Re: [PATCH 8/8] ALSA: add new 32-bit layout for snd_pcm_mmap_status/control

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On Thu, 26 Apr 2018 13:31:17 +0200,
Arnd Bergmann wrote:
> 
> On Thu, Apr 26, 2018 at 1:25 PM, kbuild test robot <lkp@xxxxxxxxx> wrote:
> > Hi Arnd,
> >
> > I love your patch! Perhaps something to improve:
> >
> > [auto build test WARNING on v4.17-rc2]
> > [cannot apply to sound/for-next asoc/for-next arm-soc/for-next next-20180426]
> > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> >
> > url:    https://github.com/0day-ci/linux/commits/Baolin-Wang/Fix-year-2038-issue-for-sound-subsystem/20180426-010145
> > reproduce:
> >         # apt-get install sparse
> >         make ARCH=x86_64 allmodconfig
> >         make C=1 CF=-D__CHECK_ENDIAN__
> >
> >
> > sparse warnings: (new ones prefixed by >>)
> >
> >    sound/firewire/motu/motu-pcm.c:35:29: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:35:29: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:36:29: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:36:29: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:65:32: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:65:32: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:66:32: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:66:32: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:92:36: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:92:36: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:93:36: sparse: expression using sizeof(void)
> >    sound/firewire/motu/motu-pcm.c:93:36: sparse: expression using sizeof(void)
> >>> sound/firewire/motu/motu-pcm.c:204:50: sparse: restricted snd_pcm_state_t degrades to integer
> >    sound/firewire/motu/motu-pcm.c:223:50: sparse: restricted snd_pcm_state_t degrades to integer
> >    sound/firewire/motu/motu-pcm.c:238:50: sparse: restricted snd_pcm_state_t degrades to integer
> >    sound/firewire/motu/motu-pcm.c:254:50: sparse: restricted snd_pcm_state_t degrades to integer
> 
> From what I can tell, these are all existing driver problems, no idea why we now
> have one more warning than before.

The only marked one is new, and others are already present in the
current code.  You can ignore these sparse warnings.


thanks,

Takashi
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