Merge "net: qrtr: use alloc_skb_with_frags() in rx path"

// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2015, Sony Mobile Communications Inc.

 * Copyright (c) 2013, 2018 The Linux Foundation. All rights reserved.

 * Copyright (c) 2013, 2018-2019 The Linux Foundation. All rights reserved.

 */

#include <linux/module.h>

#include <linux/netlink.h>

 */

static void qrtr_tx_resume(struct qrtr_node *node, struct sk_buff *skb)

{

	struct qrtr_ctrl_pkt *pkt = (struct qrtr_ctrl_pkt *)skb->data;

	u64 remote_node = le32_to_cpu(pkt->client.node);

	u32 remote_port = le32_to_cpu(pkt->client.port);

	struct qrtr_ctrl_pkt pkt = {0,};

	struct qrtr_tx_flow *flow;

	unsigned long key;

	u64 remote_node;

	u32 remote_port;

	skb_copy_bits(skb, 0, &pkt, sizeof(pkt));

	remote_node = le32_to_cpu(pkt.client.node);

	remote_port = le32_to_cpu(pkt.client.port);

	key = remote_node << 32 | remote_port;

	flow = radix_tree_lookup(&node->qrtr_tx_flow, key);

	unsigned int size;

	unsigned int ver;

	size_t hdrlen;

	int errcode;

	if (len & 3)

		return -EINVAL;

	skb = netdev_alloc_skb(NULL, len);

	skb = alloc_skb_with_frags(sizeof(*v1), len, 0, &errcode, GFP_ATOMIC);

	if (!skb)

		return -ENOMEM;

	skb_reserve(skb, sizeof(*v1));

	cb = (struct qrtr_cb *)skb->cb;

	/* Version field in v1 is little endian, so this works for both cases */

	    cb->type != QRTR_TYPE_RESUME_TX)

		goto err;

	skb_put_data(skb, data + hdrlen, size);

	skb->data_len = size;

	skb->len = size;

	skb_store_bits(skb, 0, data + hdrlen, size);

	qrtr_node_assign(node, cb->src_node);