Hi Takashi, [auto build test WARNING on sound/for-next] [also build test WARNING on v4.8-rc3 next-20160825] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information] url: https://github.com/0day-ci/linux/commits/Takashi-Sakamoto/ALSA-fireworks-accessing-to-user-space-outside-spinlock/20160827-045250 base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next config: tile-allyesconfig (attached as .config) compiler: tilegx-linux-gcc (GCC) 4.6.2 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=tile All warnings (new ones prefixed by >>): sound/firewire/fireworks/fireworks_hwdep.c: In function 'hwdep_read_locked': >> sound/firewire/fireworks/fireworks_hwdep.c:86:8: warning: missing braces around initializer [-Wmissing-braces] sound/firewire/fireworks/fireworks_hwdep.c:86:8: warning: (near initialization for 'event.common') [-Wmissing-braces] vim +86 sound/firewire/fireworks/fireworks_hwdep.c 70 count += till_end; 71 remained -= till_end; 72 } 73 74 efw->resp_queues--; 75 } 76 77 spin_unlock_irq(&efw->lock); 78 79 return count; 80 } 81 82 static long 83 hwdep_read_locked(struct snd_efw *efw, char __user *buf, long count, 84 loff_t *offset) 85 { > 86 union snd_firewire_event event = {0}; 87 88 event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; 89 90 spin_lock_irq(&efw->lock); 91 92 event.lock_status.status = (efw->dev_lock_count > 0); 93 efw->dev_lock_changed = false; 94 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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