_STATS_INC_CNT(ipa3_ctx->stats.rx_page_drop_cnt);

			return NULL;

		}