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authorEric W. Biederman <ebiederm@xmission.com>2007-01-28 12:42:52 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2007-02-07 15:50:07 -0800
commitded86d8d37736df67ddeec4ae00e2ec1a5a90b3c (patch)
tree6a1c175992692ca2db80b34b0df3cb44b1541253 /include/linux
parent8fed4b65236c44d090bd62f2d14938ae791e0260 (diff)
downloadop-kernel-dev-ded86d8d37736df67ddeec4ae00e2ec1a5a90b3c.zip
op-kernel-dev-ded86d8d37736df67ddeec4ae00e2ec1a5a90b3c.tar.gz
msi: Kill msi_lookup_irq
The function msi_lookup_irq was horrible. As a side effect of running it changed dev->irq, and then the callers would need to change it back. In addition it does a global scan through all of the irqs, which seems to be the sole justification of the msi_lock. To remove the neede for msi_lookup_irq I added first_msi_irq to struct pci_dev. Then depending on the context I replaced msi_lookup_irq with dev->first_msi_irq, dev->msi_enabled, or dev->msix_enabled. msi_enabled and msix_enabled were already present in pci_dev for other reasons. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/pci.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 29765e2..1507f8c 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -174,6 +174,9 @@ struct pci_dev {
struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */
int rom_attr_enabled; /* has display of the rom attribute been enabled? */
struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
+#ifdef CONFIG_PCI_MSI
+ unsigned int first_msi_irq;
+#endif
};
#define pci_dev_g(n) list_entry(n, struct pci_dev, global_list)
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