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PCI/ASPM: Add pci_disable_link_state_locked() lockdep assert

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Add a lockdep assert to pci_disable_link_state_locked() which should only
be called with a pci_bus_sem read lock held.

Link: https://lore.kernel.org/r/20231128081512.19387-7-johan+linaro@kernel.org
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
[bhelgaas: include function name in subject, commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
This commit is contained in:
Johan Hovold 2023-11-28 09:15:12 +01:00 committed by Bjorn Helgaas
parent e673d383bd
commit 7ff2b7a182
1 changed files with 2 additions and 0 deletions
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2
drivers/pci/pcie/aspm.c
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@ -1090,6 +1090,8 @@ static int __pci_disable_link_state(struct pci_dev *pdev, int state, bool locked
int pci_disable_link_state_locked(struct pci_dev *pdev, int state)
{
lockdep_assert_held_read(&pci_bus_sem);
return __pci_disable_link_state(pdev, state, true);
}
EXPORT_SYMBOL(pci_disable_link_state_locked);