This is a note to let you know that I've just added the patch titled USB: Add NO_LPM quirk for Kingston flash drive to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-add-no_lpm-quirk-for-kingston-flash-drive.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From afaa2e745a246c5ab95103a65b1ed00101e1bc63 Mon Sep 17 00:00:00 2001 From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Date: Mon, 2 Nov 2020 09:58:21 -0500 Subject: USB: Add NO_LPM quirk for Kingston flash drive From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> commit afaa2e745a246c5ab95103a65b1ed00101e1bc63 upstream. In Bugzilla #208257, Julien Humbert reports that a 32-GB Kingston flash drive spontaneously disconnects and reconnects, over and over. Testing revealed that disabling Link Power Management for the drive fixed the problem. This patch adds a quirk entry for that drive to turn off LPM permanently. CC: Hans de Goede <jwrdegoede@xxxxxxxxxxxxxxxxx> CC: <stable@xxxxxxxxxxxxxxx> Reported-and-tested-by: Julien Humbert <julroy67@xxxxxxxxx> Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20201102145821.GA1478741@xxxxxxxxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -378,6 +378,9 @@ static const struct usb_device_id usb_qu { USB_DEVICE(0x0926, 0x3333), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS }, + /* Kingston DataTraveler 3.0 */ + { USB_DEVICE(0x0951, 0x1666), .driver_info = USB_QUIRK_NO_LPM }, + /* X-Rite/Gretag-Macbeth Eye-One Pro display colorimeter */ { USB_DEVICE(0x0971, 0x2000), .driver_info = USB_QUIRK_NO_SET_INTF }, Patches currently in stable-queue which might be from stern@xxxxxxxxxxxxxxxxxxx are queue-4.19/usb-add-no_lpm-quirk-for-kingston-flash-drive.patch