From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 3 Sep 2013 16:24:02 +0000 (+0200)
Subject: net: tcp_probe: adapt tbuf size for recent changes
X-Git-Tag: v3.12-rc1~132^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cc8c6c1b21c9b1e0f1e89428c07c7c52435cba0c;p=pandora-kernel.git

net: tcp_probe: adapt tbuf size for recent changes

With recent changes in tcp_probe module (e.g. f925d0a62d ("net: tcp_probe:
add IPv6 support")) we also need to take into account that tbuf needs to
be updated as format string will be further expanded. tbuf sits on the stack
in tcpprobe_read() function that is invoked when user space reads procfs
file /proc/net/tcpprobe, hence not fast path as in jtcp_rcv_established().
Having a size similarly as in sctp_probe module of 256 bytes is fully
sufficient for that, we need theoretical maximum of 252 bytes otherwise we
could get truncated.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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