Am 23.09.2014 um 04:27 schrieb kbuild test robot: > tree: git://linuxtv.org/media_tree.git devel-3.17-rc6 > head: 7f8de65b0dc84c19e79d7a642a5655524c57035c > commit: f5ac7a471e156f997833f94bad2228e57122c227 [491/499] [media] em28xx: remove some unnecessary fields from struct em28xx_audio_mode > config: i386-randconfig-r0-0923 (attached as .config) > reproduce: > git checkout f5ac7a471e156f997833f94bad2228e57122c227 > # save the attached .config to linux build tree > make ARCH=i386 > > Note: it may well be a FALSE warning. FWIW you are at least aware of it now. > http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings > > All warnings: > > In file included from drivers/media/usb/em28xx/em28xx-core.c:35:0: > drivers/media/usb/em28xx/em28xx-core.c: In function 'em28xx_audio_setup': >>> drivers/media/usb/em28xx/em28xx.h:787:2: warning: 'vid' may be used uninitialized in this function [-Wmaybe-uninitialized] > printk(KERN_INFO "%s: "fmt,\ > ^ > drivers/media/usb/em28xx/em28xx-core.c:507:6: note: 'vid' was declared here > u32 vid; > ^ This is a false warning. Applying https://patchwork.linuxtv.org/patch/25918/ makes it disappear. Regards, Frank > vim +/vid +787 drivers/media/usb/em28xx/em28xx.h > > 47677e51 drivers/media/usb/em28xx/em28xx.h Mauro Carvalho Chehab 2014-03-05 771 void em28xx_free_device(struct kref *ref); > c8793b03 drivers/media/video/em28xx/em28xx.h Mauro Carvalho Chehab 2008-01-13 772 > 855ff38e drivers/media/usb/em28xx/em28xx.h Frank Schaefer 2013-03-27 773 /* Provided by em28xx-camera.c */ > 855ff38e drivers/media/usb/em28xx/em28xx.h Frank Schaefer 2013-03-27 774 int em28xx_detect_sensor(struct em28xx *dev); > 855ff38e drivers/media/usb/em28xx/em28xx.h Frank Schaefer 2013-03-27 775 int em28xx_init_camera(struct em28xx *dev); > 855ff38e drivers/media/usb/em28xx/em28xx.h Frank Schaefer 2013-03-27 776 > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 777 /* printk macros */ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 778 > 3acf2809 drivers/media/video/em28xx/em28xx.h Mauro Carvalho Chehab 2005-11-08 779 #define em28xx_err(fmt, arg...) do {\ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 780 printk(KERN_ERR fmt , ##arg); } while (0) > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 781 > 3acf2809 drivers/media/video/em28xx/em28xx.h Mauro Carvalho Chehab 2005-11-08 782 #define em28xx_errdev(fmt, arg...) do {\ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 783 printk(KERN_ERR "%s: "fmt,\ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 784 dev->name , ##arg); } while (0) > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 785 > 3acf2809 drivers/media/video/em28xx/em28xx.h Mauro Carvalho Chehab 2005-11-08 786 #define em28xx_info(fmt, arg...) do {\ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 @787 printk(KERN_INFO "%s: "fmt,\ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 788 dev->name , ##arg); } while (0) > 3acf2809 drivers/media/video/em28xx/em28xx.h Mauro Carvalho Chehab 2005-11-08 789 #define em28xx_warn(fmt, arg...) do {\ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 790 printk(KERN_WARNING "%s: "fmt,\ > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 791 dev->name , ##arg); } while (0) > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 792 > a6c2ba28 drivers/media/video/em28xx/em28xx.h Andrew Morton 2005-11-08 793 #endif > > :::::: The code at line 787 was first introduced by commit > :::::: a6c2ba283565dbc9f055dcb2ecba1971460bb535 [PATCH] v4l: 716: support for em28xx board family > > :::::: TO: akpm@xxxxxxxx <akpm@xxxxxxxx> > :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxx> > > --- > 0-DAY kernel build testing backend Open Source Technology Center > http://lists.01.org/mailman/listinfo/kbuild Intel Corporation -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
