Merge tag 'v5.15-rc6' into android-mainline

Linux 5.15-rc6

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7d0ce5237a312f6345ddb6dd5faff0c428d8030f

Documentation/userspace-api/vduse.rst

@@ -18,7 +18,7 @@ types can be added after the security issue of corresponding device driver
 is clarified or fixed in the future.
 
 Create/Destroy VDUSE devices
-------------------------
+----------------------------
 
 VDUSE devices are created as follows:
 

MAINTAINERS

@@ -7343,10 +7343,11 @@ F:	include/uapi/linux/fpga-dfl.h
 
 FPGA MANAGER FRAMEWORK
 M:	Moritz Fischer <mdf@kernel.org>
+M:	Wu Hao <hao.wu@intel.com>
+M:	Xu Yilun <yilun.xu@intel.com>
 R:	Tom Rix <trix@redhat.com>
 L:	linux-fpga@vger.kernel.org
 S:	Maintained
-W:	http://www.rocketboards.org
 Q:	http://patchwork.kernel.org/project/linux-fpga/list/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mdf/linux-fpga.git
 F:	Documentation/devicetree/bindings/fpga/

Makefile

@@ -2,7 +2,7 @@
 VERSION = 5
 PATCHLEVEL = 15
 SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc6
 NAME = Opossums on Parade
 
 # *DOCUMENTATION*

arch/arm/configs/multi_v7_defconfig

@@ -197,7 +197,6 @@ CONFIG_PCI_EPF_TEST=m
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_OMAP_OCP2SCP=y
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y

arch/arm/configs/oxnas_v6_defconfig

@@ -46,7 +46,6 @@ CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_DMA_CMA=y
 CONFIG_CMA_SIZE_MBYTES=64
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y

arch/arm/configs/shmobile_defconfig

@@ -40,7 +40,6 @@ CONFIG_PCI_RCAR_GEN2=y
 CONFIG_PCIE_RCAR_HOST=y
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y

arch/arm/mach-omap2/Kconfig

@@ -112,7 +112,6 @@ config ARCH_OMAP2PLUS
 	select PM_GENERIC_DOMAINS
 	select PM_GENERIC_DOMAINS_OF
 	select RESET_CONTROLLER
-	select SIMPLE_PM_BUS
 	select SOC_BUS
 	select TI_SYSC
 	select OMAP_IRQCHIP

arch/arm64/configs/defconfig

@@ -245,7 +245,6 @@ CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_FW_LOADER_USER_HELPER=y
 CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
 CONFIG_HISILICON_LPC=y
-CONFIG_SIMPLE_PM_BUS=y
 CONFIG_FSL_MC_BUS=y
 CONFIG_TEGRA_ACONNECT=m
 CONFIG_GNSS=m

arch/powerpc/kvm/book3s_hv_rmhandlers.S

@@ -255,13 +255,16 @@ kvm_novcpu_exit:
  * r3 contains the SRR1 wakeup value, SRR1 is trashed.
  */
 _GLOBAL(idle_kvm_start_guest)
-	ld	r4,PACAEMERGSP(r13)
 	mfcr	r5
 	mflr	r0
-	std	r1,0(r4)
+	std	r5, 8(r1)	// Save CR in caller's frame
-	std	r5,8(r4)
+	std	r0, 16(r1)	// Save LR in caller's frame
-	std	r0,16(r4)
+	// Create frame on emergency stack
-	subi	r1,r4,STACK_FRAME_OVERHEAD
+	ld	r4, PACAEMERGSP(r13)
+	stdu	r1, -SWITCH_FRAME_SIZE(r4)
+	// Switch to new frame on emergency stack
+	mr	r1, r4
+	std	r3, 32(r1)	// Save SRR1 wakeup value
 	SAVE_NVGPRS(r1)
 
 	/*
@@ -313,6 +316,10 @@ kvm_unsplit_wakeup:
 
 kvm_secondary_got_guest:
 
+	// About to go to guest, clear saved SRR1
+	li	r0, 0
+	std	r0, 32(r1)
+
 	/* Set HSTATE_DSCR(r13) to something sensible */
 	ld	r6, PACA_DSCR_DEFAULT(r13)
 	std	r6, HSTATE_DSCR(r13)
@@ -392,13 +399,12 @@ kvm_no_guest:
 	mfspr	r4, SPRN_LPCR
 	rlwimi	r4, r3, 0, LPCR_PECE0 | LPCR_PECE1
 	mtspr	SPRN_LPCR, r4
-	/* set up r3 for return */
+	// Return SRR1 wakeup value, or 0 if we went into the guest
-	mfspr	r3,SPRN_SRR1
+	ld	r3, 32(r1)
 	REST_NVGPRS(r1)
-	addi	r1, r1, STACK_FRAME_OVERHEAD
+	ld	r1, 0(r1)	// Switch back to caller stack
-	ld	r0, 16(r1)
+	ld	r0, 16(r1)	// Reload LR
-	ld	r5, 8(r1)
+	ld	r5, 8(r1)	// Reload CR
-	ld	r1, 0(r1)
 	mtlr	r0
 	mtcr	r5
 	blr

arch/powerpc/sysdev/xive/common.c

@@ -945,7 +945,8 @@ static int xive_get_irqchip_state(struct irq_data *data,
 		 * interrupt to be inactive in that case.
 		 */
 		*state = (pq != XIVE_ESB_INVALID) && !xd->stale_p &&
-			(xd->saved_p || !!(pq & XIVE_ESB_VAL_P));
+			(xd->saved_p || (!!(pq & XIVE_ESB_VAL_P) &&
+			 !irqd_irq_disabled(data)));
 		return 0;
 	default:
 		return -EINVAL;

arch/x86/Kconfig

@@ -1525,7 +1525,6 @@ config AMD_MEM_ENCRYPT
 
 config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
 	bool "Activate AMD Secure Memory Encryption (SME) by default"
-	default y
 	depends on AMD_MEM_ENCRYPT
 	help
 	  Say yes to have system memory encrypted by default if running on

arch/x86/events/msr.c

@@ -68,6 +68,7 @@ static bool test_intel(int idx, void *data)
 	case INTEL_FAM6_BROADWELL_D:
 	case INTEL_FAM6_BROADWELL_G:
 	case INTEL_FAM6_BROADWELL_X:
+	case INTEL_FAM6_SAPPHIRERAPIDS_X:
 
 	case INTEL_FAM6_ATOM_SILVERMONT:
 	case INTEL_FAM6_ATOM_SILVERMONT_D:

arch/x86/kernel/fpu/signal.c

@@ -385,7 +385,7 @@ static int __fpu_restore_sig(void __user *buf, void __user *buf_fx,
 				return -EINVAL;
 		} else {
 			/* Mask invalid bits out for historical reasons (broken hardware). */
-			fpu->state.fxsave.mxcsr &= ~mxcsr_feature_mask;
+			fpu->state.fxsave.mxcsr &= mxcsr_feature_mask;
 		}
 
 		/* Enforce XFEATURE_MASK_FPSSE when XSAVE is enabled */

block/bfq-cgroup.c

@@ -666,6 +666,12 @@ void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 		bfq_put_idle_entity(bfq_entity_service_tree(entity), entity);
 	bfqg_and_blkg_put(bfqq_group(bfqq));
 
+	if (entity->parent &&
+	    entity->parent->last_bfqq_created == bfqq)
+		entity->parent->last_bfqq_created = NULL;
+	else if (bfqd->last_bfqq_created == bfqq)
+		bfqd->last_bfqq_created = NULL;
+
 	entity->parent = bfqg->my_entity;
 	entity->sched_data = &bfqg->sched_data;
 	/* pin down bfqg and its associated blkg  */

block/blk-core.c

@@ -49,7 +49,6 @@
 #include "blk-mq.h"
 #include "blk-mq-sched.h"
 #include "blk-pm.h"
-#include "blk-rq-qos.h"
 
 struct dentry *blk_debugfs_root;
 
@@ -337,23 +336,25 @@ void blk_put_queue(struct request_queue *q)
 }
 EXPORT_SYMBOL(blk_put_queue);
 
-void blk_set_queue_dying(struct request_queue *q)
+void blk_queue_start_drain(struct request_queue *q)
 {
-	blk_queue_flag_set(QUEUE_FLAG_DYING, q);
-
 	/*
 	 * When queue DYING flag is set, we need to block new req
 	 * entering queue, so we call blk_freeze_queue_start() to
 	 * prevent I/O from crossing blk_queue_enter().
 	 */
 	blk_freeze_queue_start(q);
-
 	if (queue_is_mq(q))
 		blk_mq_wake_waiters(q);
-
 	/* Make blk_queue_enter() reexamine the DYING flag. */
 	wake_up_all(&q->mq_freeze_wq);
 }
+
+void blk_set_queue_dying(struct request_queue *q)
+{
+	blk_queue_flag_set(QUEUE_FLAG_DYING, q);
+	blk_queue_start_drain(q);
+}
 EXPORT_SYMBOL_GPL(blk_set_queue_dying);
 
 /**
@@ -385,13 +386,8 @@ void blk_cleanup_queue(struct request_queue *q)
 	 */
 	blk_freeze_queue(q);
 
-	rq_qos_exit(q);
-
 	blk_queue_flag_set(QUEUE_FLAG_DEAD, q);
 
-	/* for synchronous bio-based driver finish in-flight integrity i/o */
-	blk_flush_integrity();
-
 	blk_sync_queue(q);
 	if (queue_is_mq(q))
 		blk_mq_exit_queue(q);
@@ -416,6 +412,30 @@ void blk_cleanup_queue(struct request_queue *q)
 }
 EXPORT_SYMBOL(blk_cleanup_queue);
 
+static bool blk_try_enter_queue(struct request_queue *q, bool pm)
+{
+	rcu_read_lock();
+	if (!percpu_ref_tryget_live(&q->q_usage_counter))
+		goto fail;
+
+	/*
+	 * The code that increments the pm_only counter must ensure that the
+	 * counter is globally visible before the queue is unfrozen.
+	 */
+	if (blk_queue_pm_only(q) &&
+	    (!pm || queue_rpm_status(q) == RPM_SUSPENDED))
+		goto fail_put;
+
+	rcu_read_unlock();
+	return true;
+
+fail_put:
+	percpu_ref_put(&q->q_usage_counter);
+fail:
+	rcu_read_unlock();
+	return false;
+}
+
 /**
  * blk_queue_enter() - try to increase q->q_usage_counter
  * @q: request queue pointer
@@ -425,40 +445,18 @@ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
 {
 	const bool pm = flags & BLK_MQ_REQ_PM;
 
-	while (true) {
+	while (!blk_try_enter_queue(q, pm)) {
-		bool success = false;
-
-		rcu_read_lock();
-		if (percpu_ref_tryget_live(&q->q_usage_counter)) {
-			/*
-			 * The code that increments the pm_only counter is
-			 * responsible for ensuring that that counter is
-			 * globally visible before the queue is unfrozen.
-			 */
-			if ((pm && queue_rpm_status(q) != RPM_SUSPENDED) ||
-			    !blk_queue_pm_only(q)) {
-				success = true;
-			} else {
-				percpu_ref_put(&q->q_usage_counter);
-			}
-		}
-		rcu_read_unlock();
-
-		if (success)
-			return 0;
-
 		if (flags & BLK_MQ_REQ_NOWAIT)
 			return -EBUSY;
 
 		/*
-		 * read pair of barrier in blk_freeze_queue_start(),
+		 * read pair of barrier in blk_freeze_queue_start(), we need to
-		 * we need to order reading __PERCPU_REF_DEAD flag of
+		 * order reading __PERCPU_REF_DEAD flag of .q_usage_counter and
-		 * .q_usage_counter and reading .mq_freeze_depth or
+		 * reading .mq_freeze_depth or queue dying flag, otherwise the
-		 * queue dying flag, otherwise the following wait may
+		 * following wait may never return if the two reads are
-		 * never return if the two reads are reordered.
+		 * reordered.
 		 */
 		smp_rmb();
-
 		wait_event(q->mq_freeze_wq,
 			   (!q->mq_freeze_depth &&
 			    blk_pm_resume_queue(pm, q)) ||
@@ -466,23 +464,43 @@ int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
 		if (blk_queue_dying(q))
 			return -ENODEV;
 	}
+
+	return 0;
 }
 
 static inline int bio_queue_enter(struct bio *bio)
 {
-	struct request_queue *q = bio->bi_bdev->bd_disk->queue;
+	struct gendisk *disk = bio->bi_bdev->bd_disk;
-	bool nowait = bio->bi_opf & REQ_NOWAIT;
+	struct request_queue *q = disk->queue;
-	int ret;
 
-	ret = blk_queue_enter(q, nowait ? BLK_MQ_REQ_NOWAIT : 0);
+	while (!blk_try_enter_queue(q, false)) {
-	if (unlikely(ret)) {
+		if (bio->bi_opf & REQ_NOWAIT) {
-		if (nowait && !blk_queue_dying(q))
+			if (test_bit(GD_DEAD, &disk->state))
+				goto dead;
 			bio_wouldblock_error(bio);
-		else
+			return -EBUSY;
-			bio_io_error(bio);
 		}
 
-	return ret;
+		/*
+		 * read pair of barrier in blk_freeze_queue_start(), we need to
+		 * order reading __PERCPU_REF_DEAD flag of .q_usage_counter and
+		 * reading .mq_freeze_depth or queue dying flag, otherwise the
+		 * following wait may never return if the two reads are
+		 * reordered.
+		 */
+		smp_rmb();
+		wait_event(q->mq_freeze_wq,
+			   (!q->mq_freeze_depth &&
+			    blk_pm_resume_queue(false, q)) ||
+			   test_bit(GD_DEAD, &disk->state));
+		if (test_bit(GD_DEAD, &disk->state))
+			goto dead;
+	}
+
+	return 0;
+dead:
+	bio_io_error(bio);
+	return -ENODEV;
 }
 
 void blk_queue_exit(struct request_queue *q)
@@ -899,11 +917,18 @@ static blk_qc_t __submit_bio(struct bio *bio)
 	struct gendisk *disk = bio->bi_bdev->bd_disk;
 	blk_qc_t ret = BLK_QC_T_NONE;
 
-	if (blk_crypto_bio_prep(&bio)) {
+	if (unlikely(bio_queue_enter(bio) != 0))
-		if (!disk->fops->submit_bio)
+		return BLK_QC_T_NONE;
-			return blk_mq_submit_bio(bio);
+
+	if (!submit_bio_checks(bio) || !blk_crypto_bio_prep(&bio))
+		goto queue_exit;
+	if (disk->fops->submit_bio) {
 		ret = disk->fops->submit_bio(bio);
+		goto queue_exit;
 	}
+	return blk_mq_submit_bio(bio);
+
+queue_exit:
 	blk_queue_exit(disk->queue);
 	return ret;
 }
@@ -941,9 +966,6 @@ static blk_qc_t __submit_bio_noacct(struct bio *bio)
 		struct request_queue *q = bio->bi_bdev->bd_disk->queue;
 		struct bio_list lower, same;
 
-		if (unlikely(bio_queue_enter(bio) != 0))
-			continue;
-
 		/*
 		 * Create a fresh bio_list for all subordinate requests.
 		 */
@@ -979,23 +1001,12 @@ static blk_qc_t __submit_bio_noacct(struct bio *bio)
 static blk_qc_t __submit_bio_noacct_mq(struct bio *bio)
 {
 	struct bio_list bio_list[2] = { };
-	blk_qc_t ret = BLK_QC_T_NONE;
+	blk_qc_t ret;
 
 	current->bio_list = bio_list;
 
 	do {
-		struct gendisk *disk = bio->bi_bdev->bd_disk;
+		ret = __submit_bio(bio);
-
-		if (unlikely(bio_queue_enter(bio) != 0))
-			continue;
-
-		if (!blk_crypto_bio_prep(&bio)) {
-			blk_queue_exit(disk->queue);
-			ret = BLK_QC_T_NONE;
-			continue;
-		}
-
-		ret = blk_mq_submit_bio(bio);
 	} while ((bio = bio_list_pop(&bio_list[0])));
 
 	current->bio_list = NULL;
@@ -1013,9 +1024,6 @@ static blk_qc_t __submit_bio_noacct_mq(struct bio *bio)
  */
 blk_qc_t submit_bio_noacct(struct bio *bio)
 {
-	if (!submit_bio_checks(bio))
-		return BLK_QC_T_NONE;
-
 	/*
 	 * We only want one ->submit_bio to be active at a time, else stack
 	 * usage with stacked devices could be a problem.  Use current->bio_list

block/blk-mq.c

@@ -188,9 +188,11 @@ void blk_mq_freeze_queue(struct request_queue *q)
 }
 EXPORT_SYMBOL_GPL(blk_mq_freeze_queue);
 
-void blk_mq_unfreeze_queue(struct request_queue *q)
+void __blk_mq_unfreeze_queue(struct request_queue *q, bool force_atomic)
 {
 	mutex_lock(&q->mq_freeze_lock);
+	if (force_atomic)
+		q->q_usage_counter.data->force_atomic = true;
 	q->mq_freeze_depth--;
 	WARN_ON_ONCE(q->mq_freeze_depth < 0);
 	if (!q->mq_freeze_depth) {
@@ -199,6 +201,11 @@ void blk_mq_unfreeze_queue(struct request_queue *q)
 	}
 	mutex_unlock(&q->mq_freeze_lock);
 }
+
+void blk_mq_unfreeze_queue(struct request_queue *q)
+{
+	__blk_mq_unfreeze_queue(q, false);
+}
 EXPORT_SYMBOL_GPL(blk_mq_unfreeze_queue);
 
 /*

block/blk.h

@@ -51,6 +51,8 @@ struct blk_flush_queue *blk_alloc_flush_queue(int node, int cmd_size,
 void blk_free_flush_queue(struct blk_flush_queue *q);
 
 void blk_freeze_queue(struct request_queue *q);
+void __blk_mq_unfreeze_queue(struct request_queue *q, bool force_atomic);
+void blk_queue_start_drain(struct request_queue *q);
 
 #define BIO_INLINE_VECS 4
 struct bio_vec *bvec_alloc(mempool_t *pool, unsigned short *nr_vecs,

block/genhd.c

@@ -26,6 +26,7 @@
 #include <linux/badblocks.h>
 
 #include "blk.h"
+#include "blk-rq-qos.h"
 
 static struct kobject *block_depr;
 
@@ -559,6 +560,8 @@ EXPORT_SYMBOL(device_add_disk);
  */
 void del_gendisk(struct gendisk *disk)
 {
+	struct request_queue *q = disk->queue;
+
 	might_sleep();
 
 	if (WARN_ON_ONCE(!disk_live(disk) && !(disk->flags & GENHD_FL_HIDDEN)))
@@ -575,8 +578,27 @@ void del_gendisk(struct gendisk *disk)
 	fsync_bdev(disk->part0);
 	__invalidate_device(disk->part0, true);
 
+	/*
+	 * Fail any new I/O.
+	 */
+	set_bit(GD_DEAD, &disk->state);
 	set_capacity(disk, 0);
 
+	/*
+	 * Prevent new I/O from crossing bio_queue_enter().
+	 */
+	blk_queue_start_drain(q);
+	blk_mq_freeze_queue_wait(q);
+
+	rq_qos_exit(q);
+	blk_sync_queue(q);
+	blk_flush_integrity();
+	/*
+	 * Allow using passthrough request again after the queue is torn down.
+	 */
+	blk_queue_flag_clear(QUEUE_FLAG_INIT_DONE, q);
+	__blk_mq_unfreeze_queue(q, true);
+
 	if (!(disk->flags & GENHD_FL_HIDDEN)) {
 		sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
 
@@ -1056,6 +1078,7 @@ static void disk_release(struct device *dev)
 	struct gendisk *disk = dev_to_disk(dev);
 
 	might_sleep();
+	WARN_ON_ONCE(disk_live(disk));
 
 	disk_release_events(disk);
 	kfree(disk->random);

block/kyber-iosched.c

@@ -151,6 +151,7 @@ struct kyber_ctx_queue {
 
 struct kyber_queue_data {
 	struct request_queue *q;
+	dev_t dev;
 
 	/*
 	 * Each scheduling domain has a limited number of in-flight requests
@@ -257,7 +258,7 @@ static int calculate_percentile(struct kyber_queue_data *kqd,
 	}
 	memset(buckets, 0, sizeof(kqd->latency_buckets[sched_domain][type]));
 
-	trace_kyber_latency(kqd->q, kyber_domain_names[sched_domain],
+	trace_kyber_latency(kqd->dev, kyber_domain_names[sched_domain],
 			    kyber_latency_type_names[type], percentile,
 			    bucket + 1, 1 << KYBER_LATENCY_SHIFT, samples);
 
@@ -270,7 +271,7 @@ static void kyber_resize_domain(struct kyber_queue_data *kqd,
 	depth = clamp(depth, 1U, kyber_depth[sched_domain]);
 	if (depth != kqd->domain_tokens[sched_domain].sb.depth) {
 		sbitmap_queue_resize(&kqd->domain_tokens[sched_domain], depth);
-		trace_kyber_adjust(kqd->q, kyber_domain_names[sched_domain],
+		trace_kyber_adjust(kqd->dev, kyber_domain_names[sched_domain],
 				   depth);
 	}
 }
@@ -366,6 +367,7 @@ static struct kyber_queue_data *kyber_queue_data_alloc(struct request_queue *q)
 		goto err;
 
 	kqd->q = q;
+	kqd->dev = disk_devt(q->disk);
 
 	kqd->cpu_latency = alloc_percpu_gfp(struct kyber_cpu_latency,
 					    GFP_KERNEL | __GFP_ZERO);
@@ -774,7 +776,7 @@ kyber_dispatch_cur_domain(struct kyber_queue_data *kqd,
 			list_del_init(&rq->queuelist);
 			return rq;
 		} else {
-			trace_kyber_throttled(kqd->q,
+			trace_kyber_throttled(kqd->dev,
 					      kyber_domain_names[khd->cur_domain]);
 		}
 	} else if (sbitmap_any_bit_set(&khd->kcq_map[khd->cur_domain])) {
@@ -787,7 +789,7 @@ kyber_dispatch_cur_domain(struct kyber_queue_data *kqd,
 			list_del_init(&rq->queuelist);
 			return rq;
 		} else {
-			trace_kyber_throttled(kqd->q,
+			trace_kyber_throttled(kqd->dev,
 					      kyber_domain_names[khd->cur_domain]);
 		}
 	}

drivers/ata/libahci_platform.c

@@ -440,10 +440,7 @@ struct ahci_host_priv *ahci_platform_get_resources(struct platform_device *pdev,
 	hpriv->phy_regulator = devm_regulator_get(dev, "phy");
 	if (IS_ERR(hpriv->phy_regulator)) {
 		rc = PTR_ERR(hpriv->phy_regulator);
-		if (rc == -EPROBE_DEFER)
 		goto err_out;
-		rc = 0;
-		hpriv->phy_regulator = NULL;
 	}
 
 	if (flags & AHCI_PLATFORM_GET_RESETS) {

drivers/ata/pata_legacy.c

@@ -352,7 +352,8 @@ static unsigned int pdc_data_xfer_vlb(struct ata_queued_cmd *qc,
 			iowrite32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
 		if (unlikely(slop)) {
-			__le32 pad;
+			__le32 pad = 0;
+
 			if (rw == READ) {
 				pad = cpu_to_le32(ioread32(ap->ioaddr.data_addr));
 				memcpy(buf + buflen - slop, &pad, slop);
@@ -742,7 +743,8 @@ static unsigned int vlb32_data_xfer(struct ata_queued_cmd *qc,
 			ioread32_rep(ap->ioaddr.data_addr, buf, buflen >> 2);
 
 		if (unlikely(slop)) {
-			__le32 pad;
+			__le32 pad = 0;
+
 			if (rw == WRITE) {
 				memcpy(&pad, buf + buflen - slop, slop);
 				iowrite32(le32_to_cpu(pad), ap->ioaddr.data_addr);

drivers/base/core.c

@@ -687,7 +687,8 @@ struct device_link *device_link_add(struct device *consumer,
 {
 	struct device_link *link;
 
-	if (!consumer || !supplier || flags & ~DL_ADD_VALID_FLAGS ||
+	if (!consumer || !supplier || consumer == supplier ||
+	    flags & ~DL_ADD_VALID_FLAGS ||
 	    (flags & DL_FLAG_STATELESS && flags & DL_MANAGED_LINK_FLAGS) ||
 	    (flags & DL_FLAG_SYNC_STATE_ONLY &&
 	     (flags & ~DL_FLAG_INFERRED) != DL_FLAG_SYNC_STATE_ONLY) ||

drivers/block/brd.c

@@ -373,10 +373,22 @@ static int brd_alloc(int i)
 	struct gendisk *disk;
 	char buf[DISK_NAME_LEN];
 
+	mutex_lock(&brd_devices_mutex);
+	list_for_each_entry(brd, &brd_devices, brd_list) {
+		if (brd->brd_number == i) {
+			mutex_unlock(&brd_devices_mutex);
+			return -EEXIST;
+		}
+	}
 	brd = kzalloc(sizeof(*brd), GFP_KERNEL);
-	if (!brd)
+	if (!brd) {
+		mutex_unlock(&brd_devices_mutex);
 		return -ENOMEM;
+	}
 	brd->brd_number		= i;
+	list_add_tail(&brd->brd_list, &brd_devices);
+	mutex_unlock(&brd_devices_mutex);
+
 	spin_lock_init(&brd->brd_lock);
 	INIT_RADIX_TREE(&brd->brd_pages, GFP_ATOMIC);
 
@@ -411,37 +423,30 @@ static int brd_alloc(int i)
 	blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue);
 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue);
 	add_disk(disk);
-	list_add_tail(&brd->brd_list, &brd_devices);
 
 	return 0;
 
 out_free_dev:
+	mutex_lock(&brd_devices_mutex);
+	list_del(&brd->brd_list);
+	mutex_unlock(&brd_devices_mutex);
 	kfree(brd);
 	return -ENOMEM;
 }
 
 static void brd_probe(dev_t dev)
 {
-	int i = MINOR(dev) / max_part;
+	brd_alloc(MINOR(dev) / max_part);
-	struct brd_device *brd;
-
-	mutex_lock(&brd_devices_mutex);
-	list_for_each_entry(brd, &brd_devices, brd_list) {
-		if (brd->brd_number == i)
-			goto out_unlock;
-	}
-
-	brd_alloc(i);
-out_unlock:
-	mutex_unlock(&brd_devices_mutex);
 }
 
 static void brd_del_one(struct brd_device *brd)
 {
-	list_del(&brd->brd_list);
 	del_gendisk(brd->brd_disk);
 	blk_cleanup_disk(brd->brd_disk);
 	brd_free_pages(brd);
+	mutex_lock(&brd_devices_mutex);
+	list_del(&brd->brd_list);
+	mutex_unlock(&brd_devices_mutex);
 	kfree(brd);
 }
 
@@ -491,25 +496,21 @@ static int __init brd_init(void)
 
 	brd_debugfs_dir = debugfs_create_dir("ramdisk_pages", NULL);
 
-	mutex_lock(&brd_devices_mutex);
 	for (i = 0; i < rd_nr; i++) {
 		err = brd_alloc(i);
 		if (err)
 			goto out_free;
 	}
 
-	mutex_unlock(&brd_devices_mutex);
-
 	pr_info("brd: module loaded\n");
 	return 0;
 
 out_free:
+	unregister_blkdev(RAMDISK_MAJOR, "ramdisk");
 	debugfs_remove_recursive(brd_debugfs_dir);
 
 	list_for_each_entry_safe(brd, next, &brd_devices, brd_list)
 		brd_del_one(brd);
-	mutex_unlock(&brd_devices_mutex);
-	unregister_blkdev(RAMDISK_MAJOR, "ramdisk");
 
 	pr_info("brd: module NOT loaded !!!\n");
 	return err;
@@ -519,13 +520,12 @@ static void __exit brd_exit(void)
 {
 	struct brd_device *brd, *next;
 
+	unregister_blkdev(RAMDISK_MAJOR, "ramdisk");
 	debugfs_remove_recursive(brd_debugfs_dir);
 
 	list_for_each_entry_safe(brd, next, &brd_devices, brd_list)
 		brd_del_one(brd);
 
-	unregister_blkdev(RAMDISK_MAJOR, "ramdisk");
-
 	pr_info("brd: module unloaded\n");
 }
 

drivers/block/rnbd/rnbd-clt-sysfs.c

@@ -71,8 +71,10 @@ static int rnbd_clt_parse_map_options(const char *buf, size_t max_path_cnt,
 	int opt_mask = 0;
 	int token;
 	int ret = -EINVAL;
-	int i, dest_port, nr_poll_queues;
+	int nr_poll_queues = 0;
+	int dest_port = 0;
 	int p_cnt = 0;
+	int i;
 
 	options = kstrdup(buf, GFP_KERNEL);
 	if (!options)

drivers/block/virtio_blk.c

@@ -691,28 +691,6 @@ static const struct blk_mq_ops virtio_mq_ops = {
 static unsigned int virtblk_queue_depth;
 module_param_named(queue_depth, virtblk_queue_depth, uint, 0444);
 
-static int virtblk_validate(struct virtio_device *vdev)
-{
-	u32 blk_size;
-
-	if (!vdev->config->get) {
-		dev_err(&vdev->dev, "%s failure: config access disabled\n",
-			__func__);
-		return -EINVAL;
-	}
-
-	if (!virtio_has_feature(vdev, VIRTIO_BLK_F_BLK_SIZE))
-		return 0;
-
-	blk_size = virtio_cread32(vdev,
-			offsetof(struct virtio_blk_config, blk_size));
-
-	if (blk_size < SECTOR_SIZE || blk_size > PAGE_SIZE)
-		__virtio_clear_bit(vdev, VIRTIO_BLK_F_BLK_SIZE);
-
-	return 0;
-}
-
 static int virtblk_probe(struct virtio_device *vdev)
 {
 	struct virtio_blk *vblk;
@@ -724,6 +702,12 @@ static int virtblk_probe(struct virtio_device *vdev)
 	u8 physical_block_exp, alignment_offset;
 	unsigned int queue_depth;
 
+	if (!vdev->config->get) {
+		dev_err(&vdev->dev, "%s failure: config access disabled\n",
+			__func__);
+		return -EINVAL;
+	}
+
 	err = ida_simple_get(&vd_index_ida, 0, minor_to_index(1 << MINORBITS),
 			     GFP_KERNEL);
 	if (err < 0)
@@ -838,14 +822,6 @@ static int virtblk_probe(struct virtio_device *vdev)
 	else
 		blk_size = queue_logical_block_size(q);
 
-	if (blk_size < SECTOR_SIZE || blk_size > PAGE_SIZE) {
-		dev_err(&vdev->dev,
-			"block size is changed unexpectedly, now is %u\n",
-			blk_size);
-		err = -EINVAL;
-		goto out_cleanup_disk;
-	}
-
 	/* Use topology information if available */
 	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_TOPOLOGY,
 				   struct virtio_blk_config, physical_block_exp,
@@ -1011,7 +987,6 @@ static struct virtio_driver virtio_blk = {
 	.driver.name			= KBUILD_MODNAME,
 	.driver.owner			= THIS_MODULE,
 	.id_table			= id_table,
-	.validate			= virtblk_validate,
 	.probe				= virtblk_probe,
 	.remove				= virtblk_remove,
 	.config_changed			= virtblk_config_changed,

drivers/bus/Kconfig

@@ -152,18 +152,6 @@ config QCOM_EBI2
 	  Interface 2, which can be used to connect things like NAND Flash,
 	  SRAM, ethernet adapters, FPGAs and LCD displays.
 
-config SIMPLE_PM_BUS
-	tristate "Simple Power-Managed Bus Driver"
-	depends on OF && PM
-	help
-	  Driver for transparent busses that don't need a real driver, but
-	  where the bus controller is part of a PM domain, or under the control
-	  of a functional clock, and thus relies on runtime PM for managing
-	  this PM domain and/or clock.
-	  An example of such a bus controller is the Renesas Bus State
-	  Controller (BSC, sometimes called "LBSC within Bus Bridge", or
-	  "External Bus Interface") as found on several Renesas ARM SoCs.
-
 config SUN50I_DE2_BUS
 	bool "Allwinner A64 DE2 Bus Driver"
 	  default ARM64

drivers/bus/Makefile

@@ -27,7 +27,7 @@ obj-$(CONFIG_OMAP_OCP2SCP)	+= omap-ocp2scp.o
 obj-$(CONFIG_QCOM_EBI2)		+= qcom-ebi2.o
 obj-$(CONFIG_SUN50I_DE2_BUS)	+= sun50i-de2.o
 obj-$(CONFIG_SUNXI_RSB)		+= sunxi-rsb.o
-obj-$(CONFIG_SIMPLE_PM_BUS)	+= simple-pm-bus.o
+obj-$(CONFIG_OF)		+= simple-pm-bus.o
 obj-$(CONFIG_TEGRA_ACONNECT)	+= tegra-aconnect.o
 obj-$(CONFIG_TEGRA_GMI)		+= tegra-gmi.o
 obj-$(CONFIG_TI_PWMSS)		+= ti-pwmss.o

drivers/bus/simple-pm-bus.c

@@ -13,11 +13,36 @@
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 
-
 static int simple_pm_bus_probe(struct platform_device *pdev)
 {
-	const struct of_dev_auxdata *lookup = dev_get_platdata(&pdev->dev);
+	const struct device *dev = &pdev->dev;
-	struct device_node *np = pdev->dev.of_node;
+	const struct of_dev_auxdata *lookup = dev_get_platdata(dev);
+	struct device_node *np = dev->of_node;
+	const struct of_device_id *match;
+
+	/*
+	 * Allow user to use driver_override to bind this driver to a
+	 * transparent bus device which has a different compatible string
+	 * that's not listed in simple_pm_bus_of_match. We don't want to do any
+	 * of the simple-pm-bus tasks for these devices, so return early.
+	 */
+	if (pdev->driver_override)
+		return 0;
+
+	match = of_match_device(dev->driver->of_match_table, dev);
+	/*
+	 * These are transparent bus devices (not simple-pm-bus matches) that
+	 * have their child nodes populated automatically.  So, don't need to
+	 * do anything more. We only match with the device if this driver is
+	 * the most specific match because we don't want to incorrectly bind to
+	 * a device that has a more specific driver.
+	 */
+	if (match && match->data) {
+		if (of_property_match_string(np, "compatible", match->compatible) == 0)
+			return 0;
+		else
+			return -ENODEV;
+	}
 
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
@@ -31,14 +56,25 @@ static int simple_pm_bus_probe(struct platform_device *pdev)
 
 static int simple_pm_bus_remove(struct platform_device *pdev)
 {
+	const void *data = of_device_get_match_data(&pdev->dev);
+
+	if (pdev->driver_override || data)
+		return 0;
+
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
 	pm_runtime_disable(&pdev->dev);
 	return 0;
 }
 
+#define ONLY_BUS	((void *) 1) /* Match if the device is only a bus. */
+
 static const struct of_device_id simple_pm_bus_of_match[] = {
 	{ .compatible = "simple-pm-bus", },
+	{ .compatible = "simple-bus",	.data = ONLY_BUS },
+	{ .compatible = "simple-mfd",	.data = ONLY_BUS },
+	{ .compatible = "isa",		.data = ONLY_BUS },
+	{ .compatible = "arm,amba-bus",	.data = ONLY_BUS },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, simple_pm_bus_of_match);

drivers/clk/qcom/Kconfig

@@ -564,6 +564,7 @@ config SM_GCC_6125
 
 config SM_GCC_6350
 	tristate "SM6350 Global Clock Controller"
+	select QCOM_GDSC
 	help
 	  Support for the global clock controller on SM6350 devices.
 	  Say Y if you want to use peripheral devices such as UART,

drivers/clk/qcom/gcc-sm6115.c

@@ -3242,7 +3242,7 @@ static struct gdsc hlos1_vote_turing_mmu_tbu1_gdsc = {
 };
 
 static struct gdsc hlos1_vote_turing_mmu_tbu0_gdsc = {
-	.gdscr = 0x7d060,
+	.gdscr = 0x7d07c,
 	.pd = {
 		.name = "hlos1_vote_turing_mmu_tbu0",
 	},

drivers/clk/renesas/r9a07g044-cpg.c

@@ -186,6 +186,8 @@ static struct rzg2l_reset r9a07g044_resets[] = {
 
 static const unsigned int r9a07g044_crit_mod_clks[] __initconst = {
 	MOD_CLK_BASE + R9A07G044_GIC600_GICCLK,
+	MOD_CLK_BASE + R9A07G044_IA55_CLK,
+	MOD_CLK_BASE + R9A07G044_DMAC_ACLK,
 };
 
 const struct rzg2l_cpg_info r9a07g044_cpg_info = {

drivers/clk/renesas/rzg2l-cpg.c

@@ -391,7 +391,7 @@ static int rzg2l_mod_clock_is_enabled(struct clk_hw *hw)
 
 	value = readl(priv->base + CLK_MON_R(clock->off));
 
-	return !(value & bitmask);
+	return value & bitmask;
 }
 
 static const struct clk_ops rzg2l_mod_clock_ops = {

drivers/clk/socfpga/clk-agilex.c

@@ -165,13 +165,6 @@ static const struct clk_parent_data mpu_mux[] = {
 	  .name = "boot_clk", },
 };
 
-static const struct clk_parent_data s2f_usr0_mux[] = {
-	{ .fw_name = "f2s-free-clk",
-	  .name = "f2s-free-clk", },
-	{ .fw_name = "boot_clk",
-	  .name = "boot_clk", },
-};
-
 static const struct clk_parent_data emac_mux[] = {
 	{ .fw_name = "emaca_free_clk",
 	  .name = "emaca_free_clk", },
@@ -312,8 +305,6 @@ static const struct stratix10_gate_clock agilex_gate_clks[] = {
 	  4, 0x44, 28, 1, 0, 0, 0},
 	{ AGILEX_CS_TIMER_CLK, "cs_timer_clk", NULL, noc_mux, ARRAY_SIZE(noc_mux), 0, 0x24,
 	  5, 0, 0, 0, 0x30, 1, 0},
-	{ AGILEX_S2F_USER0_CLK, "s2f_user0_clk", NULL, s2f_usr0_mux, ARRAY_SIZE(s2f_usr0_mux), 0, 0x24,
-	  6, 0, 0, 0, 0, 0, 0},
 	{ AGILEX_EMAC0_CLK, "emac0_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0x7C,
 	  0, 0, 0, 0, 0x94, 26, 0},
 	{ AGILEX_EMAC1_CLK, "emac1_clk", NULL, emac_mux, ARRAY_SIZE(emac_mux), 0, 0x7C,

drivers/edac/armada_xp_edac.c

@@ -178,7 +178,7 @@ static void axp_mc_check(struct mem_ctl_info *mci)
 				     "details unavailable (multiple errors)");
 	if (cnt_dbe)
 		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
-				     cnt_sbe, /* error count */
+				     cnt_dbe, /* error count */
 				     0, 0, 0, /* pfn, offset, syndrome */
 				     -1, -1, -1, /* top, mid, low layer */
 				     mci->ctl_name,

drivers/firmware/efi/cper.c

@@ -25,8 +25,6 @@
 #include <acpi/ghes.h>
 #include <ras/ras_event.h>
 
-static char rcd_decode_str[CPER_REC_LEN];
-
 /*
  * CPER record ID need to be unique even after reboot, because record
  * ID is used as index for ERST storage, while CPER records from
@@ -312,6 +310,7 @@ const char *cper_mem_err_unpack(struct trace_seq *p,
 				struct cper_mem_err_compact *cmem)
 {
 	const char *ret = trace_seq_buffer_ptr(p);
+	char rcd_decode_str[CPER_REC_LEN];
 
 	if (cper_mem_err_location(cmem, rcd_decode_str))
 		trace_seq_printf(p, "%s", rcd_decode_str);
@@ -326,6 +325,7 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem,
 	int len)
 {
 	struct cper_mem_err_compact cmem;
+	char rcd_decode_str[CPER_REC_LEN];
 
 	/* Don't trust UEFI 2.1/2.2 structure with bad validation bits */
 	if (len == sizeof(struct cper_sec_mem_err_old) &&

drivers/firmware/efi/libstub/fdt.c

@@ -271,7 +271,7 @@ efi_status_t allocate_new_fdt_and_exit_boot(void *handle,
 		return status;
 	}
 
-	efi_info("Exiting boot services and installing virtual address map...\n");
+	efi_info("Exiting boot services...\n");
 
 	map.map = &memory_map;
 	status = efi_allocate_pages(MAX_FDT_SIZE, new_fdt_addr, ULONG_MAX);

drivers/firmware/efi/runtime-wrappers.c

@@ -414,7 +414,7 @@ static void virt_efi_reset_system(int reset_type,
 				  unsigned long data_size,
 				  efi_char16_t *data)
 {
-	if (down_interruptible(&efi_runtime_lock)) {
+	if (down_trylock(&efi_runtime_lock)) {
 		pr_warn("failed to invoke the reset_system() runtime service:\n"
 			"could not get exclusive access to the firmware\n");
 		return;

drivers/fpga/ice40-spi.c

@@ -192,12 +192,19 @@ static const struct of_device_id ice40_fpga_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, ice40_fpga_of_match);
 
+static const struct spi_device_id ice40_fpga_spi_ids[] = {
+	{ .name = "ice40-fpga-mgr", },
+	{},
+};
+MODULE_DEVICE_TABLE(spi, ice40_fpga_spi_ids);
+
 static struct spi_driver ice40_fpga_driver = {
 	.probe = ice40_fpga_probe,
 	.driver = {
 		.name = "ice40spi",
 		.of_match_table = of_match_ptr(ice40_fpga_of_match),
 	},
+	.id_table = ice40_fpga_spi_ids,
 };
 
 module_spi_driver(ice40_fpga_driver);

drivers/iio/accel/fxls8962af-core.c

@@ -738,7 +738,7 @@ static irqreturn_t fxls8962af_interrupt(int irq, void *p)
 
 	if (reg & FXLS8962AF_INT_STATUS_SRC_BUF) {
 		ret = fxls8962af_fifo_flush(indio_dev);
-		if (ret)
+		if (ret < 0)
 			return IRQ_NONE;
 
 		return IRQ_HANDLED;

drivers/iio/adc/ad7192.c

@@ -293,6 +293,7 @@ static const struct ad_sigma_delta_info ad7192_sigma_delta_info = {
 	.has_registers = true,
 	.addr_shift = 3,
 	.read_mask = BIT(6),
+	.irq_flags = IRQF_TRIGGER_FALLING,
 };
 
 static const struct ad_sd_calib_data ad7192_calib_arr[8] = {

drivers/iio/adc/ad7780.c

@@ -203,7 +203,7 @@ static const struct ad_sigma_delta_info ad7780_sigma_delta_info = {
 	.set_mode = ad7780_set_mode,
 	.postprocess_sample = ad7780_postprocess_sample,
 	.has_registers = false,
-	.irq_flags = IRQF_TRIGGER_LOW,
+	.irq_flags = IRQF_TRIGGER_FALLING,
 };
 
 #define _AD7780_CHANNEL(_bits, _wordsize, _mask_all)		\

drivers/iio/adc/ad7793.c

@@ -206,7 +206,7 @@ static const struct ad_sigma_delta_info ad7793_sigma_delta_info = {
 	.has_registers = true,
 	.addr_shift = 3,
 	.read_mask = BIT(6),
-	.irq_flags = IRQF_TRIGGER_LOW,
+	.irq_flags = IRQF_TRIGGER_FALLING,
 };
 
 static const struct ad_sd_calib_data ad7793_calib_arr[6] = {

drivers/iio/adc/aspeed_adc.c

@@ -183,6 +183,7 @@ static int aspeed_adc_probe(struct platform_device *pdev)
 
 	data = iio_priv(indio_dev);
 	data->dev = &pdev->dev;
+	platform_set_drvdata(pdev, indio_dev);
 
 	data->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(data->base))

drivers/iio/adc/max1027.c

@@ -103,7 +103,7 @@ MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids);
 			.sign = 'u',					\
 			.realbits = depth,				\
 			.storagebits = 16,				\
-			.shift = 2,					\
+			.shift = (depth == 10) ? 2 : 0,			\
 			.endianness = IIO_BE,				\
 		},							\
 	}
@@ -142,7 +142,6 @@ MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids);
 	MAX1027_V_CHAN(11, depth)
 
 #define MAX1X31_CHANNELS(depth)			\
-	MAX1X27_CHANNELS(depth),		\
 	MAX1X29_CHANNELS(depth),		\
 	MAX1027_V_CHAN(12, depth),		\
 	MAX1027_V_CHAN(13, depth),		\

drivers/iio/adc/mt6577_auxadc.c

@@ -82,6 +82,10 @@ static const struct iio_chan_spec mt6577_auxadc_iio_channels[] = {
 	MT6577_AUXADC_CHANNEL(15),
 };
 
+/* For Voltage calculation */
+#define VOLTAGE_FULL_RANGE  1500	/* VA voltage */
+#define AUXADC_PRECISE      4096	/* 12 bits */
+
 static int mt_auxadc_get_cali_data(int rawdata, bool enable_cali)
 {
 	return rawdata;
@@ -191,6 +195,10 @@ static int mt6577_auxadc_read_raw(struct iio_dev *indio_dev,
 		}
 		if (adc_dev->dev_comp->sample_data_cali)
 			*val = mt_auxadc_get_cali_data(*val, true);
+
+		/* Convert adc raw data to voltage: 0 - 1500 mV */
+		*val = *val * VOLTAGE_FULL_RANGE / AUXADC_PRECISE;
+
 		return IIO_VAL_INT;
 
 	default:

drivers/iio/adc/rzg2l_adc.c

@@ -401,7 +401,7 @@ static int rzg2l_adc_hw_init(struct rzg2l_adc *adc)
 exit_hw_init:
 	clk_disable_unprepare(adc->pclk);
 
-	return 0;
+	return ret;
 }
 
 static void rzg2l_adc_pm_runtime_disable(void *data)
@@ -570,8 +570,10 @@ static int __maybe_unused rzg2l_adc_pm_runtime_resume(struct device *dev)
 		return ret;
 
 	ret = clk_prepare_enable(adc->adclk);
-	if (ret)
+	if (ret) {
+		clk_disable_unprepare(adc->pclk);
 		return ret;
+	}
 
 	rzg2l_adc_pwr(adc, true);
 

drivers/iio/adc/ti-adc128s052.c

@@ -171,7 +171,13 @@ static int adc128_probe(struct spi_device *spi)
 	mutex_init(&adc->lock);
 
 	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto err_disable_regulator;
 
+	return 0;
+
+err_disable_regulator:
+	regulator_disable(adc->reg);
 	return ret;
 }
 

drivers/iio/common/ssp_sensors/ssp_spi.c

@@ -137,7 +137,7 @@ static int ssp_print_mcu_debug(char *data_frame, int *data_index,
 	if (length > received_len - *data_index || length <= 0) {
 		ssp_dbg("[SSP]: MSG From MCU-invalid debug length(%d/%d)\n",
 			length, received_len);
-		return length ? length : -EPROTO;
+		return -EPROTO;
 	}
 
 	ssp_dbg("[SSP]: MSG From MCU - %s\n", &data_frame[*data_index]);
@@ -273,6 +273,8 @@ static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len)
 	for (idx = 0; idx < len;) {
 		switch (dataframe[idx++]) {
 		case SSP_MSG2AP_INST_BYPASS_DATA:
+			if (idx >= len)
+				return -EPROTO;
 			sd = dataframe[idx++];
 			if (sd < 0 || sd >= SSP_SENSOR_MAX) {
 				dev_err(SSP_DEV,
@@ -282,10 +284,13 @@ static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len)
 
 			if (indio_devs[sd]) {
 				spd = iio_priv(indio_devs[sd]);
-				if (spd->process_data)
+				if (spd->process_data) {
+					if (idx >= len)
+						return -EPROTO;
 					spd->process_data(indio_devs[sd],
 							  &dataframe[idx],
 							  data->timestamp);
+				}
 			} else {
 				dev_err(SSP_DEV, "no client for frame\n");
 			}
@@ -293,6 +298,8 @@ static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len)
 			idx += ssp_offset_map[sd];
 			break;
 		case SSP_MSG2AP_INST_DEBUG_DATA:
+			if (idx >= len)
+				return -EPROTO;
 			sd = ssp_print_mcu_debug(dataframe, &idx, len);
 			if (sd) {
 				dev_err(SSP_DEV,

drivers/iio/dac/ti-dac5571.c

@@ -350,6 +350,7 @@ static int dac5571_probe(struct i2c_client *client,
 		data->dac5571_pwrdwn = dac5571_pwrdwn_quad;
 		break;
 	default:
+		ret = -EINVAL;
 		goto err;
 	}
 

drivers/iio/imu/adis16475.c

@@ -353,10 +353,11 @@ static int adis16475_set_freq(struct adis16475 *st, const u32 freq)
 	if (dec > st->info->max_dec)
 		dec = st->info->max_dec;
 
-	ret = adis_write_reg_16(&st->adis, ADIS16475_REG_DEC_RATE, dec);
+	ret = __adis_write_reg_16(&st->adis, ADIS16475_REG_DEC_RATE, dec);
 	if (ret)
 		goto error;
 
+	adis_dev_unlock(&st->adis);
 	/*
 	 * If decimation is used, then gyro and accel data will have meaningful
 	 * bits on the LSB registers. This info is used on the trigger handler.

drivers/iio/imu/adis16480.c

@@ -144,6 +144,7 @@ struct adis16480_chip_info {
 	unsigned int max_dec_rate;
 	const unsigned int *filter_freqs;
 	bool has_pps_clk_mode;
+	bool has_sleep_cnt;
 	const struct adis_data adis_data;
 };
 
@@ -939,6 +940,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
 		.temp_scale = 5650, /* 5.65 milli degree Celsius */
 		.int_clk = 2460000,
 		.max_dec_rate = 2048,
+		.has_sleep_cnt = true,
 		.filter_freqs = adis16480_def_filter_freqs,
 		.adis_data = ADIS16480_DATA(16375, &adis16485_timeouts, 0),
 	},
@@ -952,6 +954,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
 		.temp_scale = 5650, /* 5.65 milli degree Celsius */
 		.int_clk = 2460000,
 		.max_dec_rate = 2048,
+		.has_sleep_cnt = true,
 		.filter_freqs = adis16480_def_filter_freqs,
 		.adis_data = ADIS16480_DATA(16480, &adis16480_timeouts, 0),
 	},
@@ -965,6 +968,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
 		.temp_scale = 5650, /* 5.65 milli degree Celsius */
 		.int_clk = 2460000,
 		.max_dec_rate = 2048,
+		.has_sleep_cnt = true,
 		.filter_freqs = adis16480_def_filter_freqs,
 		.adis_data = ADIS16480_DATA(16485, &adis16485_timeouts, 0),
 	},
@@ -978,6 +982,7 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
 		.temp_scale = 5650, /* 5.65 milli degree Celsius */
 		.int_clk = 2460000,
 		.max_dec_rate = 2048,
+		.has_sleep_cnt = true,
 		.filter_freqs = adis16480_def_filter_freqs,
 		.adis_data = ADIS16480_DATA(16488, &adis16485_timeouts, 0),
 	},
@@ -1425,9 +1430,12 @@ static int adis16480_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = devm_add_action_or_reset(&spi->dev, adis16480_stop, indio_dev);
+	if (st->chip_info->has_sleep_cnt) {
+		ret = devm_add_action_or_reset(&spi->dev, adis16480_stop,
+					       indio_dev);
 		if (ret)
 			return ret;
+	}
 
 	ret = adis16480_config_irq_pin(spi->dev.of_node, st);
 	if (ret)

drivers/iio/light/opt3001.c

@@ -276,6 +276,8 @@ static int opt3001_get_lux(struct opt3001 *opt, int *val, int *val2)
 		ret = wait_event_timeout(opt->result_ready_queue,
 				opt->result_ready,
 				msecs_to_jiffies(OPT3001_RESULT_READY_LONG));
+		if (ret == 0)
+			return -ETIMEDOUT;
 	} else {
 		/* Sleep for result ready time */
 		timeout = (opt->int_time == OPT3001_INT_TIME_SHORT) ?
@@ -312,9 +314,7 @@ err:
 		/* Disallow IRQ to access the device while lock is active */
 		opt->ok_to_ignore_lock = false;
 
-	if (ret == 0)
+	if (ret < 0)
-		return -ETIMEDOUT;
-	else if (ret < 0)
 		return ret;
 
 	if (opt->use_irq) {

drivers/input/joystick/xpad.c

@@ -334,6 +334,7 @@ static const struct xpad_device {
 	{ 0x24c6, 0x5b03, "Thrustmaster Ferrari 458 Racing Wheel", 0, XTYPE_XBOX360 },
 	{ 0x24c6, 0x5d04, "Razer Sabertooth", 0, XTYPE_XBOX360 },
 	{ 0x24c6, 0xfafe, "Rock Candy Gamepad for Xbox 360", 0, XTYPE_XBOX360 },
+	{ 0x3285, 0x0607, "Nacon GC-100", 0, XTYPE_XBOX360 },
 	{ 0x3767, 0x0101, "Fanatec Speedster 3 Forceshock Wheel", 0, XTYPE_XBOX },
 	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
 	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
@@ -451,6 +452,7 @@ static const struct usb_device_id xpad_table[] = {
 	XPAD_XBOXONE_VENDOR(0x24c6),		/* PowerA Controllers */
 	XPAD_XBOXONE_VENDOR(0x2e24),		/* Hyperkin Duke X-Box One pad */
 	XPAD_XBOX360_VENDOR(0x2f24),		/* GameSir Controllers */
+	XPAD_XBOX360_VENDOR(0x3285),		/* Nacon GC-100 */
 	{ }
 };
 

drivers/input/keyboard/snvs_pwrkey.c

@@ -3,6 +3,7 @@
 // Driver for the IMX SNVS ON/OFF Power Key
 // Copyright (C) 2015 Freescale Semiconductor, Inc. All Rights Reserved.
 
+#include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/init.h>
@@ -99,6 +100,11 @@ static irqreturn_t imx_snvs_pwrkey_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static void imx_snvs_pwrkey_disable_clk(void *data)
+{
+	clk_disable_unprepare(data);
+}
+
 static void imx_snvs_pwrkey_act(void *pdata)
 {
 	struct pwrkey_drv_data *pd = pdata;
@@ -111,6 +117,7 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 	struct pwrkey_drv_data *pdata;
 	struct input_dev *input;
 	struct device_node *np;
+	struct clk *clk;
 	int error;
 	u32 vid;
 
@@ -134,6 +141,28 @@ static int imx_snvs_pwrkey_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev, "KEY_POWER without setting in dts\n");
 	}
 
+	clk = devm_clk_get_optional(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "Failed to get snvs clock (%pe)\n", clk);
+		return PTR_ERR(clk);
+	}
+
+	error = clk_prepare_enable(clk);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to enable snvs clock (%pe)\n",
+			ERR_PTR(error));
+		return error;
+	}
+
+	error = devm_add_action_or_reset(&pdev->dev,
+					 imx_snvs_pwrkey_disable_clk, clk);
+	if (error) {
+		dev_err(&pdev->dev,
+			"Failed to register clock cleanup handler (%pe)\n",
+			ERR_PTR(error));
+		return error;
+	}
+
 	pdata->wakeup = of_property_read_bool(np, "wakeup-source");
 
 	pdata->irq = platform_get_irq(pdev, 0);

drivers/input/touchscreen.c

@@ -80,12 +80,12 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch,
 
 	data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-x",
 						input_abs_get_min(input, axis_x),
-						&minimum) |
+						&minimum);
-		       touchscreen_get_prop_u32(dev, "touchscreen-size-x",
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-size-x",
 						 input_abs_get_max(input,
 								   axis_x) + 1,
-						&maximum) |
+						 &maximum);
-		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x",
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x",
 						 input_abs_get_fuzz(input, axis_x),
 						 &fuzz);
 	if (data_present)
@@ -93,12 +93,12 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch,
 
 	data_present = touchscreen_get_prop_u32(dev, "touchscreen-min-y",
 						input_abs_get_min(input, axis_y),
-						&minimum) |
+						&minimum);
-		       touchscreen_get_prop_u32(dev, "touchscreen-size-y",
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-size-y",
 						 input_abs_get_max(input,
 								   axis_y) + 1,
-						&maximum) |
+						 &maximum);
-		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y",
+	data_present |= touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y",
 						 input_abs_get_fuzz(input, axis_y),
 						 &fuzz);
 	if (data_present)
@@ -108,8 +108,8 @@ void touchscreen_parse_properties(struct input_dev *input, bool multitouch,
 	data_present = touchscreen_get_prop_u32(dev,
 						"touchscreen-max-pressure",
 						input_abs_get_max(input, axis),
-						&maximum) |
+						&maximum);
-		       touchscreen_get_prop_u32(dev,
+	data_present |= touchscreen_get_prop_u32(dev,
 						 "touchscreen-fuzz-pressure",
 						 input_abs_get_fuzz(input, axis),
 						 &fuzz);

drivers/input/touchscreen/resistive-adc-touch.c

@@ -71,6 +71,7 @@ static int grts_cb(const void *data, void *private)
 		unsigned int z2 = touch_info[st->ch_map[GRTS_CH_Z2]];
 		unsigned int Rt;
 
+		if (likely(x && z1)) {
 			Rt = z2;
 			Rt -= z1;
 			Rt *= st->x_plate_ohms;
@@ -79,12 +80,14 @@ static int grts_cb(const void *data, void *private)
 			Rt /= z1;
 			Rt = DIV_ROUND_CLOSEST(Rt, 256);
 			/*
-		 * On increased pressure the resistance (Rt) is decreasing
+			 * On increased pressure the resistance (Rt) is
-		 * so, convert values to make it looks as real pressure.
+			 * decreasing so, convert values to make it looks as
+			 * real pressure.
 			 */
 			if (Rt < GRTS_DEFAULT_PRESSURE_MAX)
 				press = GRTS_DEFAULT_PRESSURE_MAX - Rt;
 		}
+	}
 
 	if ((!x && !y) || (st->pressure && (press < st->pressure_min))) {
 		/* report end of touch */

drivers/misc/Kconfig

@@ -224,6 +224,7 @@ config HI6421V600_IRQ
 	tristate "HiSilicon Hi6421v600 IRQ and powerkey"
 	depends on OF
 	depends on SPMI
+	depends on HAS_IOMEM
 	select MFD_CORE
 	select REGMAP_SPMI
 	help

drivers/misc/cb710/sgbuf2.c

@@ -47,7 +47,7 @@ static inline bool needs_unaligned_copy(const void *ptr)
 #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
 	return false;
 #else
-	return ((ptr - NULL) & 3) != 0;
+	return ((uintptr_t)ptr & 3) != 0;
 #endif
 }
 

drivers/misc/eeprom/at25.c

@@ -366,6 +366,13 @@ static const struct of_device_id at25_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, at25_of_match);
 
+static const struct spi_device_id at25_spi_ids[] = {
+	{ .name = "at25",},
+	{ .name = "fm25",},
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, at25_spi_ids);
+
 static int at25_probe(struct spi_device *spi)
 {
 	struct at25_data	*at25 = NULL;
@@ -491,6 +498,7 @@ static struct spi_driver at25_driver = {
 		.dev_groups	= sernum_groups,
 	},
 	.probe		= at25_probe,
+	.id_table	= at25_spi_ids,
 };
 
 module_spi_driver(at25_driver);

drivers/misc/eeprom/eeprom_93xx46.c

@@ -406,6 +406,23 @@ static const struct of_device_id eeprom_93xx46_of_table[] = {
 };
 MODULE_DEVICE_TABLE(of, eeprom_93xx46_of_table);
 
+static const struct spi_device_id eeprom_93xx46_spi_ids[] = {
+	{ .name = "eeprom-93xx46",
+	  .driver_data = (kernel_ulong_t)&at93c46_data, },
+	{ .name = "at93c46",
+	  .driver_data = (kernel_ulong_t)&at93c46_data, },
+	{ .name = "at93c46d",
+	  .driver_data = (kernel_ulong_t)&atmel_at93c46d_data, },
+	{ .name = "at93c56",
+	  .driver_data = (kernel_ulong_t)&at93c56_data, },
+	{ .name = "at93c66",
+	  .driver_data = (kernel_ulong_t)&at93c66_data, },
+	{ .name = "93lc46b",
+	  .driver_data = (kernel_ulong_t)&microchip_93lc46b_data, },
+	{}
+};
+MODULE_DEVICE_TABLE(spi, eeprom_93xx46_spi_ids);
+
 static int eeprom_93xx46_probe_dt(struct spi_device *spi)
 {
 	const struct of_device_id *of_id =
@@ -555,6 +572,7 @@ static struct spi_driver eeprom_93xx46_driver = {
 	},
 	.probe		= eeprom_93xx46_probe,
 	.remove		= eeprom_93xx46_remove,
+	.id_table	= eeprom_93xx46_spi_ids,
 };
 
 module_spi_driver(eeprom_93xx46_driver);

drivers/misc/fastrpc.c

@@ -814,10 +814,12 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx)
 			rpra[i].pv = (u64) ctx->args[i].ptr;
 			pages[i].addr = ctx->maps[i]->phys;
 
+			mmap_read_lock(current->mm);
 			vma = find_vma(current->mm, ctx->args[i].ptr);
 			if (vma)
 				pages[i].addr += ctx->args[i].ptr -
 						 vma->vm_start;
+			mmap_read_unlock(current->mm);
 
 			pg_start = (ctx->args[i].ptr & PAGE_MASK) >> PAGE_SHIFT;
 			pg_end = ((ctx->args[i].ptr + len - 1) & PAGE_MASK) >>

drivers/misc/gehc-achc.c

@@ -539,6 +539,7 @@ static int gehc_achc_probe(struct spi_device *spi)
 
 static const struct spi_device_id gehc_achc_id[] = {
 	{ "ge,achc", 0 },
+	{ "achc", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, gehc_achc_id);

drivers/misc/habanalabs/common/command_submission.c

@@ -2649,11 +2649,18 @@ put_ctx:
 free_seq_arr:
 	kfree(cs_seq_arr);
 
-	/* update output args */
-	memset(args, 0, sizeof(*args));
 	if (rc)
 		return rc;
 
+	if (mcs_data.wait_status == -ERESTARTSYS) {
+		dev_err_ratelimited(hdev->dev,
+				"user process got signal while waiting for Multi-CS\n");
+		return -EINTR;
+	}
+
+	/* update output args */
+	memset(args, 0, sizeof(*args));
+
 	if (mcs_data.completion_bitmap) {
 		args->out.status = HL_WAIT_CS_STATUS_COMPLETED;
 		args->out.cs_completion_map = mcs_data.completion_bitmap;
@@ -2667,8 +2674,6 @@ free_seq_arr:
 		/* update if some CS was gone */
 		if (mcs_data.timestamp)
 			args->out.flags |= HL_WAIT_CS_STATUS_FLAG_GONE;
-	} else if (mcs_data.wait_status == -ERESTARTSYS) {
-		args->out.status = HL_WAIT_CS_STATUS_INTERRUPTED;
 	} else {
 		args->out.status = HL_WAIT_CS_STATUS_BUSY;
 	}
@@ -2688,16 +2693,17 @@ static int hl_cs_wait_ioctl(struct hl_fpriv *hpriv, void *data)
 	rc = _hl_cs_wait_ioctl(hdev, hpriv->ctx, args->in.timeout_us, seq,
 				&status, &timestamp);
 
-	memset(args, 0, sizeof(*args));
-
-	if (rc) {
 	if (rc == -ERESTARTSYS) {
 		dev_err_ratelimited(hdev->dev,
 			"user process got signal while waiting for CS handle %llu\n",
 			seq);
-			args->out.status = HL_WAIT_CS_STATUS_INTERRUPTED;
+		return -EINTR;
-			rc = -EINTR;
+	}
-		} else if (rc == -ETIMEDOUT) {
+
+	memset(args, 0, sizeof(*args));
+
+	if (rc) {
+		if (rc == -ETIMEDOUT) {
 			dev_err_ratelimited(hdev->dev,
 				"CS %llu has timed-out while user process is waiting for it\n",
 				seq);
@@ -2823,7 +2829,6 @@ wait_again:
 		dev_err_ratelimited(hdev->dev,
 			"user process got signal while waiting for interrupt ID %d\n",
 			interrupt->interrupt_id);
-		*status = HL_WAIT_CS_STATUS_INTERRUPTED;
 		rc = -EINTR;
 	} else {
 		*status = CS_WAIT_STATUS_BUSY;
@@ -2878,8 +2883,6 @@ static int hl_interrupt_wait_ioctl(struct hl_fpriv *hpriv, void *data)
 				args->in.interrupt_timeout_us, args->in.addr,
 				args->in.target, interrupt_offset, &status);
 
-	memset(args, 0, sizeof(*args));
-
 	if (rc) {
 		if (rc != -EINTR)
 			dev_err_ratelimited(hdev->dev,
@@ -2888,6 +2891,8 @@ static int hl_interrupt_wait_ioctl(struct hl_fpriv *hpriv, void *data)
 		return rc;
 	}
 
+	memset(args, 0, sizeof(*args));
+
 	switch (status) {
 	case CS_WAIT_STATUS_COMPLETED:
 		args->out.status = HL_WAIT_CS_STATUS_COMPLETED;

drivers/misc/mei/hbm.c

@@ -1298,7 +1298,8 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
 
 		if (dev->dev_state != MEI_DEV_INIT_CLIENTS ||
 		    dev->hbm_state != MEI_HBM_STARTING) {
-			if (dev->dev_state == MEI_DEV_POWER_DOWN) {
+			if (dev->dev_state == MEI_DEV_POWER_DOWN ||
+			    dev->dev_state == MEI_DEV_POWERING_DOWN) {
 				dev_dbg(dev->dev, "hbm: start: on shutdown, ignoring\n");
 				return 0;
 			}
@@ -1381,7 +1382,8 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
 
 		if (dev->dev_state != MEI_DEV_INIT_CLIENTS ||
 		    dev->hbm_state != MEI_HBM_DR_SETUP) {
-			if (dev->dev_state == MEI_DEV_POWER_DOWN) {
+			if (dev->dev_state == MEI_DEV_POWER_DOWN ||
+			    dev->dev_state == MEI_DEV_POWERING_DOWN) {
 				dev_dbg(dev->dev, "hbm: dma setup response: on shutdown, ignoring\n");
 				return 0;
 			}
@@ -1448,7 +1450,8 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
 
 		if (dev->dev_state != MEI_DEV_INIT_CLIENTS ||
 		    dev->hbm_state != MEI_HBM_CLIENT_PROPERTIES) {
-			if (dev->dev_state == MEI_DEV_POWER_DOWN) {
+			if (dev->dev_state == MEI_DEV_POWER_DOWN ||
+			    dev->dev_state == MEI_DEV_POWERING_DOWN) {
 				dev_dbg(dev->dev, "hbm: properties response: on shutdown, ignoring\n");
 				return 0;
 			}
@@ -1490,7 +1493,8 @@ int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
 
 		if (dev->dev_state != MEI_DEV_INIT_CLIENTS ||
 		    dev->hbm_state != MEI_HBM_ENUM_CLIENTS) {
-			if (dev->dev_state == MEI_DEV_POWER_DOWN) {
+			if (dev->dev_state == MEI_DEV_POWER_DOWN ||
+			    dev->dev_state == MEI_DEV_POWERING_DOWN) {
 				dev_dbg(dev->dev, "hbm: enumeration response: on shutdown, ignoring\n");
 				return 0;
 			}

drivers/misc/mei/hw-me-regs.h

@@ -92,6 +92,7 @@
 #define MEI_DEV_ID_CDF        0x18D3  /* Cedar Fork */
 
 #define MEI_DEV_ID_ICP_LP     0x34E0  /* Ice Lake Point LP */
+#define MEI_DEV_ID_ICP_N      0x38E0  /* Ice Lake Point N */
 
 #define MEI_DEV_ID_JSP_N      0x4DE0  /* Jasper Lake Point N */
 

drivers/misc/mei/pci-me.c

@@ -96,6 +96,7 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
 	{MEI_PCI_DEVICE(MEI_DEV_ID_CMP_H_3, MEI_ME_PCH8_ITOUCH_CFG)},
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_ICP_LP, MEI_ME_PCH12_CFG)},
+	{MEI_PCI_DEVICE(MEI_DEV_ID_ICP_N, MEI_ME_PCH12_CFG)},
 
 	{MEI_PCI_DEVICE(MEI_DEV_ID_TGP_LP, MEI_ME_PCH15_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_TGP_H, MEI_ME_PCH15_SPS_CFG)},

drivers/nvme/host/core.c

@@ -3550,10 +3550,15 @@ static int __nvme_check_ids(struct nvme_subsystem *subsys,
 	return 0;
 }
 
+static void nvme_cdev_rel(struct device *dev)
+{
+	ida_simple_remove(&nvme_ns_chr_minor_ida, MINOR(dev->devt));
+}
+
 void nvme_cdev_del(struct cdev *cdev, struct device *cdev_device)
 {
 	cdev_device_del(cdev, cdev_device);
-	ida_simple_remove(&nvme_ns_chr_minor_ida, MINOR(cdev_device->devt));
+	put_device(cdev_device);
 }
 
 int nvme_cdev_add(struct cdev *cdev, struct device *cdev_device,
@@ -3566,14 +3571,14 @@ int nvme_cdev_add(struct cdev *cdev, struct device *cdev_device,
 		return minor;
 	cdev_device->devt = MKDEV(MAJOR(nvme_ns_chr_devt), minor);
 	cdev_device->class = nvme_ns_chr_class;
+	cdev_device->release = nvme_cdev_rel;
 	device_initialize(cdev_device);
 	cdev_init(cdev, fops);
 	cdev->owner = owner;
 	ret = cdev_device_add(cdev, cdev_device);
-	if (ret) {
+	if (ret)
 		put_device(cdev_device);
-		ida_simple_remove(&nvme_ns_chr_minor_ida, minor);
+
-	}
 	return ret;
 }
 
@@ -3605,11 +3610,9 @@ static int nvme_add_ns_cdev(struct nvme_ns *ns)
 			   ns->ctrl->instance, ns->head->instance);
 	if (ret)
 		return ret;
-	ret = nvme_cdev_add(&ns->cdev, &ns->cdev_device, &nvme_ns_chr_fops,
+
+	return nvme_cdev_add(&ns->cdev, &ns->cdev_device, &nvme_ns_chr_fops,
 			     ns->ctrl->ops->module);
-	if (ret)
-		kfree_const(ns->cdev_device.kobj.name);
-	return ret;
 }
 
 static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,

drivers/nvme/host/multipath.c

@@ -431,8 +431,6 @@ static int nvme_add_ns_head_cdev(struct nvme_ns_head *head)
 		return ret;
 	ret = nvme_cdev_add(&head->cdev, &head->cdev_device,
 			    &nvme_ns_head_chr_fops, THIS_MODULE);
-	if (ret)
-		kfree_const(head->cdev_device.kobj.name);
 	return ret;
 }
 

drivers/nvme/host/pci.c

@@ -1330,7 +1330,7 @@ static enum blk_eh_timer_return nvme_timeout(struct request *req, bool reserved)
 	iod->aborted = 1;
 
 	cmd.abort.opcode = nvme_admin_abort_cmd;
-	cmd.abort.cid = req->tag;
+	cmd.abort.cid = nvme_cid(req);
 	cmd.abort.sqid = cpu_to_le16(nvmeq->qid);
 
 	dev_warn(nvmeq->dev->ctrl.device,

drivers/nvmem/core.c

@@ -1383,6 +1383,7 @@ static void nvmem_shift_read_buffer_in_place(struct nvmem_cell *cell, void *buf)
 		*p-- = 0;
 
 	/* clear msb bits if any leftover in the last byte */
+	if (cell->nbits % BITS_PER_BYTE)
 		*p &= GENMASK((cell->nbits % BITS_PER_BYTE) - 1, 0);
 }
 

drivers/soc/canaan/Kconfig

@@ -5,7 +5,6 @@ config SOC_K210_SYSCTL
 	depends on RISCV && SOC_CANAAN && OF
 	default SOC_CANAAN
         select PM
-        select SIMPLE_PM_BUS
         select SYSCON
         select MFD_SYSCON
 	help

drivers/staging/r8188eu/hal/hal_intf.c

@@ -248,7 +248,7 @@ void rtw_hal_update_ra_mask(struct adapter *adapt, u32 mac_id, u8 rssi_level)
 #ifdef CONFIG_88EU_AP_MODE
 		struct sta_info *psta = NULL;
 		struct sta_priv *pstapriv = &adapt->stapriv;
-		if ((mac_id - 1) > 0)
+		if (mac_id >= 2)
 			psta = pstapriv->sta_aid[(mac_id - 1) - 1];
 		if (psta)
 			add_RATid(adapt, psta, 0);/* todo: based on rssi_level*/

drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c

@@ -182,7 +182,7 @@ create_pagelist(char *buf, char __user *ubuf,
 		offset = (uintptr_t)ubuf & (PAGE_SIZE - 1);
 	num_pages = DIV_ROUND_UP(count + offset, PAGE_SIZE);
 
-	if (num_pages > (SIZE_MAX - sizeof(struct pagelist) -
+	if ((size_t)num_pages > (SIZE_MAX - sizeof(struct pagelist) -
 			 sizeof(struct vchiq_pagelist_info)) /
 			(sizeof(u32) + sizeof(pages[0]) +
 			 sizeof(struct scatterlist)))

drivers/tty/serial/8250/Kconfig

@@ -361,9 +361,13 @@ config SERIAL_8250_BCM2835AUX
 	  If unsure, say N.
 
 config SERIAL_8250_FSL
-	bool
+	bool "Freescale 16550 UART support" if COMPILE_TEST && !(PPC || ARM || ARM64)
 	depends on SERIAL_8250_CONSOLE
-	default PPC || ARM || ARM64 || COMPILE_TEST
+	default PPC || ARM || ARM64
+	help
+	  Selecting this option enables a workaround for a break-detection
+	  erratum for Freescale 16550 UARTs in the 8250 driver. It also
+	  enables support for ACPI enumeration.
 
 config SERIAL_8250_DW
 	tristate "Support for Synopsys DesignWare 8250 quirks"

drivers/usb/host/xhci-dbgtty.c

@@ -408,40 +408,38 @@ static int xhci_dbc_tty_register_device(struct xhci_dbc *dbc)
 		return -EBUSY;
 
 	xhci_dbc_tty_init_port(dbc, port);
-	tty_dev = tty_port_register_device(&port->port,
-					   dbc_tty_driver, 0, NULL);
-	if (IS_ERR(tty_dev)) {
-		ret = PTR_ERR(tty_dev);
-		goto register_fail;
-	}
 
 	ret = kfifo_alloc(&port->write_fifo, DBC_WRITE_BUF_SIZE, GFP_KERNEL);
 	if (ret)
-		goto buf_alloc_fail;
+		goto err_exit_port;
 
 	ret = xhci_dbc_alloc_requests(dbc, BULK_IN, &port->read_pool,
 				      dbc_read_complete);
 	if (ret)
-		goto request_fail;
+		goto err_free_fifo;
 
 	ret = xhci_dbc_alloc_requests(dbc, BULK_OUT, &port->write_pool,
 				      dbc_write_complete);
 	if (ret)
-		goto request_fail;
+		goto err_free_requests;
+
+	tty_dev = tty_port_register_device(&port->port,
+					   dbc_tty_driver, 0, NULL);
+	if (IS_ERR(tty_dev)) {
+		ret = PTR_ERR(tty_dev);
+		goto err_free_requests;
+	}
 
 	port->registered = true;
 
 	return 0;
 
-request_fail:
+err_free_requests:
 	xhci_dbc_free_requests(&port->read_pool);
 	xhci_dbc_free_requests(&port->write_pool);
+err_free_fifo:
 	kfifo_free(&port->write_fifo);
-
+err_exit_port:
-buf_alloc_fail:
-	tty_unregister_device(dbc_tty_driver, 0);
-
-register_fail:
 	xhci_dbc_tty_exit_port(port);
 
 	dev_err(dbc->dev, "can't register tty port, err %d\n", ret);

drivers/usb/host/xhci-pci.c

@@ -30,6 +30,7 @@
 #define PCI_VENDOR_ID_FRESCO_LOGIC	0x1b73
 #define PCI_DEVICE_ID_FRESCO_LOGIC_PDK	0x1000
 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1009	0x1009
+#define PCI_DEVICE_ID_FRESCO_LOGIC_FL1100	0x1100
 #define PCI_DEVICE_ID_FRESCO_LOGIC_FL1400	0x1400
 
 #define PCI_VENDOR_ID_ETRON		0x1b6f
@@ -113,6 +114,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	/* Look for vendor-specific quirks */
 	if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
 			(pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK ||
+			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100 ||
 			 pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1400)) {
 		if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK &&
 				pdev->revision == 0x0) {
@@ -279,8 +281,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 			pdev->device == 0x3432)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 
-	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483)
+	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
 		xhci->quirks |= XHCI_LPM_SUPPORT;
+		xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
+	}
 
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI)

drivers/usb/host/xhci-ring.c

@@ -366,16 +366,22 @@ static void xhci_handle_stopped_cmd_ring(struct xhci_hcd *xhci,
 /* Must be called with xhci->lock held, releases and aquires lock back */
 static int xhci_abort_cmd_ring(struct xhci_hcd *xhci, unsigned long flags)
 {
-	u64 temp_64;
+	u32 temp_32;
 	int ret;
 
 	xhci_dbg(xhci, "Abort command ring\n");
 
 	reinit_completion(&xhci->cmd_ring_stop_completion);
 
-	temp_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
+	/*
-	xhci_write_64(xhci, temp_64 | CMD_RING_ABORT,
+	 * The control bits like command stop, abort are located in lower
-			&xhci->op_regs->cmd_ring);
+	 * dword of the command ring control register. Limit the write
+	 * to the lower dword to avoid corrupting the command ring pointer
+	 * in case if the command ring is stopped by the time upper dword
+	 * is written.
+	 */
+	temp_32 = readl(&xhci->op_regs->cmd_ring);
+	writel(temp_32 | CMD_RING_ABORT, &xhci->op_regs->cmd_ring);
 
 	/* Section 4.6.1.2 of xHCI 1.0 spec says software should also time the
 	 * completion of the Command Abort operation. If CRR is not negated in 5
@@ -559,8 +565,11 @@ static int xhci_move_dequeue_past_td(struct xhci_hcd *xhci,
 	struct xhci_ring *ep_ring;
 	struct xhci_command *cmd;
 	struct xhci_segment *new_seg;
+	struct xhci_segment *halted_seg = NULL;
 	union xhci_trb *new_deq;
 	int new_cycle;
+	union xhci_trb *halted_trb;
+	int index = 0;
 	dma_addr_t addr;
 	u64 hw_dequeue;
 	bool cycle_found = false;
@@ -598,7 +607,27 @@ static int xhci_move_dequeue_past_td(struct xhci_hcd *xhci,
 	hw_dequeue = xhci_get_hw_deq(xhci, dev, ep_index, stream_id);
 	new_seg = ep_ring->deq_seg;
 	new_deq = ep_ring->dequeue;
+
+	/*
+	 * Quirk: xHC write-back of the DCS field in the hardware dequeue
+	 * pointer is wrong - use the cycle state of the TRB pointed to by
+	 * the dequeue pointer.
+	 */
+	if (xhci->quirks & XHCI_EP_CTX_BROKEN_DCS &&
+	    !(ep->ep_state & EP_HAS_STREAMS))
+		halted_seg = trb_in_td(xhci, td->start_seg,
+				       td->first_trb, td->last_trb,
+				       hw_dequeue & ~0xf, false);
+	if (halted_seg) {
+		index = ((dma_addr_t)(hw_dequeue & ~0xf) - halted_seg->dma) /
+			 sizeof(*halted_trb);
+		halted_trb = &halted_seg->trbs[index];
+		new_cycle = halted_trb->generic.field[3] & 0x1;
+		xhci_dbg(xhci, "Endpoint DCS = %d TRB index = %d cycle = %d\n",
+			 (u8)(hw_dequeue & 0x1), index, new_cycle);
+	} else {
 		new_cycle = hw_dequeue & 0x1;
+	}
 
 	/*
 	 * We want to find the pointer, segment and cycle state of the new trb

drivers/usb/host/xhci.c

@@ -3214,10 +3214,13 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd,
 		return;
 
 	/* Bail out if toggle is already being cleared by a endpoint reset */
+	spin_lock_irqsave(&xhci->lock, flags);
 	if (ep->ep_state & EP_HARD_CLEAR_TOGGLE) {
 		ep->ep_state &= ~EP_HARD_CLEAR_TOGGLE;
+		spin_unlock_irqrestore(&xhci->lock, flags);
 		return;
 	}
+	spin_unlock_irqrestore(&xhci->lock, flags);
 	/* Only interrupt and bulk ep's use data toggle, USB2 spec 5.5.4-> */
 	if (usb_endpoint_xfer_control(&host_ep->desc) ||
 	    usb_endpoint_xfer_isoc(&host_ep->desc))
@@ -3303,8 +3306,10 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd,
 	xhci_free_command(xhci, cfg_cmd);
 cleanup:
 	xhci_free_command(xhci, stop_cmd);
+	spin_lock_irqsave(&xhci->lock, flags);
 	if (ep->ep_state & EP_SOFT_CLEAR_TOGGLE)
 		ep->ep_state &= ~EP_SOFT_CLEAR_TOGGLE;
+	spin_unlock_irqrestore(&xhci->lock, flags);
 }
 
 static int xhci_check_streams_endpoint(struct xhci_hcd *xhci,

drivers/usb/host/xhci.h

@@ -1899,6 +1899,7 @@ struct xhci_hcd {
 #define XHCI_SG_TRB_CACHE_SIZE_QUIRK	BIT_ULL(39)
 #define XHCI_NO_SOFT_RETRY	BIT_ULL(40)
 #define XHCI_BROKEN_D3COLD	BIT_ULL(41)
+#define XHCI_EP_CTX_BROKEN_DCS	BIT_ULL(42)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;

drivers/usb/musb/musb_dsps.c

@@ -899,11 +899,13 @@ static int dsps_probe(struct platform_device *pdev)
 	if (usb_get_dr_mode(&pdev->dev) == USB_DR_MODE_PERIPHERAL) {
 		ret = dsps_setup_optional_vbus_irq(pdev, glue);
 		if (ret)
-			goto err;
+			goto unregister_pdev;
 	}
 
 	return 0;
 
+unregister_pdev:
+	platform_device_unregister(glue->musb);
 err:
 	pm_runtime_disable(&pdev->dev);
 	iounmap(glue->usbss_base);

drivers/usb/serial/option.c

@@ -246,11 +246,13 @@ static void option_instat_callback(struct urb *urb);
 /* These Quectel products use Quectel's vendor ID */
 #define QUECTEL_PRODUCT_EC21			0x0121
 #define QUECTEL_PRODUCT_EC25			0x0125
+#define QUECTEL_PRODUCT_EG91			0x0191
 #define QUECTEL_PRODUCT_EG95			0x0195
 #define QUECTEL_PRODUCT_BG96			0x0296
 #define QUECTEL_PRODUCT_EP06			0x0306
 #define QUECTEL_PRODUCT_EM12			0x0512
 #define QUECTEL_PRODUCT_RM500Q			0x0800
+#define QUECTEL_PRODUCT_EC200S_CN		0x6002
 #define QUECTEL_PRODUCT_EC200T			0x6026
 
 #define CMOTECH_VENDOR_ID			0x16d8
@@ -1111,6 +1113,9 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0xff, 0xff),
 	  .driver_info = NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC25, 0xff, 0, 0) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG91, 0xff, 0xff, 0xff),
+	  .driver_info = NUMEP2 },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG91, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0xff, 0xff),
 	  .driver_info = NUMEP2 },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG95, 0xff, 0, 0) },
@@ -1128,6 +1133,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500Q, 0xff, 0xff, 0x10),
 	  .driver_info = ZLP },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
 
 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
@@ -1227,6 +1233,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1203, 0xff),	/* Telit LE910Cx (RNDIS) */
 	  .driver_info = NCTRL(2) | RSVD(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1204, 0xff),	/* Telit LE910Cx (MBIM) */
+	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(2) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE920),

drivers/usb/serial/qcserial.c

@@ -165,6 +165,7 @@ static const struct usb_device_id id_table[] = {
 	{DEVICE_SWI(0x1199, 0x907b)},	/* Sierra Wireless EM74xx */
 	{DEVICE_SWI(0x1199, 0x9090)},	/* Sierra Wireless EM7565 QDL */
 	{DEVICE_SWI(0x1199, 0x9091)},	/* Sierra Wireless EM7565 */
+	{DEVICE_SWI(0x1199, 0x90d2)},	/* Sierra Wireless EM9191 QDL */
 	{DEVICE_SWI(0x413c, 0x81a2)},	/* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a3)},	/* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */
 	{DEVICE_SWI(0x413c, 0x81a4)},	/* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */

drivers/vhost/vdpa.c

@@ -173,6 +173,10 @@ static long vhost_vdpa_set_status(struct vhost_vdpa *v, u8 __user *statusp)
 	if (status != 0 && (ops->get_status(vdpa) & ~status) != 0)
 		return -EINVAL;
 
+	if ((status_old & VIRTIO_CONFIG_S_DRIVER_OK) && !(status & VIRTIO_CONFIG_S_DRIVER_OK))
+		for (i = 0; i < nvqs; i++)
+			vhost_vdpa_unsetup_vq_irq(v, i);
+
 	if (status == 0) {
 		ret = ops->reset(vdpa);
 		if (ret)
@@ -184,10 +188,6 @@ static long vhost_vdpa_set_status(struct vhost_vdpa *v, u8 __user *statusp)
 		for (i = 0; i < nvqs; i++)
 			vhost_vdpa_setup_vq_irq(v, i);
 
-	if ((status_old & VIRTIO_CONFIG_S_DRIVER_OK) && !(status & VIRTIO_CONFIG_S_DRIVER_OK))
-		for (i = 0; i < nvqs; i++)
-			vhost_vdpa_unsetup_vq_irq(v, i);
-
 	return 0;
 }
 
@@ -322,7 +322,7 @@ static long vhost_vdpa_set_config_call(struct vhost_vdpa *v, u32 __user *argp)
 	struct eventfd_ctx *ctx;
 
 	cb.callback = vhost_vdpa_config_cb;
-	cb.private = v->vdpa;
+	cb.private = v;
 	if (copy_from_user(&fd, argp, sizeof(fd)))
 		return  -EFAULT;
 

drivers/virtio/virtio.c

@@ -239,6 +239,17 @@ static int virtio_dev_probe(struct device *_d)
 		driver_features_legacy = driver_features;
 	}
 
+	/*
+	 * Some devices detect legacy solely via F_VERSION_1. Write
+	 * F_VERSION_1 to force LE config space accesses before FEATURES_OK for
+	 * these when needed.
+	 */
+	if (drv->validate && !virtio_legacy_is_little_endian()
+			  && device_features & BIT_ULL(VIRTIO_F_VERSION_1)) {
+		dev->features = BIT_ULL(VIRTIO_F_VERSION_1);
+		dev->config->finalize_features(dev);
+	}
+
 	if (device_features & (1ULL << VIRTIO_F_VERSION_1))
 		dev->features = driver_features & device_features;
 	else

fs/io_uring.c

@@ -2949,7 +2949,7 @@ static void kiocb_done(struct kiocb *kiocb, ssize_t ret,
 			struct io_ring_ctx *ctx = req->ctx;
 
 			req_set_fail(req);
-			if (issue_flags & IO_URING_F_NONBLOCK) {
+			if (!(issue_flags & IO_URING_F_NONBLOCK)) {
 				mutex_lock(&ctx->uring_lock);
 				__io_req_complete(req, issue_flags, ret, cflags);
 				mutex_unlock(&ctx->uring_lock);

fs/kernfs/dir.c

@@ -1111,7 +1111,14 @@ static struct dentry *kernfs_iop_lookup(struct inode *dir,
 
 	kn = kernfs_find_ns(parent, dentry->d_name.name, ns);
 	/* attach dentry and inode */
-	if (kn && kernfs_active(kn)) {
+	if (kn) {
+		/* Inactive nodes are invisible to the VFS so don't
+		 * create a negative.
+		 */
+		if (!kernfs_active(kn)) {
+			up_read(&kernfs_rwsem);
+			return NULL;
+		}
 		inode = kernfs_get_inode(dir->i_sb, kn);
 		if (!inode)
 			inode = ERR_PTR(-ENOMEM);

include/linux/genhd.h

@@ -149,6 +149,7 @@ struct gendisk {
 	unsigned long state;
 #define GD_NEED_PART_SCAN		0
 #define GD_READ_ONLY			1
+#define GD_DEAD				2
 
 	struct mutex open_mutex;	/* open/close mutex */
 	unsigned open_partitions;	/* number of open partitions */

include/trace/events/kyber.h

@@ -13,11 +13,11 @@
 
 TRACE_EVENT(kyber_latency,
 
-	TP_PROTO(struct request_queue *q, const char *domain, const char *type,
+	TP_PROTO(dev_t dev, const char *domain, const char *type,
 		 unsigned int percentile, unsigned int numerator,
 		 unsigned int denominator, unsigned int samples),
 
-	TP_ARGS(q, domain, type, percentile, numerator, denominator, samples),
+	TP_ARGS(dev, domain, type, percentile, numerator, denominator, samples),
 
 	TP_STRUCT__entry(
 		__field(	dev_t,	dev				)
@@ -30,7 +30,7 @@ TRACE_EVENT(kyber_latency,
 	),
 
 	TP_fast_assign(
-		__entry->dev		= disk_devt(q->disk);
+		__entry->dev		= dev;
 		strlcpy(__entry->domain, domain, sizeof(__entry->domain));
 		strlcpy(__entry->type, type, sizeof(__entry->type));
 		__entry->percentile	= percentile;
@@ -47,10 +47,9 @@ TRACE_EVENT(kyber_latency,
 
 TRACE_EVENT(kyber_adjust,
 
-	TP_PROTO(struct request_queue *q, const char *domain,
+	TP_PROTO(dev_t dev, const char *domain, unsigned int depth),
-		 unsigned int depth),
 
-	TP_ARGS(q, domain, depth),
+	TP_ARGS(dev, domain, depth),
 
 	TP_STRUCT__entry(
 		__field(	dev_t,	dev			)
@@ -59,7 +58,7 @@ TRACE_EVENT(kyber_adjust,
 	),
 
 	TP_fast_assign(
-		__entry->dev		= disk_devt(q->disk);
+		__entry->dev		= dev;
 		strlcpy(__entry->domain, domain, sizeof(__entry->domain));
 		__entry->depth		= depth;
 	),
@@ -71,9 +70,9 @@ TRACE_EVENT(kyber_adjust,
 
 TRACE_EVENT(kyber_throttled,
 
-	TP_PROTO(struct request_queue *q, const char *domain),
+	TP_PROTO(dev_t dev, const char *domain),
 
-	TP_ARGS(q, domain),
+	TP_ARGS(dev, domain),
 
 	TP_STRUCT__entry(
 		__field(	dev_t,	dev			)
@@ -81,7 +80,7 @@ TRACE_EVENT(kyber_throttled,
 	),
 
 	TP_fast_assign(
-		__entry->dev		= disk_devt(q->disk);
+		__entry->dev		= dev;
 		strlcpy(__entry->domain, domain, sizeof(__entry->domain));
 	),
 

include/uapi/misc/habanalabs.h

@@ -917,7 +917,6 @@ struct hl_wait_cs_in {
 #define HL_WAIT_CS_STATUS_BUSY		1
 #define HL_WAIT_CS_STATUS_TIMEDOUT	2
 #define HL_WAIT_CS_STATUS_ABORTED	3
-#define HL_WAIT_CS_STATUS_INTERRUPTED	4
 
 #define HL_WAIT_CS_STATUS_FLAG_GONE		0x1
 #define HL_WAIT_CS_STATUS_FLAG_TIMESTAMP_VLD	0x2
@@ -1286,7 +1285,8 @@ struct hl_debug_args {
  * EIO       - The CS was aborted (usually because the device was reset)
  * ENODEV    - The device wants to do hard-reset (so user need to close FD)
  *
- * The driver also returns a custom define inside the IOCTL which can be:
+ * The driver also returns a custom define in case the IOCTL call returned 0.
+ * The define can be one of the following:
  *
  * HL_WAIT_CS_STATUS_COMPLETED   - The CS has been completed successfully (0)
  * HL_WAIT_CS_STATUS_BUSY        - The CS is still executing (0)
@@ -1294,8 +1294,6 @@ struct hl_debug_args {
  *                                 (ETIMEDOUT)
  * HL_WAIT_CS_STATUS_ABORTED     - The CS was aborted, usually because the
  *                                 device was reset (EIO)
- * HL_WAIT_CS_STATUS_INTERRUPTED - Waiting for the CS was interrupted (EINTR)
- *
  */
 
 #define HL_IOCTL_WAIT_CS			\

init/main.c

@@ -382,6 +382,7 @@ static char * __init xbc_make_cmdline(const char *key)
 	ret = xbc_snprint_cmdline(new_cmdline, len + 1, root);
 	if (ret < 0 || ret > len) {
 		pr_err("Failed to print extra kernel cmdline.\n");
+		memblock_free_ptr(new_cmdline, len + 1);
 		return NULL;
 	}
 

kernel/trace/trace.c

@@ -1745,16 +1745,15 @@ void latency_fsnotify(struct trace_array *tr)
 	irq_work_queue(&tr->fsnotify_irqwork);
 }
 
-/*
+#elif defined(CONFIG_TRACER_MAX_TRACE) || defined(CONFIG_HWLAT_TRACER)	\
- * (defined(CONFIG_TRACER_MAX_TRACE) || defined(CONFIG_HWLAT_TRACER)) && \
+	|| defined(CONFIG_OSNOISE_TRACER)
- *  defined(CONFIG_FSNOTIFY)
- */
-#else
 
 #define trace_create_maxlat_file(tr, d_tracer)				\
 	trace_create_file("tracing_max_latency", 0644, d_tracer,	\
 			  &tr->max_latency, &tracing_max_lat_fops)
 
+#else
+#define trace_create_maxlat_file(tr, d_tracer)	 do { } while (0)
 #endif
 
 #ifdef CONFIG_TRACER_MAX_TRACE
@@ -9474,9 +9473,7 @@ init_tracer_tracefs(struct trace_array *tr, struct dentry *d_tracer)
 
 	create_trace_options_dir(tr);
 
-#if defined(CONFIG_TRACER_MAX_TRACE) || defined(CONFIG_HWLAT_TRACER)
 	trace_create_maxlat_file(tr, d_tracer);
-#endif
 
 	if (ftrace_create_function_files(tr, d_tracer))
 		MEM_FAIL(1, "Could not allocate function filter files");

kernel/trace/trace_eprobe.c

@@ -119,10 +119,58 @@ static bool eprobe_dyn_event_match(const char *system, const char *event,
 			int argc, const char **argv, struct dyn_event *ev)
 {
 	struct trace_eprobe *ep = to_trace_eprobe(ev);
+	const char *slash;
 
-	return strcmp(trace_probe_name(&ep->tp), event) == 0 &&
+	/*
-	    (!system || strcmp(trace_probe_group_name(&ep->tp), system) == 0) &&
+	 * We match the following:
-	    trace_probe_match_command_args(&ep->tp, argc, argv);
+	 *  event only			- match all eprobes with event name
+	 *  system and event only	- match all system/event probes
+	 *
+	 * The below has the above satisfied with more arguments:
+	 *
+	 *  attached system/event	- If the arg has the system and event
+	 *				  the probe is attached to, match
+	 *				  probes with the attachment.
+	 *
+	 *  If any more args are given, then it requires a full match.
+	 */
+
+	/*
+	 * If system exists, but this probe is not part of that system
+	 * do not match.
+	 */
+	if (system && strcmp(trace_probe_group_name(&ep->tp), system) != 0)
+		return false;
+
+	/* Must match the event name */
+	if (strcmp(trace_probe_name(&ep->tp), event) != 0)
+		return false;
+
+	/* No arguments match all */
+	if (argc < 1)
+		return true;
+
+	/* First argument is the system/event the probe is attached to */
+
+	slash = strchr(argv[0], '/');
+	if (!slash)
+		slash = strchr(argv[0], '.');
+	if (!slash)
+		return false;
+
+	if (strncmp(ep->event_system, argv[0], slash - argv[0]))
+		return false;
+	if (strcmp(ep->event_name, slash + 1))
+		return false;
+
+	argc--;
+	argv++;
+
+	/* If there are no other args, then match */
+	if (argc < 1)
+		return true;
+
+	return trace_probe_match_command_args(&ep->tp, argc, argv);
 }
 
 static struct dyn_event_operations eprobe_dyn_event_ops = {
@@ -632,6 +680,13 @@ static int disable_eprobe(struct trace_eprobe *ep,
 
 	trace_event_trigger_enable_disable(file, 0);
 	update_cond_flag(file);
+
+	/* Make sure nothing is using the edata or trigger */
+	tracepoint_synchronize_unregister();
+
+	kfree(edata);
+	kfree(trigger);
+
 	return 0;
 }
 

kernel/trace/trace_events_hist.c

@@ -2506,7 +2506,7 @@ find_synthetic_field_var(struct hist_trigger_data *target_hist_data,
  * events.  However, for convenience, users are allowed to directly
  * specify an event field in an action, which will be automatically
  * converted into a variable on their behalf.
-
+ *
  * If a user specifies a field on an event that isn't the event the
  * histogram currently being defined (the target event histogram), the
  * only way that can be accomplished is if a new hist trigger is

mm/memblock.c

@@ -936,7 +936,12 @@ int __init_memblock memblock_mark_mirror(phys_addr_t base, phys_addr_t size)
  */
 int __init_memblock memblock_mark_nomap(phys_addr_t base, phys_addr_t size)
 {
-	return memblock_setclr_flag(base, size, 1, MEMBLOCK_NOMAP);
+	int ret = memblock_setclr_flag(base, size, 1, MEMBLOCK_NOMAP);
+
+	if (!ret)
+		kmemleak_free_part_phys(base, size);
+
+	return ret;
 }
 
 /**

scripts/recordmcount.pl

@@ -189,7 +189,7 @@ if ($arch =~ /(x86(_64)?)|(i386)/) {
 $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
 $weak_regex = "^[0-9a-fA-F]+\\s+([wW])\\s+(\\S+)";
 $section_regex = "Disassembly of section\\s+(\\S+):";
-$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
+$function_regex = "^([0-9a-fA-F]+)\\s+<([^^]*?)>:";
 $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s(mcount|__fentry__)\$";
 $section_type = '@progbits';
 $mcount_adjust = 0;

tools/lib/perf/tests/test-evlist.c

@@ -40,7 +40,7 @@ static int test_stat_cpu(void)
 		.type	= PERF_TYPE_SOFTWARE,
 		.config	= PERF_COUNT_SW_TASK_CLOCK,
 	};
-	int err, cpu, tmp;
+	int err, idx;
 
 	cpus = perf_cpu_map__new(NULL);
 	__T("failed to create cpus", cpus);
@@ -70,10 +70,10 @@ static int test_stat_cpu(void)
 	perf_evlist__for_each_evsel(evlist, evsel) {
 		cpus = perf_evsel__cpus(evsel);
 
-		perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
+		for (idx = 0; idx < perf_cpu_map__nr(cpus); idx++) {
 			struct perf_counts_values counts = { .val = 0 };
 
-			perf_evsel__read(evsel, cpu, 0, &counts);
+			perf_evsel__read(evsel, idx, 0, &counts);
 			__T("failed to read value for evsel", counts.val != 0);
 		}
 	}

tools/lib/perf/tests/test-evsel.c

@@ -22,7 +22,7 @@ static int test_stat_cpu(void)
 		.type	= PERF_TYPE_SOFTWARE,
 		.config	= PERF_COUNT_SW_CPU_CLOCK,
 	};
-	int err, cpu, tmp;
+	int err, idx;
 
 	cpus = perf_cpu_map__new(NULL);
 	__T("failed to create cpus", cpus);
@@ -33,10 +33,10 @@ static int test_stat_cpu(void)
 	err = perf_evsel__open(evsel, cpus, NULL);
 	__T("failed to open evsel", err == 0);
 
-	perf_cpu_map__for_each_cpu(cpu, tmp, cpus) {
+	for (idx = 0; idx < perf_cpu_map__nr(cpus); idx++) {
 		struct perf_counts_values counts = { .val = 0 };
 
-		perf_evsel__read(evsel, cpu, 0, &counts);
+		perf_evsel__read(evsel, idx, 0, &counts);
 		__T("failed to read value for evsel", counts.val != 0);
 	}
 
@@ -148,6 +148,7 @@ static int test_stat_user_read(int event)
 	__T("failed to mmap evsel", err == 0);
 
 	pc = perf_evsel__mmap_base(evsel, 0, 0);
+	__T("failed to get mmapped address", pc);
 
 #if defined(__i386__) || defined(__x86_64__)
 	__T("userspace counter access not supported", pc->cap_user_rdpmc);

tools/objtool/elf.c

@@ -508,6 +508,7 @@ int elf_add_reloc(struct elf *elf, struct section *sec, unsigned long offset,
 	list_add_tail(&reloc->list, &sec->reloc->reloc_list);
 	elf_hash_add(reloc, &reloc->hash, reloc_hash(reloc));
 
+	sec->reloc->sh.sh_size += sec->reloc->sh.sh_entsize;
 	sec->reloc->changed = true;
 
 	return 0;
@@ -977,63 +978,63 @@ static struct section *elf_create_reloc_section(struct elf *elf,
 	}
 }
 
-static int elf_rebuild_rel_reloc_section(struct section *sec, int nr)
+static int elf_rebuild_rel_reloc_section(struct section *sec)
 {
 	struct reloc *reloc;
-	int idx = 0, size;
+	int idx = 0;
 	void *buf;
 
 	/* Allocate a buffer for relocations */
-	size = nr * sizeof(GElf_Rel);
+	buf = malloc(sec->sh.sh_size);
-	buf = malloc(size);
 	if (!buf) {
 		perror("malloc");
 		return -1;
 	}
 
 	sec->data->d_buf = buf;
-	sec->data->d_size = size;
+	sec->data->d_size = sec->sh.sh_size;
 	sec->data->d_type = ELF_T_REL;
 
-	sec->sh.sh_size = size;
-
 	idx = 0;
 	list_for_each_entry(reloc, &sec->reloc_list, list) {
 		reloc->rel.r_offset = reloc->offset;
 		reloc->rel.r_info = GELF_R_INFO(reloc->sym->idx, reloc->type);
-		gelf_update_rel(sec->data, idx, &reloc->rel);
+		if (!gelf_update_rel(sec->data, idx, &reloc->rel)) {
+			WARN_ELF("gelf_update_rel");
+			return -1;
+		}
 		idx++;
 	}
 
 	return 0;
 }
 
-static int elf_rebuild_rela_reloc_section(struct section *sec, int nr)
+static int elf_rebuild_rela_reloc_section(struct section *sec)
 {
 	struct reloc *reloc;
-	int idx = 0, size;
+	int idx = 0;
 	void *buf;
 
 	/* Allocate a buffer for relocations with addends */
-	size = nr * sizeof(GElf_Rela);
+	buf = malloc(sec->sh.sh_size);
-	buf = malloc(size);
 	if (!buf) {
 		perror("malloc");
 		return -1;
 	}
 
 	sec->data->d_buf = buf;
-	sec->data->d_size = size;
+	sec->data->d_size = sec->sh.sh_size;
 	sec->data->d_type = ELF_T_RELA;
 
-	sec->sh.sh_size = size;
-
 	idx = 0;
 	list_for_each_entry(reloc, &sec->reloc_list, list) {
 		reloc->rela.r_offset = reloc->offset;
 		reloc->rela.r_addend = reloc->addend;
 		reloc->rela.r_info = GELF_R_INFO(reloc->sym->idx, reloc->type);
-		gelf_update_rela(sec->data, idx, &reloc->rela);
+		if (!gelf_update_rela(sec->data, idx, &reloc->rela)) {
+			WARN_ELF("gelf_update_rela");
+			return -1;
+		}
 		idx++;
 	}
 
@@ -1042,16 +1043,9 @@ static int elf_rebuild_rela_reloc_section(struct section *sec, int nr)
 
 static int elf_rebuild_reloc_section(struct elf *elf, struct section *sec)
 {
-	struct reloc *reloc;
-	int nr;
-
-	nr = 0;
-	list_for_each_entry(reloc, &sec->reloc_list, list)
-		nr++;
-
 	switch (sec->sh.sh_type) {
-	case SHT_REL:  return elf_rebuild_rel_reloc_section(sec, nr);
+	case SHT_REL:  return elf_rebuild_rel_reloc_section(sec);
-	case SHT_RELA: return elf_rebuild_rela_reloc_section(sec, nr);
+	case SHT_RELA: return elf_rebuild_rela_reloc_section(sec);
 	default:       return -1;
 	}
 }
@@ -1111,12 +1105,6 @@ int elf_write(struct elf *elf)
 	/* Update changed relocation sections and section headers: */
 	list_for_each_entry(sec, &elf->sections, list) {
 		if (sec->changed) {
-			if (sec->base &&
-			    elf_rebuild_reloc_section(elf, sec)) {
-				WARN("elf_rebuild_reloc_section");
-				return -1;
-			}
-
 			s = elf_getscn(elf->elf, sec->idx);
 			if (!s) {
 				WARN_ELF("elf_getscn");
@@ -1127,6 +1115,12 @@ int elf_write(struct elf *elf)
 				return -1;
 			}
 
+			if (sec->base &&
+			    elf_rebuild_reloc_section(elf, sec)) {
+				WARN("elf_rebuild_reloc_section");
+				return -1;
+			}
+
 			sec->changed = false;
 			elf->changed = true;
 		}

tools/perf/util/session.c

@@ -2116,7 +2116,7 @@ fetch_decomp_event(u64 head, size_t mmap_size, char *buf, bool needs_swap)
 static int __perf_session__process_decomp_events(struct perf_session *session)
 {
 	s64 skip;
-	u64 size, file_pos = 0;
+	u64 size;
 	struct decomp *decomp = session->decomp_last;
 
 	if (!decomp)
@@ -2132,7 +2132,7 @@ static int __perf_session__process_decomp_events(struct perf_session *session)
 		size = event->header.size;
 
 		if (size < sizeof(struct perf_event_header) ||
-		    (skip = perf_session__process_event(session, event, file_pos)) < 0) {
+		    (skip = perf_session__process_event(session, event, decomp->file_pos)) < 0) {
 			pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
 				decomp->file_pos + decomp->head, event->header.size, event->header.type);
 			return -EINVAL;

tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc

@@ -11,8 +11,8 @@ SYSTEM="syscalls"
 EVENT="sys_enter_openat"
 FIELD="filename"
 EPROBE="eprobe_open"
-
+OPTIONS="file=+0(\$filename):ustring"
-echo "e:$EPROBE $SYSTEM/$EVENT file=+0(\$filename):ustring" >> dynamic_events
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
 
 grep -q "$EPROBE" dynamic_events
 test -d events/eprobes/$EPROBE
@@ -37,4 +37,54 @@ echo "-:$EPROBE" >> dynamic_events
 ! grep -q "$EPROBE" dynamic_events
 ! test -d events/eprobes/$EPROBE
 
+# test various ways to remove the probe (already tested with just event name)
+
+# With group name
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With group name and system/event
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE $SYSTEM/$EVENT" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With just event name and system/event
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:$EPROBE $SYSTEM/$EVENT" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With just event name and system/event and options
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With group name and system/event and options
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# Finally make sure what is in the dynamic_events file clears it too
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+LINE=`sed -e '/$EPROBE/s/^e/-/' < dynamic_events`
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
 clear_trace