Merge tag 'v5.10.55' into 5.10

This is the 5.10.55 stable release

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 54
+SUBLEVEL = 55
 EXTRAVERSION =
 NAME = Dare mighty things
 

arch/arm/boot/dts/versatile-ab.dts

@@ -195,16 +195,15 @@
 		#size-cells = <1>;
 		ranges;
 
-		vic: intc@10140000 {
+		vic: interrupt-controller@10140000 {
 			compatible = "arm,versatile-vic";
 			interrupt-controller;
 			#interrupt-cells = <1>;
 			reg = <0x10140000 0x1000>;
-			clear-mask = <0xffffffff>;
 			valid-mask = <0xffffffff>;
 		};
 
-		sic: intc@10003000 {
+		sic: interrupt-controller@10003000 {
 			compatible = "arm,versatile-sic";
 			interrupt-controller;
 			#interrupt-cells = <1>;

arch/arm/boot/dts/versatile-pb.dts

@@ -7,7 +7,7 @@
 
 	amba {
 		/* The Versatile PB is using more SIC IRQ lines than the AB */
-		sic: intc@10003000 {
+		sic: interrupt-controller@10003000 {
 			clear-mask = <0xffffffff>;
 			/*
 			 * Valid interrupt lines mask according to

arch/x86/kvm/x86.c

@@ -541,8 +541,6 @@ static void kvm_multiple_exception(struct kvm_vcpu *vcpu,
 
 	if (!vcpu->arch.exception.pending && !vcpu->arch.exception.injected) {
 	queue:
-		if (has_error && !is_protmode(vcpu))
-			has_error = false;
 		if (reinject) {
 			/*
 			 * On vmentry, vcpu->arch.exception.pending is only
@@ -8265,6 +8263,13 @@ static void update_cr8_intercept(struct kvm_vcpu *vcpu)
 	kvm_x86_ops.update_cr8_intercept(vcpu, tpr, max_irr);
 }
 
+static void kvm_inject_exception(struct kvm_vcpu *vcpu)
+{
+	if (vcpu->arch.exception.error_code && !is_protmode(vcpu))
+		vcpu->arch.exception.error_code = false;
+	kvm_x86_ops.queue_exception(vcpu);
+}
+
 static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit)
 {
 	int r;
@@ -8273,7 +8278,7 @@ static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit
 	/* try to reinject previous events if any */
 
 	if (vcpu->arch.exception.injected) {
-		kvm_x86_ops.queue_exception(vcpu);
+		kvm_inject_exception(vcpu);
 		can_inject = false;
 	}
 	/*
@@ -8336,7 +8341,7 @@ static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit
 			}
 		}
 
-		kvm_x86_ops.queue_exception(vcpu);
+		kvm_inject_exception(vcpu);
 		can_inject = false;
 	}
 

drivers/firmware/arm_scmi/driver.c

@@ -43,7 +43,6 @@ enum scmi_error_codes {
 	SCMI_ERR_GENERIC = -8,	/* Generic Error */
 	SCMI_ERR_HARDWARE = -9,	/* Hardware Error */
 	SCMI_ERR_PROTOCOL = -10,/* Protocol Error */
-	SCMI_ERR_MAX
 };
 
 /* List of all SCMI devices active in system */
@@ -118,8 +117,10 @@ static const int scmi_linux_errmap[] = {
 
 static inline int scmi_to_linux_errno(int errno)
 {
-	if (errno < SCMI_SUCCESS && errno > SCMI_ERR_MAX)
-		return scmi_linux_errmap[-errno];
+	int err_idx = -errno;
+
+	if (err_idx >= SCMI_SUCCESS && err_idx < ARRAY_SIZE(scmi_linux_errmap))
+		return scmi_linux_errmap[err_idx];
 	return -EIO;
 }
 
@@ -614,8 +615,9 @@ static int __scmi_xfer_info_init(struct scmi_info *sinfo,
 	const struct scmi_desc *desc = sinfo->desc;
 
 	/* Pre-allocated messages, no more than what hdr.seq can support */
-	if (WARN_ON(desc->max_msg >= MSG_TOKEN_MAX)) {
-		dev_err(dev, "Maximum message of %d exceeds supported %ld\n",
+	if (WARN_ON(!desc->max_msg || desc->max_msg > MSG_TOKEN_MAX)) {
+		dev_err(dev,
+			"Invalid maximum messages %d, not in range [1 - %lu]\n",
 			desc->max_msg, MSG_TOKEN_MAX);
 		return -EINVAL;
 	}

drivers/gpu/drm/ttm/ttm_range_manager.c

@@ -147,6 +147,9 @@ int ttm_range_man_fini(struct ttm_bo_device *bdev,
 	struct drm_mm *mm = &rman->mm;
 	int ret;
 
+	if (!man)
+		return 0;
+
 	ttm_resource_manager_set_used(man, false);
 
 	ret = ttm_resource_manager_force_list_clean(bdev, man);

fs/cifs/smb2ops.c

@@ -497,8 +497,8 @@ parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf,
 	p = buf;
 	while (bytes_left >= sizeof(*p)) {
 		info->speed = le64_to_cpu(p->LinkSpeed);
-		info->rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE);
-		info->rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE);
+		info->rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE) ? 1 : 0;
+		info->rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE) ? 1 : 0;
 
 		cifs_dbg(FYI, "%s: adding iface %zu\n", __func__, *iface_count);
 		cifs_dbg(FYI, "%s: speed %zu bps\n", __func__, info->speed);

fs/hfs/bfind.c

@@ -25,7 +25,19 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd)
 	fd->key = ptr + tree->max_key_len + 2;
 	hfs_dbg(BNODE_REFS, "find_init: %d (%p)\n",
 		tree->cnid, __builtin_return_address(0));
-	mutex_lock(&tree->tree_lock);
+	switch (tree->cnid) {
+	case HFS_CAT_CNID:
+		mutex_lock_nested(&tree->tree_lock, CATALOG_BTREE_MUTEX);
+		break;
+	case HFS_EXT_CNID:
+		mutex_lock_nested(&tree->tree_lock, EXTENTS_BTREE_MUTEX);
+		break;
+	case HFS_ATTR_CNID:
+		mutex_lock_nested(&tree->tree_lock, ATTR_BTREE_MUTEX);
+		break;
+	default:
+		return -EINVAL;
+	}
 	return 0;
 }
 

fs/hfs/bnode.c

@@ -15,16 +15,31 @@
 
 #include "btree.h"
 
-void hfs_bnode_read(struct hfs_bnode *node, void *buf,
-		int off, int len)
+void hfs_bnode_read(struct hfs_bnode *node, void *buf, int off, int len)
 {
 	struct page *page;
+	int pagenum;
+	int bytes_read;
+	int bytes_to_read;
+	void *vaddr;
 
 	off += node->page_offset;
-	page = node->page[0];
+	pagenum = off >> PAGE_SHIFT;
+	off &= ~PAGE_MASK; /* compute page offset for the first page */
 
-	memcpy(buf, kmap(page) + off, len);
-	kunmap(page);
+	for (bytes_read = 0; bytes_read < len; bytes_read += bytes_to_read) {
+		if (pagenum >= node->tree->pages_per_bnode)
+			break;
+		page = node->page[pagenum];
+		bytes_to_read = min_t(int, len - bytes_read, PAGE_SIZE - off);
+
+		vaddr = kmap_atomic(page);
+		memcpy(buf + bytes_read, vaddr + off, bytes_to_read);
+		kunmap_atomic(vaddr);
+
+		pagenum++;
+		off = 0; /* page offset only applies to the first page */
+	}
 }
 
 u16 hfs_bnode_read_u16(struct hfs_bnode *node, int off)

fs/hfs/btree.h

@@ -13,6 +13,13 @@ typedef int (*btree_keycmp)(const btree_key *, const btree_key *);
 
 #define NODE_HASH_SIZE  256
 
+/* B-tree mutex nested subclasses */
+enum hfs_btree_mutex_classes {
+	CATALOG_BTREE_MUTEX,
+	EXTENTS_BTREE_MUTEX,
+	ATTR_BTREE_MUTEX,
+};
+
 /* A HFS BTree held in memory */
 struct hfs_btree {
 	struct super_block *sb;

fs/hfs/super.c

@@ -420,14 +420,12 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!res) {
 		if (fd.entrylength > sizeof(rec) || fd.entrylength < 0) {
 			res =  -EIO;
-			goto bail;
+			goto bail_hfs_find;
 		}
 		hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, fd.entrylength);
 	}
-	if (res) {
-		hfs_find_exit(&fd);
-		goto bail_no_root;
-	}
+	if (res)
+		goto bail_hfs_find;
 	res = -EINVAL;
 	root_inode = hfs_iget(sb, &fd.search_key->cat, &rec);
 	hfs_find_exit(&fd);
@@ -443,6 +441,8 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 	/* everything's okay */
 	return 0;
 
+bail_hfs_find:
+	hfs_find_exit(&fd);
 bail_no_root:
 	pr_err("get root inode failed\n");
 bail:

fs/internal.h

@@ -64,7 +64,6 @@ extern void __init chrdev_init(void);
  */
 extern const struct fs_context_operations legacy_fs_context_ops;
 extern int parse_monolithic_mount_data(struct fs_context *, void *);
-extern void fc_drop_locked(struct fs_context *);
 extern void vfs_clean_context(struct fs_context *fc);
 extern int finish_clean_context(struct fs_context *fc);
 

fs/io_uring.c

@@ -6266,7 +6266,6 @@ static enum hrtimer_restart io_link_timeout_fn(struct hrtimer *timer)
 	if (prev) {
 		io_async_find_and_cancel(ctx, req, prev->user_data, -ETIME);
 		io_put_req_deferred(prev, 1);
-		io_put_req_deferred(req, 1);
 	} else {
 		io_cqring_add_event(req, -ETIME, 0);
 		io_put_req_deferred(req, 1);

fs/iomap/seek.c

@@ -140,23 +140,20 @@ loff_t
 iomap_seek_hole(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
 {
 	loff_t size = i_size_read(inode);
-	loff_t length = size - offset;
 	loff_t ret;
 
 	/* Nothing to be found before or beyond the end of the file. */
 	if (offset < 0 || offset >= size)
 		return -ENXIO;
 
-	while (length > 0) {
-		ret = iomap_apply(inode, offset, length, IOMAP_REPORT, ops,
-				  &offset, iomap_seek_hole_actor);
+	while (offset < size) {
+		ret = iomap_apply(inode, offset, size - offset, IOMAP_REPORT,
+				  ops, &offset, iomap_seek_hole_actor);
 		if (ret < 0)
 			return ret;
 		if (ret == 0)
 			break;
-
 		offset += ret;
-		length -= ret;
 	}
 
 	return offset;
@@ -186,27 +183,23 @@ loff_t
 iomap_seek_data(struct inode *inode, loff_t offset, const struct iomap_ops *ops)
 {
 	loff_t size = i_size_read(inode);
-	loff_t length = size - offset;
 	loff_t ret;
 
 	/* Nothing to be found before or beyond the end of the file. */
 	if (offset < 0 || offset >= size)
 		return -ENXIO;
 
-	while (length > 0) {
-		ret = iomap_apply(inode, offset, length, IOMAP_REPORT, ops,
-				  &offset, iomap_seek_data_actor);
+	while (offset < size) {
+		ret = iomap_apply(inode, offset, size - offset, IOMAP_REPORT,
+				  ops, &offset, iomap_seek_data_actor);
 		if (ret < 0)
 			return ret;
 		if (ret == 0)
-			break;
-
+			return offset;
 		offset += ret;
-		length -= ret;
 	}
 
-	if (length <= 0)
-		return -ENXIO;
-	return offset;
+	/* We've reached the end of the file without finding data */
+	return -ENXIO;
 }
 EXPORT_SYMBOL_GPL(iomap_seek_data);

include/linux/fs_context.h

@@ -139,6 +139,7 @@ extern int vfs_parse_fs_string(struct fs_context *fc, const char *key,
 extern int generic_parse_monolithic(struct fs_context *fc, void *data);
 extern int vfs_get_tree(struct fs_context *fc);
 extern void put_fs_context(struct fs_context *fc);
+extern void fc_drop_locked(struct fs_context *fc);
 
 /*
  * sget() wrappers to be called from the ->get_tree() op.

include/net/busy_poll.h

@@ -36,7 +36,7 @@ static inline bool net_busy_loop_on(void)
 
 static inline bool sk_can_busy_loop(const struct sock *sk)
 {
-	return sk->sk_ll_usec && !signal_pending(current);
+	return READ_ONCE(sk->sk_ll_usec) && !signal_pending(current);
 }
 
 bool sk_busy_loop_end(void *p, unsigned long start_time);

include/net/sctp/constants.h

@@ -340,16 +340,14 @@ enum {
 #define SCTP_SCOPE_POLICY_MAX	SCTP_SCOPE_POLICY_LINK
 
 /* Based on IPv4 scoping <draft-stewart-tsvwg-sctp-ipv4-00.txt>,
- * SCTP IPv4 unusable addresses: 0.0.0.0/8, 224.0.0.0/4, 198.18.0.0/24,
- * 192.88.99.0/24.
+ * SCTP IPv4 unusable addresses: 0.0.0.0/8, 224.0.0.0/4, 192.88.99.0/24.
  * Also, RFC 8.4, non-unicast addresses are not considered valid SCTP
  * addresses.
  */
 #define IS_IPV4_UNUSABLE_ADDRESS(a)	    \
 	((htonl(INADDR_BROADCAST) == a) ||  \
 	 ipv4_is_multicast(a) ||	    \
 	 ipv4_is_zeronet(a) ||		    \
-	 ipv4_is_test_198(a) ||		    \
 	 ipv4_is_anycast_6to4(a))
 
 /* Flags used for the bind address copy functions.  */

kernel/cgroup/cgroup-v1.c

@@ -1225,9 +1225,7 @@ int cgroup1_get_tree(struct fs_context *fc)
 		ret = cgroup_do_get_tree(fc);
 
 	if (!ret && percpu_ref_is_dying(&ctx->root->cgrp.self.refcnt)) {
-		struct super_block *sb = fc->root->d_sb;
-		dput(fc->root);
-		deactivate_locked_super(sb);
+		fc_drop_locked(fc);
 		ret = 1;
 	}
 

kernel/rcu/tasks.h

@@ -879,10 +879,9 @@ static bool trc_inspect_reader(struct task_struct *t, void *arg)
 		in_qs = likely(!t->trc_reader_nesting);
 	}
 
-	// Mark as checked.  Because this is called from the grace-period
-	// kthread, also remove the task from the holdout list.
+	// Mark as checked so that the grace-period kthread will
+	// remove it from the holdout list.
 	t->trc_reader_checked = true;
-	trc_del_holdout(t);
 
 	if (in_qs)
 		return true;  // Already in quiescent state, done!!!
@@ -909,7 +908,6 @@ static void trc_wait_for_one_reader(struct task_struct *t,
 	// The current task had better be in a quiescent state.
 	if (t == current) {
 		t->trc_reader_checked = true;
-		trc_del_holdout(t);
 		WARN_ON_ONCE(t->trc_reader_nesting);
 		return;
 	}