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USB: uas: heed CAPACITY_HEURISTICS

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commit 335cbbd5762d5e5c67a8ddd6e6362c2aa42a328f upstream.

There is no need to ignore this flag. We should be as close
to storage in that regard as makes sense, so honor flags whose
cost is tiny.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20191114112758.32747-3-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oliver Neukum 2019-11-14 12:27:57 +01:00 • committed by Greg Kroah-Hartman
commit bf2e403d15
1 changed files with 6 additions and 0 deletions
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6
drivers/usb/storage/uas.c
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@ -837,6 +837,12 @@ static int uas_slave_configure(struct scsi_device *sdev)
if (devinfo->flags & US_FL_FIX_CAPACITY)
sdev->fix_capacity = 1;
/*
* in some cases we have to guess
*/
if (devinfo->flags & US_FL_CAPACITY_HEURISTICS)
sdev->guess_capacity = 1;
/*
* Some devices don't like MODE SENSE with page=0x3f,
* which is the command used for checking if a device