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
@@ -265,6 +265,7 @@ 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
