Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Yet another big pile of changes:

   - More year 2038 work from Arnd slowly reaching the point where we
     need to think about the syscalls themself.

   - A new timer function which allows to conditionally (re)arm a timer
     only when it's either not running or the new expiry time is sooner
     than the armed expiry time. This allows to use a single timer for
     multiple timeout requirements w/o caring about the first expiry
     time at the call site.

   - A new NMI safe accessor to clock real time for the printk timestamp
     work. Can be used by tracing, perf as well if required.

   - A large number of timer setup conversions from Kees which got
     collected here because either maintainers requested so or they
     simply got ignored. As Kees pointed out already there are a few
     trivial merge conflicts and some redundant commits which was
     unavoidable due to the size of this conversion effort.

   - Avoid a redundant iteration in the timer wheel softirq processing.

   - Provide a mechanism to treat RTC implementations depending on their
     hardware properties, i.e. don't inflict the write at the 0.5
     seconds boundary which originates from the PC CMOS RTC to all RTCs.
     No functional change as drivers need to be updated separately.

   - The usual small updates to core code clocksource drivers. Nothing
     really exciting"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits)
  timers: Add a function to start/reduce a timer
  pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday()
  timer: Prepare to change all DEFINE_TIMER() callbacks
  netfilter: ipvs: Convert timers to use timer_setup()
  scsi: qla2xxx: Convert timers to use timer_setup()
  block/aoe: discover_timer: Convert timers to use timer_setup()
  ide: Convert timers to use timer_setup()
  drbd: Convert timers to use timer_setup()
  mailbox: Convert timers to use timer_setup()
  crypto: Convert timers to use timer_setup()
  drivers/pcmcia: omap1: Fix error in automated timer conversion
  ARM: footbridge: Fix typo in timer conversion
  drivers/sgi-xp: Convert timers to use timer_setup()
  drivers/pcmcia: Convert timers to use timer_setup()
  drivers/memstick: Convert timers to use timer_setup()
  drivers/macintosh: Convert timers to use timer_setup()
  hwrng/xgene-rng: Convert timers to use timer_setup()
  auxdisplay: Convert timers to use timer_setup()
  sparc/led: Convert timers to use timer_setup()
  mips: ip22/32: Convert timers to use timer_setup()
  ...

1 files changed, 36 insertions, 28 deletions

diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
index ad5b25b89699..8289ee482f49 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -330,10 +330,10 @@ static void pvr2_hdw_state_log_state(struct pvr2_hdw *);
 static int pvr2_hdw_cmd_usbstream(struct pvr2_hdw *hdw,int runFl);
 static int pvr2_hdw_commit_setup(struct pvr2_hdw *hdw);
 static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw);
-static void pvr2_hdw_quiescent_timeout(unsigned long);
-static void pvr2_hdw_decoder_stabilization_timeout(unsigned long);
-static void pvr2_hdw_encoder_wait_timeout(unsigned long);
-static void pvr2_hdw_encoder_run_timeout(unsigned long);
+static void pvr2_hdw_quiescent_timeout(struct timer_list *);
+static void pvr2_hdw_decoder_stabilization_timeout(struct timer_list *);
+static void pvr2_hdw_encoder_wait_timeout(struct timer_list *);
+static void pvr2_hdw_encoder_run_timeout(struct timer_list *);
 static int pvr2_issue_simple_cmd(struct pvr2_hdw *,u32);
 static int pvr2_send_request_ex(struct pvr2_hdw *hdw,
 				unsigned int timeout,int probe_fl,
@@ -2373,18 +2373,15 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf,
 	}
 	if (!hdw) goto fail;
 
-	setup_timer(&hdw->quiescent_timer, pvr2_hdw_quiescent_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->quiescent_timer, pvr2_hdw_quiescent_timeout, 0);
 
-	setup_timer(&hdw->decoder_stabilization_timer,
-		    pvr2_hdw_decoder_stabilization_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->decoder_stabilization_timer,
+		    pvr2_hdw_decoder_stabilization_timeout, 0);
 
-	setup_timer(&hdw->encoder_wait_timer, pvr2_hdw_encoder_wait_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->encoder_wait_timer, pvr2_hdw_encoder_wait_timeout,
+		    0);
 
-	setup_timer(&hdw->encoder_run_timer, pvr2_hdw_encoder_run_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->encoder_run_timer, pvr2_hdw_encoder_run_timeout, 0);
 
 	hdw->master_state = PVR2_STATE_DEAD;
 
@@ -3539,10 +3536,16 @@ static void pvr2_ctl_read_complete(struct urb *urb)
 	complete(&hdw->ctl_done);
 }
 
+struct hdw_timer {
+	struct timer_list timer;
+	struct pvr2_hdw *hdw;
+};
 
-static void pvr2_ctl_timeout(unsigned long data)
+static void pvr2_ctl_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct hdw_timer *timer = from_timer(timer, t, timer);
+	struct pvr2_hdw *hdw = timer->hdw;
+
 	if (hdw->ctl_write_pend_flag || hdw->ctl_read_pend_flag) {
 		hdw->ctl_timeout_flag = !0;
 		if (hdw->ctl_write_pend_flag)
@@ -3564,7 +3567,10 @@ static int pvr2_send_request_ex(struct pvr2_hdw *hdw,
 {
 	unsigned int idx;
 	int status = 0;
-	struct timer_list timer;
+	struct hdw_timer timer = {
+		.hdw = hdw,
+	};
+
 	if (!hdw->ctl_lock_held) {
 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
 			   "Attempted to execute control transfer without lock!!");
@@ -3621,8 +3627,8 @@ static int pvr2_send_request_ex(struct pvr2_hdw *hdw,
 	hdw->ctl_timeout_flag = 0;
 	hdw->ctl_write_pend_flag = 0;
 	hdw->ctl_read_pend_flag = 0;
-	setup_timer(&timer, pvr2_ctl_timeout, (unsigned long)hdw);
-	timer.expires = jiffies + timeout;
+	timer_setup_on_stack(&timer.timer, pvr2_ctl_timeout, 0);
+	timer.timer.expires = jiffies + timeout;
 
 	if (write_len && write_data) {
 		hdw->cmd_debug_state = 2;
@@ -3677,7 +3683,7 @@ status);
 	}
 
 	/* Start timer */
-	add_timer(&timer);
+	add_timer(&timer.timer);
 
 	/* Now wait for all I/O to complete */
 	hdw->cmd_debug_state = 4;
@@ -3687,7 +3693,7 @@ status);
 	hdw->cmd_debug_state = 5;
 
 	/* Stop timer */
-	del_timer_sync(&timer);
+	del_timer_sync(&timer.timer);
 
 	hdw->cmd_debug_state = 6;
 	status = 0;
@@ -3769,6 +3775,8 @@ status);
 	if ((status < 0) && (!probe_fl)) {
 		pvr2_hdw_render_useless(hdw);
 	}
+	destroy_timer_on_stack(&timer.timer);
+
 	return status;
 }
 
@@ -4366,9 +4374,9 @@ static int state_eval_encoder_run(struct pvr2_hdw *hdw)
 
 
 /* Timeout function for quiescent timer. */
-static void pvr2_hdw_quiescent_timeout(unsigned long data)
+static void pvr2_hdw_quiescent_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, quiescent_timer);
 	hdw->state_decoder_quiescent = !0;
 	trace_stbit("state_decoder_quiescent",hdw->state_decoder_quiescent);
 	hdw->state_stale = !0;
@@ -4377,9 +4385,9 @@ static void pvr2_hdw_quiescent_timeout(unsigned long data)
 
 
 /* Timeout function for decoder stabilization timer. */
-static void pvr2_hdw_decoder_stabilization_timeout(unsigned long data)
+static void pvr2_hdw_decoder_stabilization_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, decoder_stabilization_timer);
 	hdw->state_decoder_ready = !0;
 	trace_stbit("state_decoder_ready", hdw->state_decoder_ready);
 	hdw->state_stale = !0;
@@ -4388,9 +4396,9 @@ static void pvr2_hdw_decoder_stabilization_timeout(unsigned long data)
 
 
 /* Timeout function for encoder wait timer. */
-static void pvr2_hdw_encoder_wait_timeout(unsigned long data)
+static void pvr2_hdw_encoder_wait_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, encoder_wait_timer);
 	hdw->state_encoder_waitok = !0;
 	trace_stbit("state_encoder_waitok",hdw->state_encoder_waitok);
 	hdw->state_stale = !0;
@@ -4399,9 +4407,9 @@ static void pvr2_hdw_encoder_wait_timeout(unsigned long data)
 
 
 /* Timeout function for encoder run timer. */
-static void pvr2_hdw_encoder_run_timeout(unsigned long data)
+static void pvr2_hdw_encoder_run_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, encoder_run_timer);
 	if (!hdw->state_encoder_runok) {
 		hdw->state_encoder_runok = !0;
 		trace_stbit("state_encoder_runok",hdw->state_encoder_runok);