diff options
| -rw-r--r-- | drivers/net/e1000e/netdev.c | 2 | ||||
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 19 | ||||
| -rw-r--r-- | include/linux/pci-aspm.h | 1 |
3 files changed, 18 insertions, 4 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 506a0a0043b3..5fb43f098f17 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -5347,7 +5347,7 @@ static void e1000_complete_shutdown(struct pci_dev *pdev, bool sleep, #ifdef CONFIG_PCIEASPM static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state) { - pci_disable_link_state(pdev, state); + pci_disable_link_state_locked(pdev, state); } #else static void __e1000e_disable_aspm(struct pci_dev *pdev, u16 state) diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 3eb667b24787..6892601fc76f 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -734,7 +734,7 @@ void pcie_aspm_powersave_config_link(struct pci_dev *pdev) * pci_disable_link_state - disable pci device's link state, so the link will * never enter specific states */ -void pci_disable_link_state(struct pci_dev *pdev, int state) +static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem) { struct pci_dev *parent = pdev->bus->self; struct pcie_link_state *link; @@ -747,7 +747,8 @@ void pci_disable_link_state(struct pci_dev *pdev, int state) if (!parent || !parent->link_state) return; - down_read(&pci_bus_sem); + if (sem) + down_read(&pci_bus_sem); mutex_lock(&aspm_lock); link = parent->link_state; if (state & PCIE_LINK_STATE_L0S) @@ -761,7 +762,19 @@ void pci_disable_link_state(struct pci_dev *pdev, int state) pcie_set_clkpm(link, 0); } mutex_unlock(&aspm_lock); - up_read(&pci_bus_sem); + if (sem) + up_read(&pci_bus_sem); +} + +void pci_disable_link_state_locked(struct pci_dev *pdev, int state) +{ + __pci_disable_link_state(pdev, state, false); +} +EXPORT_SYMBOL(pci_disable_link_state_locked); + +void pci_disable_link_state(struct pci_dev *pdev, int state) +{ + __pci_disable_link_state(pdev, state, true); } EXPORT_SYMBOL(pci_disable_link_state); diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h index 67cb3ae38016..7cea7b6c1413 100644 --- a/include/linux/pci-aspm.h +++ b/include/linux/pci-aspm.h @@ -28,6 +28,7 @@ extern void pcie_aspm_exit_link_state(struct pci_dev *pdev); extern void pcie_aspm_pm_state_change(struct pci_dev *pdev); extern void pcie_aspm_powersave_config_link(struct pci_dev *pdev); extern void pci_disable_link_state(struct pci_dev *pdev, int state); +extern void pci_disable_link_state_locked(struct pci_dev *pdev, int state); extern void pcie_clear_aspm(void); extern void pcie_no_aspm(void); #else |