[PATCH] [1/50] x86: Make Dell Latitude E6420 use reboot=pci

Andi Kleen
2011-07-28T23:44:24Z

From: H. Peter Anvin <hpa@zytor.com>

[ upstream commit a536877e77f73ea22d12d94a019fedd9671b6acd ]

Yet another variant of the Dell Latitude series which requires
reboot=pci.

>From the E5420 bug report by Daniel J Blueman:

> The E6420 is affected also (same platform, different casing and
> features), which provides an external confirmation of the issue; I can
> submit a patch for that later or include it if you prefer:
> http://linux.koolsolutions.com/2009/08/04/howto-fix-linux-hangfreeze-during-reboots-and-restarts/

Reported-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@kernel.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>

Index: linux-2.6.35.y/arch/x86/kernel/reboot.c
===================================================================
--- linux-2.6.35.y.orig/arch/x86/kernel/reboot.c
+++ linux-2.6.35.y/arch/x86/kernel/reboot.c
@@ -485,6 +485,14 @@ static struct dmi_system_id __initdata p
DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E5420"),
},
},
+ { /* Handle problems with rebooting on the Latitude E6420. */
+ .callback = set_pci_reboot,
+ .ident = "Dell Latitude E6420",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6420"),
+ },
+ },
{ }
};