From: Timo Teräs <[email protected]>
Date: Tue, 7 Jul 2015 08:34:13 +0300
> Frag needed should be sent only if the inner header asked
> to not fragment. Currently fragmentation is broken if the
> tunnel has df set, but df was not asked in the original
> packet. The tunnel's df needs to be still checked to update
> internally the pmtu cache.
>
> Commit 23a3647bc4f93bac broke it, and this commit fixes
> the ipv4 df check back to the way it was.
>
> Fixes: 23a3647bc4f93bac ("ip_tunnels: Use skb-len to PMTU check.")
> Cc: Pravin B Shelar <[email protected]>
> Signed-off-by: Timo Teräs <[email protected]>
Applied and queued up for -stable, thanks.
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