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From: Rafael J. Wysocki on 23 Jul 2010 16:30
From: Rafael J. Wysocki <rjw(a)sisk.pl>

There is no reason to run NVidia-specific quirks related to HT MSI
mappings with MSI disabled via pci=nomsi, so make
__nv_msi_ht_cap_quirk() return immediately in that case.

This allows at least one machine to boot 100% of the time with
pci=nomsi (it still doesn't boot reliably without that).

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16443 .

Signed-off-by: Rafael J. Wysocki <rjw(a)sisk.pl>
---
drivers/pci/quirks.c | 3 +++
1 file changed, 3 insertions(+)

Index: linux-2.6/drivers/pci/quirks.c
===================================================================
--- linux-2.6.orig/drivers/pci/quirks.c
+++ linux-2.6/drivers/pci/quirks.c
@@ -2390,6 +2390,9 @@ static void __devinit __nv_msi_ht_cap_qu
int pos;
int found;

+ if (!pci_msi_enabled())
+ return;
+
/* check if there is HT MSI cap or enabled on this device */
found = ht_check_msi_mapping(dev);

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