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From: kbuild test robot <lkp@intel.com>
Cc: alsa-devel@alsa-project.org, tiwai@suse.com, jeeja.kp@intel.com,
	elfring@users.sourceforge.net, linux-kernel@vger.kernel.org,
	vinod.koul@intel.com, guneshwor.o.singh@intel.com,
	mingo@kernel.org, gudishax.kranthikumar@intel.com,
	arvind.yadav.cs@gmail.com, subhransu.s.prusty@intel.com,
	dan.carpenter@oracle.com, arnd@arndb.de, hardik.t.shah@intel.com,
	fabf@skynet.be, broonie@kernel.org, naveen.m@intel.com,
	baolin.wang@linaro.org, lgirdwood@gmail.com,
	o-takashi@sakamocchi.jp, kbuild-all@01.org, bhumirks@gmail.com
Subject: Re: [PATCH 1/8] ALSA: Replace timespec with timespec64
Date: Thu, 26 Apr 2018 16:15:32 +0800	[thread overview]
Message-ID: <201804261345.1lsWsCDl%fengguang.wu@intel.com> (raw)
In-Reply-To: <7373ade7cb5a8d6a5fca07e78cf992ba7372bd7f.1524570852.git.baolin.wang@linaro.org>

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Hi Baolin,

I love your patch! Yet something to improve:

[auto build test ERROR on v4.17-rc2]
[also build test ERROR on next-20180424]
[cannot apply to sound/for-next asoc/for-next arm-soc/for-next]
[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
config: sh-ecovec24_defconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sh 

Note: the linux-review/Baolin-Wang/Fix-year-2038-issue-for-sound-subsystem/20180426-010145 HEAD 53cdcc389f07bdd923be240cdb746a97de063301 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   sound/core/pcm_lib.c: In function 'update_audio_tstamp':
>> sound/core/pcm_lib.c:256:54: error: passing argument 2 of 'timespec_equal' from incompatible pointer type [-Werror=incompatible-pointer-types]
     if (!timespec_equal(&runtime->status->audio_tstamp, audio_tstamp)) {
                                                         ^~~~~~~~~~~~
   In file included from include/linux/time.h:73:0,
                    from include/linux/ktime.h:24,
                    from include/linux/timer.h:6,
                    from include/linux/workqueue.h:9,
                    from include/linux/srcu.h:34,
                    from include/linux/notifier.h:16,
                    from include/linux/memory_hotplug.h:7,
                    from include/linux/mmzone.h:777,
                    from include/linux/gfp.h:6,
                    from include/linux/slab.h:15,
                    from sound/core/pcm_lib.c:23:
   include/linux/time32.h:59:19: note: expected 'const struct timespec *' but argument is of type 'struct timespec64 *'
    static inline int timespec_equal(const struct timespec *a,
                      ^~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/timespec_equal +256 sound/core/pcm_lib.c

^1da177e Linus Torvalds       2005-04-16  222  
3179f620 Pierre-Louis Bossart 2015-02-13  223  static void update_audio_tstamp(struct snd_pcm_substream *substream,
ac8bbfea Baolin Wang          2018-04-24  224  				struct timespec64 *curr_tstamp,
ac8bbfea Baolin Wang          2018-04-24  225  				struct timespec64 *audio_tstamp)
3179f620 Pierre-Louis Bossart 2015-02-13  226  {
3179f620 Pierre-Louis Bossart 2015-02-13  227  	struct snd_pcm_runtime *runtime = substream->runtime;
3179f620 Pierre-Louis Bossart 2015-02-13  228  	u64 audio_frames, audio_nsecs;
ac8bbfea Baolin Wang          2018-04-24  229  	struct timespec64 driver_tstamp;
3179f620 Pierre-Louis Bossart 2015-02-13  230  
3179f620 Pierre-Louis Bossart 2015-02-13  231  	if (runtime->tstamp_mode != SNDRV_PCM_TSTAMP_ENABLE)
3179f620 Pierre-Louis Bossart 2015-02-13  232  		return;
3179f620 Pierre-Louis Bossart 2015-02-13  233  
3179f620 Pierre-Louis Bossart 2015-02-13  234  	if (!(substream->ops->get_time_info) ||
3179f620 Pierre-Louis Bossart 2015-02-13  235  		(runtime->audio_tstamp_report.actual_type ==
3179f620 Pierre-Louis Bossart 2015-02-13  236  			SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT)) {
3179f620 Pierre-Louis Bossart 2015-02-13  237  
3179f620 Pierre-Louis Bossart 2015-02-13  238  		/*
3179f620 Pierre-Louis Bossart 2015-02-13  239  		 * provide audio timestamp derived from pointer position
3179f620 Pierre-Louis Bossart 2015-02-13  240  		 * add delay only if requested
3179f620 Pierre-Louis Bossart 2015-02-13  241  		 */
3179f620 Pierre-Louis Bossart 2015-02-13  242  
3179f620 Pierre-Louis Bossart 2015-02-13  243  		audio_frames = runtime->hw_ptr_wrap + runtime->status->hw_ptr;
3179f620 Pierre-Louis Bossart 2015-02-13  244  
3179f620 Pierre-Louis Bossart 2015-02-13  245  		if (runtime->audio_tstamp_config.report_delay) {
3179f620 Pierre-Louis Bossart 2015-02-13  246  			if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
3179f620 Pierre-Louis Bossart 2015-02-13  247  				audio_frames -=  runtime->delay;
3179f620 Pierre-Louis Bossart 2015-02-13  248  			else
3179f620 Pierre-Louis Bossart 2015-02-13  249  				audio_frames +=  runtime->delay;
3179f620 Pierre-Louis Bossart 2015-02-13  250  		}
3179f620 Pierre-Louis Bossart 2015-02-13  251  		audio_nsecs = div_u64(audio_frames * 1000000000LL,
3179f620 Pierre-Louis Bossart 2015-02-13  252  				runtime->rate);
ac8bbfea Baolin Wang          2018-04-24  253  		*audio_tstamp = ns_to_timespec64(audio_nsecs);
3179f620 Pierre-Louis Bossart 2015-02-13  254  	}
ac8bbfea Baolin Wang          2018-04-24  255  
20e3f985 Henrik Eriksson      2017-11-21 @256  	if (!timespec_equal(&runtime->status->audio_tstamp, audio_tstamp)) {
ac8bbfea Baolin Wang          2018-04-24  257  		runtime->status->audio_tstamp =
ac8bbfea Baolin Wang          2018-04-24  258  			timespec64_to_timespec(*audio_tstamp);
ac8bbfea Baolin Wang          2018-04-24  259  		runtime->status->tstamp = timespec64_to_timespec(*curr_tstamp);
20e3f985 Henrik Eriksson      2017-11-21  260  	}
3179f620 Pierre-Louis Bossart 2015-02-13  261  
ac8bbfea Baolin Wang          2018-04-24  262  
3179f620 Pierre-Louis Bossart 2015-02-13  263  	/*
3179f620 Pierre-Louis Bossart 2015-02-13  264  	 * re-take a driver timestamp to let apps detect if the reference tstamp
3179f620 Pierre-Louis Bossart 2015-02-13  265  	 * read by low-level hardware was provided with a delay
3179f620 Pierre-Louis Bossart 2015-02-13  266  	 */
ac8bbfea Baolin Wang          2018-04-24  267  	snd_pcm_gettime(substream->runtime, &driver_tstamp);
3179f620 Pierre-Louis Bossart 2015-02-13  268  	runtime->driver_tstamp = driver_tstamp;
3179f620 Pierre-Louis Bossart 2015-02-13  269  }
3179f620 Pierre-Louis Bossart 2015-02-13  270  

:::::: The code at line 256 was first introduced by commit
:::::: 20e3f985bb875fea4f86b04eba4b6cc29bfd6b71 ALSA: pcm: update tstamp only if audio_tstamp changed

:::::: TO: Henrik Eriksson <henrik.eriksson@axis.com>
:::::: CC: Takashi Iwai <tiwai@suse.de>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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  reply	other threads:[~2018-04-26  8:16 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-24 12:06 [PATCH 0/8] Fix year 2038 issue for sound subsystem Baolin Wang
2018-04-24 12:06 ` [PATCH 1/8] ALSA: Replace timespec with timespec64 Baolin Wang
2018-04-26  8:15   ` kbuild test robot [this message]
2018-04-26  8:30     ` Arnd Bergmann
2018-04-26  8:41       ` Baolin Wang
2018-04-24 12:06 ` [PATCH 2/8] ALSA: Avoid using timespec for struct snd_timer_status Baolin Wang
2018-04-24 12:06 ` [PATCH 3/8] ALSA: Avoid using timespec for struct snd_ctl_elem_value Baolin Wang
2018-04-24 12:06 ` [PATCH 4/8] ALSA: Avoid using timespec for struct snd_pcm_status Baolin Wang
2018-04-26  9:20   ` kbuild test robot
2018-04-26 10:53     ` Baolin Wang
2018-04-26 12:50       ` Arnd Bergmann
2018-04-24 12:06 ` [PATCH 5/8] ALSA: Avoid using timespec for struct snd_rawmidi_status Baolin Wang
2018-04-24 12:06 ` [PATCH 6/8] ALSA: Avoid using timespec for struct snd_timer_tread Baolin Wang
2018-04-24 12:06 ` [PATCH 7/8] ALSA: move snd_pcm_ioctl_sync_ptr_compat into pcm_native.c Baolin Wang
2018-04-24 12:06 ` [PATCH 8/8] ALSA: add new 32-bit layout for snd_pcm_mmap_status/control Baolin Wang
2018-04-24 13:27   ` Arnd Bergmann
2018-04-26  3:07   ` kbuild test robot
2018-04-26 11:34     ` Arnd Bergmann
2018-04-26  6:20   ` kbuild test robot
2018-04-26  6:23   ` kbuild test robot
2018-04-26 11:25   ` kbuild test robot
2018-04-26 11:31     ` Arnd Bergmann
2018-04-26 12:11       ` Takashi Iwai
2018-04-26 15:14   ` Arnd Bergmann
2018-04-24 13:29 ` [PATCH 0/8] Fix year 2038 issue for sound subsystem Jaroslav Kysela
2018-04-24 13:37   ` Arnd Bergmann
2018-04-25  7:23     ` Jaroslav Kysela
2018-04-25 11:26       ` Arnd Bergmann
2018-04-25 11:56         ` Mark Brown
2018-04-24 13:29 ` Arnd Bergmann

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