Messages in this thread Patch in this message | | | Date | Fri, 16 Mar 2012 16:38:23 -0700 | From | Greg KH <> | Subject | [ 13/41] acer-wmi: No wifi rfkill on Lenovo machines |
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3.2-stable review patch. If anyone has any objections, please let me know.
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From: Ike Panhc <ike.pan@canonical.com>
commit 461e74377cfcfc2c0d6bbdfa8fc5fbc21b052c2a upstream.
We have several reports which says acer-wmi is loaded on ideapads and register rfkill for wifi which can not be unblocked.
Since ideapad-laptop also register rfkill for wifi and it works reliably, it will be fine acer-wmi is not going to register rfkill for wifi once VPC2004 is found.
Also put IBM0068/LEN0068 in the list. Though thinkpad_acpi has no wifi rfkill capability, there are reports which says acer-wmi also block wireless on Thinkpad E520/E420.
Signed-off-by: Ike Panhc <ike.pan@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> Cc: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/platform/x86/acer-wmi.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-)
--- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -679,6 +679,32 @@ static acpi_status AMW0_find_mailled(voi return AE_OK; } +static int AMW0_set_cap_acpi_check_device_found; + +static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle, + u32 level, void *context, void **retval) +{ + AMW0_set_cap_acpi_check_device_found = 1; + return AE_OK; +} + +static const struct acpi_device_id norfkill_ids[] = { + { "VPC2004", 0}, + { "IBM0068", 0}, + { "LEN0068", 0}, + { "", 0}, +}; + +static int AMW0_set_cap_acpi_check_device(void) +{ + const struct acpi_device_id *id; + + for (id = norfkill_ids; id->id[0]; id++) + acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb, + NULL, NULL); + return AMW0_set_cap_acpi_check_device_found; +} + static acpi_status AMW0_set_capabilities(void) { struct wmab_args args; @@ -692,7 +718,9 @@ static acpi_status AMW0_set_capabilities * work. */ if (wmi_has_guid(AMW0_GUID2)) { - interface->capability |= ACER_CAP_WIRELESS; + if ((quirks != &quirk_unknown) || + !AMW0_set_cap_acpi_check_device()) + interface->capability |= ACER_CAP_WIRELESS; return AE_OK; }
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