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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2021-10-27 10:08:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-30 11:00:09 +0200 |
| commit | a0548b26901f082684ad1fb3ba397d2de3a1406a (patch) | |
| tree | e0cafcb9ed2aa176afd7cdd5190e32b678123397 | |
| parent | 9fff139aeb11186fd8e75860c959c86cb43ab2f6 (diff) | |
| download | linux-a0548b26901f082684ad1fb3ba397d2de3a1406a.tar.bz2 | |
usb: gadget: Mark USB_FSL_QE broken on 64-bit
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>
| -rw-r--r-- | drivers/usb/gadget/udc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
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 |