acer-wmi: Blacklist Acer Aspire One (a74dd5fd) · Commits · 戴 / test

The Aspire One's ACPI-WMI interface is a placeholder that does nothing, and the invalid results that we get from it are now causing userspace problems as acer-wmi always returns that the rfkill is enabled (i.e. the radio is off, when it isn't). As it's hardware controlled, acer-wmi isn't needed on the Aspire One either. Thanks to Andy Whitcroft at Canonical for tracking down Ubuntu's userspace issues to this. Signed-off-by:

Carlos Corbacho <carlos@strangeworlds.co.uk> Reported-by:

Andy Whitcroft <apw@canonical.com> Cc: stable@kernel.org Signed-off-by:

Len Brown <len.brown@intel.com>

drivers/platform/x86/acer-wmi.c

+25 −0

Original line number	Diff line number	Diff line
		@@ -225,6 +225,25 @@ static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
		.wireless = 2,
		};

		/* The Aspire One has a dummy ACPI-WMI interface - disable it */
		static struct dmi_system_id __devinitdata acer_blacklist[] = {
		{
		.ident = "Acer Aspire One (SSD)",
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
		DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
		},
		},
		{
		.ident = "Acer Aspire One (HDD)",
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
		DMI_MATCH(DMI_PRODUCT_NAME, "AOA150"),
		},
		},
		{}
		};

		static struct dmi_system_id acer_quirks[] = {
		{
		.callback = dmi_matched,
		@@ -1254,6 +1273,12 @@ static int __init acer_wmi_init(void)

		printk(ACER_INFO "Acer Laptop ACPI-WMI Extras\n");

		if (dmi_check_system(acer_blacklist)) {
		printk(ACER_INFO "Blacklisted hardware detected - "
		"not loading\n");
		return -ENODEV;
		}

		find_quirks();

		/*

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