PCI/ASPM: Add pci_enable_link_state_locked()

Add pci_enable_link_state_locked() for enabling link states that can be
used in contexts where a pci_bus_sem read lock is already held (e.g. from
pci_walk_bus()).

This helper will be used to fix a couple of potential deadlocks where
the current helper is called with the lock already held, hence the CC
stable tag.

Fixes: f492edb40b54 ("PCI: vmd: Add quirk to configure PCIe ASPM and LTR")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Johan Hovold <[email protected]>
[bhelgaas: include helper name in subject, commit log]
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Cc: <[email protected]>	# 6.3
Cc: Michael Bottini <[email protected]>
Cc: David E. Box <[email protected]>

0 files changed, 0 insertions, 0 deletions