diff options
| author | Maxime Ripard <[email protected]> | 2021-04-26 12:03:09 +0000 |
|---|---|---|
| committer | Maxime Ripard <[email protected]> | 2021-04-26 12:03:09 +0000 |
| commit | 355b60296143a090039211c5f0e1463f84aab65a (patch) | |
| tree | b74d4ef2aea66252ea9cf77c847de6c6e72a02b7 /net/core/dst.c | |
| parent | drm: Remove DRM_KMS_FB_HELPER Kconfig option (diff) | |
| parent | Merge tag 'drm-misc-next-fixes-2021-04-22' of git://anongit.freedesktop.org/d... (diff) | |
| download | kernel-355b60296143a090039211c5f0e1463f84aab65a.tar.gz kernel-355b60296143a090039211c5f0e1463f84aab65a.zip | |
Merge drm/drm-next into drm-misc-next
Christian needs some patches from drm/next
Signed-off-by: Maxime Ripard <[email protected]>
Diffstat (limited to 'net/core/dst.c')
| -rw-r--r-- | net/core/dst.c | 59 |
1 files changed, 42 insertions, 17 deletions
diff --git a/net/core/dst.c b/net/core/dst.c index 0c01bd8d9d81..fb3bcba87744 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -237,37 +237,62 @@ void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old) } EXPORT_SYMBOL(__dst_destroy_metrics_generic); -static struct dst_ops md_dst_ops = { - .family = AF_UNSPEC, -}; +struct dst_entry *dst_blackhole_check(struct dst_entry *dst, u32 cookie) +{ + return NULL; +} -static int dst_md_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb) +u32 *dst_blackhole_cow_metrics(struct dst_entry *dst, unsigned long old) { - WARN_ONCE(1, "Attempting to call output on metadata dst\n"); - kfree_skb(skb); - return 0; + return NULL; } -static int dst_md_discard(struct sk_buff *skb) +struct neighbour *dst_blackhole_neigh_lookup(const struct dst_entry *dst, + struct sk_buff *skb, + const void *daddr) +{ + return NULL; +} + +void dst_blackhole_update_pmtu(struct dst_entry *dst, struct sock *sk, + struct sk_buff *skb, u32 mtu, + bool confirm_neigh) { - WARN_ONCE(1, "Attempting to call input on metadata dst\n"); - kfree_skb(skb); - return 0; } +EXPORT_SYMBOL_GPL(dst_blackhole_update_pmtu); + +void dst_blackhole_redirect(struct dst_entry *dst, struct sock *sk, + struct sk_buff *skb) +{ +} +EXPORT_SYMBOL_GPL(dst_blackhole_redirect); + +unsigned int dst_blackhole_mtu(const struct dst_entry *dst) +{ + unsigned int mtu = dst_metric_raw(dst, RTAX_MTU); + + return mtu ? : dst->dev->mtu; +} +EXPORT_SYMBOL_GPL(dst_blackhole_mtu); + +static struct dst_ops dst_blackhole_ops = { + .family = AF_UNSPEC, + .neigh_lookup = dst_blackhole_neigh_lookup, + .check = dst_blackhole_check, + .cow_metrics = dst_blackhole_cow_metrics, + .update_pmtu = dst_blackhole_update_pmtu, + .redirect = dst_blackhole_redirect, + .mtu = dst_blackhole_mtu, +}; static void __metadata_dst_init(struct metadata_dst *md_dst, enum metadata_type type, u8 optslen) - { struct dst_entry *dst; dst = &md_dst->dst; - dst_init(dst, &md_dst_ops, NULL, 1, DST_OBSOLETE_NONE, + dst_init(dst, &dst_blackhole_ops, NULL, 1, DST_OBSOLETE_NONE, DST_METADATA | DST_NOCOUNT); - - dst->input = dst_md_discard; - dst->output = dst_md_discard_out; - memset(dst + 1, 0, sizeof(*md_dst) + optslen - sizeof(*dst)); md_dst->type = type; } |
