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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-27 08:02:50 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-27 08:02:50 +0100 |
| commit | 37022410f4a3cc11614626a58cd08bcf8ea529e9 (patch) | |
| tree | 60e0a996385b1d5865dc5264ff130cf9e852abb4 /include/net | |
| parent | aad1577ab950d1ad46e0dd0915bfbaf9fa9160e4 (diff) | |
| parent | dcb6fa37fd7bc9c3d2b066329b0d27dedf8becaa (diff) | |
Merge 6.18-rc3 into driver-core-next
We need the driver core fixes in here as well to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/ip_tunnels.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index 4314a97702ea..ecae35512b9b 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -611,6 +611,21 @@ struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md, int skb_tunnel_check_pmtu(struct sk_buff *skb, struct dst_entry *encap_dst, int headroom, bool reply); +static inline void ip_tunnel_adj_headroom(struct net_device *dev, + unsigned int headroom) +{ + /* we must cap headroom to some upperlimit, else pskb_expand_head + * will overflow header offsets in skb_headers_offset_update(). + */ + const unsigned int max_allowed = 512; + + if (headroom > max_allowed) + headroom = max_allowed; + + if (headroom > READ_ONCE(dev->needed_headroom)) + WRITE_ONCE(dev->needed_headroom, headroom); +} + int iptunnel_handle_offloads(struct sk_buff *skb, int gso_type_mask); static inline int iptunnel_pull_offloads(struct sk_buff *skb) |