From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-Id: <20120316233448.615147556@linuxfoundation.org> Date: Fri, 16 Mar 2012 16:35:02 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Ike Panhc , Matthew Garrett , Jonathan Nieder Subject: [ 15/38] acer-wmi: No wifi rfkill on Lenovo machines In-Reply-To: <20120316233422.GA5461@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ike Panhc 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 Signed-off-by: Matthew Garrett Cc: Jonathan Nieder Signed-off-by: Greg Kroah-Hartman --- 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 @@ -676,6 +676,32 @@ 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; @@ -689,7 +715,9 @@ 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; }