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

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Message-ID: <OF403557D6.D9E7AB81-ON85257988.00536641-85257988.0053E284@gdeb.com>
Date:	Tue, 17 Jan 2012 10:16:14 -0500
From:	Michael D Labriola <mlabriol@...b.com>
To:	Ingo Molnar <mingo@...e.hu>, Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Michael D Labriola <mlabriol@...b.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Kushal Koolwal <kushalkoolwal@...il.com>,
	linux-kernel@...r.kernel.org, michael.d.labriola@...il.com,
	support@...salogic.com, Thomas Gleixner <tglx@...utronix.de>,
	x86@...nel.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 <mlabriol@...b.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 4240d58..c584291 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -301,14 +301,6 @@ 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",
-- 
1.6.0.3




 
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