5 /* High bits in flags field are unused. */
9 static inline bool tun_vnet_legacy_is_little_endian(unsigned int flags)  in tun_vnet_legacy_is_little_endian()  argument
12 		  (flags & TUN_VNET_BE);  in tun_vnet_legacy_is_little_endian()
17 static inline long tun_get_vnet_be(unsigned int flags, int __user *argp)  in tun_get_vnet_be()  argument
19 	int be = !!(flags & TUN_VNET_BE);  in tun_get_vnet_be()
30 static inline long tun_set_vnet_be(unsigned int *flags, int __user *argp)  in tun_set_vnet_be()  argument
41 		*flags |= TUN_VNET_BE;  in tun_set_vnet_be()
43 		*flags &= ~TUN_VNET_BE;  in tun_set_vnet_be()
48 static inline bool tun_vnet_is_little_endian(unsigned int flags)  in tun_vnet_is_little_endian()  argument
50 	return flags & TUN_VNET_LE || tun_vnet_legacy_is_little_endian(flags);  in tun_vnet_is_little_endian()
53 static inline u16 tun_vnet16_to_cpu(unsigned int flags, __virtio16 val)  in tun_vnet16_to_cpu()  argument
55 	return __virtio16_to_cpu(tun_vnet_is_little_endian(flags), val);  in tun_vnet16_to_cpu()
58 static inline __virtio16 cpu_to_tun_vnet16(unsigned int flags, u16 val)  in cpu_to_tun_vnet16()  argument
60 	return __cpu_to_virtio16(tun_vnet_is_little_endian(flags), val);  in cpu_to_tun_vnet16()
63 static inline long tun_vnet_ioctl(int *vnet_hdr_sz, unsigned int *flags,  in tun_vnet_ioctl()  argument
85 		s = !!(*flags & TUN_VNET_LE);  in tun_vnet_ioctl()
94 			*flags |= TUN_VNET_LE;  in tun_vnet_ioctl()
96 			*flags &= ~TUN_VNET_LE;  in tun_vnet_ioctl()
100 		return tun_get_vnet_be(*flags, sp);  in tun_vnet_ioctl()
103 		return tun_set_vnet_be(flags, sp);  in tun_vnet_ioctl()
110 static inline int tun_vnet_hdr_get(int sz, unsigned int flags,  in tun_vnet_hdr_get()  argument
122 	hdr_len = tun_vnet16_to_cpu(flags, hdr->hdr_len);  in tun_vnet_hdr_get()
124 	if (hdr->flags & VIRTIO_NET_HDR_F_NEEDS_CSUM) {  in tun_vnet_hdr_get()
125 …hdr_len = max(tun_vnet16_to_cpu(flags, hdr->csum_start) + tun_vnet16_to_cpu(flags, hdr->csum_offse…  in tun_vnet_hdr_get()
126 		hdr->hdr_len = cpu_to_tun_vnet16(flags, hdr_len);  in tun_vnet_hdr_get()
152 static inline int tun_vnet_hdr_to_skb(unsigned int flags, struct sk_buff *skb,  in tun_vnet_hdr_to_skb()  argument
155 	return virtio_net_hdr_to_skb(skb, hdr, tun_vnet_is_little_endian(flags));  in tun_vnet_hdr_to_skb()
158 static inline int tun_vnet_hdr_from_skb(unsigned int flags,  in tun_vnet_hdr_from_skb()  argument
166 				    tun_vnet_is_little_endian(flags), true,  in tun_vnet_hdr_from_skb()
172 				   sinfo->gso_type, tun_vnet16_to_cpu(flags, hdr->gso_size),  in tun_vnet_hdr_from_skb()
173 				   tun_vnet16_to_cpu(flags, hdr->hdr_len));  in tun_vnet_hdr_from_skb()
177 				       min(tun_vnet16_to_cpu(flags, hdr->hdr_len), 64), true);  in tun_vnet_hdr_from_skb()