From: David Dillow <dillowda@ornl.gov>
Date: Thu, 17 Apr 2008 04:01:12 +0000 (-0700)
Subject: IB/srp: Enforce protocol limit on srp_sg_tablesize
X-Git-Tag: v2.6.26-rc1~1156^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e89a1946cfd906d12eff437d2a76b3aa7f5e731;p=pandora-kernel.git

IB/srp: Enforce protocol limit on srp_sg_tablesize

The current SRP initiator will allow unlimited s/g entries in the
indirect descriptors lists, but the entry count field in the SRP_CMD
request is 8 bits, so setting srp_sg_tablesize too large will open the
possibility of wrapping the count and generating invalid requests.

Clamp srp_sg_tablesize to the protocol limits to prevent surprises.

Reported by Martin W. Schlining III <mschlining@datadirectnet.com>.

Signed-off-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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