This is a note to let you know that I've just added the patch titled usb: gadget: Mark USB_FSL_QE broken on 64-bit 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-gadget-mark-usb_fsl_qe-broken-on-64-bit.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 a0548b26901f082684ad1fb3ba397d2de3a1406a Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Date: Wed, 27 Oct 2021 10:08:49 +0200 Subject: usb: gadget: Mark USB_FSL_QE broken on 64-bit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> commit a0548b26901f082684ad1fb3ba397d2de3a1406a upstream. On 64-bit: drivers/usb/gadget/udc/fsl_qe_udc.c: In function ‘qe_ep0_rx’: drivers/usb/gadget/udc/fsl_qe_udc.c:842:13: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast] 842 | vaddr = (u32)phys_to_virt(in_be32(&bd->buf)); | ^ In file included from drivers/usb/gadget/udc/fsl_qe_udc.c:41: drivers/usb/gadget/udc/fsl_qe_udc.c:843:28: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] 843 | frame_set_data(pframe, (u8 *)vaddr); | ^ The driver assumes physical and virtual addresses are 32-bit, hence it cannot work on 64-bit platforms. Acked-by: Li Yang <leoyang.li@xxxxxxx> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20211027080849.3276289-1-geert@xxxxxxxxxxxxxx Cc: stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/gadget/udc/Kconfig | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -328,6 +328,7 @@ config USB_AMD5536UDC config USB_FSL_QE tristate "Freescale QE/CPM USB Device Controller" depends on FSL_SOC && (QUICC_ENGINE || CPM) + depends on !64BIT || BROKEN help Some of Freescale PowerPC processors have a Full Speed QE/CPM2 USB controller, which support device mode with 4 Patches currently in stable-queue which might be from geert@xxxxxxxxxxxxxx are queue-4.19/usb-gadget-mark-usb_fsl_qe-broken-on-64-bit.patch