From: Geert Uytterhoeven geert@linux-m68k.org
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 | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index 8c614bb86c66..69394dc1cdfb 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -330,6 +330,7 @@ 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