Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up fixes that went thru perf/urgent.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

11 files changed, 54 insertions, 37 deletions

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 4b3d0b16c185..a647e5fabdbd 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -506,8 +506,7 @@ static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
 
 		tmp = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
 		if (IS_ERR(tmp)) {
-			kfree_skb(skb);
-			return tmp;
+			return skb;
 		}
 
 		len -= tmp->len;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 586f69d084a2..e336e9c1dda4 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1489,6 +1489,14 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 /* Extended advertising support */
 #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV))
 
+/* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789:
+ *
+ * C24: Mandatory if the LE Controller supports Connection State and either
+ * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported
+ */
+#define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \
+					 ext_adv_capable(dev))
+
 /* ----- HCI protocols ----- */
 #define HCI_PROTO_DEFER             0x01
 
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 5218041e5c8f..79c67f14c448 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -22,7 +22,7 @@
 #include <asm/checksum.h>
 
 #ifndef _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
-static inline
+static __always_inline
 __wsum csum_and_copy_from_user (const void __user *src, void *dst,
 				      int len)
 {
@@ -33,7 +33,7 @@ __wsum csum_and_copy_from_user (const void __user *src, void *dst,
 #endif
 
 #ifndef HAVE_CSUM_COPY_USER
-static __inline__ __wsum csum_and_copy_to_user
+static __always_inline __wsum csum_and_copy_to_user
 (const void *src, void __user *dst, int len)
 {
 	__wsum sum = csum_partial(src, len, ~0U);
@@ -45,7 +45,7 @@ static __inline__ __wsum csum_and_copy_to_user
 #endif
 
 #ifndef _HAVE_ARCH_CSUM_AND_COPY
-static inline __wsum
+static __always_inline __wsum
 csum_partial_copy_nocheck(const void *src, void *dst, int len)
 {
 	memcpy(dst, src, len);
@@ -54,7 +54,7 @@ csum_partial_copy_nocheck(const void *src, void *dst, int len)
 #endif
 
 #ifndef HAVE_ARCH_CSUM_ADD
-static inline __wsum csum_add(__wsum csum, __wsum addend)
+static __always_inline __wsum csum_add(__wsum csum, __wsum addend)
 {
 	u32 res = (__force u32)csum;
 	res += (__force u32)addend;
@@ -62,12 +62,12 @@ static inline __wsum csum_add(__wsum csum, __wsum addend)
 }
 #endif
 
-static inline __wsum csum_sub(__wsum csum, __wsum addend)
+static __always_inline __wsum csum_sub(__wsum csum, __wsum addend)
 {
 	return csum_add(csum, ~addend);
 }
 
-static inline __sum16 csum16_add(__sum16 csum, __be16 addend)
+static __always_inline __sum16 csum16_add(__sum16 csum, __be16 addend)
 {
 	u16 res = (__force u16)csum;
 
@@ -75,12 +75,12 @@ static inline __sum16 csum16_add(__sum16 csum, __be16 addend)
 	return (__force __sum16)(res + (res < (__force u16)addend));
 }
 
-static inline __sum16 csum16_sub(__sum16 csum, __be16 addend)
+static __always_inline __sum16 csum16_sub(__sum16 csum, __be16 addend)
 {
 	return csum16_add(csum, ~addend);
 }
 
-static inline __wsum csum_shift(__wsum sum, int offset)
+static __always_inline __wsum csum_shift(__wsum sum, int offset)
 {
 	/* rotate sum to align it with a 16b boundary */
 	if (offset & 1)
@@ -88,42 +88,43 @@ static inline __wsum csum_shift(__wsum sum, int offset)
 	return sum;
 }
 
-static inline __wsum
+static __always_inline __wsum
 csum_block_add(__wsum csum, __wsum csum2, int offset)
 {
 	return csum_add(csum, csum_shift(csum2, offset));
 }
 
-static inline __wsum
+static __always_inline __wsum
 csum_block_add_ext(__wsum csum, __wsum csum2, int offset, int len)
 {
 	return csum_block_add(csum, csum2, offset);
 }
 
-static inline __wsum
+static __always_inline __wsum
 csum_block_sub(__wsum csum, __wsum csum2, int offset)
 {
 	return csum_block_add(csum, ~csum2, offset);
 }
 
-static inline __wsum csum_unfold(__sum16 n)
+static __always_inline __wsum csum_unfold(__sum16 n)
 {
 	return (__force __wsum)n;
 }
 
-static inline __wsum csum_partial_ext(const void *buff, int len, __wsum sum)
+static __always_inline
+__wsum csum_partial_ext(const void *buff, int len, __wsum sum)
 {
 	return csum_partial(buff, len, sum);
 }
 
 #define CSUM_MANGLED_0 ((__force __sum16)0xffff)
 
-static inline void csum_replace_by_diff(__sum16 *sum, __wsum diff)
+static __always_inline void csum_replace_by_diff(__sum16 *sum, __wsum diff)
 {
 	*sum = csum_fold(csum_add(diff, ~csum_unfold(*sum)));
 }
 
-static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
+static __always_inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
 {
 	__wsum tmp = csum_sub(~csum_unfold(*sum), (__force __wsum)from);
 
@@ -136,11 +137,16 @@ static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
  *  m : old value of a 16bit field
  *  m' : new value of a 16bit field
  */
-static inline void csum_replace2(__sum16 *sum, __be16 old, __be16 new)
+static __always_inline void csum_replace2(__sum16 *sum, __be16 old, __be16 new)
 {
 	*sum = ~csum16_add(csum16_sub(~(*sum), old), new);
 }
 
+static inline void csum_replace(__wsum *csum, __wsum old, __wsum new)
+{
+	*csum = csum_add(csum_sub(*csum, old), new);
+}
+
 struct sk_buff;
 void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb,
 			      __be32 from, __be32 to, bool pseudohdr);
@@ -150,16 +156,16 @@ void inet_proto_csum_replace16(__sum16 *sum, struct sk_buff *skb,
 void inet_proto_csum_replace_by_diff(__sum16 *sum, struct sk_buff *skb,
 				     __wsum diff, bool pseudohdr);
 
-static inline void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb,
-					    __be16 from, __be16 to,
-					    bool pseudohdr)
+static __always_inline
+void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb,
+			      __be16 from, __be16 to, bool pseudohdr)
 {
 	inet_proto_csum_replace4(sum, skb, (__force __be32)from,
 				 (__force __be32)to, pseudohdr);
 }
 
-static inline __wsum remcsum_adjust(void *ptr, __wsum csum,
-				    int start, int offset)
+static __always_inline __wsum remcsum_adjust(void *ptr, __wsum csum,
+					     int start, int offset)
 {
 	__sum16 *psum = (__sum16 *)(ptr + offset);
 	__wsum delta;
@@ -175,12 +181,12 @@ static inline __wsum remcsum_adjust(void *ptr, __wsum csum,
 	return delta;
 }
 
-static inline void remcsum_unadjust(__sum16 *psum, __wsum delta)
+static __always_inline void remcsum_unadjust(__sum16 *psum, __wsum delta)
 {
 	*psum = csum_fold(csum_sub(delta, (__force __wsum)*psum));
 }
 
-static inline __wsum wsum_negate(__wsum val)
+static __always_inline __wsum wsum_negate(__wsum val)
 {
 	return (__force __wsum)-((__force u32)val);
 }
diff --git a/include/net/esp.h b/include/net/esp.h
index 9c5637d41d95..90cd02ff77ef 100644
--- a/include/net/esp.h
+++ b/include/net/esp.h
@@ -4,6 +4,8 @@
 
 #include <linux/skbuff.h>
 
+#define ESP_SKB_FRAG_MAXSIZE (PAGE_SIZE << SKB_FRAG_PAGE_ORDER)
+
 struct ip_esp_hdr;
 
 static inline struct ip_esp_hdr *ip_esp_hdr(const struct sk_buff *skb)
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 53cb8de0e589..47ffb360ddfa 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -475,9 +475,9 @@ int igmp6_late_init(void);
 void igmp6_cleanup(void);
 void igmp6_late_cleanup(void);
 
-int igmp6_event_query(struct sk_buff *skb);
+void igmp6_event_query(struct sk_buff *skb);
 
-int igmp6_event_report(struct sk_buff *skb);
+void igmp6_event_report(struct sk_buff *skb);
 
 
 #ifdef CONFIG_SYSCTL
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h
index a3647fadf1cc..bd59e950f4d6 100644
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -96,6 +96,7 @@ enum flow_offload_xmit_type {
 	FLOW_OFFLOAD_XMIT_NEIGH,
 	FLOW_OFFLOAD_XMIT_XFRM,
 	FLOW_OFFLOAD_XMIT_DIRECT,
+	FLOW_OFFLOAD_XMIT_TC,
 };
 
 #define NF_FLOW_TABLE_ENCAP_MAX		2
@@ -127,7 +128,7 @@ struct flow_offload_tuple {
 	struct { }			__hash;
 
 	u8				dir:2,
-					xmit_type:2,
+					xmit_type:3,
 					encap_num:2,
 					in_vlan_ingress:2;
 	u16				mtu;
@@ -142,6 +143,9 @@ struct flow_offload_tuple {
 			u8		h_source[ETH_ALEN];
 			u8		h_dest[ETH_ALEN];
 		} out;
+		struct {
+			u32		iifidx;
+		} tc;
 	};
 };
 
diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index 9eed51e920e8..980daa6e1e3a 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -37,7 +37,7 @@ void nf_register_queue_handler(const struct nf_queue_handler *qh);
 void nf_unregister_queue_handler(void);
 void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
 
-void nf_queue_entry_get_refs(struct nf_queue_entry *entry);
+bool nf_queue_entry_get_refs(struct nf_queue_entry *entry);
 void nf_queue_entry_free(struct nf_queue_entry *entry);
 
 static inline void init_hashrandom(u32 *jhash_initval)
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index eaf55da9a205..c4c0861deac1 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -905,9 +905,9 @@ struct nft_expr_ops {
 	int				(*offload)(struct nft_offload_ctx *ctx,
 						   struct nft_flow_rule *flow,
 						   const struct nft_expr *expr);
+	bool				(*offload_action)(const struct nft_expr *expr);
 	void				(*offload_stats)(struct nft_expr *expr,
 							 const struct flow_stats *stats);
-	u32				offload_flags;
 	const struct nft_expr_type	*type;
 	void				*data;
 };
diff --git a/include/net/netfilter/nf_tables_offload.h b/include/net/netfilter/nf_tables_offload.h
index f9d95ff82df8..797147843958 100644
--- a/include/net/netfilter/nf_tables_offload.h
+++ b/include/net/netfilter/nf_tables_offload.h
@@ -67,8 +67,6 @@ struct nft_flow_rule {
 	struct flow_rule	*rule;
 };
 
-#define NFT_OFFLOAD_F_ACTION	(1 << 0)
-
 void nft_flow_rule_set_addr_type(struct nft_flow_rule *flow,
 				 enum flow_dissector_key_id addr_type);
 
diff --git a/include/net/sock.h b/include/net/sock.h
index ff9b508d9c5f..50aecd28b355 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -507,7 +507,7 @@ struct sock {
 #endif
 	u16			sk_tsflags;
 	u8			sk_shutdown;
-	u32			sk_tskey;
+	atomic_t		sk_tskey;
 	atomic_t		sk_zckey;
 
 	u8			sk_clockid;
@@ -2667,7 +2667,7 @@ static inline void _sock_tx_timestamp(struct sock *sk, __u16 tsflags,
 		__sock_tx_timestamp(tsflags, tx_flags);
 		if (tsflags & SOF_TIMESTAMPING_OPT_ID && tskey &&
 		    tsflags & SOF_TIMESTAMPING_TX_RECORD_MASK)
-			*tskey = sk->sk_tskey++;
+			*tskey = atomic_inc_return(&sk->sk_tskey) - 1;
 	}
 	if (unlikely(sock_flag(sk, SOCK_WIFI_STATUS)))
 		*tx_flags |= SKBTX_WIFI_STATUS;
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index fdb41e8bb626..76aa6f11a540 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1568,7 +1568,6 @@ void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si);
 void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si);
 u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq);
 int xfrm_init_replay(struct xfrm_state *x);
-u32 __xfrm_state_mtu(struct xfrm_state *x, int mtu);
 u32 xfrm_state_mtu(struct xfrm_state *x, int mtu);
 int __xfrm_init_state(struct xfrm_state *x, bool init_replay, bool offload);
 int xfrm_init_state(struct xfrm_state *x);
@@ -1681,14 +1680,15 @@ int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 	       const struct xfrm_migrate *m, int num_bundles,
 	       const struct xfrm_kmaddress *k,
 	       const struct xfrm_encap_tmpl *encap);
-struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net);
+struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m, struct net *net,
+						u32 if_id);
 struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
 				      struct xfrm_migrate *m,
 				      struct xfrm_encap_tmpl *encap);
 int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
 		 struct xfrm_migrate *m, int num_bundles,
 		 struct xfrm_kmaddress *k, struct net *net,
-		 struct xfrm_encap_tmpl *encap);
+		 struct xfrm_encap_tmpl *encap, u32 if_id);
 #endif
 
 int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);