From f4a504c61fe635d442f79957da48cacbff3238e8 Mon Sep 17 00:00:00 2001 From: James Buren Date: Tue, 30 Nov 2021 16:33:01 +0800 Subject: [PATCH] usb-storage: Add compatibility quirk flags for iODD 2531/2541 stable inclusion from stable-5.10.79 commit 42681b90c4db8bf29fc2cc93789ec093bb209296 bugzilla: 185793 https://gitee.com/openeuler/kernel/issues/I4K65C Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=42681b90c4db8bf29fc2cc93789ec093bb209296 -------------------------------- commit 05c8f1b67e67dcd786ae3fe44492bbc617b4bd12 upstream. These drive enclosures have firmware bugs that make it impossible to mount a new virtual ISO image after Linux ejects the old one if the device is locked by Linux. Windows bypasses this problem by the fact that they do not lock the device. Add a quirk to disable device locking for these drive enclosures. Acked-by: Alan Stern Signed-off-by: James Buren Cc: stable Link: https://lore.kernel.org/r/20211014015504.2695089-1-braewoods+lkml@braewoods.net Signed-off-by: Greg Kroah-Hartman Signed-off-by: Chen Jun Acked-by: Weilong Chen Signed-off-by: Bin Li Signed-off-by: Zheng Zengkai --- drivers/usb/storage/unusual_devs.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index c6b3fcf90180..29191d33c0e3 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -406,6 +406,16 @@ UNUSUAL_DEV( 0x04b8, 0x0602, 0x0110, 0x0110, "785EPX Storage", USB_SC_SCSI, USB_PR_BULK, NULL, US_FL_SINGLE_LUN), +/* + * Reported by James Buren + * Virtual ISOs cannot be remounted if ejected while the device is locked + * Disable locking to mimic Windows behavior that bypasses the issue + */ +UNUSUAL_DEV( 0x04c5, 0x2028, 0x0001, 0x0001, + "iODD", + "2531/2541", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE), + /* * Not sure who reported this originally but * Pavel Machek reported that the extra US_FL_SINGLE_LUN -- GitLab