diff options
| author | Rafael J. Wysocki <rjw@sisk.pl> | 2010-08-21 01:50:52 +0200 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-08-24 13:43:08 -0700 |
| commit | f1a7bfaf6bb9cb195577e674c0ab2fd0a55d9014 (patch) | |
| tree | 8150335e1d70d026704f39c28921615d5af9701e | |
| parent | 23b90cfd7bcf8ae1c0711df1cae7dfec3c01aec8 (diff) | |
| download | linux-f1a7bfaf6bb9cb195577e674c0ab2fd0a55d9014.tar.gz linux-f1a7bfaf6bb9cb195577e674c0ab2fd0a55d9014.tar.xz | |
PCI: PCIe AER: Introduce pci_aer_available()
Introduce a function allowing the caller to check whether to try to
enable PCIe AER.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| -rw-r--r-- | drivers/pci/pci.h | 2 | ||||
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv.c | 9 |
2 files changed, 8 insertions, 3 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 679c39de6a89..7754a678ab15 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -140,8 +140,10 @@ static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { } #ifdef CONFIG_PCIEAER void pci_no_aer(void); +bool pci_aer_available(void); #else static inline void pci_no_aer(void) { } +static inline bool pci_aer_available(void) { return false; } #endif static inline int pci_no_d1d2(struct pci_dev *dev) diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c index 484cc55194b8..f409948e1a9b 100644 --- a/drivers/pci/pcie/aer/aerdrv.c +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -72,6 +72,11 @@ void pci_no_aer(void) pcie_aer_disable = 1; /* has priority over 'forceload' */ } +bool pci_aer_available(void) +{ + return !pcie_aer_disable && pci_msi_enabled(); +} + static int set_device_error_reporting(struct pci_dev *dev, void *data) { bool enable = *((bool *)data); @@ -411,9 +416,7 @@ static void aer_error_resume(struct pci_dev *dev) */ static int __init aer_service_init(void) { - if (pcie_aer_disable) - return -ENXIO; - if (!pci_msi_enabled()) + if (!pci_aer_available()) return -ENXIO; return pcie_port_service_register(&aerdriver); } |