]> git.ipfire.org Git - thirdparty/kernel/stable.git/commit
usb: gadget: Mark USB_FSL_QE broken on 64-bit
authorGeert Uytterhoeven <geert@linux-m68k.org>
Wed, 27 Oct 2021 08:08:49 +0000 (10:08 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 12 Nov 2021 12:17:07 +0000 (13:17 +0100)
commitdda81f7e3496ff0197d80b7d80c454ed6b5daa1a
tree1cde08255a33a9833f096b3ab87cb57adc5e7e27
parentbda41654b6e0c125a624ca35d6d20beb8015b5d0
usb: gadget: Mark USB_FSL_QE broken on 64-bit

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@nxp.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20211027080849.3276289-1-geert@linux-m68k.org
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/gadget/udc/Kconfig