user/sven/linux.git/net/rfkill/core.c, branch v3.18.78

rfkill: fix rfkill_fop_read wait_event usage

2016-02-15T20:42:34Z

[ Upstream commit 6736fde9672ff6717ac576e9bba2fd5f3dfec822 ] The code within wait_event_interruptible() is called with !TASK_RUNNING, so mustn't call any functions that can sleep, like mutex_lock(). Since we re-check the list_empty() in a loop after the wait, it's safe to simply use list_empty() without locking. This bug has existed forever, but was only discovered now because all userspace implementations, including the default 'rfkill' tool, use poll() or select() to get a readable fd before attempting to read. Cc: stable@vger.kernel.org Fixes: c64fb01627e24 ("rfkill: create useful userspace interface") Reported-by: Dmitry Vyukov Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

net: rfkill: kernel-doc warning fixes

2014-10-08T19:24:15Z

s/state/blocked Signed-off-by: Fabian Frederick Signed-off-by: John W. Linville

net: rfkill: move poll work to power efficient workqueue

2014-02-04T20:58:16Z

This patch moves the rfkill poll_work to the power efficient workqueue. This work does not have to be bound to the CPU that scheduled it, hence the selection of CPU that executes it would be left to the scheduler. Net result is that CPU idle times would be extended, resulting in power savings. This behaviour is enabled when CONFIG_WQ_POWER_EFFICIENT is selected. Cc: "John W. Linville" Cc: "David S. Miller" Signed-off-by: Shaibal Dutta [zoran.markovic@linaro.org: Rebased to latest kernel, added commit message. Fixed workqueue selection after suspend/resume cycle.] Signed-off-by: Zoran Markovic Signed-off-by: Johannes Berg

rfkill: Fix FSF address in file headers

2013-12-11T15:56:21Z

Several files refer to an old address for the Free Software Foundation in the file header comment. Resolve by replacing the address with the URL so that we do not have to keep updating the header comments anytime the address changes. CC: linux-wireless@vger.kernel.org Signed-off-by: Jeff Kirsher Signed-off-by: John W. Linville

net: rfkill: convert class code to use dev_groups

2013-07-25T23:34:40Z

The dev_attrs field of struct class is going away soon, dev_groups should be used instead. This converts the rfkill class code to use the correct field. Cc: John W. Linville Reviewed-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman

rfkill: Add NFC to the list of supported radios

2013-04-12T14:54:38Z

And return the proper string for it. Acked-by: Johannes Berg Acked-by: Marcel Holtmann Signed-off-by: Samuel Ortiz

Merge branch 'master' into for-next

2012-10-28T18:29:19Z

Sync up with Linus' tree to be able to apply Cesar's patch against newer version of the code. Signed-off-by: Jiri Kosina

rfkill: error cannot be set here so simplify

2012-10-25T15:58:41Z

Signed-off-by: Alan Cox Signed-off-by: Jiri Kosina

rfkill: prevent unnecessary event generation

2012-09-24T08:35:54Z

Prevent unnecessary rfkill event generation when the state has not actually changed. These events have to be delivered to relevant userspace processes, causing these processes to wake up and do something while they could as well have slept. This obviously results in more CPU usage, longer time-to-sleep-again and therefore higher power consumption. Signed-off-by: Vitaly Wool Signed-off-by: Mykyta Iziumtsev Signed-off-by: Johannes Berg

Revert "rfkill: remove dead code"

2012-08-21T18:50:25Z

This reverts commit 2e48928d8a0f38c1b5c81eb3f1294de8a6382c68. Those functions are needed and should not be removed, or there is no way to set the rfkill led trigger name. Signed-off-by: AceLan Kao Signed-off-by: Johannes Berg