linux-kernel - [PATCH] x86, reboot: remove VersaLogic Menlow reboot quirk

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Message-Id: <87vcnub9hu.fsf@gmail.com>
Date:	Sun, 29 Jan 2012 14:21:17 -0500
From:	Michael D Labriola <michael.d.labriola@...il.com>
To:	Ingo Molnar <mingo@...e.hu>, Matthew Garrett <mjg@...hat.com>,
	Michael D Labriola <mlabriol@...b.com>,
	Kushal Koolwal <kushalkoolwal@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] x86, reboot: remove VersaLogic Menlow reboot quirk

This commit removes the reboot quirk originally added by commit e19e074
(x86: Fix reboot problem on VersaLogic Menlow boards).

Testing with a VersaLogic Ocelot (VL-EPMs-21a rev 1.00 w/ BIOS 6.5.102)
revealed the following regarding the reboot hang problem:

- v2.6.37 reboot=bios was needed.

- v2.6.38-rc1: behavior changed, reboot=acpi is needed, reboot=kbd and
  reboot=bios result in system hang.

- v2.6.38: VersaLogic patch (e19e074 x86: Fix reboot problem on
  VersaLogic Menlow boards) was applied prior to v2.6.38-rc7.  This
  patch sets a quirk for VersaLogic Menlow boards that forces the use
  of reboot=bios, which doesn't work anymore.

- v3.2: It seems that commit 660e34c (x86: Reorder reboot method
  preferences) changed the default reboot method to acpi prior to
  v3.0-rc1, which means the default behavior is appropriate for the
  Ocelot.  No VersaLogic quirk is required.

The Ocelot board used for testing can successfully reboot w/out having to
pass any reboot= arguments for all 3 current versions of the BIOS.

Signed-off-by: Michael D Labriola <michael.d.labriola@...il.com>
---
 arch/x86/kernel/reboot.c |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index b257f0e..d840e69 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -309,14 +309,6 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
 		},
 	},
-	{	/* Handle problems with rebooting on VersaLogic Menlow boards */
-		.callback = set_bios_reboot,
-		.ident = "VersaLogic Menlow based board",
-		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "VersaLogic Corporation"),
-			DMI_MATCH(DMI_BOARD_NAME, "VersaLogic Menlow board"),
-		},
-	},
 	{ /* Handle reboot issue on Acer Aspire one */
 		.callback = set_kbd_reboot,
 		.ident = "Acer Aspire One A110",
-- 
1.7.1.1

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