diff options
Diffstat (limited to 'drivers/pci/access.c')
| -rw-r--r-- | drivers/pci/access.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/pci/access.c b/drivers/pci/access.c index 3c230ca3de58..0b2e90d2f04f 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -497,8 +497,8 @@ int pcie_capability_write_dword(struct pci_dev *dev, int pos, u32 val) } EXPORT_SYMBOL(pcie_capability_write_dword); -int pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos, - u16 clear, u16 set) +int pcie_capability_clear_and_set_word_unlocked(struct pci_dev *dev, int pos, + u16 clear, u16 set) { int ret; u16 val; @@ -512,7 +512,21 @@ int pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos, return ret; } -EXPORT_SYMBOL(pcie_capability_clear_and_set_word); +EXPORT_SYMBOL(pcie_capability_clear_and_set_word_unlocked); + +int pcie_capability_clear_and_set_word_locked(struct pci_dev *dev, int pos, + u16 clear, u16 set) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&dev->pcie_cap_lock, flags); + ret = pcie_capability_clear_and_set_word_unlocked(dev, pos, clear, set); + spin_unlock_irqrestore(&dev->pcie_cap_lock, flags); + + return ret; +} +EXPORT_SYMBOL(pcie_capability_clear_and_set_word_locked); int pcie_capability_clear_and_set_dword(struct pci_dev *dev, int pos, u32 clear, u32 set) |