Merge tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer cleanups from Thomas Gleixner:
"A treewide hrtimer timer cleanup

hrtimers are initialized with hrtimer_init() and a subsequent store to
the callback pointer. This turned out to be suboptimal for the
upcoming Rust integration and is obviously a silly implementation to
begin with.

This cleanup replaces the hrtimer_init(T); T->function = cb; sequence
with hrtimer_setup(T, cb);

The conversion was done with Coccinelle and a few manual fixups.

Once the conversion has completely landed in mainline, hrtimer_init()
will be removed and the hrtimer::function becomes a private member"

* tag 'timers-cleanups-2025-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (100 commits)
wifi: rt2x00: Switch to use hrtimer_update_function()
io_uring: Use helper function hrtimer_update_function()
serial: xilinx_uartps: Use helper function hrtimer_update_function()
ASoC: fsl: imx-pcm-fiq: Switch to use hrtimer_setup()
RDMA: Switch to use hrtimer_setup()
virtio: mem: Switch to use hrtimer_setup()
drm/vmwgfx: Switch to use hrtimer_setup()
drm/xe/oa: Switch to use hrtimer_setup()
drm/vkms: Switch to use hrtimer_setup()
drm/msm: Switch to use hrtimer_setup()
drm/i915/request: Switch to use hrtimer_setup()
drm/i915/uncore: Switch to use hrtimer_setup()
drm/i915/pmu: Switch to use hrtimer_setup()
drm/i915/perf: Switch to use hrtimer_setup()
drm/i915/gvt: Switch to use hrtimer_setup()
drm/i915/huc: Switch to use hrtimer_setup()
drm/amdgpu: Switch to use hrtimer_setup()
stm class: heartbeat: Switch to use hrtimer_setup()
i2c: Switch to use hrtimer_setup()
iio: Switch to use hrtimer_setup()
...

arch/arm/mach-imx/mmdc.c

···
 	pmu_mmdc->mmdc_ipg_clk = mmdc_ipg_clk;
 	pmu_mmdc->devtype_data = device_get_match_data(&pdev->dev);
 
-	hrtimer_init(&pmu_mmdc->hrtimer, CLOCK_MONOTONIC,
-			HRTIMER_MODE_REL);
-	pmu_mmdc->hrtimer.function = mmdc_pmu_timer_handler;
+	hrtimer_setup(&pmu_mmdc->hrtimer, mmdc_pmu_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	cpumask_set_cpu(raw_smp_processor_id(), &pmu_mmdc->cpu);
 

arch/arm/mm/cache-l2x0-pmu.c

···
 	 * at higher frequencies.
 	 */
 	l2x0_pmu_poll_period = ms_to_ktime(1000);
-	hrtimer_init(&l2x0_pmu_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	l2x0_pmu_hrtimer.function = l2x0_pmu_poll;
+	hrtimer_setup(&l2x0_pmu_hrtimer, l2x0_pmu_poll, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	cpumask_set_cpu(0, &pmu_cpu);
 	ret = cpuhp_setup_state_nocalls(CPUHP_AP_PERF_ARM_L2X0_ONLINE,

arch/arm64/kvm/arch_timer.c

···
 	else
 		ctxt->offset.vm_offset = &kvm->arch.timer_data.poffset;
 
-	hrtimer_init(&ctxt->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
-	ctxt->hrtimer.function = kvm_hrtimer_expire;
+	hrtimer_setup(&ctxt->hrtimer, kvm_hrtimer_expire, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
 
 	switch (timerid) {
 	case TIMER_PTIMER:
···
 		timer_set_offset(vcpu_ptimer(vcpu), 0);
 	}
 
-	hrtimer_init(&timer->bg_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
-	timer->bg_timer.function = kvm_bg_timer_expire;
+	hrtimer_setup(&timer->bg_timer, kvm_bg_timer_expire, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_HARD);
 }
 
 void kvm_timer_init_vm(struct kvm *kvm)

arch/loongarch/kvm/vcpu.c

···
 	vcpu->arch.vpid = 0;
 	vcpu->arch.flush_gpa = INVALID_GPA;
 
-	hrtimer_init(&vcpu->arch.swtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
-	vcpu->arch.swtimer.function = kvm_swtimer_wakeup;
+	hrtimer_setup(&vcpu->arch.swtimer, kvm_swtimer_wakeup, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_PINNED_HARD);
 
 	vcpu->arch.handle_exit = kvm_handle_exit;
 	vcpu->arch.guest_eentry = (unsigned long)kvm_loongarch_ops->exc_entry;

arch/mips/kvm/mips.c

···
 	if (err)
 		return err;
 
-	hrtimer_init(&vcpu->arch.comparecount_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	vcpu->arch.comparecount_timer.function = kvm_mips_comparecount_wakeup;
+	hrtimer_setup(&vcpu->arch.comparecount_timer, kvm_mips_comparecount_wakeup, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	/*
 	 * Allocate space for host mode exception handlers that handle

arch/powerpc/kernel/watchdog.c

···
 
 	*this_cpu_ptr(&wd_timer_tb) = get_tb();
 
-	hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	hrtimer->function = watchdog_timer_fn;
+	hrtimer_setup(hrtimer, watchdog_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	hrtimer_start(hrtimer, ms_to_ktime(wd_timer_period_ms),
 		      HRTIMER_MODE_REL_PINNED);
 }

arch/powerpc/kvm/powerpc.c

···
 {
 	int err;
 
-	hrtimer_init(&vcpu->arch.dec_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
-	vcpu->arch.dec_timer.function = kvmppc_decrementer_wakeup;
+	hrtimer_setup(&vcpu->arch.dec_timer, kvmppc_decrementer_wakeup, CLOCK_REALTIME,
+		      HRTIMER_MODE_ABS);
 
 #ifdef CONFIG_KVM_EXIT_TIMING
 	mutex_init(&vcpu->arch.exit_timing_lock);

arch/riscv/kvm/vcpu_timer.c

···
 	if (t->init_done)
 		return -EINVAL;
 
-	hrtimer_init(&t->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	t->init_done = true;
 	t->next_set = false;
 
 	/* Enable sstc for every vcpu if available in hardware */
 	if (riscv_isa_extension_available(NULL, SSTC)) {
 		t->sstc_enabled = true;
-		t->hrt.function = kvm_riscv_vcpu_vstimer_expired;
+		hrtimer_setup(&t->hrt, kvm_riscv_vcpu_vstimer_expired, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 		t->timer_next_event = kvm_riscv_vcpu_update_vstimecmp;
 	} else {
 		t->sstc_enabled = false;
-		t->hrt.function = kvm_riscv_vcpu_hrtimer_expired;
+		hrtimer_setup(&t->hrt, kvm_riscv_vcpu_hrtimer_expired, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 		t->timer_next_event = kvm_riscv_vcpu_update_hrtimer;
 	}
 

arch/s390/kvm/interrupt.c

···
 	gi->alert.mask = 0;
 	spin_lock_init(&gi->alert.ref_lock);
 	gi->expires = 50 * 1000; /* 50 usec */
-	hrtimer_init(&gi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	gi->timer.function = gisa_vcpu_kicker;
+	hrtimer_setup(&gi->timer, gisa_vcpu_kicker, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	memset(gi->origin, 0, sizeof(struct kvm_s390_gisa));
 	gi->origin->next_alert = (u32)virt_to_phys(gi->origin);
 	VM_EVENT(kvm, 3, "gisa 0x%pK initialized", gi->origin);

arch/s390/kvm/kvm-s390.c

···
 		if (rc)
 			return rc;
 	}
-	hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup;
+	hrtimer_setup(&vcpu->arch.ckc_timer, kvm_s390_idle_wakeup, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	vcpu->arch.sie_block->hpid = HPID_KVM;
 

arch/x86/events/intel/uncore.c

···
 
 static void uncore_pmu_init_hrtimer(struct intel_uncore_box *box)
 {
-	hrtimer_init(&box->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	box->hrtimer.function = uncore_pmu_hrtimer;
+	hrtimer_setup(&box->hrtimer, uncore_pmu_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 }
 
 static struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type,

arch/x86/events/rapl.c

···
 {
 	struct hrtimer *hr = &rapl_pmu->hrtimer;
 
-	hrtimer_init(hr, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	hr->function = rapl_hrtimer_handle;
+	hrtimer_setup(hr, rapl_hrtimer_handle, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 }
 
 static void __rapl_pmu_event_start(struct rapl_pmu *rapl_pmu,

arch/x86/kvm/hyperv.c

···
 {
 	memset(stimer, 0, sizeof(*stimer));
 	stimer->index = timer_index;
-	hrtimer_init(&stimer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	stimer->timer.function = stimer_timer_callback;
+	hrtimer_setup(&stimer->timer, stimer_timer_callback, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 	stimer_prepare_msg(stimer);
 }
 

arch/x86/kvm/i8254.c

···
 	pit->kvm = kvm;
 
 	pit_state = &pit->pit_state;
-	hrtimer_init(&pit_state->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	pit_state->timer.function = pit_timer_fn;
+	hrtimer_setup(&pit_state->timer, pit_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	pit_state->irq_ack_notifier.gsi = 0;
 	pit_state->irq_ack_notifier.irq_acked = kvm_pit_ack_irq;

arch/x86/kvm/lapic.c

···
 
 	apic->nr_lvt_entries = kvm_apic_calc_nr_lvt_entries(vcpu);
 
-	hrtimer_init(&apic->lapic_timer.timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_ABS_HARD);
-	apic->lapic_timer.timer.function = apic_timer_fn;
+	hrtimer_setup(&apic->lapic_timer.timer, apic_timer_fn, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_HARD);
 	if (lapic_timer_advance)
 		apic->lapic_timer.timer_advance_ns = LAPIC_TIMER_ADVANCE_NS_INIT;
 

arch/x86/kvm/vmx/nested.c

···
 	if (enable_shadow_vmcs && !alloc_shadow_vmcs(vcpu))
 		goto out_shadow_vmcs;
 
-	hrtimer_init(&vmx->nested.preemption_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_ABS_PINNED);
-	vmx->nested.preemption_timer.function = vmx_preemption_timer_fn;
+	hrtimer_setup(&vmx->nested.preemption_timer, vmx_preemption_timer_fn, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_PINNED);
 
 	vmx->nested.vpid02 = allocate_vpid();
 

arch/x86/kvm/xen.c

···
 	vcpu->arch.xen.poll_evtchn = 0;
 
 	timer_setup(&vcpu->arch.xen.poll_timer, cancel_evtchn_poll, 0);
-	hrtimer_init(&vcpu->arch.xen.timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
-	vcpu->arch.xen.timer.function = xen_timer_callback;
+	hrtimer_setup(&vcpu->arch.xen.timer, xen_timer_callback, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_HARD);
 
 	kvm_gpc_init(&vcpu->arch.xen.runstate_cache, vcpu->kvm);
 	kvm_gpc_init(&vcpu->arch.xen.runstate2_cache, vcpu->kvm);

block/bfq-iosched.c

···
 
 	INIT_LIST_HEAD(&bfqd->dispatch);
 
-	hrtimer_init(&bfqd->idle_slice_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	bfqd->idle_slice_timer.function = bfq_idle_slice_timer;
+	hrtimer_setup(&bfqd->idle_slice_timer, bfq_idle_slice_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	bfqd->queue_weights_tree = RB_ROOT_CACHED;
 #ifdef CONFIG_BFQ_GROUP_IOSCHED

block/blk-iocost.c

···
 	iocg->hweight_inuse = WEIGHT_ONE;
 
 	init_waitqueue_head(&iocg->waitq);
-	hrtimer_init(&iocg->waitq_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	iocg->waitq_timer.function = iocg_waitq_timer_fn;
+	hrtimer_setup(&iocg->waitq_timer, iocg_waitq_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	iocg->level = blkg->blkcg->css.cgroup->level;
 

drivers/ata/pata_octeon_cf.c

···
 		ap->mwdma_mask	= enable_dma ? ATA_MWDMA4 : 0;
 
 		/* True IDE mode needs a timer to poll for not-busy.  */
-		hrtimer_init(&cf_port->delayed_finish, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL);
-		cf_port->delayed_finish.function = octeon_cf_delayed_finish;
+		hrtimer_setup(&cf_port->delayed_finish, octeon_cf_delayed_finish, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	} else {
 		/* 16 bit but not True IDE */
 		base = cs0 + 0x800;

drivers/base/power/runtime.c

···
 	INIT_WORK(&dev->power.work, pm_runtime_work);
 
 	dev->power.timer_expires = 0;
-	hrtimer_init(&dev->power.suspend_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	dev->power.suspend_timer.function = pm_suspend_timer_fn;
+	hrtimer_setup(&dev->power.suspend_timer, pm_suspend_timer_fn, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS);
 
 	init_waitqueue_head(&dev->power.wait_queue);
 }

drivers/block/null_blk/main.c

···
 {
 	ktime_t timer_interval = ktime_set(0, TIMER_INTERVAL);
 
-	hrtimer_init(&nullb->bw_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	nullb->bw_timer.function = nullb_bwtimer_fn;
+	hrtimer_setup(&nullb->bw_timer, nullb_bwtimer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	atomic_long_set(&nullb->cur_bytes, mb_per_tick(nullb->dev->mbps));
 	hrtimer_start(&nullb->bw_timer, timer_interval, HRTIMER_MODE_REL);
 }
···
 	might_sleep_if(hctx->flags & BLK_MQ_F_BLOCKING);
 
 	if (!is_poll && nq->dev->irqmode == NULL_IRQ_TIMER) {
-		hrtimer_init(&cmd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		cmd->timer.function = null_cmd_timer_expired;
+		hrtimer_setup(&cmd->timer, null_cmd_timer_expired, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 	cmd->error = BLK_STS_OK;
 	cmd->nq = nq;

drivers/char/hw_random/timeriomem-rng.c

···
 
 	priv->period = ns_to_ktime(period * NSEC_PER_USEC);
 	init_completion(&priv->completion);
-	hrtimer_init(&priv->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	priv->timer.function = timeriomem_rng_trigger;
+	hrtimer_setup(&priv->timer, timeriomem_rng_trigger, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	priv->rng_ops.name = dev_name(&pdev->dev);
 	priv->rng_ops.read = timeriomem_rng_read;

drivers/devfreq/event/rockchip-dfi.c

···
 	if (ret)
 		return ret;
 
-	hrtimer_init(&dfi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	dfi->timer.function = rockchip_dfi_timer;
+	hrtimer_setup(&dfi->timer, rockchip_dfi_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	switch (dfi->ddr_type) {
 	case ROCKCHIP_DDRTYPE_LPDDR2:

drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c

···
 	amdgpu_crtc->connector = NULL;
 	amdgpu_crtc->vsync_timer_enabled = AMDGPU_IRQ_STATE_DISABLE;
 
-	hrtimer_init(&amdgpu_crtc->vblank_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	amdgpu_crtc->vblank_timer.function = &amdgpu_vkms_vblank_simulate;
+	hrtimer_setup(&amdgpu_crtc->vblank_timer, &amdgpu_vkms_vblank_simulate, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	return ret;
 }

drivers/gpu/drm/i915/gt/uc/intel_huc.c

···
 			   sw_fence_dummy_notify);
 	i915_sw_fence_commit(&huc->delayed_load.fence);
 
-	hrtimer_init(&huc->delayed_load.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	huc->delayed_load.timer.function = huc_delayed_load_timer_callback;
+	hrtimer_setup(&huc->delayed_load.timer, huc_delayed_load_timer_callback, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 }
 
 static void delayed_huc_load_fini(struct intel_huc *huc)

drivers/gpu/drm/i915/gvt/display.c

···
 	vgpu->display.port_num = port_num;
 
 	/* Init hrtimer based on default refresh rate */
-	hrtimer_init(&vblank_timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	vblank_timer->timer.function = vblank_timer_fn;
+	hrtimer_setup(&vblank_timer->timer, vblank_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 	vblank_timer->vrefresh_k = port->vrefresh_k;
 	vblank_timer->period = DIV64_U64_ROUND_CLOSEST(NSEC_PER_SEC * MSEC_PER_SEC, vblank_timer->vrefresh_k);
 

drivers/gpu/drm/i915/gvt/sched_policy.c

···
 		return -ENOMEM;
 
 	INIT_LIST_HEAD(&data->lru_runq_head);
-	hrtimer_init(&data->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	data->timer.function = tbs_timer_fn;
+	hrtimer_setup(&data->timer, tbs_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 	data->period = GVT_DEFAULT_TIME_SLICE;
 	data->gvt = gvt;
 

drivers/gpu/drm/i915/i915_perf.c

···
 		"opening stream oa config uuid=%s\n",
 		  stream->oa_config->uuid);
 
-	hrtimer_init(&stream->poll_check_timer,
-		     CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	stream->poll_check_timer.function = oa_poll_check_timer_cb;
+	hrtimer_setup(&stream->poll_check_timer, oa_poll_check_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	init_waitqueue_head(&stream->poll_wq);
 	spin_lock_init(&stream->oa_buffer.ptr_lock);
 	mutex_init(&stream->lock);

drivers/gpu/drm/i915/i915_pmu.c

···
 	int ret = -ENOMEM;
 
 	spin_lock_init(&pmu->lock);
-	hrtimer_init(&pmu->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	pmu->timer.function = i915_sample;
+	hrtimer_setup(&pmu->timer, i915_sample, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	pmu->cpuhp.cpu = -1;
 	init_rc6(pmu);
 

drivers/gpu/drm/i915/i915_request.c

···
 {
 	struct i915_request_watchdog *wdg = &rq->watchdog;
 
-	hrtimer_init(&wdg->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	wdg->timer.function = __rq_watchdog_expired;
+	hrtimer_setup(&wdg->timer, __rq_watchdog_expired, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 }
 
 static void __rq_arm_watchdog(struct i915_request *rq)

drivers/gpu/drm/i915/intel_uncore.c

···
 
 	d->mask = BIT(domain_id);
 
-	hrtimer_init(&d->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	d->timer.function = intel_uncore_fw_release_timer;
+	hrtimer_setup(&d->timer, intel_uncore_fw_release_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	uncore->fw_domains |= BIT(domain_id);
 

drivers/gpu/drm/msm/msm_fence.c

···
 	fctx->completed_fence = fctx->last_fence;
 	*fctx->fenceptr = fctx->last_fence;
 
-	hrtimer_init(&fctx->deadline_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	fctx->deadline_timer.function = deadline_timer;
+	hrtimer_setup(&fctx->deadline_timer, deadline_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	kthread_init_work(&fctx->deadline_work, deadline_work);
 

drivers/gpu/drm/msm/msm_io_utils.c

···
 			   clockid_t clock_id,
 			   enum hrtimer_mode mode)
 {
-	hrtimer_init(&work->timer, clock_id, mode);
-	work->timer.function = msm_hrtimer_worktimer;
+	hrtimer_setup(&work->timer, msm_hrtimer_worktimer, clock_id, mode);
 	work->worker = worker;
 	kthread_init_work(&work->work, fn);
 }

drivers/gpu/drm/vkms/vkms_crtc.c

···
 	struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc);
 	struct vkms_output *out = drm_crtc_to_vkms_output(crtc);
 
-	hrtimer_init(&out->vblank_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	out->vblank_hrtimer.function = &vkms_vblank_simulate;
+	hrtimer_setup(&out->vblank_hrtimer, &vkms_vblank_simulate, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	out->period_ns = ktime_set(0, vblank->framedur_ns);
 	hrtimer_start(&out->vblank_hrtimer, out->period_ns, HRTIMER_MODE_REL);
 

drivers/gpu/drm/vmwgfx/vmwgfx_vkms.c

···
 
 	drm_calc_timestamping_constants(crtc, &crtc->mode);
 
-	hrtimer_init(&du->vkms.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	du->vkms.timer.function = &vmw_vkms_vblank_simulate;
+	hrtimer_setup(&du->vkms.timer, &vmw_vkms_vblank_simulate, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	du->vkms.period_ns = ktime_set(0, vblank->framedur_ns);
 	hrtimer_start(&du->vkms.timer, du->vkms.period_ns, HRTIMER_MODE_REL);
 

drivers/gpu/drm/xe/xe_oa.c

···
 
 	WRITE_ONCE(u->exclusive_stream, stream);
 
-	hrtimer_init(&stream->poll_check_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	stream->poll_check_timer.function = xe_oa_poll_check_timer_cb;
+	hrtimer_setup(&stream->poll_check_timer, xe_oa_poll_check_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	init_waitqueue_head(&stream->poll_wq);
 
 	spin_lock_init(&stream->oa_buffer.ptr_lock);

drivers/hwtracing/stm/heartbeat.c

···
 		stm_heartbeat[i].data.type	= STM_USER;
 		stm_heartbeat[i].data.link	= stm_heartbeat_link;
 		stm_heartbeat[i].data.unlink	= stm_heartbeat_unlink;
-		hrtimer_init(&stm_heartbeat[i].hrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_ABS);
-		stm_heartbeat[i].hrtimer.function =
-			stm_heartbeat_hrtimer_handler;
+		hrtimer_setup(&stm_heartbeat[i].hrtimer, stm_heartbeat_hrtimer_handler,
+			      CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 		ret = stm_source_register_device(NULL, &stm_heartbeat[i].data);
 		if (ret)

drivers/i2c/busses/i2c-imx.c

···
 		return -ENOMEM;
 
 	spin_lock_init(&i2c_imx->slave_lock);
-	hrtimer_init(&i2c_imx->slave_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	i2c_imx->slave_timer.function = i2c_imx_slave_timeout;
+	hrtimer_setup(&i2c_imx->slave_timer, i2c_imx_slave_timeout, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS);
 
 	match = device_get_match_data(&pdev->dev);
 	if (match)

drivers/iio/adc/ti-tsc2046.c

···
 
 	spin_lock_init(&priv->state_lock);
 	priv->state = TSC2046_STATE_SHUTDOWN;
-	hrtimer_init(&priv->trig_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL_SOFT);
-	priv->trig_timer.function = tsc2046_adc_timer;
+	hrtimer_setup(&priv->trig_timer, tsc2046_adc_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
 
 	ret = devm_iio_trigger_register(dev, trig);
 	if (ret) {

drivers/iio/trigger/iio-trig-hrtimer.c

···
 	trig_info->swt.trigger->ops = &iio_hrtimer_trigger_ops;
 	trig_info->swt.trigger->dev.groups = iio_hrtimer_attr_groups;
 
-	hrtimer_init(&trig_info->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	trig_info->timer.function = iio_hrtimer_trig_handler;
+	hrtimer_setup(&trig_info->timer, iio_hrtimer_trig_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_HARD);
 
 	trig_info->sampling_frequency[0] = HRTIMER_DEFAULT_SAMPLING_FREQUENCY;
 	trig_info->period = NSEC_PER_SEC / trig_info->sampling_frequency[0];

drivers/infiniband/hw/hfi1/init.c

···
 	spin_lock_init(&ppd->cca_timer_lock);
 
 	for (i = 0; i < OPA_MAX_SLS; i++) {
-		hrtimer_init(&ppd->cca_timer[i].hrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL);
 		ppd->cca_timer[i].ppd = ppd;
 		ppd->cca_timer[i].sl = i;
 		ppd->cca_timer[i].ccti = 0;
-		ppd->cca_timer[i].hrtimer.function = cca_timer_fn;
+		hrtimer_setup(&ppd->cca_timer[i].hrtimer, cca_timer_fn, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 
 	ppd->cc_max_table_entries = IB_CC_TABLE_CAP_DEFAULT;

drivers/infiniband/sw/rdmavt/qp.c

···
 		}
 		/* initialize timers needed for rc qp */
 		timer_setup(&qp->s_timer, rvt_rc_timeout, 0);
-		hrtimer_init(&qp->s_rnr_timer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL);
-		qp->s_rnr_timer.function = rvt_rc_rnr_retry;
+		hrtimer_setup(&qp->s_rnr_timer, rvt_rc_rnr_retry, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 
 		/*
 		 * Driver needs to set up it's private QP structure and do any

drivers/leds/trigger/ledtrig-pattern.c

···
 	data->led_cdev = led_cdev;
 	led_set_trigger_data(led_cdev, data);
 	timer_setup(&data->timer, pattern_trig_timer_function, 0);
-	hrtimer_init(&data->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	data->hrtimer.function = pattern_trig_hrtimer_function;
+	hrtimer_setup(&data->hrtimer, pattern_trig_hrtimer_function, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	led_cdev->activated = true;
 
 	if (led_cdev->flags & LED_INIT_DEFAULT_TRIGGER) {

drivers/mailbox/mailbox.c

···
 			return -EINVAL;
 		}
 
-		hrtimer_init(&mbox->poll_hrt, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL);
-		mbox->poll_hrt.function = txdone_hrtimer;
+		hrtimer_setup(&mbox->poll_hrt, txdone_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 		spin_lock_init(&mbox->poll_hrt_lock);
 	}
 

drivers/media/cec/core/cec-pin.c

···
 	if (pin == NULL)
 		return ERR_PTR(-ENOMEM);
 	pin->ops = pin_ops;
-	hrtimer_init(&pin->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	atomic_set(&pin->work_pin_num_events, 0);
-	pin->timer.function = cec_pin_timer;
+	hrtimer_setup(&pin->timer, cec_pin_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	init_waitqueue_head(&pin->kthread_waitq);
 	pin->tx_custom_low_usecs = CEC_TIM_CUSTOM_DEFAULT;
 	pin->tx_custom_high_usecs = CEC_TIM_CUSTOM_DEFAULT;

drivers/media/pci/cx88/cx88-input.c

···
 	ir = core->ir;
 
 	if (ir->polling) {
-		hrtimer_init(&ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		ir->timer.function = cx88_ir_work;
+		hrtimer_setup(&ir->timer, cx88_ir_work, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 		hrtimer_start(&ir->timer,
 			      ktime_set(0, ir->polling * 1000000),
 			      HRTIMER_MODE_REL);

drivers/media/platform/chips-media/wave5/wave5-vpu.c

···
 	dev->irq = platform_get_irq(pdev, 0);
 	if (dev->irq < 0) {
 		dev_err(&pdev->dev, "failed to get irq resource, falling back to polling\n");
-		hrtimer_init(&dev->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
-		dev->hrtimer.function = &wave5_vpu_timer_callback;
+		hrtimer_setup(&dev->hrtimer, &wave5_vpu_timer_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_PINNED);
 		dev->worker = kthread_run_worker(0, "vpu_irq_thread");
 		if (IS_ERR(dev->worker)) {
 			dev_err(&pdev->dev, "failed to create vpu irq worker\n");

drivers/media/rc/pwm-ir-tx.c

···
 		rcdev->tx_ir = pwm_ir_tx_sleep;
 	} else {
 		init_completion(&pwm_ir->tx_done);
-		hrtimer_init(&pwm_ir->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		pwm_ir->timer.function = pwm_ir_timer;
+		hrtimer_setup(&pwm_ir->timer, pwm_ir_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 		rcdev->tx_ir = pwm_ir_tx_atomic;
 	}
 

drivers/misc/vcpu_stall_detector.c

···
 	ping_timeout_ms = vcpu_stall_config.stall_timeout_sec *
 			  MSEC_PER_SEC / 2;
 
-	hrtimer_init(vcpu_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	vcpu_hrtimer->function = vcpu_stall_detect_timer_fn;
+	hrtimer_setup(vcpu_hrtimer, vcpu_stall_detect_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	vcpu_stall_detector->is_initialized = true;
 
 	hrtimer_start(vcpu_hrtimer, ms_to_ktime(ping_timeout_ms),

drivers/mmc/host/dw_mmc.c

···
 {
 	host->fail_data_crc = (struct fault_attr) FAULT_ATTR_INITIALIZER;
 
-	hrtimer_init(&host->fault_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	host->fault_timer.function = dw_mci_fault_timer;
+	hrtimer_setup(&host->fault_timer, dw_mci_fault_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 }
 #else
 static void dw_mci_init_fault(struct dw_mci *host)

drivers/net/can/m_can/m_can.c

···
 
 	if (!cdev->net->irq) {
 		dev_dbg(cdev->dev, "Polling enabled, initialize hrtimer");
-		hrtimer_init(&cdev->hrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL_PINNED);
-		cdev->hrtimer.function = &hrtimer_callback;
+		hrtimer_setup(&cdev->hrtimer, &hrtimer_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_PINNED);
 	} else {
-		hrtimer_init(&cdev->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		cdev->hrtimer.function = m_can_coalescing_timer;
+		hrtimer_setup(&cdev->hrtimer, m_can_coalescing_timer, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 
 	ret = m_can_dev_setup(cdev);

drivers/net/can/spi/mcp251xfd/mcp251xfd-ring.c

···
 	}
 	priv->rx_ring_num = i;
 
-	hrtimer_init(&priv->rx_irq_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	priv->rx_irq_timer.function = mcp251xfd_rx_irq_timer;
+	hrtimer_setup(&priv->rx_irq_timer, mcp251xfd_rx_irq_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
-	hrtimer_init(&priv->tx_irq_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	priv->tx_irq_timer.function = mcp251xfd_tx_irq_timer;
+	hrtimer_setup(&priv->tx_irq_timer, mcp251xfd_tx_irq_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	return 0;
 }

drivers/net/ethernet/cortina/gemini.c

···
 	gmac_enable_tx_rx(netdev);
 	netif_tx_start_all_queues(netdev);
 
-	hrtimer_init(&port->rx_coalesce_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	port->rx_coalesce_timer.function = &gmac_coalesce_delay_expired;
+	hrtimer_setup(&port->rx_coalesce_timer, &gmac_coalesce_delay_expired, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	netdev_dbg(netdev, "opened\n");
 

drivers/net/ethernet/ec_bhf.c

···
 
 	netif_start_queue(net_dev);
 
-	hrtimer_init(&priv->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	priv->hrtimer.function = ec_bhf_timer_fun;
+	hrtimer_setup(&priv->hrtimer, ec_bhf_timer_fun, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	hrtimer_start(&priv->hrtimer, polling_frequency, HRTIMER_MODE_REL);
 
 	return 0;

drivers/net/ethernet/freescale/fec_ptp.c

···
 
 	INIT_DELAYED_WORK(&fep->time_keep, fec_time_keep);
 
-	hrtimer_init(&fep->perout_timer, CLOCK_REALTIME, HRTIMER_MODE_REL);
-	fep->perout_timer.function = fec_ptp_pps_perout_handler;
+	hrtimer_setup(&fep->perout_timer, fec_ptp_pps_perout_handler, CLOCK_REALTIME,
+		      HRTIMER_MODE_REL);
 
 	irq = platform_get_irq_byname_optional(pdev, "pps");
 	if (irq < 0)

drivers/net/ethernet/hisilicon/hip04_eth.c

···
 	priv->chan = arg.args[1] * RX_DESC_NUM;
 	priv->group = arg.args[2];
 
-	hrtimer_init(&priv->tx_coalesce_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-
 	/* BQL will try to keep the TX queue as short as possible, but it can't
 	 * be faster than tx_coalesce_usecs, so we need a fast timeout here,
 	 * but also long enough to gather up enough frames to ensure we don't
···
 	 */
 	priv->tx_coalesce_frames = TX_DESC_NUM * 3 / 4;
 	priv->tx_coalesce_usecs = 200;
-	priv->tx_coalesce_timer.function = tx_done;
+	hrtimer_setup(&priv->tx_coalesce_timer, tx_done, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	priv->map = syscon_node_to_regmap(arg.np);
 	of_node_put(arg.np);

drivers/net/ethernet/intel/igc/igc_main.c

···
 	INIT_WORK(&adapter->reset_task, igc_reset_task);
 	INIT_WORK(&adapter->watchdog_task, igc_watchdog_task);
 
-	hrtimer_init(&adapter->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	adapter->hrtimer.function = &igc_qbv_scheduling_timer;
+	hrtimer_setup(&adapter->hrtimer, &igc_qbv_scheduling_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	/* Initialize link properties that are user-changeable */
 	adapter->fc_autoneg = true;

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

···
 		for (thread = 0; thread < priv->nthreads; thread++) {
 			port_pcpu = per_cpu_ptr(port->pcpu, thread);
 
-			hrtimer_init(&port_pcpu->tx_done_timer, CLOCK_MONOTONIC,
-				     HRTIMER_MODE_REL_PINNED_SOFT);
-			port_pcpu->tx_done_timer.function = mvpp2_hr_timer_cb;
+			hrtimer_setup(&port_pcpu->tx_done_timer, mvpp2_hr_timer_cb, CLOCK_MONOTONIC,
+				      HRTIMER_MODE_REL_PINNED_SOFT);
 			port_pcpu->timer_scheduled = false;
 			port_pcpu->dev = dev;
 		}

drivers/net/ethernet/marvell/octeontx2/af/ptp.c

···
 	spin_lock_init(&ptp->ptp_lock);
 	if (cn10k_ptp_errata(ptp)) {
 		ptp->read_ptp_tstmp = &read_ptp_tstmp_sec_nsec;
-		hrtimer_init(&ptp->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		ptp->hrtimer.function = ptp_reset_thresh;
+		hrtimer_setup(&ptp->hrtimer, ptp_reset_thresh, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	} else {
 		ptp->read_ptp_tstmp = &read_ptp_tstmp_nsec;
 	}

drivers/net/ethernet/microchip/sparx5/sparx5_packet.c

···
 
 void sparx5_port_inj_timer_setup(struct sparx5_port *port)
 {
-	hrtimer_init(&port->inj_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	port->inj_timer.function = sparx5_injection_timeout;
+	hrtimer_setup(&port->inj_timer, sparx5_injection_timeout, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 }

drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c

···
 
 void rmnet_map_tx_aggregate_init(struct rmnet_port *port)
 {
-	hrtimer_init(&port->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	port->hrtimer.function = rmnet_map_flush_tx_packet_queue;
+	hrtimer_setup(&port->hrtimer, rmnet_map_flush_tx_packet_queue, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	spin_lock_init(&port->agg_lock);
 	rmnet_map_update_ul_agg_config(port, 4096, 1, 800);
 	INIT_WORK(&port->agg_wq, rmnet_map_flush_tx_packet_work);

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

···
 		priv->tx_coal_frames[chan] = STMMAC_TX_FRAMES;
 		priv->tx_coal_timer[chan] = STMMAC_COAL_TX_TIMER;
 
-		hrtimer_init(&tx_q->txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		tx_q->txtimer.function = stmmac_tx_timer;
+		hrtimer_setup(&tx_q->txtimer, stmmac_tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	}
 
 	for (chan = 0; chan < rx_channel_count; chan++)
···
 		stmmac_set_tx_tail_ptr(priv, priv->ioaddr,
 				       tx_q->tx_tail_addr, chan);
 
-		hrtimer_init(&tx_q->txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		tx_q->txtimer.function = stmmac_tx_timer;
+		hrtimer_setup(&tx_q->txtimer, stmmac_tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	}
 
 	/* Enable the MAC Rx/Tx */

drivers/net/ethernet/ti/am65-cpsw-nuss.c

···
 	for (i = 0; i < common->tx_ch_num; i++) {
 		tx_chn = &common->tx_chns[i];
 
-		hrtimer_init(&tx_chn->tx_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
-		tx_chn->tx_hrtimer.function = &am65_cpsw_nuss_tx_timer_callback;
+		hrtimer_setup(&tx_chn->tx_hrtimer, &am65_cpsw_nuss_tx_timer_callback,
+			      CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
 
 		netif_napi_add_tx(common->dma_ndev, &tx_chn->napi_tx,
 				  am65_cpsw_nuss_tx_poll);
···
 		snprintf(flow->name,
 			 sizeof(flow->name), "%s-rx%d",
 			 dev_name(dev), i);
-		hrtimer_init(&flow->rx_hrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL_PINNED);
-		flow->rx_hrtimer.function = &am65_cpsw_nuss_rx_timer_callback;
+		hrtimer_setup(&flow->rx_hrtimer, &am65_cpsw_nuss_rx_timer_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_PINNED);
 
 		netif_napi_add(common->dma_ndev, &flow->napi_rx,
 			       am65_cpsw_nuss_rx_poll);

drivers/net/ethernet/ti/icssg/icssg_common.c

···
 		struct prueth_tx_chn *tx_chn = &emac->tx_chns[i];
 
 		netif_napi_add_tx(emac->ndev, &tx_chn->napi_tx, emac_napi_tx_poll);
-		hrtimer_init(&tx_chn->tx_hrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL_PINNED);
-		tx_chn->tx_hrtimer.function = &emac_tx_timer_callback;
+		hrtimer_setup(&tx_chn->tx_hrtimer, &emac_tx_timer_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_PINNED);
 		ret = request_irq(tx_chn->irq, prueth_tx_irq,
 				  IRQF_TRIGGER_HIGH, tx_chn->name,
 				  tx_chn);

drivers/net/ethernet/ti/icssg/icssg_prueth.c

···
 	ndev->hw_features |= NETIF_PRUETH_HSR_OFFLOAD_FEATURES;
 
 	netif_napi_add(ndev, &emac->napi_rx, icssg_napi_rx_poll);
-	hrtimer_init(&emac->rx_hrtimer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL_PINNED);
-	emac->rx_hrtimer.function = &emac_rx_timer_callback;
+	hrtimer_setup(&emac->rx_hrtimer, &emac_rx_timer_callback, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_PINNED);
 	prueth->emac[mac] = emac;
 
 	return 0;

drivers/net/ieee802154/at86rf230.c

···
 	state->trx.tx_buf = state->buf;
 	state->trx.rx_buf = state->buf;
 	spi_message_add_tail(&state->trx, &state->msg);
-	hrtimer_init(&state->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	state->timer.function = at86rf230_async_state_timer;
+	hrtimer_setup(&state->timer, at86rf230_async_state_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 }
 
 static irqreturn_t at86rf230_isr(int irq, void *data)

drivers/net/usb/cdc_ncm.c

···
 
 	ctx->dev = dev;
 
-	hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;
+	hrtimer_setup(&ctx->tx_timer, &cdc_ncm_tx_timer_cb, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	tasklet_setup(&ctx->bh, cdc_ncm_txpath_bh);
 	atomic_set(&ctx->stop, 0);
 	spin_lock_init(&ctx->mtx);

drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c

···
 	};
 	dev->beacon_ops = &beacon_ops;
 
-	hrtimer_init(&dev->pre_tbtt_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	dev->pre_tbtt_timer.function = mt76x02u_pre_tbtt_interrupt;
+	hrtimer_setup(&dev->pre_tbtt_timer, mt76x02u_pre_tbtt_interrupt, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	INIT_WORK(&dev->pre_tbtt_work, mt76x02u_pre_tbtt_work);
 
 	mt76x02_init_beacon_config(dev);

drivers/net/wireless/ralink/rt2x00/rt2800mmio.c

···
 	/*
 	 * Set txstatus timer function.
 	 */
-	rt2x00dev->txstatus_timer.function = rt2800mmio_tx_sta_fifo_timeout;
+	hrtimer_update_function(&rt2x00dev->txstatus_timer, rt2800mmio_tx_sta_fifo_timeout);
 
 	/*
 	 * Overwrite TX done handler

drivers/net/wireless/ralink/rt2x00/rt2800usb.c

···
 	/*
 	 * Set txstatus timer function.
 	 */
-	rt2x00dev->txstatus_timer.function = rt2800usb_tx_sta_fifo_timeout;
+	hrtimer_update_function(&rt2x00dev->txstatus_timer, rt2800usb_tx_sta_fifo_timeout);
 
 	/*
 	 * Overwrite TX done handler

drivers/net/wireless/ralink/rt2x00/rt2x00dev.c

···
 	mutex_init(&rt2x00dev->conf_mutex);
 	INIT_LIST_HEAD(&rt2x00dev->bar_list);
 	spin_lock_init(&rt2x00dev->bar_list_lock);
-	hrtimer_init(&rt2x00dev->txstatus_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
+	hrtimer_setup(&rt2x00dev->txstatus_timer, hrtimer_dummy_timeout, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	set_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags);
 

drivers/net/wireless/virtual/mac80211_hwsim.c

···
 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
 
 	for (i = 0; i < ARRAY_SIZE(data->link_data); i++) {
-		hrtimer_init(&data->link_data[i].beacon_timer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_ABS_SOFT);
-		data->link_data[i].beacon_timer.function =
-			mac80211_hwsim_beacon;
+		hrtimer_setup(&data->link_data[i].beacon_timer, mac80211_hwsim_beacon,
+			      CLOCK_MONOTONIC, HRTIMER_MODE_ABS_SOFT);
 		data->link_data[i].link_id = i;
 	}
 

drivers/net/wwan/iosm/iosm_ipc_imem.c

···
 	/* The phase is set to power off. */
 	ipc_imem->phase = IPC_P_OFF;
 
-	hrtimer_init(&ipc_imem->startup_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	ipc_imem->startup_timer.function = ipc_imem_startup_timer_cb;
+	hrtimer_setup(&ipc_imem->startup_timer, ipc_imem_startup_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
-	hrtimer_init(&ipc_imem->tdupdate_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	ipc_imem->tdupdate_timer.function = ipc_imem_td_update_timer_cb;
+	hrtimer_setup(&ipc_imem->tdupdate_timer, ipc_imem_td_update_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
-	hrtimer_init(&ipc_imem->fast_update_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	ipc_imem->fast_update_timer.function = ipc_imem_fast_update_timer_cb;
+	hrtimer_setup(&ipc_imem->fast_update_timer, ipc_imem_fast_update_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
-	hrtimer_init(&ipc_imem->td_alloc_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	ipc_imem->td_alloc_timer.function = ipc_imem_td_alloc_timer_cb;
+	hrtimer_setup(&ipc_imem->td_alloc_timer, ipc_imem_td_alloc_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
-	hrtimer_init(&ipc_imem->adb_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	ipc_imem->adb_timer.function = ipc_imem_adb_timer_cb;
+	hrtimer_setup(&ipc_imem->adb_timer, ipc_imem_adb_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	if (ipc_imem_config(ipc_imem)) {
 		dev_err(ipc_imem->dev, "failed to initialize the imem");

drivers/ntb/test/ntb_pingpong.c

···
 	pp->ntb = ntb;
 	atomic_set(&pp->count, 0);
 	spin_lock_init(&pp->lock);
-	hrtimer_init(&pp->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	pp->timer.function = pp_timer_func;
+	hrtimer_setup(&pp->timer, pp_timer_func, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	return pp;
 }

drivers/perf/arm-ccn.c

···
 	/* No overflow interrupt? Have to use a timer instead. */
 	if (!ccn->irq) {
 		dev_info(ccn->dev, "No access to interrupts, using timer.\n");
-		hrtimer_init(&ccn->dt.hrtimer, CLOCK_MONOTONIC,
-				HRTIMER_MODE_REL);
-		ccn->dt.hrtimer.function = arm_ccn_pmu_timer_handler;
+		hrtimer_setup(&ccn->dt.hrtimer, arm_ccn_pmu_timer_handler, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 
 	/* Pick one CPU which we will use to collect data from CCN... */

drivers/perf/marvell_cn10k_ddr_pmu.c

···
 	if (!name)
 		return -ENOMEM;
 
-	hrtimer_init(&ddr_pmu->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	ddr_pmu->hrtimer.function = cn10k_ddr_pmu_timer_handler;
+	hrtimer_setup(&ddr_pmu->hrtimer, cn10k_ddr_pmu_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	cpuhp_state_add_instance_nocalls(
 				CPUHP_AP_PERF_ARM_MARVELL_CN10K_DDR_ONLINE,

drivers/perf/thunderx2_pmu.c

···
 	tx2_pmu->cpu = cpu;
 
 	if (tx2_pmu->hrtimer_callback) {
-		hrtimer_init(&tx2_pmu->hrtimer,
-				CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		tx2_pmu->hrtimer.function = tx2_pmu->hrtimer_callback;
+		hrtimer_setup(&tx2_pmu->hrtimer, tx2_pmu->hrtimer_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 
 	ret = tx2_uncore_pmu_register(tx2_pmu);

drivers/power/reset/ltc2952-poweroff.c

···
 	data->wde_interval = 300L * NSEC_PER_MSEC;
 	data->trigger_delay = ktime_set(2, 500L * NSEC_PER_MSEC);
 
-	hrtimer_init(&data->timer_trigger, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	data->timer_trigger.function = ltc2952_poweroff_timer_trigger;
+	hrtimer_setup(&data->timer_trigger, ltc2952_poweroff_timer_trigger, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
-	hrtimer_init(&data->timer_wde, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	data->timer_wde.function = ltc2952_poweroff_timer_wde;
+	hrtimer_setup(&data->timer_wde, ltc2952_poweroff_timer_wde, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 }
 
 static int ltc2952_poweroff_init(struct platform_device *pdev)

drivers/power/supply/ab8500_chargalg.c

···
 	psy_cfg.drv_data = di;
 
 	/* Initilialize safety timer */
-	hrtimer_init(&di->safety_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	di->safety_timer.function = ab8500_chargalg_safety_timer_expired;
+	hrtimer_setup(&di->safety_timer, ab8500_chargalg_safety_timer_expired, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	/* Initilialize maintenance timer */
-	hrtimer_init(&di->maintenance_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	di->maintenance_timer.function =
-		ab8500_chargalg_maintenance_timer_expired;
+	hrtimer_setup(&di->maintenance_timer, ab8500_chargalg_maintenance_timer_expired,
+		      CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	/* Init work for chargalg */
 	INIT_DEFERRABLE_WORK(&di->chargalg_periodic_work,

drivers/powercap/idle_inject.c

···
 		return NULL;
 
 	cpumask_copy(to_cpumask(ii_dev->cpumask), cpumask);
-	hrtimer_init(&ii_dev->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	ii_dev->timer.function = idle_inject_timer_fn;
+	hrtimer_setup(&ii_dev->timer, idle_inject_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	ii_dev->latency_us = UINT_MAX;
 	ii_dev->update = update;
 

drivers/powercap/intel_rapl_common.c

···
 	raw_spin_lock_init(&data->lock);
 	INIT_LIST_HEAD(&data->active_list);
 	data->timer_interval = ms_to_ktime(rapl_pmu.timer_ms);
-	hrtimer_init(&data->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	data->hrtimer.function = rapl_hrtimer_handle;
+	hrtimer_setup(&data->hrtimer, rapl_hrtimer_handle, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	return rapl_pmu_update(rp);
 }

drivers/pps/generators/pps_gen_parport.c

···
 
 	calibrate_port(&device);
 
-	hrtimer_init(&device.timer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
-	device.timer.function = hrtimer_event;
+	hrtimer_setup(&device.timer, hrtimer_event, CLOCK_REALTIME, HRTIMER_MODE_ABS);
 	hrtimer_start(&device.timer, next_intr_time(&device), HRTIMER_MODE_ABS);
 
 	return;

drivers/rtc/class.c

···
 	/* Init uie timer */
 	rtc_timer_init(&rtc->uie_rtctimer, rtc_uie_update_irq, rtc);
 	/* Init pie timer */
-	hrtimer_init(&rtc->pie_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	rtc->pie_timer.function = rtc_pie_update_irq;
+	hrtimer_setup(&rtc->pie_timer, rtc_pie_update_irq, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	rtc->pie_enabled = 0;
 
 	set_bit(RTC_FEATURE_ALARM, rtc->features);

drivers/s390/crypto/ap_bus.c

···
 	 */
 	if (MACHINE_IS_VM)
 		poll_high_timeout = 1500000;
-	hrtimer_init(&ap_poll_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	ap_poll_timer.function = ap_poll_timeout;
+	hrtimer_setup(&ap_poll_timer, ap_poll_timeout, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	queue_work(system_long_wq, &ap_scan_bus_work);
 

drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c

···
 	struct timer_cb *p_timer;
 
 	p_timer = &vscsi->rsp_q_timer;
-	hrtimer_init(&p_timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-
-	p_timer->timer.function = ibmvscsis_service_wait_q;
+	hrtimer_setup(&p_timer->timer, ibmvscsis_service_wait_q, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	p_timer->started = false;
 	p_timer->timer_pops = 0;
 

drivers/scsi/lpfc/lpfc_init.c

···
 	timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
 
 	/* CMF congestion timer */
-	hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	phba->cmf_timer.function = lpfc_cmf_timer;
+	hrtimer_setup(&phba->cmf_timer, lpfc_cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	/* CMF 1 minute stats collection timer */
-	hrtimer_init(&phba->cmf_stats_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	phba->cmf_stats_timer.function = lpfc_cmf_stats_timer;
+	hrtimer_setup(&phba->cmf_stats_timer, lpfc_cmf_stats_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	/*
 	 * Control structure for handling external multi-buffer mailbox

drivers/scsi/scsi_debug.c

···
 
 	sd_dp = &sqcp->sd_dp;
 
-	hrtimer_init(&sd_dp->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
-	sd_dp->hrt.function = sdebug_q_cmd_hrt_complete;
+	hrtimer_setup(&sd_dp->hrt, sdebug_q_cmd_hrt_complete, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_PINNED);
 	INIT_WORK(&sd_dp->ew.work, sdebug_q_cmd_wq_complete);
 
 	sqcp->scmd = scmd;

drivers/tty/serial/8250/8250_bcm7271.c

···
 	}
 
 	/* setup HR timer */
-	hrtimer_init(&priv->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	priv->hrt.function = brcmuart_hrtimer_func;
+	hrtimer_setup(&priv->hrt, brcmuart_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	up.port.shutdown = brcmuart_shutdown;
 	up.port.startup = brcmuart_startup;

drivers/tty/serial/8250/8250_port.c

···
 	if (!p->em485)
 		return -ENOMEM;
 
-	hrtimer_init(&p->em485->stop_tx_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	hrtimer_init(&p->em485->start_tx_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL);
-	p->em485->stop_tx_timer.function = &serial8250_em485_handle_stop_tx;
-	p->em485->start_tx_timer.function = &serial8250_em485_handle_start_tx;
+	hrtimer_setup(&p->em485->stop_tx_timer, &serial8250_em485_handle_stop_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
+	hrtimer_setup(&p->em485->start_tx_timer, &serial8250_em485_handle_start_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	p->em485->port = p;
 	p->em485->active_timer = NULL;
 	p->em485->tx_stopped = true;

drivers/tty/serial/amba-pl011.c

···
 			return -EINVAL;
 		}
 	}
-
-	hrtimer_init(&uap->trigger_start_tx, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	hrtimer_init(&uap->trigger_stop_tx, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	uap->trigger_start_tx.function = pl011_trigger_start_tx;
-	uap->trigger_stop_tx.function = pl011_trigger_stop_tx;
+	hrtimer_setup(&uap->trigger_start_tx, pl011_trigger_start_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
+	hrtimer_setup(&uap->trigger_stop_tx, pl011_trigger_stop_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	ret = pl011_setup_port(&dev->dev, uap, &dev->res, portnr);
 	if (ret)

drivers/tty/serial/imx.c

···
 		imx_uart_writel(sport, ucr3, UCR3);
 	}
 
-	hrtimer_init(&sport->trigger_start_tx, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	hrtimer_init(&sport->trigger_stop_tx, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	sport->trigger_start_tx.function = imx_trigger_start_tx;
-	sport->trigger_stop_tx.function = imx_trigger_stop_tx;
+	hrtimer_setup(&sport->trigger_start_tx, imx_trigger_start_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
+	hrtimer_setup(&sport->trigger_stop_tx, imx_trigger_stop_tx, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	/*
 	 * Allocate the IRQ(s) i.MX1 has three interrupts whereas later

drivers/tty/serial/sh-sci.c

···
 			dma += s->buf_len_rx;
 		}
 
-		hrtimer_init(&s->rx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		s->rx_timer.function = sci_dma_rx_timer_fn;
+		hrtimer_setup(&s->rx_timer, sci_dma_rx_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 		s->chan_rx_saved = s->chan_rx = chan;
 

drivers/tty/serial/xilinx_uartps.c

···
 
 	if (cdns_uart->port->rs485.flags & SER_RS485_ENABLED &&
 	    (kfifo_is_empty(&tport->xmit_fifo) || uart_tx_stopped(port))) {
-		cdns_uart->tx_timer.function = &cdns_rs485_rx_callback;
+		hrtimer_update_function(&cdns_uart->tx_timer, cdns_rs485_rx_callback);
 		hrtimer_start(&cdns_uart->tx_timer,
 			      ns_to_ktime(cdns_calc_after_tx_delay(cdns_uart)), HRTIMER_MODE_REL);
 	}
···
 
 	if (cdns_uart->port->rs485.flags & SER_RS485_ENABLED) {
 		if (!cdns_uart->rs485_tx_started) {
-			cdns_uart->tx_timer.function = &cdns_rs485_tx_callback;
+			hrtimer_update_function(&cdns_uart->tx_timer, cdns_rs485_tx_callback);
 			cdns_rs485_tx_setup(cdns_uart);
 			return hrtimer_start(&cdns_uart->tx_timer,
 					     ms_to_ktime(port->rs485.delay_rts_before_send),
···
 		writel(val, port->membase + CDNS_UART_MODEMCR);
 
 		/* Timer setup */
-		hrtimer_init(&cdns_uart->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-		cdns_uart->tx_timer.function = &cdns_rs485_tx_callback;
+		hrtimer_setup(&cdns_uart->tx_timer, &cdns_rs485_tx_callback, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 
 		/* Disable transmitter and make Rx setup*/
 		cdns_uart_stop_tx(port);

drivers/usb/chipidea/otg_fsm.c

···
 /* Initialize timers */
 static int ci_otg_init_timers(struct ci_hdrc *ci)
 {
-	hrtimer_init(&ci->otg_fsm_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	ci->otg_fsm_hrtimer.function = ci_otg_hrtimer_func;
+	hrtimer_setup(&ci->otg_fsm_hrtimer, ci_otg_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 
 	return 0;
 }

drivers/usb/dwc2/hcd_queue.c

···
 	/* Initialize QH */
 	qh->hsotg = hsotg;
 	timer_setup(&qh->unreserve_timer, dwc2_unreserve_timer_fn, 0);
-	hrtimer_init(&qh->wait_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	qh->wait_timer.function = &dwc2_wait_timer_fn;
+	hrtimer_setup(&qh->wait_timer, &dwc2_wait_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	qh->ep_type = ep_type;
 	qh->ep_is_in = ep_is_in;
 

drivers/usb/fotg210/fotg210-hcd.c

···
 	 */
 	fotg210->need_io_watchdog = 1;
 
-	hrtimer_init(&fotg210->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	fotg210->hrtimer.function = fotg210_hrtimer_func;
+	hrtimer_setup(&fotg210->hrtimer, fotg210_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 	fotg210->next_hrtimer_event = FOTG210_HRTIMER_NO_EVENT;
 
 	hcc_params = fotg210_readl(fotg210, &fotg210->caps->hcc_params);

drivers/usb/gadget/function/f_ncm.c

···
 	ncm->port.open = ncm_open;
 	ncm->port.close = ncm_close;
 
-	hrtimer_init(&ncm->task_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
-	ncm->task_timer.function = ncm_tx_timeout;
+	hrtimer_setup(&ncm->task_timer, ncm_tx_timeout, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
 
 	DBG(cdev, "CDC Network: IN/%s OUT/%s NOTIFY/%s\n",
 			ncm->port.in_ep->name, ncm->port.out_ep->name,

drivers/usb/gadget/udc/dummy_hcd.c

···
 
 static int dummy_start_ss(struct dummy_hcd *dum_hcd)
 {
-	hrtimer_init(&dum_hcd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
-	dum_hcd->timer.function = dummy_timer;
+	hrtimer_setup(&dum_hcd->timer, dummy_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
 	dum_hcd->rh_state = DUMMY_RH_RUNNING;
 	dum_hcd->stream_en_ep = 0;
 	INIT_LIST_HEAD(&dum_hcd->urbp_list);
···
 		return dummy_start_ss(dum_hcd);
 
 	spin_lock_init(&dum_hcd->dum->lock);
-	hrtimer_init(&dum_hcd->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
-	dum_hcd->timer.function = dummy_timer;
+	hrtimer_setup(&dum_hcd->timer, dummy_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
 	dum_hcd->rh_state = DUMMY_RH_RUNNING;
 
 	INIT_LIST_HEAD(&dum_hcd->urbp_list);

drivers/usb/host/ehci-hcd.c

···
 	 */
 	ehci->need_io_watchdog = 1;
 
-	hrtimer_init(&ehci->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
-	ehci->hrtimer.function = ehci_hrtimer_func;
+	hrtimer_setup(&ehci->hrtimer, ehci_hrtimer_func, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
 	ehci->next_hrtimer_event = EHCI_HRTIMER_NO_EVENT;
 
 	hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params);

drivers/usb/musb/musb_cppi41.c

···
 	if (!controller)
 		goto kzalloc_fail;
 
-	hrtimer_init(&controller->early_tx, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	controller->early_tx.function = cppi41_recheck_tx_req;
+	hrtimer_setup(&controller->early_tx, cppi41_recheck_tx_req, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	INIT_LIST_HEAD(&controller->early_tx_list);
 
 	controller->controller.channel_alloc = cppi41_dma_channel_allocate;

drivers/usb/typec/tcpm/tcpm.c

···
 	kthread_init_work(&port->event_work, tcpm_pd_event_handler);
 	kthread_init_work(&port->enable_frs, tcpm_enable_frs_work);
 	kthread_init_work(&port->send_discover_work, tcpm_send_discover_work);
-	hrtimer_init(&port->state_machine_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	port->state_machine_timer.function = state_machine_timer_handler;
-	hrtimer_init(&port->vdm_state_machine_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	port->vdm_state_machine_timer.function = vdm_state_machine_timer_handler;
-	hrtimer_init(&port->enable_frs_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	port->enable_frs_timer.function = enable_frs_timer_handler;
-	hrtimer_init(&port->send_discover_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	port->send_discover_timer.function = send_discover_timer_handler;
+	hrtimer_setup(&port->state_machine_timer, state_machine_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
+	hrtimer_setup(&port->vdm_state_machine_timer, vdm_state_machine_timer_handler,
+		      CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	hrtimer_setup(&port->enable_frs_timer, enable_frs_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
+	hrtimer_setup(&port->send_discover_timer, send_discover_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	spin_lock_init(&port->pd_event_lock);
 

drivers/virtio/virtio_mem.c

···
 	mutex_init(&vm->hotplug_mutex);
 	INIT_LIST_HEAD(&vm->next);
 	spin_lock_init(&vm->removal_lock);
-	hrtimer_init(&vm->retry_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	vm->retry_timer.function = virtio_mem_timer_expired;
+	hrtimer_setup(&vm->retry_timer, virtio_mem_timer_expired, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	vm->retry_timer_ms = VIRTIO_MEM_RETRY_TIMER_MIN_MS;
 	vm->in_kdump = is_kdump_kernel();
 

drivers/watchdog/softdog.c

···
 	watchdog_set_nowayout(&softdog_dev, nowayout);
 	watchdog_stop_on_reboot(&softdog_dev);
 
-	hrtimer_init(&softdog_ticktock, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	softdog_ticktock.function = softdog_fire;
+	hrtimer_setup(&softdog_ticktock, softdog_fire, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	if (IS_ENABLED(CONFIG_SOFT_WATCHDOG_PRETIMEOUT)) {
 		softdog_info.options |= WDIOF_PRETIMEOUT;
-		hrtimer_init(&softdog_preticktock, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL);
-		softdog_preticktock.function = softdog_pretimeout;
+		hrtimer_setup(&softdog_preticktock, softdog_pretimeout, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL);
 	}
 
 	if (soft_active_on_boot)

drivers/watchdog/watchdog_dev.c

···
 	}
 
 	kthread_init_work(&wd_data->work, watchdog_ping_work);
-	hrtimer_init(&wd_data->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	wd_data->timer.function = watchdog_timer_expired;
+	hrtimer_setup(&wd_data->timer, watchdog_timer_expired, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_HARD);
 	watchdog_hrtimer_pretimeout_init(wdd);
 
 	if (wdd->id == 0) {

drivers/watchdog/watchdog_hrtimer_pretimeout.c

···
 {
 	struct watchdog_core_data *wd_data = wdd->wd_data;
 
-	hrtimer_init(&wd_data->pretimeout_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	wd_data->pretimeout_timer.function = watchdog_hrtimer_pretimeout;
+	hrtimer_setup(&wd_data->pretimeout_timer, watchdog_hrtimer_pretimeout, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 }
 
 void watchdog_hrtimer_pretimeout_start(struct watchdog_device *wdd)

fs/timerfd.c

···
 			   ALARM_REALTIME : ALARM_BOOTTIME,
 			   timerfd_alarmproc);
 	} else {
-		hrtimer_init(&ctx->t.tmr, clockid, htmode);
+		hrtimer_setup(&ctx->t.tmr, timerfd_tmrproc, clockid, htmode);
 		hrtimer_set_expires(&ctx->t.tmr, texp);
-		ctx->t.tmr.function = timerfd_tmrproc;
 	}
 
 	if (texp != 0) {
···
 			   ALARM_REALTIME : ALARM_BOOTTIME,
 			   timerfd_alarmproc);
 	else
-		hrtimer_init(&ctx->t.tmr, clockid, HRTIMER_MODE_ABS);
+		hrtimer_setup(&ctx->t.tmr, timerfd_tmrproc, clockid, HRTIMER_MODE_ABS);
 
 	ctx->moffs = ktime_mono_to_real(0);
 

fs/ubifs/io.c

···
 	wbuf->c = c;
 	wbuf->next_ino = 0;
 
-	hrtimer_init(&wbuf->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	wbuf->timer.function = wbuf_timer_callback_nolock;
+	hrtimer_setup(&wbuf->timer, wbuf_timer_callback_nolock, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	return 0;
 }
 

include/linux/hrtimer.h

···
 }
 #endif
 
+static inline enum hrtimer_restart hrtimer_dummy_timeout(struct hrtimer *unused)
+{
+	return HRTIMER_NORESTART;
+}
+
 /* Exported timer functions: */
 
 /* Initialize timers: */

io_uring/io_uring.c

···
 			goto out_wake;
 	}
 
-	iowq->t.function = io_cqring_timer_wakeup;
+	hrtimer_update_function(&iowq->t, io_cqring_timer_wakeup);
 	hrtimer_set_expires(timer, iowq->timeout);
 	return HRTIMER_RESTART;
 out_wake:

io_uring/timeout.c

···
 	io = req->async_data;
 	if (hrtimer_try_to_cancel(&io->timer) == -1)
 		return -EALREADY;
-	hrtimer_init(&io->timer, io_timeout_get_clock(io), mode);
-	io->timer.function = io_link_timeout_fn;
+	hrtimer_setup(&io->timer, io_link_timeout_fn, io_timeout_get_clock(io), mode);
 	hrtimer_start(&io->timer, timespec64_to_ktime(*ts), mode);
 	return 0;
 }
···
 	data->ts = *ts;
 
 	list_add_tail(&timeout->list, &ctx->timeout_list);
-	hrtimer_init(&data->timer, io_timeout_get_clock(data), mode);
-	data->timer.function = io_timeout_fn;
+	hrtimer_setup(&data->timer, io_timeout_fn, io_timeout_get_clock(data), mode);
 	hrtimer_start(&data->timer, timespec64_to_ktime(data->ts), mode);
 	return 0;
 }
···
 		return -EINVAL;
 
 	data->mode = io_translate_timeout_mode(flags);
-	hrtimer_init(&data->timer, io_timeout_get_clock(data), data->mode);
 
 	if (is_timeout_link) {
 		struct io_submit_link *link = &req->ctx->submit_state.link;
···
 			return -EINVAL;
 		timeout->head = link->last;
 		link->last->flags |= REQ_F_ARM_LTIMEOUT;
+		hrtimer_setup(&data->timer, io_link_timeout_fn, io_timeout_get_clock(data),
+			      data->mode);
+	} else {
+		hrtimer_setup(&data->timer, io_timeout_fn, io_timeout_get_clock(data), data->mode);
 	}
 	return 0;
 }
···
 	}
 add:
 	list_add(&timeout->list, entry);
-	data->timer.function = io_timeout_fn;
 	hrtimer_start(&data->timer, timespec64_to_ktime(data->ts), data->mode);
 	raw_spin_unlock_irq(&ctx->timeout_lock);
 	return IOU_ISSUE_SKIP_COMPLETE;
···
 	if (timeout->head) {
 		struct io_timeout_data *data = req->async_data;
 
-		data->timer.function = io_link_timeout_fn;
 		hrtimer_start(&data->timer, timespec64_to_ktime(data->ts),
 				data->mode);
 		list_add_tail(&timeout->list, &ctx->ltimeout_list);

kernel/bpf/helpers.c

···
 
 		atomic_set(&t->cancelling, 0);
 		INIT_WORK(&t->cb.delete_work, bpf_timer_delete_work);
-		hrtimer_init(&t->timer, clockid, HRTIMER_MODE_REL_SOFT);
-		t->timer.function = bpf_timer_cb;
+		hrtimer_setup(&t->timer, bpf_timer_cb, clockid, HRTIMER_MODE_REL_SOFT);
 		cb->value = (void *)async - map->record->timer_off;
 		break;
 	case BPF_ASYNC_TYPE_WQ:

kernel/events/core.c

···
 	cpc->hrtimer_interval = ns_to_ktime(NSEC_PER_MSEC * interval);
 
 	raw_spin_lock_init(&cpc->hrtimer_lock);
-	hrtimer_init(timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
-	timer->function = perf_mux_hrtimer_handler;
+	hrtimer_setup(timer, perf_mux_hrtimer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_PINNED_HARD);
 }
 
 static int perf_mux_hrtimer_restart(struct perf_cpu_pmu_context *cpc)
···
 	if (!is_sampling_event(event))
 		return;
 
-	hrtimer_init(&hwc->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	hwc->hrtimer.function = perf_swevent_hrtimer;
+	hrtimer_setup(&hwc->hrtimer, perf_swevent_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
 
 	/*
 	 * Since hrtimers have a fixed rate, we can do a static freq->period

kernel/fork.c

···
 #ifdef CONFIG_POSIX_TIMERS
 	INIT_HLIST_HEAD(&sig->posix_timers);
 	INIT_HLIST_HEAD(&sig->ignored_posix_timers);
-	hrtimer_init(&sig->real_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	sig->real_timer.function = it_real_fn;
+	hrtimer_setup(&sig->real_timer, it_real_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 #endif
 
 	task_lock(current->group_leader);

kernel/sched/core.c

···
 #ifdef CONFIG_SMP
 	INIT_CSD(&rq->hrtick_csd, __hrtick_start, rq);
 #endif
-	hrtimer_init(&rq->hrtick_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	rq->hrtick_timer.function = hrtick;
+	hrtimer_setup(&rq->hrtick_timer, hrtick, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
 }
 #else	/* CONFIG_SCHED_HRTICK */
 static inline void hrtick_clear(struct rq *rq)

kernel/sched/deadline.c

···
 {
 	struct hrtimer *timer = &dl_se->dl_timer;
 
-	hrtimer_init(timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	timer->function = dl_task_timer;
+	hrtimer_setup(timer, dl_task_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
 }
 
 /*
···
 {
 	struct hrtimer *timer = &dl_se->inactive_timer;
 
-	hrtimer_init(timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	timer->function = inactive_task_timer;
+	hrtimer_setup(timer, inactive_task_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
 }
 
 #define __node_2_dle(node) \

kernel/sched/fair.c

···
 	cfs_b->hierarchical_quota = parent ? parent->hierarchical_quota : RUNTIME_INF;
 
 	INIT_LIST_HEAD(&cfs_b->throttled_cfs_rq);
-	hrtimer_init(&cfs_b->period_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED);
-	cfs_b->period_timer.function = sched_cfs_period_timer;
+	hrtimer_setup(&cfs_b->period_timer, sched_cfs_period_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_PINNED);
 
 	/* Add a random offset so that timers interleave */
 	hrtimer_set_expires(&cfs_b->period_timer,
 			    get_random_u32_below(cfs_b->period));
-	hrtimer_init(&cfs_b->slack_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	cfs_b->slack_timer.function = sched_cfs_slack_timer;
+	hrtimer_setup(&cfs_b->slack_timer, sched_cfs_slack_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	cfs_b->slack_started = false;
 }
 

kernel/sched/rt.c

···
 
 	raw_spin_lock_init(&rt_b->rt_runtime_lock);
 
-	hrtimer_init(&rt_b->rt_period_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL_HARD);
-	rt_b->rt_period_timer.function = sched_rt_period_timer;
+	hrtimer_setup(&rt_b->rt_period_timer, sched_rt_period_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_HARD);
 }
 
 static inline void do_start_rt_bandwidth(struct rt_bandwidth *rt_b)

kernel/time/hrtimer.c

···
 	}
 }
 
-static enum hrtimer_restart hrtimer_dummy_timeout(struct hrtimer *unused)
-{
-	return HRTIMER_NORESTART;
-}
-
 static void __hrtimer_init(struct hrtimer *timer, clockid_t clock_id,
 			   enum hrtimer_mode mode)
 {

kernel/time/ntp.c

···
 
 static void __init ntp_init_cmos_sync(void)
 {
-	hrtimer_init(&sync_hrtimer, CLOCK_REALTIME, HRTIMER_MODE_ABS);
-	sync_hrtimer.function = sync_timer_callback;
+	hrtimer_setup(&sync_hrtimer, sync_timer_callback, CLOCK_REALTIME, HRTIMER_MODE_ABS);
 }
 #else /* CONFIG_GENERIC_CMOS_UPDATE) || defined(CONFIG_RTC_SYSTOHC) */
 static inline void __init ntp_init_cmos_sync(void) { }

kernel/time/posix-timers.c

···
 
 static int common_timer_create(struct k_itimer *new_timer)
 {
-	hrtimer_init(&new_timer->it.real.timer, new_timer->it_clock, 0);
+	hrtimer_setup(&new_timer->it.real.timer, posix_timer_fn, new_timer->it_clock, 0);
 	return 0;
 }
 
···
 	/*
 	 * Posix magic: Relative CLOCK_REALTIME timers are not affected by
 	 * clock modifications, so they become CLOCK_MONOTONIC based under the
-	 * hood. See hrtimer_init(). Update timr->kclock, so the generic
+	 * hood. See hrtimer_setup(). Update timr->kclock, so the generic
 	 * functions which use timr->kclock->clock_get_*() work.
 	 *
 	 * Note: it_clock stays unmodified, because the next timer_set() might
···
 	if (timr->it_clock == CLOCK_REALTIME)
 		timr->kclock = absolute ? &clock_realtime : &clock_monotonic;
 
-	hrtimer_init(&timr->it.real.timer, timr->it_clock, mode);
-	timr->it.real.timer.function = posix_timer_fn;
+	hrtimer_setup(&timr->it.real.timer, posix_timer_fn, timr->it_clock, mode);
 
 	if (!absolute)
 		expires = ktime_add_safe(expires, timer->base->get_time());

kernel/time/sched_clock.c

···
 	 * Start the timer to keep sched_clock() properly updated and
 	 * sets the initial epoch.
 	 */
-	hrtimer_init(&sched_clock_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	sched_clock_timer.function = sched_clock_poll;
+	hrtimer_setup(&sched_clock_timer, sched_clock_poll, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
 	hrtimer_start(&sched_clock_timer, cd.wrap_kt, HRTIMER_MODE_REL_HARD);
 }
 

kernel/time/tick-broadcast-hrtimer.c

···
 
 void tick_setup_hrtimer_broadcast(void)
 {
-	hrtimer_init(&bctimer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
-	bctimer.function = bc_handler;
+	hrtimer_setup(&bctimer, bc_handler, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
 	clockevents_register_device(&ce_broadcast_hrtimer);
 }

kernel/time/tick-sched.c

···
 	struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
 
 	/* Emulate tick processing via per-CPU hrtimers: */
-	hrtimer_init(&ts->sched_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
+	hrtimer_setup(&ts->sched_timer, tick_nohz_handler, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_HARD);
 
-	if (IS_ENABLED(CONFIG_HIGH_RES_TIMERS) && hrtimer) {
+	if (IS_ENABLED(CONFIG_HIGH_RES_TIMERS) && hrtimer)
 		tick_sched_flag_set(ts, TS_FLAG_HIGHRES);
-		ts->sched_timer.function = tick_nohz_handler;
-	}
 
 	/* Get the next period (per-CPU) */
 	hrtimer_set_expires(&ts->sched_timer, tick_init_jiffy_update());

kernel/trace/trace_osnoise.c

···
 	tlat->count = 0;
 	tlat->tracing_thread = false;
 
-	hrtimer_init(&tlat->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
-	tlat->timer.function = timerlat_irq;
+	hrtimer_setup(&tlat->timer, timerlat_irq, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
 	tlat->kthread = current;
 	osn_var->pid = current->pid;
 	/*
···
 	tlat = this_cpu_tmr_var();
 	tlat->count = 0;
 
-	hrtimer_init(&tlat->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
-	tlat->timer.function = timerlat_irq;
+	hrtimer_setup(&tlat->timer, timerlat_irq, CLOCK_MONOTONIC, HRTIMER_MODE_ABS_PINNED_HARD);
 
 	migrate_enable();
 	return 0;

kernel/watchdog.c

···
 	 * Start the timer first to prevent the hardlockup watchdog triggering
 	 * before the timer has a chance to fire.
 	 */
-	hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
-	hrtimer->function = watchdog_timer_fn;
+	hrtimer_setup(hrtimer, watchdog_timer_fn, CLOCK_MONOTONIC, HRTIMER_MODE_REL_HARD);
 	hrtimer_start(hrtimer, ns_to_ktime(sample_period),
 		      HRTIMER_MODE_REL_PINNED_HARD);
 

lib/test_objpool.c

···
 		return -ENOENT;
 
 	item->hrtcycle = ktime_set(0, hrtimer * 1000000UL);
-	hrtimer_init(hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	hrt->function = ot_hrtimer_handler;
+	hrtimer_setup(hrt, ot_hrtimer_handler, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	return 0;
 }
 

mm/slab_common.c

···
 				&krcp->page_cache_work,
 					msecs_to_jiffies(rcu_delay_page_cache_fill_msec));
 		} else {
-			hrtimer_init(&krcp->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-			krcp->hrtimer.function = schedule_page_work_fn;
+			hrtimer_setup(&krcp->hrtimer, schedule_page_work_fn, CLOCK_MONOTONIC,
+				      HRTIMER_MODE_REL);
 			hrtimer_start(&krcp->hrtimer, 0, HRTIMER_MODE_REL);
 		}
 	}

net/can/bcm.c

···
 		op->ifindex = ifindex;
 
 		/* initialize uninitialized (kzalloc) structure */
-		hrtimer_init(&op->timer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL_SOFT);
-		op->timer.function = bcm_tx_timeout_handler;
+		hrtimer_setup(&op->timer, bcm_tx_timeout_handler, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_SOFT);
 
 		/* currently unused in tx_ops */
-		hrtimer_init(&op->thrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL_SOFT);
+		hrtimer_setup(&op->thrtimer, hrtimer_dummy_timeout, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_SOFT);
 
 		/* add this bcm_op to the list of the tx_ops */
 		list_add(&op->list, &bo->tx_ops);
···
 		op->rx_ifindex = ifindex;
 
 		/* initialize uninitialized (kzalloc) structure */
-		hrtimer_init(&op->timer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL_SOFT);
-		op->timer.function = bcm_rx_timeout_handler;
-
-		hrtimer_init(&op->thrtimer, CLOCK_MONOTONIC,
-			     HRTIMER_MODE_REL_SOFT);
-		op->thrtimer.function = bcm_rx_thr_handler;
+		hrtimer_setup(&op->timer, bcm_rx_timeout_handler, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_SOFT);
+		hrtimer_setup(&op->thrtimer, bcm_rx_thr_handler, CLOCK_MONOTONIC,
+			      HRTIMER_MODE_REL_SOFT);
 
 		/* add this bcm_op to the list of the rx_ops */
 		list_add(&op->list, &bo->rx_ops);

net/can/isotp.c

···
 	so->rx.buflen = ARRAY_SIZE(so->rx.sbuf);
 	so->tx.buflen = ARRAY_SIZE(so->tx.sbuf);
 
-	hrtimer_init(&so->rxtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
-	so->rxtimer.function = isotp_rx_timer_handler;
-	hrtimer_init(&so->txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
-	so->txtimer.function = isotp_tx_timer_handler;
-	hrtimer_init(&so->txfrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
-	so->txfrtimer.function = isotp_txfr_timer_handler;
+	hrtimer_setup(&so->rxtimer, isotp_rx_timer_handler, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
+	hrtimer_setup(&so->txtimer, isotp_tx_timer_handler, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
+	hrtimer_setup(&so->txfrtimer, isotp_txfr_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_SOFT);
 
 	init_waitqueue_head(&so->wait);
 	spin_lock_init(&so->rx_lock);

net/can/j1939/bus.c

···
 	ecu->addr = J1939_IDLE_ADDR;
 	ecu->name = name;
 
-	hrtimer_init(&ecu->ac_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
-	ecu->ac_timer.function = j1939_ecu_timer_handler;
+	hrtimer_setup(&ecu->ac_timer, j1939_ecu_timer_handler, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_SOFT);
 	INIT_LIST_HEAD(&ecu->list);
 
 	j1939_priv_get(priv);

net/can/j1939/transport.c

···
 	skcb = j1939_skb_to_cb(skb);
 	memcpy(&session->skcb, skcb, sizeof(session->skcb));
 
-	hrtimer_init(&session->txtimer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL_SOFT);
-	session->txtimer.function = j1939_tp_txtimer;
-	hrtimer_init(&session->rxtimer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL_SOFT);
-	session->rxtimer.function = j1939_tp_rxtimer;
+	hrtimer_setup(&session->txtimer, j1939_tp_txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
+	hrtimer_setup(&session->rxtimer, j1939_tp_rxtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT);
 
 	netdev_dbg(priv->ndev, "%s: 0x%p: sa: %02x, da: %02x\n",
 		   __func__, session, skcb->addr.sa, skcb->addr.da);

net/core/dev.c

···
 
 	INIT_LIST_HEAD(&napi->poll_list);
 	INIT_HLIST_NODE(&napi->napi_hash_node);
-	hrtimer_init(&napi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
-	napi->timer.function = napi_watchdog;
+	hrtimer_setup(&napi->timer, napi_watchdog, CLOCK_MONOTONIC, HRTIMER_MODE_REL_PINNED);
 	init_gro_hash(napi);
 	napi->skb = NULL;
 	INIT_LIST_HEAD(&napi->rx_list);

net/ipv4/tcp_timer.c

···
 {
 	inet_csk_init_xmit_timers(sk, &tcp_write_timer, &tcp_delack_timer,
 				  &tcp_keepalive_timer);
-	hrtimer_init(&tcp_sk(sk)->pacing_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_ABS_PINNED_SOFT);
-	tcp_sk(sk)->pacing_timer.function = tcp_pace_kick;
+	hrtimer_setup(&tcp_sk(sk)->pacing_timer, tcp_pace_kick, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_ABS_PINNED_SOFT);
 
-	hrtimer_init(&tcp_sk(sk)->compressed_ack_timer, CLOCK_MONOTONIC,
-		     HRTIMER_MODE_REL_PINNED_SOFT);
-	tcp_sk(sk)->compressed_ack_timer.function = tcp_compressed_ack_kick;
+	hrtimer_setup(&tcp_sk(sk)->compressed_ack_timer, tcp_compressed_ack_kick, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL_PINNED_SOFT);
 }

net/mac802154/main.c

···
 		goto out_wq;
 	}
 
-	hrtimer_init(&local->ifs_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	local->ifs_timer.function = ieee802154_xmit_ifs_timer;
+	hrtimer_setup(&local->ifs_timer, ieee802154_xmit_ifs_timer, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 
 	wpan_phy_set_dev(local->phy, local->hw.parent);
 

net/sched/act_gate.c

···
 	gact->param.tcfg_basetime = basetime;
 	gact->param.tcfg_clockid = clockid;
 	gact->tk_offset = tko;
-	hrtimer_init(&gact->hitimer, clockid, HRTIMER_MODE_ABS_SOFT);
-	gact->hitimer.function = gate_timer_func;
+	hrtimer_setup(&gact->hitimer, gate_timer_func, clockid, HRTIMER_MODE_ABS_SOFT);
 }
 
 static int tcf_gate_init(struct net *net, struct nlattr *nla,

net/sched/sch_api.c

···
 void qdisc_watchdog_init_clockid(struct qdisc_watchdog *wd, struct Qdisc *qdisc,
 				 clockid_t clockid)
 {
-	hrtimer_init(&wd->timer, clockid, HRTIMER_MODE_ABS_PINNED);
-	wd->timer.function = qdisc_watchdog;
+	hrtimer_setup(&wd->timer, qdisc_watchdog, clockid, HRTIMER_MODE_ABS_PINNED);
 	wd->qdisc = qdisc;
 }
 EXPORT_SYMBOL(qdisc_watchdog_init_clockid);

net/sched/sch_taprio.c

···
 	if (!TXTIME_ASSIST_IS_ENABLED(q->flags) &&
 	    !FULL_OFFLOAD_IS_ENABLED(q->flags) &&
 	    !hrtimer_active(&q->advance_timer)) {
-		hrtimer_init(&q->advance_timer, q->clockid, HRTIMER_MODE_ABS);
-		q->advance_timer.function = advance_sched;
+		hrtimer_setup(&q->advance_timer, advance_sched, q->clockid, HRTIMER_MODE_ABS);
 	}
 
 	err = taprio_get_start_time(sch, new_admin, &start);
···
 
 	spin_lock_init(&q->current_entry_lock);
 
-	hrtimer_init(&q->advance_timer, CLOCK_TAI, HRTIMER_MODE_ABS);
-	q->advance_timer.function = advance_sched;
+	hrtimer_setup(&q->advance_timer, advance_sched, CLOCK_TAI, HRTIMER_MODE_ABS);
 
 	q->root = sch;
 

net/xfrm/xfrm_iptfs.c

···
 			       struct xfrm_iptfs_data *xtfs)
 {
 	__skb_queue_head_init(&xtfs->queue);
-	hrtimer_init(&xtfs->iptfs_timer, CLOCK_MONOTONIC, IPTFS_HRTIMER_MODE);
-	xtfs->iptfs_timer.function = iptfs_delay_timer;
+	hrtimer_setup(&xtfs->iptfs_timer, iptfs_delay_timer, CLOCK_MONOTONIC, IPTFS_HRTIMER_MODE);
 
 	spin_lock_init(&xtfs->drop_lock);
-	hrtimer_init(&xtfs->drop_timer, CLOCK_MONOTONIC, IPTFS_HRTIMER_MODE);
-	xtfs->drop_timer.function = iptfs_drop_timer;
+	hrtimer_setup(&xtfs->drop_timer, iptfs_drop_timer, CLOCK_MONOTONIC, IPTFS_HRTIMER_MODE);
 
 	/* Modify type (esp) adjustment values */
 

net/xfrm/xfrm_state.c

···
 		INIT_HLIST_NODE(&x->bysrc);
 		INIT_HLIST_NODE(&x->byspi);
 		INIT_HLIST_NODE(&x->byseq);
-		hrtimer_init(&x->mtimer, CLOCK_BOOTTIME, HRTIMER_MODE_ABS_SOFT);
-		x->mtimer.function = xfrm_timer_handler;
+		hrtimer_setup(&x->mtimer, xfrm_timer_handler, CLOCK_BOOTTIME,
+			      HRTIMER_MODE_ABS_SOFT);
 		timer_setup(&x->rtimer, xfrm_replay_timer_handler, 0);
 		x->curlft.add_time = ktime_get_real_seconds();
 		x->lft.soft_byte_limit = XFRM_INF;

sound/soc/fsl/imx-pcm-fiq.c

···
 
 	atomic_set(&iprtd->playing, 0);
 	atomic_set(&iprtd->capturing, 0);
-	hrtimer_init(&iprtd->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	iprtd->hrt.function = snd_hrtimer_callback;
+	hrtimer_setup(&iprtd->hrt, snd_hrtimer_callback, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 
 	ret = snd_pcm_hw_constraint_integer(substream->runtime,
 			SNDRV_PCM_HW_PARAM_PERIODS);