From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 17 May 2012 19:52:20 +0000 (+0100)
Subject: sfc: Refactor struct efx_tx_buffer to use a flags field
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~47^2~277^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7668ff9c2ad7d354655e23afa836a92d54d2ea63;p=pandora-kernel.git

sfc: Refactor struct efx_tx_buffer to use a flags field

Add a flags field to struct efx_tx_buffer, replacing the
continuation and map_single booleans.

Since a single descriptor cannot be both a TSO header and the last
descriptor for an skb, unionise efx_tx_buffer::{skb,tsoh} and add
flags for validity of these fields.

Clear all flags in free buffers (whereas previously the continuation
flag would be set).

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
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