diff options
Diffstat (limited to 'net/mpls/internal.h')
| -rw-r--r-- | net/mpls/internal.h | 53 |
1 files changed, 27 insertions, 26 deletions
diff --git a/net/mpls/internal.h b/net/mpls/internal.h index 768a302879b4..80cb5bbcd946 100644 --- a/net/mpls/internal.h +++ b/net/mpls/internal.h @@ -33,7 +33,7 @@ struct mpls_dev { #define MPLS_INC_STATS_LEN(mdev, len, pkts_field, bytes_field) \ do { \ - __typeof__(*(mdev)->stats) *ptr = \ + TYPEOF_UNQUAL(*(mdev)->stats) *ptr = \ raw_cpu_ptr((mdev)->stats); \ local_bh_disable(); \ u64_stats_update_begin(&ptr->syncp); \ @@ -45,7 +45,7 @@ struct mpls_dev { #define MPLS_INC_STATS(mdev, field) \ do { \ - __typeof__(*(mdev)->stats) *ptr = \ + TYPEOF_UNQUAL(*(mdev)->stats) *ptr = \ raw_cpu_ptr((mdev)->stats); \ local_bh_disable(); \ u64_stats_update_begin(&ptr->syncp); \ @@ -87,7 +87,8 @@ enum mpls_payload_type { }; struct mpls_nh { /* next hop label forwarding entry */ - struct net_device __rcu *nh_dev; + struct net_device *nh_dev; + netdevice_tracker nh_dev_tracker; /* nh_flags is accessed under RCU in the packet path; it is * modified handling netdev events with rtnl lock held @@ -98,7 +99,7 @@ struct mpls_nh { /* next hop label forwarding entry */ u8 nh_via_table; u8 nh_reserved1; - u32 nh_label[0]; + u32 nh_label[]; }; /* offset of via from beginning of mpls_nh */ @@ -154,35 +155,23 @@ struct mpls_route { /* next hop label forwarding entry */ u8 rt_nh_size; u8 rt_via_offset; u8 rt_reserved1; - struct mpls_nh rt_nh[0]; + struct mpls_nh rt_nh[]; }; #define for_nexthops(rt) { \ - int nhsel; struct mpls_nh *nh; u8 *__nh; \ - for (nhsel = 0, nh = (rt)->rt_nh, __nh = (u8 *)((rt)->rt_nh); \ + int nhsel; const struct mpls_nh *nh; \ + for (nhsel = 0, nh = (rt)->rt_nh; \ nhsel < (rt)->rt_nhn; \ - __nh += rt->rt_nh_size, nh = (struct mpls_nh *)__nh, nhsel++) + nh = (void *)nh + (rt)->rt_nh_size, nhsel++) #define change_nexthops(rt) { \ - int nhsel; struct mpls_nh *nh; u8 *__nh; \ - for (nhsel = 0, nh = (struct mpls_nh *)((rt)->rt_nh), \ - __nh = (u8 *)((rt)->rt_nh); \ + int nhsel; struct mpls_nh *nh; \ + for (nhsel = 0, nh = (rt)->rt_nh; \ nhsel < (rt)->rt_nhn; \ - __nh += rt->rt_nh_size, nh = (struct mpls_nh *)__nh, nhsel++) + nh = (void *)nh + (rt)->rt_nh_size, nhsel++) #define endfor_nexthops(rt) } -static inline struct mpls_shim_hdr mpls_entry_encode(u32 label, unsigned ttl, unsigned tc, bool bos) -{ - struct mpls_shim_hdr result; - result.label_stack_entry = - cpu_to_be32((label << MPLS_LS_LABEL_SHIFT) | - (tc << MPLS_LS_TC_SHIFT) | - (bos ? (1 << MPLS_LS_S_SHIFT) : 0) | - (ttl << MPLS_LS_TTL_SHIFT)); - return result; -} - static inline struct mpls_entry_decoded mpls_entry_decode(struct mpls_shim_hdr *hdr) { struct mpls_entry_decoded result; @@ -196,9 +185,20 @@ static inline struct mpls_entry_decoded mpls_entry_decode(struct mpls_shim_hdr * return result; } -static inline struct mpls_dev *mpls_dev_get(const struct net_device *dev) +#define mpls_dereference(net, p) \ + rcu_dereference_protected( \ + (p), \ + lockdep_is_held(&(net)->mpls.platform_mutex)) + +static inline struct mpls_dev *mpls_dev_rcu(const struct net_device *dev) +{ + return rcu_dereference(dev->mpls_ptr); +} + +static inline struct mpls_dev *mpls_dev_get(const struct net *net, + const struct net_device *dev) { - return rcu_dereference_rtnl(dev->mpls_ptr); + return mpls_dereference(net, dev->mpls_ptr); } int nla_put_labels(struct sk_buff *skb, int attrtype, u8 labels, @@ -208,7 +208,8 @@ int nla_get_labels(const struct nlattr *nla, u8 max_labels, u8 *labels, bool mpls_output_possible(const struct net_device *dev); unsigned int mpls_dev_mtu(const struct net_device *dev); bool mpls_pkt_too_big(const struct sk_buff *skb, unsigned int mtu); -void mpls_stats_inc_outucastpkts(struct net_device *dev, +void mpls_stats_inc_outucastpkts(struct net *net, + struct net_device *dev, const struct sk_buff *skb); #endif /* MPLS_INTERNAL_H */ |