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USB: uas: heed CAPACITY_HEURISTICS

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commit 335cbbd576 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 Chris
parent 2ca5daac0b
commit 6db80b6024
1 changed files with 6 additions and 0 deletions
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6
drivers/usb/storage/uas.c
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@@ -844,6 +844,12 @@ 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