Re: [PATCH v3 1/3] lib/string: introduce ascii2utf16le() helper

From: Alan Stern
Date: Mon Feb 06 2017 - 10:40:58 EST


On Mon, 6 Feb 2017, Richard Leitner wrote:

> On 02/06/2017 04:12 PM, Alan Stern wrote:
> > On Mon, 6 Feb 2017, Richard Leitner wrote:
> >
> >> For USB string descriptors we need to convert ASCII strings to UTF16-LE.
> >> Therefore make a simple helper function (based on ascii2desc from
> >> drivers/usb/core/hcd.c) for that purpose.
> >
> > You know, we already have utf8s_to_utf16s() in fs/nls/nls_base.c.
> > Maybe it doesn't do exactly what you want, but it should be pretty
> > close. Adding another helper function to do essentially the same thing
> > seems unnecessary.
>
> Thanks for that pointer. I totally agree with you.
>
> So it would be OK to include linux/nls.h and use utf8s_to_utf16s() in
> drivers/usb/{core/hcd.c,misc/usb251xb.c}?

Well, we already include linux/nls.h in drivers/usb/core/message.c and
a few files under drivers/usb/gadget. Putting it in a few more places
shouldn't hurt.

Alan Stern