| commit | 59f4ff2ecff4cef36378928cec891785b402e80c | |
| author | Alan Stern <stern@rowland.harvard.edu> | |
| Tue, 29 Jul 2008 15:58:06 +0000 (29 11:58 -0400) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Thu, 14 Aug 2008 00:32:50 +0000 (13 17:32 -0700) | ||
| tree | b49428f1fd19f26c75ed3e2d6994ba72d3a3d190 | treesnapshot (tar.gz zip) |
| parent | 1a21175a615ed346e8043f5e9d60a672266b84b4 | commitdiff |
usb-storage: automatically recognize bad residues
This patch (as1119) will help to reduce the clutter of usb-storage's
unusual_devs file by automatically detecting some devices that need
the IGNORE_RESIDUE flag. The idea is that devices should never return
a non-zero residue for an INQUIRY or a READ CAPACITY command unless
they failed to transfer all the requested data. So if one of these
commands transfers a standard amount of data but there is a positive
residue, we know that the residue is bogus and we can set the flag.
This fixes the problems reported in Bugzilla #11125.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1119) will help to reduce the clutter of usb-storage's
unusual_devs file by automatically detecting some devices that need
the IGNORE_RESIDUE flag. The idea is that devices should never return
a non-zero residue for an INQUIRY or a READ CAPACITY command unless
they failed to transfer all the requested data. So if one of these
commands transfers a standard amount of data but there is a positive
residue, we know that the residue is bogus and we can set the flag.
This fixes the problems reported in Bugzilla #11125.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| drivers/usb/storage/transport.c | diffblobblamehistory |