linux-kernel - [PATCH v2 5/9] x86/quirks: Convert DMI matching to use a table

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200120160801.53089-6-andriy.shevchenko@linux.intel.com>
Date:   Mon, 20 Jan 2020 18:07:57 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v2 5/9] x86/quirks: Convert DMI matching to use a table

In order to extend the DMI based quirks, convert them to a table.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 arch/x86/kernel/quirks.c | 33 +++++++++++++++++++++++++++++++--
 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index 6c122f35508a..78846a8dc88b 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -658,8 +658,37 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2083, quirk_intel_purley_xeon_ras
 bool x86_apple_machine;
 EXPORT_SYMBOL(x86_apple_machine);
 
+static const struct dmi_system_id x86_machine_table[] __initconst = {
+	{
+		.ident = "x86 Apple Macintosh",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+		},
+		.driver_data = &x86_apple_machine,
+	},
+	{
+		.ident = "x86 Apple Macintosh",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+		},
+		.driver_data = &x86_apple_machine,
+	},
+	{}
+};
+
+static void __init early_platfrom_detect_quirk(void)
+{
+	const struct dmi_system_id *id;
+
+	id = dmi_first_match(x86_machine_table);
+	if (!id)
+		return;
+
+	printk(KERN_DEBUG "Detected %s platform\n", id->ident);
+	*((bool *)id->driver_data) = true;
+}
+
 void __init early_platform_quirks(void)
 {
-	x86_apple_machine = dmi_match(DMI_SYS_VENDOR, "Apple Inc.") ||
-			    dmi_match(DMI_SYS_VENDOR, "Apple Computer, Inc.");
+	early_platfrom_detect_quirk();
 }
-- 
2.24.1