x86/reboot: Add quirk to make Dell C6100 use reboot=pci automatically

commit 4f0acd31c31f03ba42494c8baf6c0465150e2621 upstream.

Dell PowerEdge C6100 machines fail to completely reboot about 20% of the time.

Signed-off-by: Masoud Sharbiani <msharbiani@twitter.com>
Signed-off-by: Vinson Lee <vlee@twitter.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Link: http://lkml.kernel.org/r/1379717947-18042-1-git-send-email-vlee@freedesktop.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 76fa1e9a2b39399b1944e4a13c68a054c9a5c386..90fd1195f2761b140eaea95ead6fd23d92445873 100644 (file)
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -447,6 +447,22 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
                        DMI_MATCH(DMI_PRODUCT_NAME, "Precision M6600"),
                },
        },
+       {       /* Handle problems with rebooting on the Dell PowerEdge C6100. */
+               .callback = set_pci_reboot,
+               .ident = "Dell PowerEdge C6100",
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "C6100"),
+               },
+       },
+       {       /* Some C6100 machines were shipped with vendor being 'Dell'. */
+               .callback = set_pci_reboot,
+               .ident = "Dell PowerEdge C6100",
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "C6100"),
+               },
+       },
        { }
 };