diff options
| author | Michał Mirosław | 2018-11-10 19:58:36 +0100 |
|---|---|---|
| committer | David S. Miller | 2018-11-16 19:25:29 -0800 |
| commit | 0c4b2d370514cb4f3454dd3b18f031d2651fab73 (patch) | |
| tree | 83c96b0c5bbf7c311fcee1ee1949c253d093fe57 /include | |
| parent | 4b50d23179737e4b5f5f16e4bb58bedcf437addc (diff) | |
net: remove VLAN_TAG_PRESENT
Replace VLAN_TAG_PRESENT with single bit flag and free up
VLAN.CFI overload. Now VLAN.CFI is visible in networking stack
and can be passed around intact.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/if_vlan.h | 11 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 16 |
2 files changed, 15 insertions, 12 deletions
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 1be5230921b5..7a541eadf78e 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -66,7 +66,6 @@ static inline struct vlan_ethhdr *vlan_eth_hdr(const struct sk_buff *skb) #define VLAN_PRIO_MASK 0xe000 /* Priority Code Point */ #define VLAN_PRIO_SHIFT 13 #define VLAN_CFI_MASK 0x1000 /* Canonical Format Indicator */ -#define VLAN_TAG_PRESENT VLAN_CFI_MASK #define VLAN_VID_MASK 0x0fff /* VLAN Identifier */ #define VLAN_N_VID 4096 @@ -78,8 +77,8 @@ static inline bool is_vlan_dev(const struct net_device *dev) return dev->priv_flags & IFF_802_1Q_VLAN; } -#define skb_vlan_tag_present(__skb) ((__skb)->vlan_tci & VLAN_TAG_PRESENT) -#define skb_vlan_tag_get(__skb) ((__skb)->vlan_tci & ~VLAN_TAG_PRESENT) +#define skb_vlan_tag_present(__skb) ((__skb)->vlan_present) +#define skb_vlan_tag_get(__skb) ((__skb)->vlan_tci) #define skb_vlan_tag_get_id(__skb) ((__skb)->vlan_tci & VLAN_VID_MASK) #define skb_vlan_tag_get_prio(__skb) (((__skb)->vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT) @@ -480,7 +479,7 @@ static inline struct sk_buff *vlan_insert_tag_set_proto(struct sk_buff *skb, */ static inline void __vlan_hwaccel_clear_tag(struct sk_buff *skb) { - skb->vlan_tci = 0; + skb->vlan_present = 0; } /** @@ -492,6 +491,7 @@ static inline void __vlan_hwaccel_clear_tag(struct sk_buff *skb) */ static inline void __vlan_hwaccel_copy_tag(struct sk_buff *dst, const struct sk_buff *src) { + dst->vlan_present = src->vlan_present; dst->vlan_proto = src->vlan_proto; dst->vlan_tci = src->vlan_tci; } @@ -526,7 +526,8 @@ static inline void __vlan_hwaccel_put_tag(struct sk_buff *skb, __be16 vlan_proto, u16 vlan_tci) { skb->vlan_proto = vlan_proto; - skb->vlan_tci = VLAN_TAG_PRESENT | vlan_tci; + skb->vlan_tci = vlan_tci; + skb->vlan_present = 1; } /** diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 99f38779332c..b9aa0d1b21cf 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -777,6 +777,14 @@ struct sk_buff { __u8 encap_hdr_csum:1; __u8 csum_valid:1; +#ifdef __BIG_ENDIAN_BITFIELD +#define PKT_VLAN_PRESENT_BIT 7 +#else +#define PKT_VLAN_PRESENT_BIT 0 +#endif +#define PKT_VLAN_PRESENT_OFFSET() offsetof(struct sk_buff, __pkt_vlan_present_offset) + __u8 __pkt_vlan_present_offset[0]; + __u8 vlan_present:1; __u8 csum_complete_sw:1; __u8 csum_level:2; __u8 csum_not_inet:1; @@ -784,8 +792,8 @@ struct sk_buff { #ifdef CONFIG_IPV6_NDISC_NODETYPE __u8 ndisc_nodetype:2; #endif - __u8 ipvs_property:1; + __u8 ipvs_property:1; __u8 inner_protocol_type:1; __u8 remcsum_offload:1; #ifdef CONFIG_NET_SWITCHDEV @@ -816,12 +824,6 @@ struct sk_buff { __u32 priority; int skb_iif; __u32 hash; -#define PKT_VLAN_PRESENT_BIT 4 // CFI (12-th bit) in TCI -#ifdef __BIG_ENDIAN -#define PKT_VLAN_PRESENT_OFFSET() offsetof(struct sk_buff, vlan_tci) -#else -#define PKT_VLAN_PRESENT_OFFSET() (offsetof(struct sk_buff, vlan_tci) + 1) -#endif __be16 vlan_proto; __u16 vlan_tci; #if defined(CONFIG_NET_RX_BUSY_POLL) || defined(CONFIG_XPS) |