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authorRafael J. Wysocki <rjw@sisk.pl>2010-07-23 22:19:55 +0200
committerJesse Barnes <jbarnes@virtuousgeek.org>2010-07-30 09:47:58 -0700
commit3d2a531804d16cd8df6dbbb0429c6f143e756049 (patch)
tree1fec9226bf58fb84bc50b5e90fb7df30d5b258df
parent1f7979ac53224b0208e7d3eaeb5fd72ab9687389 (diff)
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PCI: Do not run NVidia quirks related to MSI with MSI disabled
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 . Cc: stable@kernel.org Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
-rw-r--r--drivers/pci/quirks.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 8141f442e3df..a1682f19bcb0 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2421,6 +2421,9 @@ static void __devinit __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
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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