From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sun, 23 Jul 2006 20:18:00 +0000 (+0200)
Subject: ieee1394: sbp2: more checks of status block
X-Git-Tag: v2.6.19-rc1~644^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6065772d54a3b994b9b5d3df6413ec6a1c8c2ec1;p=pandora-kernel.git

ieee1394: sbp2: more checks of status block

 - Add checks for the (very unlikely) cases that the target writes too
   little or too much status data or writes unsolicited status.
 - Indicate that these and similar conditions are unlikely().
 - Check the 'resp' and 'sbp_status' fields for possible failure status.
 - Slightly optimize access macros for the status block bitfields.
 - Unify a few related log messages.

TODO:  Check if 'src'==1, then withhold the respective ORB from reuse
until status for any subsequent ORB was received.  This is an old bug
whose fix requires more complex command queue handling.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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