pci: don't disable too many HT MSI mapping

Prakash's system needs MSI disabled on some bridges, but not all. This seems to be the minimal fix for 2.6.29, but should be replaced during 2.6.30. Signed-off-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

pci: don't disable too many HT MSI mapping
Prakash's system needs MSI disabled on some bridges, but not all. This seems to be the minimal fix for 2.6.29, but should be replaced during 2.6.30. Signed-off-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Prakash Punnoor · Matthew Wilcox
1 parent 3f3b902ed8
Showing 1 changed file with 4 additions and 0 deletions Side-by-side Diff
drivers/pci/quirks.c
@@ -2166,6 +2166,10 @@
 	int pos;
 	int found;
  
+	/* Enabling HT MSI mapping on this device breaks MCP51 */
+	if (dev->device == 0x270)
+		return;
+
 	/* check if there is HT MSI cap or enabled on this device */
 	found = ht_check_msi_mapping(dev);
...	...	@@ -2166,6 +2166,10 @@
2166	2166	int pos;
2167	2167	int found;
2168	2168
	2169	+ /* Enabling HT MSI mapping on this device breaks MCP51 */
	2170	+ if (dev->device == 0x270)
	2171	+ return;
	2172	+
2169	2173	/* check if there is HT MSI cap or enabled on this device */
2170	2174	found = ht_check_msi_mapping(dev);
2171	2175