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| author | Brett M Russ <russb@emc.com> | 2005-08-15 15:23:41 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-09-08 15:07:08 -0700 |
| commit | a04ce0ffcaf561994ecf382cd3caad75556dc499 (patch) | |
| tree | e891a767810333fe2bf29ddb35f57b0a3ec6e18e /drivers/pci/pci.c | |
| parent | 3fe9d19f9e86a55679f5f2b38ec0a43a1a510cee (diff) | |
| download | linux-a04ce0ffcaf561994ecf382cd3caad75556dc499.tar.bz2 | |
[PATCH] PCI/libata INTx cleanup
Simple cleanup to eliminate X copies of the pci_enable_intx() function
in libata. Moved ahci.c's pci_intx() to pci.c and use it throughout
libata and msi.c.
Signed-off-by: Brett Russ <russb@emc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e179af3186f5..ccff633a3948 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -798,6 +798,31 @@ pci_clear_mwi(struct pci_dev *dev) } } +/** + * pci_intx - enables/disables PCI INTx for device dev + * @dev: the PCI device to operate on + * @enable: boolean + * + * Enables/disables PCI INTx for device dev + */ +void +pci_intx(struct pci_dev *pdev, int enable) +{ + u16 pci_command, new; + + pci_read_config_word(pdev, PCI_COMMAND, &pci_command); + + if (enable) { + new = pci_command & ~PCI_COMMAND_INTX_DISABLE; + } else { + new = pci_command | PCI_COMMAND_INTX_DISABLE; + } + + if (new != pci_command) { + pci_write_config_word(pdev, PCI_COMMAND, pci_command); + } +} + #ifndef HAVE_ARCH_PCI_SET_DMA_MASK /* * These can be overridden by arch-specific implementations @@ -875,6 +900,7 @@ EXPORT_SYMBOL(pci_request_region); EXPORT_SYMBOL(pci_set_master); EXPORT_SYMBOL(pci_set_mwi); EXPORT_SYMBOL(pci_clear_mwi); +EXPORT_SYMBOL_GPL(pci_intx); EXPORT_SYMBOL(pci_set_dma_mask); EXPORT_SYMBOL(pci_set_consistent_dma_mask); EXPORT_SYMBOL(pci_assign_resource); |