[openib-general] [PATCH 6/6] Only check the HT capability bits in mpic.c

[Michael Ellerman]

Only compare the exact HT capability bits against HT_CAPTYPE_IRQ,
this is a little paranoid, but doesn't hurt.

Signed-off-by: Michael Ellerman <michael at ellerman.id.au>
---

 arch/powerpc/sysdev/mpic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: msi/arch/powerpc/sysdev/mpic.c
===================================================================
--- msi.orig/arch/powerpc/sysdev/mpic.c
+++ msi/arch/powerpc/sysdev/mpic.c
@@ -390,7 +390,7 @@ static void __init mpic_scan_ht_pic(stru
 		u8 id = readb(devbase + pos + PCI_CAP_LIST_ID);
 		if (id == PCI_CAP_ID_HT) {
 			id = readb(devbase + pos + 3);
-			if (id == HT_CAPTYPE_IRQ)
+			if ((id & HT_5BIT_CAP_MASK) == HT_CAPTYPE_IRQ)
 				break;
 		}
 	}