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Re: [PATCH v5] vfat: Deduplicate hex2bin()

From Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH v5] vfat: Deduplicate hex2bin()
Date 2017-07-31 21:40 +0200
Message-ID <u9oHM-1Rm-31@gated-at.bofh.it> (permalink)
References <u9k1s-7qO-3@gated-at.bofh.it> <u9nVn-1jR-15@gated-at.bofh.it>
Organization Intel Finland Oy

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On Tue, 2017-08-01 at 03:40 +0900, OGAWA Hirofumi wrote:
> Andy Shevchenko <andriy.shevchenko@linux.intel.com> writes:
> 
> > We may use hex2bin() instead of custom approach.
> > 
> > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> 
> 
> 

> > +				fill = hex2bin(hc, ip + 1, 2);
> > +				if (fill)
> > +					return fill;
> 
> This should not use random errno (in this case, it is -1 (EPERM)).

You perhaps missed the side note I put after --- line.
It reflects this change.

> 
> > +				*op++ = hc[1];
> > +				*op++ = hc[0];
> 
> Maybe, originally endian bug?

No problem reported. And as you noticed quite ago it is __be16
originally as it goes hi-lo.

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy

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[PATCH v5] vfat: Deduplicate hex2bin() Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-07-31 16:40 +0200
  [PATCH v5] vfat: Deduplicate hex2bin() OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - 2017-07-31 20:50 +0200
    Re: [PATCH v5] vfat: Deduplicate hex2bin() Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-07-31 21:40 +0200
      Re: [PATCH v5] vfat: Deduplicate hex2bin() OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - 2017-07-31 23:00 +0200
        Re: [PATCH v5] vfat: Deduplicate hex2bin() Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-08-01 15:00 +0200
  Re: [PATCH v5] vfat: Deduplicate hex2bin() OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - 2017-07-31 20:50 +0200
    Re: [PATCH v5] vfat: Deduplicate hex2bin() Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2017-07-31 21:40 +0200
      Re: [PATCH v5] vfat: Deduplicate hex2bin() OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> - 2017-07-31 23:00 +0200

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