6.1-stable review patch. If anyone has any objections, please let me know.
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From: Tasos Sahanidis tasos@tasossah.com
commit 772685c14743ad565bb271041ad3c262298cd6fc upstream.
This flash drive reports write protect during the first mode sense.
In the past this was not an issue as the kernel called revalidate twice, thus asking the device for its write protect status twice, with write protect being disabled in the second mode sense.
However, since commit 1e029397d12f ("scsi: sd: Reorganize DIF/DIX code to avoid calling revalidate twice") that is no longer the case, thus the device shows up read only.
[490891.289495] sd 12:0:0:0: [sdl] Write Protect is on [490891.289497] sd 12:0:0:0: [sdl] Mode Sense: 2b 00 80 08
This does not appear to be a timing issue, as enabling the usbcore quirk USB_QUIRK_DELAY_INIT has no effect on write protect.
Fixes: 1e029397d12f ("scsi: sd: Reorganize DIF/DIX code to avoid calling revalidate twice") Cc: stable stable@kernel.org Signed-off-by: Tasos Sahanidis tasos@tasossah.com Acked-by: Alan Stern stern@rowland.harvard.edu Reviewed-by: Martin K. Petersen martin.petersen@oracle.com Link: https://lore.kernel.org/r/20231207134441.298131-1-tasos@tasossah.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/storage/unusual_devs.h | 11 +++++++++++ 1 file changed, 11 insertions(+)
--- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1306,6 +1306,17 @@ UNUSUAL_DEV( 0x090c, 0x6000, 0x0100, 0x US_FL_INITIAL_READ10 ),
/* + * Patch by Tasos Sahanidis tasos@tasossah.com + * This flash drive always shows up with write protect enabled + * during the first mode sense. + */ +UNUSUAL_DEV(0x0951, 0x1697, 0x0100, 0x0100, + "Kingston", + "DT Ultimate G3", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NO_WP_DETECT), + +/* * This Pentax still camera is not conformant * to the USB storage specification: - * - It does not like the INQUIRY command. So we must handle this command