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Revert: "dell-laptop: Toggle the unsupported hardware killswitch"

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This reverts commit a3d77411e8,

as it causes a mess in the wireless rfkill status on some models.
It is probably a bad idea to toggle the rfkill for all dell models
without the respect to the claim that it is hardware-controlled.

Cc: stable@kernel.org
Signed-off-by: Keng-Yu Lin <kengyu@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Keng-Yu Lin 2011-06-27 11:19:03 +01:00 committed by Matthew Garrett
parent 60cfa098dc
commit be65dde82a
1 changed files with 2 additions and 22 deletions
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24
drivers/platform/x86/dell-laptop.c
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@ -292,12 +292,9 @@ static int dell_rfkill_set(void *data, bool blocked)
dell_send_request(buffer, 17, 11);
/* If the hardware switch controls this radio, and the hardware
switch is disabled, don't allow changing the software state.
If the hardware switch is reported as not supported, always
fire the SMI to toggle the killswitch. */
switch is disabled, don't allow changing the software state */
if ((hwswitch_state & BIT(hwswitch_bit)) &&
!(buffer->output[1] & BIT(16)) &&
(buffer->output[1] & BIT(0))) {
!(buffer->output[1] & BIT(16))) {
ret = -EINVAL;
goto out;
}
@ -403,23 +400,6 @@ static const struct file_operations dell_debugfs_fops = {
static void dell_update_rfkill(struct work_struct *ignored)
{
int status;
get_buffer();
dell_send_request(buffer, 17, 11);
status = buffer->output[1];
release_buffer();
/* if hardware rfkill is not supported, set it explicitly */
if (!(status & BIT(0))) {
if (wifi_rfkill)
dell_rfkill_set((void *)1, !((status & BIT(17)) >> 17));
if (bluetooth_rfkill)
dell_rfkill_set((void *)2, !((status & BIT(18)) >> 18));
if (wwan_rfkill)
dell_rfkill_set((void *)3, !((status & BIT(19)) >> 19));
}
if (wifi_rfkill)
dell_rfkill_query(wifi_rfkill, (void *)1);
if (bluetooth_rfkill)