linux-kernel - [PATCH] x86/reboot/quirks: Add MacBook6,1 reboot quirk

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Message-ID: <20200425200641.GA1554@cslab.localdomain>
Date:   Sat, 25 Apr 2020 13:06:41 -0700
From:   Hill Ma <maahiuzeon@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86/reboot/quirks: Add MacBook6,1 reboot quirk

On MacBook6,1 reboot would hang unless parameter reboot=pci is added.
This makes it automatic.

Same as https://lkml.org/lkml/2020/4/5/221 with a bigger number of recipients.
Applies to next-20200424.

Cc: stable@...r.kernel.org
Signed-off-by: Hill Ma <maahiuzeon@...il.com>
---
 arch/x86/kernel/reboot.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 3ca43be4f..8b8cebfd3 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -197,6 +197,14 @@ static const struct dmi_system_id reboot_dmi_table[] __initconst = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5"),
 		},
 	},
+	{	/* Handle problems with rebooting on Apple MacBook6,1 */
+		.callback = set_pci_reboot,
+		.ident = "Apple MacBook6,1",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBook6,1"),
+		},
+	},
 	{	/* Handle problems with rebooting on Apple MacBookPro5 */
 		.callback = set_pci_reboot,
 		.ident = "Apple MacBookPro5",
-- 
2.26.0