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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Alexandru, First bad commit (maybe != root cause): tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v4.19 head: 63166c634f2972b2e6949be0d5c998364af85fa8 commit: 46e491438385416be6dab43faa451e3755848cac [1546/1668] uio: rename uio.c -> uio_core.c & unify into uio.ko reproduce: # apt-get install sparse # sparse version: v0.6.1-rc1-7-g2b96cd8-dirty git checkout 46e491438385416be6dab43faa451e3755848cac make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot sparse warnings: (new ones prefixed by >>) >> drivers/uio/uio_core.c:564:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __poll_t [usertype] ret @@ got e] ret @@ >> drivers/uio/uio_core.c:564:21: sparse: expected restricted __poll_t [usertype] ret >> drivers/uio/uio_core.c:564:21: sparse: got int vim +564 drivers/uio/uio_core.c beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 555 afc9a42b7464f7 drivers/uio/uio.c Al Viro 2017-07-03 556 static __poll_t uio_poll(struct file *filep, poll_table *wait) beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 557 { beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 558 struct uio_listener *listener = filep->private_data; beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 559 struct uio_device *idev = listener->dev; a93e7b33156822 drivers/uio/uio.c Hamish Martin 2018-05-14 560 __poll_t ret = 0; beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 561 543af5861f41af drivers/uio/uio.c Xiubo Li 2018-07-06 562 mutex_lock(&idev->info_lock); a93e7b33156822 drivers/uio/uio.c Hamish Martin 2018-05-14 563 if (!idev->info || !idev->info->irq) a93e7b33156822 drivers/uio/uio.c Hamish Martin 2018-05-14 @564 ret = -EIO; 543af5861f41af drivers/uio/uio.c Xiubo Li 2018-07-06 565 mutex_unlock(&idev->info_lock); a93e7b33156822 drivers/uio/uio.c Hamish Martin 2018-05-14 566 a93e7b33156822 drivers/uio/uio.c Hamish Martin 2018-05-14 567 if (ret) a93e7b33156822 drivers/uio/uio.c Hamish Martin 2018-05-14 568 return ret; beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 569 beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 570 poll_wait(filep, &idev->wait, wait); beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 571 if (listener->event_count != atomic_read(&idev->event)) a9a08845e9acbd drivers/uio/uio.c Linus Torvalds 2018-02-11 572 return EPOLLIN | EPOLLRDNORM; beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 573 return 0; beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 574 } beafc54c4e2fba drivers/uio/uio.c Hans J. Koch 2006-12-07 575 :::::: The code at line 564 was first introduced by commit :::::: a93e7b331568227500186a465fee3c2cb5dffd1f uio: Prevent device destruction while fds are open :::::: TO: Hamish Martin :::::: CC: Greg Kroah-Hartman --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel