Messages in this thread Patch in this message | | | Subject | Re: [PATCH] PCI fixes for 2.6.10-rc1 | Date | Fri, 12 Nov 2004 15:21:55 -0800 | From | Greg KH <> |
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ChangeSet 1.2026.35.5, 2004/10/28 16:25:06-05:00, akpm@osdl.org
[PATCH] PCI: add hook for PCI resource deallocation
From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
This patch adds a hook 'pcibios_disable_device()' into pci_disable_device() to call architecture specific PCI resource deallocation code. It's a opposite part of pcibios_enable_device(). We need this hook to deallocate architecture specific PCI resource such as IRQ resource, etc.. This patch is just for adding the hook, so 'pcibios_disable_device()' is defined as a null function on all architecture so far.
I tested this patch on i386, x86_64 and ia64. But it has not been tested on other architectures because I don't have these machines.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
drivers/pci/pci.c | 12 ++++++++++++ 1 files changed, 12 insertions(+)
diff -Nru a/drivers/pci/pci.c b/drivers/pci/pci.c --- a/drivers/pci/pci.c 2004-11-12 15:14:21 -08:00 +++ b/drivers/pci/pci.c 2004-11-12 15:14:21 -08:00 @@ -375,6 +375,16 @@ } /** + * pcibios_disable_device - disable arch specific PCI resources for device dev + * @dev: the PCI device to disable + * + * Disables architecture specific PCI resources for the device. This + * is the default implementation. Architecture implementations can + * override this. + */ +void __attribute__ ((weak)) pcibios_disable_device (struct pci_dev *dev) {} + +/** * pci_disable_device - Disable PCI device after use * @dev: PCI device to be disabled * @@ -394,6 +404,8 @@ pci_command &= ~PCI_COMMAND_MASTER; pci_write_config_word(dev, PCI_COMMAND, pci_command); } + + pcibios_disable_device(dev); } /** - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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