[RFT] Major snd_hda rewrite

[Alexander Motin]

On 01/14/12 15:48, Alexander Best wrote:
> On Thu Jan 12 12, Rainer Hurling wrote:
>> On 12.01.2012 12:18 (UTC+1), Alexander Motin wrote:
>>> On 01/12/12 12:52, Gary Jennejohn wrote:
>>>> On Wed, 11 Jan 2012 21:33:17 +0200
>>>> Alexander Motin<mav at FreeBSD.org>  wrote:
>>>>> I would like request for testing of my work on further HDA sound driver
>>>>> improvement.
>>>>
>>>> [big snip]
>>>>
>>>>> Patch can be found here:
>>>>> http://people.freebsd.org/~mav/hda.rewrite.patch
>>>>>
>>>>> Patch was generated for 10-CURRENT, but should apply to fresh 9-STABLE
>>>>> and 8-STABLE branches also.
>>>>
>>>> The patch doesn't apply cleanly to r230008; hdac.c.rej is 15661 bytes
>>>> in size (mostly the section which deletes all the manufacturer-specific
>>>> defines at the top of the file).
>>>
>>> That is probably because of $FreeBSD$ macro resolution. Here is version
>>> with present value from 10-CURRENT SVN (sources from CVS or STABLE will
>>> need that patch line modified respectively) and some minor additional
>>> improvements like CODEC ODs and some more sysctls:
>>> http://people.freebsd.org/~mav/hda.rewrite2.patch
>
> maybe you could try silencencing these clang warnings?
>
> /usr/subversion-src/sys/dev/sound/pci/hda/hdaa.c:5707:25: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
>                  snprintf(buf, buflen, chans = "4.0");
>                                        ^~~~~~~~~~~~~
> /usr/subversion-src/sys/dev/sound/pci/hda/hdaa.c:5709:25: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
>                  snprintf(buf, buflen, chans = "5.1");
>                                        ^~~~~~~~~~~~~
> /usr/subversion-src/sys/dev/sound/pci/hda/hdaa.c:5711:25: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
>                  snprintf(buf, buflen, chans = "7.1");
>                                       ^~~~~~~~~~~~~~
> /usr/subversion-src/sys/dev/sound/pci/hda/hdacc.c:563:52: warning: if statement has empty body [-Wempty-body]
>          if ((child = codec->streams[dir][stream]) != NULL);
>                                                            ^
> 4 warning generated.
>
> ..i'll report how the changes interact with my system later on.

Thank you! That variable is not even used now, so I'll just remove that 
assignment. I've passed the code through the clang static analyzer at 
some point, but probably I've introduced that later.

-- 
Alexander Motin