diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2013-11-17 14:00:20 +0100 |
|---|---|---|
| committer | Matthew Garrett <matthew.garrett@nebula.com> | 2013-11-20 18:50:48 -0500 |
| commit | 33f9359abb9f6ded3e7b6dc98b1468c83404af49 (patch) | |
| tree | 44a4f50491278c06965e4f26b2731aba4d31e949 /drivers/platform | |
| parent | d038880efd9dd222c67fd31fbfca3440d0db3a06 (diff) | |
| download | linux-33f9359abb9f6ded3e7b6dc98b1468c83404af49.tar.bz2 | |
dell-laptop: Don't set sw_state from the query callback
The query callback should only update the hw_state, see the comment in
net/rfkill/core.c in rfkill_set_block, which is its only caller.
rfkill_set_block will modify the sw_state directly after calling query so
calling set_sw_state is an expensive NOP.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/dell-laptop.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c index 06f281bf7790..7f47396846d1 100644 --- a/drivers/platform/x86/dell-laptop.c +++ b/drivers/platform/x86/dell-laptop.c @@ -425,10 +425,15 @@ out: return ret; } -static void dell_rfkill_update(struct rfkill *rfkill, int radio, int status) +static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio, + int status) { rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16))); +} +static void dell_rfkill_update_hw_state(struct rfkill *rfkill, int radio, + int status) +{ if (hwswitch_state & (BIT(radio - 1))) rfkill_set_hw_state(rfkill, !(status & BIT(16))); } @@ -442,7 +447,7 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data) status = buffer->output[1]; release_buffer(); - dell_rfkill_update(rfkill, (unsigned long)data, status); + dell_rfkill_update_hw_state(rfkill, (unsigned long)data, status); } static const struct rfkill_ops dell_rfkill_ops = { @@ -528,12 +533,18 @@ static void dell_update_rfkill(struct work_struct *ignored) status = buffer->output[1]; release_buffer(); - if (wifi_rfkill) - dell_rfkill_update(wifi_rfkill, 1, status); - if (bluetooth_rfkill) - dell_rfkill_update(bluetooth_rfkill, 2, status); - if (wwan_rfkill) - dell_rfkill_update(wwan_rfkill, 3, status); + if (wifi_rfkill) { + dell_rfkill_update_hw_state(wifi_rfkill, 1, status); + dell_rfkill_update_sw_state(wifi_rfkill, 1, status); + } + if (bluetooth_rfkill) { + dell_rfkill_update_hw_state(bluetooth_rfkill, 2, status); + dell_rfkill_update_sw_state(bluetooth_rfkill, 2, status); + } + if (wwan_rfkill) { + dell_rfkill_update_hw_state(wwan_rfkill, 3, status); + dell_rfkill_update_sw_state(wwan_rfkill, 3, status); + } } static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill); |