From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 15 Dec 2011 13:55:01 +0000 (+0000)
Subject: ethtool: Centralise validation of ETHTOOL_{G, S}RXFHINDIR parameters
X-Git-Tag: v3.3-rc1~182^2~192
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7850f63f1620512631445b901ae11cd149e7375c;p=pandora-kernel.git

ethtool: Centralise validation of ETHTOOL_{G, S}RXFHINDIR parameters

Add a new ethtool operation (get_rxfh_indir_size) to get the
indirectional table size.  Use this to validate the user buffer size
before calling get_rxfh_indir or set_rxfh_indir.  Use get_rxnfc to get
the number of RX rings, and validate the contents of the new
indirection table before calling set_rxfh_indir.  Remove this
validation from drivers.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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