projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff
? search:
summary | shortlog | log | commit | commitdiff | tree
raw | patch | inline | side by side (parent: 7a38050)
PCI: Only check the HT capability bits in mpic.c
authorMichael Ellerman <michael@ellerman.id.au>
Wed, 22 Nov 2006 07:26:22 +0000 (18:26 +1100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 20 Dec 2006 18:54:43 +0000 (10:54 -0800)
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@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
arch/powerpc/sysdev/mpic.c patch | blob | blame | history

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 411480d5c626b9cac903887516305d3615db3f9a..d01ced11694d2b5bdd4dda33a3aa4913bc4e5aad 100644 (file)
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -390,7 +390,7 @@ static void __init mpic_scan_ht_pic(struct mpic *mpic, u8 __iomem *devbase,
                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;
                }
        }