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From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
	linux-kernel@vger.kernel.org,
	Denys Vlasenko <vda.linux@googlemail.com>
Subject: Re: [PATCHv2] fat: don't use custom hex_to_bin()
Date: Fri, 30 Sep 2011 00:19:07 +0900	[thread overview]
Message-ID: <87aa9n8jh0.fsf@devron.myhome.or.jp> (raw)
In-Reply-To: <1317308040.2676.124.camel@smile> (Andy Shevchenko's message of "Thu, 29 Sep 2011 17:54:00 +0300")

Andy Shevchenko <andriy.shevchenko@linux.intel.com> writes:

> On Thu, 2011-09-29 at 23:43 +0900, OGAWA Hirofumi wrote: 
>> I guess you just did copy&paste. "u8 uc[2];" part should be before
>> statement as C90.
>> 
>> I.e.
>> 
>> 				if (escape && (*ip == ':')) {
>>                                 	u8 uc[2];
>> 
>> 					if (i > len - 5)
>> 						return -EINVAL;
>> 
>> 					if (hex2bin(uc, ip + 1, 2) < 0)
>> 						return -EINVAL;
>> 					*(wchar_t *)op = uc[0] << 8 | uc[1];
> Actually, why do not use 
> *(wchar_t *)op++ = ... 
> instead of additional op+=2?

IMO, the reason would be, complex oneliner is possible to mistake. Well,
anyway, it doesn't work. It actually increments 1 byte as "char *", not
2 bytes as "wchar_t *".

>> 
>> 					op += 2;
>> 					ip += 5;
>> 					i += 5;
>> 				} else {
>> 
>> This should be work?
> Oh, my bad! So much minor mistakes last time. Really need vacation.

-- 
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>

  reply	other threads:[~2011-09-29 15:19 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-23 11:32 [PATCH] alsa: 6fire: don't use custom hex_to_bin() Andy Shevchenko
2011-09-23 11:32 ` [PATCH] fat: " Andy Shevchenko
2011-09-23 12:05   ` Denys Vlasenko
2011-09-23 12:11     ` Andy Shevchenko
2011-09-27 11:48     ` [PATCHv2] " Andy Shevchenko
2011-09-27 17:19       ` OGAWA Hirofumi
2011-09-27 17:52         ` Andy Shevchenko
2011-09-27 18:06         ` Andy Shevchenko
2011-09-27 23:15           ` OGAWA Hirofumi
2011-09-29 13:07             ` Andy Shevchenko
2011-09-29 14:43               ` OGAWA Hirofumi
2011-09-29 14:54                 ` Andy Shevchenko
2011-09-29 15:19                   ` OGAWA Hirofumi [this message]
2011-09-29 15:10                 ` [PATCHv4] " Andy Shevchenko
2011-09-29 15:37                   ` Joe Perches
2011-09-29 18:27                     ` OGAWA Hirofumi
2011-09-29 18:41                       ` Joe Perches
2011-09-29 19:35                         ` OGAWA Hirofumi
2011-09-29 13:15             ` [PATCHv3] " Andy Shevchenko
2011-09-29 14:51               ` OGAWA Hirofumi
2011-09-23 13:22 ` [PATCH] alsa: 6fire: " Takashi Iwai

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