Merge "msm: ipa: Fix to free up all pending EOB pages"

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

@@ -3938,21 +3938,25 @@ 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");
+			IPAERR("skb alloc failure, free all pending pages\n");
-			list_del_init(&rx_pkt->link);
+			list_for_each_entry_safe(rx_pkt, tmp, head, link) {
-			if (!rx_page.is_tmp_alloc) {
+				rx_page = rx_pkt->page_data;
-				init_page_count(rx_page.page);
+				size = rx_pkt->data_len;
-				spin_lock_bh(&rx_pkt->sys->spinlock);
+				list_del_init(&rx_pkt->link);
-				/* Add the element to head. */
+				if (!rx_page.is_tmp_alloc) {
-				list_add(&rx_pkt->link,
+					init_page_count(rx_page.page);
-					&rx_pkt->sys->page_recycle_repl->page_repl_head);
+					spin_lock_bh(&rx_pkt->sys->spinlock);
-				spin_unlock_bh(&rx_pkt->sys->spinlock);
+					/* Add the element to head. */
-			} else {
+					list_add(&rx_pkt->link,
-				dma_unmap_page(ipa3_ctx->pdev, rx_page.dma_addr,
+						&rx_pkt->sys->page_recycle_repl->page_repl_head);
-					rx_pkt->len, DMA_FROM_DEVICE);
+					spin_unlock_bh(&rx_pkt->sys->spinlock);
-				__free_pages(rx_pkt->page_data.page, sys->page_order);
+				} else {
+					dma_unmap_page(ipa3_ctx->pdev, rx_page.dma_addr,
+						rx_pkt->len, DMA_FROM_DEVICE);
+					__free_pages(rx_pkt->page_data.page, sys->page_order);
+				}
+				rx_pkt->sys->free_rx_wrapper(rx_pkt);
 			}
-			rx_pkt->sys->free_rx_wrapper(rx_pkt);
 			IPA_STATS_INC_CNT(ipa3_ctx->stats.rx_page_drop_cnt);
 			return NULL;
 		}