~hc/RK356X_SDK_RELEASE.git

..	..	@@ -613,10 +613,10 @@
613	613	}
614	614
615	615	headroom += LL_RESERVED_SPACE(rt->dst.dev) + rt->dst.header_len;
616		- if (headroom > dev->needed_headroom)
617		- dev->needed_headroom = headroom;
	616	+ if (headroom > READ_ONCE(dev->needed_headroom))
	617	+ WRITE_ONCE(dev->needed_headroom, headroom);
618	618
619		- if (skb_cow_head(skb, dev->needed_headroom)) {
	619	+ if (skb_cow_head(skb, READ_ONCE(dev->needed_headroom))) {
620	620	ip_rt_put(rt);
621	621	goto tx_dropped;
622	622	}
..	..	@@ -797,10 +797,10 @@
797	797
798	798	max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr)
799	799	+ rt->dst.header_len + ip_encap_hlen(&tunnel->encap);
800		- if (max_headroom > dev->needed_headroom)
801		- dev->needed_headroom = max_headroom;
	800	+ if (max_headroom > READ_ONCE(dev->needed_headroom))
	801	+ WRITE_ONCE(dev->needed_headroom, max_headroom);
802	802
803		- if (skb_cow_head(skb, dev->needed_headroom)) {
	803	+ if (skb_cow_head(skb, READ_ONCE(dev->needed_headroom))) {
804	804	ip_rt_put(rt);
805	805	dev->stats.tx_dropped++;
806	806	kfree_skb(skb);