Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *	IPV6 GSO/GRO offload support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *	Linux INET6 implementation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *      IPV6 Extension Header GSO/GRO support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <net/protocol.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include "ip6_offload.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) static const struct net_offload rthdr_offload = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	.flags		=	INET6_PROTO_GSO_EXTHDR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static const struct net_offload dstopt_offload = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	.flags		=	INET6_PROTO_GSO_EXTHDR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) int __init ipv6_exthdrs_offload_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	ret = inet6_add_offload(&rthdr_offload, IPPROTO_ROUTING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	ret = inet6_add_offload(&dstopt_offload, IPPROTO_DSTOPTS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		goto out_rt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) out_rt:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	inet6_del_offload(&rthdr_offload, IPPROTO_ROUTING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) }