Hi Vaibhav, Thank you for the patch! Yet something to improve: [auto build test ERROR on linuxtv-media/master] [also build test ERROR on pci/next v5.8-rc5 next-20200716] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Vaibhav-Gupta/pci-use-generic-power-management/20200717-120145 base: git://linuxtv.org/media_tree.git master config: s390-allmodconfig (attached as .config) compiler: s390-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): 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 COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): drivers/media/pci/cx88/cx88-video.c: In function 'cx8800_suspend': >> drivers/media/pci/cx88/cx88-video.c:1564:3: error: implicit declaration of function 'stop_video_dma'; did you mean 'start_video_dma'? [-Werror=implicit-function-declaration] 1564 | stop_video_dma(dev); | ^~~~~~~~~~~~~~ | start_video_dma drivers/media/pci/cx88/cx88-video.c: In function 'cx8800_resume': >> drivers/media/pci/cx88/cx88-video.c:1600:3: error: implicit declaration of function 'restart_video_queue'; did you mean 'start_video_dma'? [-Werror=implicit-function-declaration] 1600 | restart_video_queue(dev, &dev->vidq); | ^~~~~~~~~~~~~~~~~~~ | start_video_dma cc1: some warnings being treated as errors vim +1564 drivers/media/pci/cx88/cx88-video.c ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1553 3bdbfebc5677cf drivers/media/pci/cx88/cx88-video.c Vaibhav Gupta 2020-07-17 1554 static int __maybe_unused cx8800_suspend(struct device *dev_d) ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1555 { 3bdbfebc5677cf drivers/media/pci/cx88/cx88-video.c Vaibhav Gupta 2020-07-17 1556 struct cx8800_dev *dev = dev_get_drvdata(dev_d); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1557 struct cx88_core *core = dev->core; 5ddfbbb9ca2e74 drivers/media/pci/cx88/cx88-video.c Alexey Khoroshilov 2013-04-13 1558 unsigned long flags; ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1559 ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1560 /* stop video+vbi capture */ 5ddfbbb9ca2e74 drivers/media/pci/cx88/cx88-video.c Alexey Khoroshilov 2013-04-13 1561 spin_lock_irqsave(&dev->slock, flags); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1562 if (!list_empty(&dev->vidq.active)) { 65bc2fe86e6670 drivers/media/pci/cx88/cx88-video.c Mauro Carvalho Chehab 2016-11-13 1563 pr_info("suspend video\n"); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 @1564 stop_video_dma(dev); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1565 } ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1566 if (!list_empty(&dev->vbiq.active)) { 65bc2fe86e6670 drivers/media/pci/cx88/cx88-video.c Mauro Carvalho Chehab 2016-11-13 1567 pr_info("suspend vbi\n"); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1568 cx8800_stop_vbi_dma(dev); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1569 } 5ddfbbb9ca2e74 drivers/media/pci/cx88/cx88-video.c Alexey Khoroshilov 2013-04-13 1570 spin_unlock_irqrestore(&dev->slock, flags); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1571 13595a51c0da8e drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2007-10-01 1572 if (core->ir) 92f4fc10d7ba01 drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2010-03-31 1573 cx88_ir_stop(core); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1574 /* FIXME -- shutdown device */ e52e98a7eccfb0 drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2005-09-09 1575 cx88_shutdown(core); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1576 ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1577 dev->state.disabled = 1; ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1578 return 0; ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1579 } ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1580 3bdbfebc5677cf drivers/media/pci/cx88/cx88-video.c Vaibhav Gupta 2020-07-17 1581 static int __maybe_unused cx8800_resume(struct device *dev_d) ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1582 { 3bdbfebc5677cf drivers/media/pci/cx88/cx88-video.c Vaibhav Gupta 2020-07-17 1583 struct cx8800_dev *dev = dev_get_drvdata(dev_d); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1584 struct cx88_core *core = dev->core; 5ddfbbb9ca2e74 drivers/media/pci/cx88/cx88-video.c Alexey Khoroshilov 2013-04-13 1585 unsigned long flags; 08adb9e20be83b drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2005-09-09 1586 ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1587 dev->state.disabled = 0; ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1588 ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1589 /* FIXME: re-initialize hardware */ e52e98a7eccfb0 drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2005-09-09 1590 cx88_reset(core); 13595a51c0da8e drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2007-10-01 1591 if (core->ir) 92f4fc10d7ba01 drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2010-03-31 1592 cx88_ir_start(core); 13595a51c0da8e drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2007-10-01 1593 13595a51c0da8e drivers/media/video/cx88/cx88-video.c Mauro Carvalho Chehab 2007-10-01 1594 cx_set(MO_PCI_INTMSK, core->pci_irqmask); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1595 ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1596 /* restart video+vbi capture */ 5ddfbbb9ca2e74 drivers/media/pci/cx88/cx88-video.c Alexey Khoroshilov 2013-04-13 1597 spin_lock_irqsave(&dev->slock, flags); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1598 if (!list_empty(&dev->vidq.active)) { 65bc2fe86e6670 drivers/media/pci/cx88/cx88-video.c Mauro Carvalho Chehab 2016-11-13 1599 pr_info("resume video\n"); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 @1600 restart_video_queue(dev, &dev->vidq); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1601 } ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1602 if (!list_empty(&dev->vbiq.active)) { 65bc2fe86e6670 drivers/media/pci/cx88/cx88-video.c Mauro Carvalho Chehab 2016-11-13 1603 pr_info("resume vbi\n"); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1604 cx8800_restart_vbi_queue(dev, &dev->vbiq); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1605 } 5ddfbbb9ca2e74 drivers/media/pci/cx88/cx88-video.c Alexey Khoroshilov 2013-04-13 1606 spin_unlock_irqrestore(&dev->slock, flags); ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1607 ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1608 return 0; ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1609 } ^1da177e4c3f41 drivers/media/video/cx88/cx88-video.c Linus Torvalds 2005-04-16 1610 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org