ERROR: "__aeabi_uldivmod" [drivers/pinctrl/pinctrl-single.ko] undefined!

[Linus Walleij]

On Fri, Jan 11, 2013 at 4:00 PM, Russell King - ARM Linux
<linux at arm.linux.org.uk> wrote:

> The above error happens in builds including pinctrl-single - the reason
> is this, where resource_size_t may be 64-bit.
>
>                 gpio->range.pin_base = (r.start - pcs->res->start) / mux_bytes;
>                 gpio->range.npins = (r.end - r.start) / mux_bytes + 1;
>
> This leads to a 64-bit division by an extended 64-bit, resulting in the
> call to our (unimplemented) 64-bit-by-64-bit division routines.
>
> This needs fixing - you probably want to cast the difference down to an
> 'unsigned' first, and also maybe check that it does fit in an unsigned
> too?

Agreed, Haojian can you provide a tested patch for this?
I think you added this code...

Tony: please check and ACK.

Yours,
Linus Walleij