Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Cross-merge networking fixes after downstream PR.

Conflicts:

net/sched/sch_taprio.c
  d636fc5dd692 ("net: sched: add rcu annotations around qdisc->qdisc_sleeping")
  dced11ef84fb ("net/sched: taprio: don't overwrite "sch" variable in taprio_dump_class_stats()")

net/ipv4/sysctl_net_ipv4.c
  e209fee4118f ("net/ipv4: ping_group_range: allow GID from 2147483648 to 4294967294")
  ccce324dabfe ("tcp: make the first N SYN RTO backoffs linear")
https://lore.kernel.org/all/20230605100816.08d41a7b@canb.auug.org.au/

No adjacent changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

21 files changed, 75 insertions, 46 deletions

diff --git a/include/linux/cper.h b/include/linux/cper.h
index eacb7dd7b3af..c1a7dc325121 100644
--- a/include/linux/cper.h
+++ b/include/linux/cper.h
@@ -572,4 +572,10 @@ void cper_print_proc_ia(const char *pfx,
 int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg);
 int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg);
 
+struct acpi_hest_generic_status;
+void cper_estatus_print(const char *pfx,
+			const struct acpi_hest_generic_status *estatus);
+int cper_estatus_check_header(const struct acpi_hest_generic_status *estatus);
+int cper_estatus_check(const struct acpi_hest_generic_status *estatus);
+
 #endif
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 7aa62c92185f..571d1a6e1b74 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1338,4 +1338,6 @@ bool efi_config_table_is_usable(const efi_guid_t *guid, unsigned long table)
 	return xen_efi_config_table_is_usable(guid, table);
 }
 
+umode_t efi_attr_is_visible(struct kobject *kobj, struct attribute *attr, int n);
+
 #endif /* _LINUX_EFI_H */
diff --git a/include/linux/iio/iio-gts-helper.h b/include/linux/iio/iio-gts-helper.h
index dd64e544a3da..9cb6c80dea71 100644
--- a/include/linux/iio/iio-gts-helper.h
+++ b/include/linux/iio/iio-gts-helper.h
@@ -135,7 +135,7 @@ static inline int iio_gts_find_int_time_by_sel(struct iio_gts *gts, int sel)
 /**
  * iio_gts_find_sel_by_int_time - find selector matching integration time
  * @gts:	Gain time scale descriptor
- * @gain:	HW-gain for which matching selector is searched for
+ * @time:	Integration time for which matching selector is searched for
  *
  * Return:	a selector matching given integration time or -EINVAL if
  *		selector was not found.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 08fbd4622ccf..c2f0c6002a84 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -620,7 +620,7 @@ struct netdev_queue {
 	netdevice_tracker	dev_tracker;
 
 	struct Qdisc __rcu	*qdisc;
-	struct Qdisc		*qdisc_sleeping;
+	struct Qdisc __rcu	*qdisc_sleeping;
 #ifdef CONFIG_SYSFS
 	struct kobject		kobj;
 #endif
@@ -768,8 +768,11 @@ static inline void rps_record_sock_flow(struct rps_sock_flow_table *table,
 		/* We only give a hint, preemption can change CPU under us */
 		val |= raw_smp_processor_id();
 
-		if (table->ents[index] != val)
-			table->ents[index] = val;
+		/* The following WRITE_ONCE() is paired with the READ_ONCE()
+		 * here, and another one in get_rps_cpu().
+		 */
+		if (READ_ONCE(table->ents[index]) != val)
+			WRITE_ONCE(table->ents[index], val);
 	}
 }
 
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 1c68d67b832f..92a2063a0a23 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -617,6 +617,12 @@ PAGEFLAG_FALSE(VmemmapSelfHosted, vmemmap_self_hosted)
  * Please note that, confusingly, "page_mapping" refers to the inode
  * address_space which maps the page from disk; whereas "page_mapped"
  * refers to user virtual address space into which the page is mapped.
+ *
+ * For slab pages, since slab reuses the bits in struct page to store its
+ * internal states, the page->mapping does not exist as such, nor do these
+ * flags below.  So in order to avoid testing non-existent bits, please
+ * make sure that PageSlab(page) actually evaluates to false before calling
+ * the following functions (e.g., PageAnon).  See mm/slab.h.
  */
 #define PAGE_MAPPING_ANON	0x1
 #define PAGE_MAPPING_MOVABLE	0x2
diff --git a/include/linux/pe.h b/include/linux/pe.h
index 5e1e11540870..fdf9c95709ba 100644
--- a/include/linux/pe.h
+++ b/include/linux/pe.h
@@ -11,25 +11,26 @@
 #include <linux/types.h>
 
 /*
- * Linux EFI stub v1.0 adds the following functionality:
- * - Loading initrd from the LINUX_EFI_INITRD_MEDIA_GUID device path,
- * - Loading/starting the kernel from firmware that targets a different
- *   machine type, via the entrypoint exposed in the .compat PE/COFF section.
+ * Starting from version v3.0, the major version field should be interpreted as
+ * a bit mask of features supported by the kernel's EFI stub:
+ * - 0x1: initrd loading from the LINUX_EFI_INITRD_MEDIA_GUID device path,
+ * - 0x2: initrd loading using the initrd= command line option, where the file
+ *        may be specified using device path notation, and is not required to
+ *        reside on the same volume as the loaded kernel image.
  *
  * The recommended way of loading and starting v1.0 or later kernels is to use
  * the LoadImage() and StartImage() EFI boot services, and expose the initrd
  * via the LINUX_EFI_INITRD_MEDIA_GUID device path.
  *
- * Versions older than v1.0 support initrd loading via the image load options
- * (using initrd=, limited to the volume from which the kernel itself was
- * loaded), or via arch specific means (bootparams, DT, etc).
+ * Versions older than v1.0 may support initrd loading via the image load
+ * options (using initrd=, limited to the volume from which the kernel itself
+ * was loaded), or only via arch specific means (bootparams, DT, etc).
  *
- * On x86, LoadImage() and StartImage() can be omitted if the EFI handover
- * protocol is implemented, which can be inferred from the version,
- * handover_offset and xloadflags fields in the bootparams structure.
+ * The minor version field must remain 0x0.
+ * (https://lore.kernel.org/all/efd6f2d4-547c-1378-1faa-53c044dbd297@gmail.com/)
  */
-#define LINUX_EFISTUB_MAJOR_VERSION		0x1
-#define LINUX_EFISTUB_MINOR_VERSION		0x1
+#define LINUX_EFISTUB_MAJOR_VERSION		0x3
+#define LINUX_EFISTUB_MINOR_VERSION		0x0
 
 /*
  * LINUX_PE_MAGIC appears at offset 0x38 into the MS-DOS header of EFI bootable
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index d16ae621782c..a7116048a4d4 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -61,10 +61,9 @@ int		svc_recv(struct svc_rqst *, long);
 void		svc_send(struct svc_rqst *rqstp);
 void		svc_drop(struct svc_rqst *);
 void		svc_sock_update_bufs(struct svc_serv *serv);
-bool		svc_alien_sock(struct net *net, int fd);
-int		svc_addsock(struct svc_serv *serv, const int fd,
-					char *name_return, const size_t len,
-					const struct cred *cred);
+int		svc_addsock(struct svc_serv *serv, struct net *net,
+			    const int fd, char *name_return, const size_t len,
+			    const struct cred *cred);
 void		svc_init_xprt_sock(void);
 void		svc_cleanup_xprt_sock(void);
 struct svc_xprt *svc_sock_create(struct svc_serv *serv, int prot);
diff --git a/include/linux/surface_aggregator/device.h b/include/linux/surface_aggregator/device.h
index df81043b9e71..42b249b4c24b 100644
--- a/include/linux/surface_aggregator/device.h
+++ b/include/linux/surface_aggregator/device.h
@@ -243,11 +243,7 @@ static inline bool is_ssam_device(struct device *d)
  * Return: Returns the pointer to the &struct ssam_device_driver wrapping the
  * given device driver @d.
  */
-static inline
-struct ssam_device_driver *to_ssam_device_driver(struct device_driver *d)
-{
-	return container_of(d, struct ssam_device_driver, driver);
-}
+#define to_ssam_device_driver(d)	container_of_const(d, struct ssam_device_driver, driver)
 
 const struct ssam_device_id *ssam_device_id_match(const struct ssam_device_id *table,
 						  const struct ssam_device_uid uid);
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 094c77eaf455..0c7eff91adf4 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -501,6 +501,11 @@ void *hcd_buffer_alloc(struct usb_bus *bus, size_t size,
 void hcd_buffer_free(struct usb_bus *bus, size_t size,
 	void *addr, dma_addr_t dma);
 
+void *hcd_buffer_alloc_pages(struct usb_hcd *hcd,
+		size_t size, gfp_t mem_flags, dma_addr_t *dma);
+void hcd_buffer_free_pages(struct usb_hcd *hcd,
+		size_t size, void *addr, dma_addr_t dma);
+
 /* generic bus glue, needed for host controllers that don't use PCI */
 extern irqreturn_t usb_hcd_irq(int irq, void *__hcd);
 
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index cfd19e72d0fc..b325df0d54d6 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -1119,6 +1119,7 @@ struct v4l2_subdev {
  * @vfh: pointer to &struct v4l2_fh
  * @state: pointer to &struct v4l2_subdev_state
  * @owner: module pointer to the owner of this file handle
+ * @client_caps: bitmask of ``V4L2_SUBDEV_CLIENT_CAP_*``
  */
 struct v4l2_subdev_fh {
 	struct v4l2_fh vfh;
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 07df96c47ef4..872dcb91a540 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -350,6 +350,7 @@ enum {
 enum {
 	HCI_SETUP,
 	HCI_CONFIG,
+	HCI_DEBUGFS_CREATED,
 	HCI_AUTO_OFF,
 	HCI_RFKILLED,
 	HCI_MGMT,
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 8baf34639939..9654567cfae3 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -515,6 +515,7 @@ struct hci_dev {
 	struct work_struct	cmd_sync_work;
 	struct list_head	cmd_sync_work_list;
 	struct mutex		cmd_sync_work_lock;
+	struct mutex		unregister_lock;
 	struct work_struct	cmd_sync_cancel_work;
 	struct work_struct	reenable_adv_work;
 
@@ -1201,7 +1202,8 @@ static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev,
 		if (id != BT_ISO_QOS_CIS_UNSET && id != c->iso_qos.ucast.cis)
 			continue;
 
-		if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) {
+		/* Match destination address if set */
+		if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) {
 			rcu_read_unlock();
 			return c;
 		}
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 3fa5774bddac..f6a8ecc6b1fa 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -180,7 +180,7 @@ struct pneigh_entry {
 	netdevice_tracker	dev_tracker;
 	u32			flags;
 	u8			protocol;
-	u8			key[];
+	u32			key[];
 };
 
 /*
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 3cceb3e9320b..5f2cfd84570a 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -53,7 +53,7 @@ struct netns_sysctl_ipv6 {
 	int seg6_flowlabel;
 	u32 ioam6_id;
 	u64 ioam6_id_wide;
-	bool skip_notify_on_dev_down;
+	u8 skip_notify_on_dev_down;
 	u8 fib_notify_on_flag_change;
 	u8 icmpv6_error_anycast_as_unicast;
 };
diff --git a/include/net/ping.h b/include/net/ping.h
index 9233ad3de0ad..bc7779262e60 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -16,11 +16,7 @@
 #define PING_HTABLE_SIZE 	64
 #define PING_HTABLE_MASK 	(PING_HTABLE_SIZE-1)
 
-/*
- * gid_t is either uint or ushort.  We want to pass it to
- * proc_dointvec_minmax(), so it must not be larger than MAX_INT
- */
-#define GID_T_MAX (((gid_t)~0U) >> 1)
+#define GID_T_MAX (((gid_t)~0U) - 1)
 
 /* Compatibility glue so we can support IPv6 when it's compiled as a module */
 struct pingv6_ops {
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 530d33adec88..518febb91c9f 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -127,6 +127,8 @@ static inline void qdisc_run(struct Qdisc *q)
 	}
 }
 
+extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1];
+
 /* Calculate maximal size of packet seen by hard_start_xmit
    routine of this device.
  */
diff --git a/include/net/rpl.h b/include/net/rpl.h
index 308ef0a05cae..30fe780d1e7c 100644
--- a/include/net/rpl.h
+++ b/include/net/rpl.h
@@ -23,9 +23,6 @@ static inline int rpl_init(void)
 static inline void rpl_exit(void) {}
 #endif
 
-/* Worst decompression memory usage ipv6 address (16) + pad 7 */
-#define IPV6_RPL_SRH_WORST_SWAP_SIZE (sizeof(struct in6_addr) + 7)
-
 size_t ipv6_rpl_srh_size(unsigned char n, unsigned char cmpri,
 			 unsigned char cmpre);
 
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index fab5ba3e61b7..27271f2b37cb 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -545,7 +545,7 @@ static inline struct Qdisc *qdisc_root_bh(const struct Qdisc *qdisc)
 
 static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc)
 {
-	return qdisc->dev_queue->qdisc_sleeping;
+	return rcu_dereference_rtnl(qdisc->dev_queue->qdisc_sleeping);
 }
 
 static inline spinlock_t *qdisc_root_sleeping_lock(const struct Qdisc *qdisc)
@@ -754,7 +754,9 @@ static inline bool qdisc_tx_changing(const struct net_device *dev)
 
 	for (i = 0; i < dev->num_tx_queues; i++) {
 		struct netdev_queue *txq = netdev_get_tx_queue(dev, i);
-		if (rcu_access_pointer(txq->qdisc) != txq->qdisc_sleeping)
+
+		if (rcu_access_pointer(txq->qdisc) !=
+		    rcu_access_pointer(txq->qdisc_sleeping))
 			return true;
 	}
 	return false;
diff --git a/include/net/sock.h b/include/net/sock.h
index b418425d7230..6f428a7f3567 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1152,8 +1152,12 @@ static inline void sock_rps_record_flow(const struct sock *sk)
 		 * OR	an additional socket flag
 		 * [1] : sk_state and sk_prot are in the same cache line.
 		 */
-		if (sk->sk_state == TCP_ESTABLISHED)
-			sock_rps_record_flow_hash(sk->sk_rxhash);
+		if (sk->sk_state == TCP_ESTABLISHED) {
+			/* This READ_ONCE() is paired with the WRITE_ONCE()
+			 * from sock_rps_save_rxhash() and sock_rps_reset_rxhash().
+			 */
+			sock_rps_record_flow_hash(READ_ONCE(sk->sk_rxhash));
+		}
 	}
 #endif
 }
@@ -1162,15 +1166,19 @@ static inline void sock_rps_save_rxhash(struct sock *sk,
 					const struct sk_buff *skb)
 {
 #ifdef CONFIG_RPS
-	if (unlikely(sk->sk_rxhash != skb->hash))
-		sk->sk_rxhash = skb->hash;
+	/* The following WRITE_ONCE() is paired with the READ_ONCE()
+	 * here, and another one in sock_rps_record_flow().
+	 */
+	if (unlikely(READ_ONCE(sk->sk_rxhash) != skb->hash))
+		WRITE_ONCE(sk->sk_rxhash, skb->hash);
 #endif
 }
 
 static inline void sock_rps_reset_rxhash(struct sock *sk)
 {
 #ifdef CONFIG_RPS
-	sk->sk_rxhash = 0;
+	/* Paired with READ_ONCE() in sock_rps_record_flow() */
+	WRITE_ONCE(sk->sk_rxhash, 0);
 #endif
 }
 
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index 229118156a1f..4c15420e8965 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -562,12 +562,13 @@ struct iscsit_conn {
 #define LOGIN_FLAGS_READ_ACTIVE		2
 #define LOGIN_FLAGS_WRITE_ACTIVE	3
 #define LOGIN_FLAGS_CLOSED		4
+#define LOGIN_FLAGS_WORKER_RUNNING	5
 	unsigned long		login_flags;
 	struct delayed_work	login_work;
 	struct iscsi_login	*login;
 	struct timer_list	nopin_timer;
 	struct timer_list	nopin_response_timer;
-	struct timer_list	transport_timer;
+	struct timer_list	login_timer;
 	struct task_struct	*login_kworker;
 	/* Spinlock used for add/deleting cmd's from conn_cmd_list */
 	spinlock_t		cmd_lock;
@@ -576,6 +577,8 @@ struct iscsit_conn {
 	spinlock_t		nopin_timer_lock;
 	spinlock_t		response_queue_lock;
 	spinlock_t		state_lock;
+	spinlock_t		login_timer_lock;
+	spinlock_t		login_worker_lock;
 	/* libcrypto RX and TX contexts for crc32c */
 	struct ahash_request	*conn_rx_hash;
 	struct ahash_request	*conn_tx_hash;
@@ -792,7 +795,6 @@ struct iscsi_np {
 	enum np_thread_state_table np_thread_state;
 	bool                    enabled;
 	atomic_t		np_reset_count;
-	enum iscsi_timer_flags_table np_login_timer_flags;
 	u32			np_exports;
 	enum np_flags_table	np_flags;
 	spinlock_t		np_thread_lock;
@@ -800,7 +802,6 @@ struct iscsi_np {
 	struct socket		*np_socket;
 	struct sockaddr_storage np_sockaddr;
 	struct task_struct	*np_thread;
-	struct timer_list	np_login_timer;
 	void			*np_context;
 	struct iscsit_transport *np_transport;
 	struct list_head	np_list;
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 9273c654743c..6961a7b70028 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -1035,6 +1035,7 @@ enum bpf_attach_type {
 	BPF_TRACE_KPROBE_MULTI,
 	BPF_LSM_CGROUP,
 	BPF_STRUCT_OPS,
+	BPF_NETFILTER,
 	__MAX_BPF_ATTACH_TYPE
 };