PATCH: handle exploding pnpbios

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Fri Mar 21 2003 - 15:14:59 EST


diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.65/arch/i386/kernel/dmi_scan.c linux-2.5.65-ac2/arch/i386/kernel/dmi_scan.c
--- linux-2.5.65/arch/i386/kernel/dmi_scan.c 2003-03-18 16:46:45.000000000 +0000
+++ linux-2.5.65-ac2/arch/i386/kernel/dmi_scan.c 2003-03-21 00:00:01.000000000 +0000
@@ -499,6 +499,19 @@
         return 0;
 }
 
+/*
+ * Exploding PnPBIOS. Don't yet know if its the BIOS or us for
+ * some entries
+ */
+
+static __init int exploding_pnp_bios(struct dmi_blacklist *d)
+{
+ printk(KERN_WARNING "%s detected. Disabling PnPBIOS\n", d->ident);
+ dmi_broken |= BROKEN_PNP_BIOS;
+ return 0;
+}
+
+
 
 /*
  * Simple "print if true" callback
@@ -687,6 +700,13 @@
                         MATCH(DMI_BIOS_VERSION, "WXPO1Z3"),
                         MATCH(DMI_BIOS_DATE, "10/26/01"), NO_MATCH
                         } },
+
+ { exploding_pnp_bios, "Higraded P14H", { /* BIOSPnP problem */
+ MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
+ MATCH(DMI_BIOS_VERSION, "07.00T"),
+ MATCH(DMI_SYS_VENDOR, "Higraded"),
+ MATCH(DMI_PRODUCT_NAME, "P14H")
+ } },
 
         /* Machines which have problems handling enabled local APICs */
 
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.65/drivers/pnp/pnpbios/core.c linux-2.5.65-ac2/drivers/pnp/pnpbios/core.c
--- linux-2.5.65/drivers/pnp/pnpbios/core.c 2003-03-03 19:20:10.000000000 +0000
+++ linux-2.5.65-ac2/drivers/pnp/pnpbios/core.c 2003-03-20 18:13:07.000000000 +0000
@@ -969,7 +969,7 @@
 
         spin_lock_init(&pnp_bios_lock);
 
- if(pnpbios_disabled) {
+ if(pnpbios_disabled || (dmi_broken & BROKEN_PNP_BIOS)) {
                 printk(KERN_INFO "PnPBIOS: Disabled\n");
                 return -ENODEV;
         }
-
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