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Revert "PCI: Clear PCI_STATUS when setting up device"

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[ Upstream commit 44e985938e85503d0a69ec538e15fd33c1a4df05 ]

This reverts commit 6cd514e58f.

Christophe Fergeau reported that 6cd514e58f ("PCI: Clear PCI_STATUS when
setting up device") causes boot failures when trying to start linux guests
with Apple's virtualization framework (for example using
https://developer.apple.com/documentation/virtualization/running_linux_in_a_virtual_machine?language=objc)

6cd514e58f only solved a cosmetic problem, so revert it to fix the boot
failures.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=2137803
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Bjorn Helgaas 2022-11-07 15:31:08 -06:00 committed by Greg Kroah-Hartman
parent fc521abb6e
commit cbb17d7087
1 changed files with 0 additions and 3 deletions
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3
drivers/pci/probe.c
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@ -1891,9 +1891,6 @@ int pci_setup_device(struct pci_dev *dev)
dev->broken_intx_masking = pci_intx_mask_broken(dev);
/* Clear errors left from system firmware */
pci_write_config_word(dev, PCI_STATUS, 0xffff);
switch (dev->hdr_type) { /* header type */
case PCI_HEADER_TYPE_NORMAL: /* standard header */
if (class == PCI_CLASS_BRIDGE_PCI)