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authorLinus Torvalds <torvalds@linux-foundation.org>2021-11-13 20:18:06 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-13 20:18:06 +0300
commitbe427a88a3dc2de30688b08d078f4f4c1bb035d6 (patch)
tree8c3b1632ec18c5022cde45dc4ed92759779b1e50 /drivers/pci/pci.c
parentb89f311d7e25eb246376ac10de46d6ecc6b6ed5c (diff)
parenta4751f157c194431fae9e9c493f456df8272b871 (diff)
downloadlinux-be427a88a3dc2de30688b08d078f4f4c1bb035d6.tar.xz
Merge tag 's390-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik: - Add PCI automatic error recovery. - Fix tape driver timer initialization broken during timers api cleanup. - Fix bogus CPU measurement counters values on CPUs offlining. - Check the validity of subchanel before reading other fields in the schib in cio code. * tag 's390-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/cio: check the subchannel validity for dev_busid s390/cpumf: cpum_cf PMU displays invalid value after hotplug remove s390/tape: fix timer initialization in tape_std_assign() s390/pci: implement minimal PCI error recovery PCI: Export pci_dev_lock() s390/pci: implement reset_slot for hotplug slot s390/pci: refresh function handle in iomap
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 1579a3724eb4..3d2fb394986a 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -5106,12 +5106,13 @@ static int pci_reset_bus_function(struct pci_dev *dev, bool probe)
return pci_parent_bus_reset(dev, probe);
}
-static void pci_dev_lock(struct pci_dev *dev)
+void pci_dev_lock(struct pci_dev *dev)
{
pci_cfg_access_lock(dev);
/* block PM suspend, driver probe, etc. */
device_lock(&dev->dev);
}
+EXPORT_SYMBOL_GPL(pci_dev_lock);
/* Return 1 on successful lock, 0 on contention */
int pci_dev_trylock(struct pci_dev *dev)