Re: [PATCH] usb: renesas_usbhs: fix __le16 warnings

[Geert Uytterhoeven]

On Tue, Oct 15, 2019 at 5:50 PM Ben Dooks (Codethink)
<ben.dooks@xxxxxxxxxxxxxxx> wrote:
> Fix the warnings generated by casting to/from __le16 without
> using the correct functions.
>
> Fixes the following sparse warnings:
>
> drivers/usb/renesas_usbhs/common.c:165:25: warning: incorrect type in assignment (different base types)
> drivers/usb/renesas_usbhs/common.c:165:25:    expected restricted __le16 [usertype] wValue
> drivers/usb/renesas_usbhs/common.c:165:25:    got unsigned short
> drivers/usb/renesas_usbhs/common.c:166:25: warning: incorrect type in assignment (different base types)
> drivers/usb/renesas_usbhs/common.c:166:25:    expected restricted __le16 [usertype] wIndex
> drivers/usb/renesas_usbhs/common.c:166:25:    got unsigned short
> drivers/usb/renesas_usbhs/common.c:167:25: warning: incorrect type in assignment (different base types)
> drivers/usb/renesas_usbhs/common.c:167:25:    expected restricted __le16 [usertype] wLength
> drivers/usb/renesas_usbhs/common.c:167:25:    got unsigned short
> drivers/usb/renesas_usbhs/common.c:173:39: warning: incorrect type in argument 3 (different base types)
> drivers/usb/renesas_usbhs/common.c:173:39:    expected unsigned short [usertype] data
> drivers/usb/renesas_usbhs/common.c:173:39:    got restricted __le16 [usertype] wValue
> drivers/usb/renesas_usbhs/common.c:174:39: warning: incorrect type in argument 3 (different base types)
> drivers/usb/renesas_usbhs/common.c:174:39:    expected unsigned short [usertype] data
> drivers/usb/renesas_usbhs/common.c:174:39:    got restricted __le16 [usertype] wIndex
> drivers/usb/renesas_usbhs/common.c:175:39: warning: incorrect type in argument 3 (different base types)
> drivers/usb/renesas_usbhs/common.c:175:39:    expected unsigned short [usertype] data
>
> Note. I belive this to be correct, and should be a no-op on arm.

Yep, the affected platforms are little-endian.

> Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>

Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds