Merge tag 'net-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from rxrpc, netfilter, wireless and bluetooth
  subtrees.

  Current release - regressions:

   - skb: export skb drop reaons to user by TRACE_DEFINE_ENUM

   - bluetooth: fix regression preventing ACL packet transmission

  Current release - new code bugs:

   - dsa: microchip: fix kernel oops on ksz8 switches

   - dsa: qca8k: fix NULL pointer dereference for
     of_device_get_match_data

  Previous releases - regressions:

   - netfilter: clean up hook list when offload flags check fails

   - wifi: mt76: fix crash in chip reset fail

   - rxrpc: fix ICMP/ICMP6 error handling

   - ice: fix DMA mappings leak

   - i40e: fix kernel crash during module removal

  Previous releases - always broken:

   - ipv6: sr: fix out-of-bounds read when setting HMAC data.

   - tcp: TX zerocopy should not sense pfmemalloc status

   - sch_sfb: don't assume the skb is still around after
     enqueueing to child

   - netfilter: drop dst references before setting

   - wifi: wilc1000: fix DMA on stack objects

   - rxrpc: fix an insufficiently large sglist in
     rxkad_verify_packet_2()

   - fec: use a spinlock to guard `fep->ptp_clk_on`

  Misc:

   - usb: qmi_wwan: add Quectel RM520N"

* tag 'net-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (50 commits)
  sch_sfb: Also store skb len before calling child enqueue
  net: phy: lan87xx: change interrupt src of link_up to comm_ready
  net/smc: Fix possible access to freed memory in link clear
  net: ethernet: mtk_eth_soc: check max allowed hash in mtk_ppe_check_skb
  net: skb: export skb drop reaons to user by TRACE_DEFINE_ENUM
  net: ethernet: mtk_eth_soc: fix typo in __mtk_foe_entry_clear
  net: dsa: felix: access QSYS_TAG_CONFIG under tas_lock in vsc9959_sched_speed_set
  net: dsa: felix: disable cut-through forwarding for frames oversized for tc-taprio
  net: dsa: felix: tc-taprio intervals smaller than MTU should send at least one packet
  net: usb: qmi_wwan: add Quectel RM520N
  net: dsa: qca8k: fix NULL pointer dereference for of_device_get_match_data
  tcp: fix early ETIMEDOUT after spurious non-SACK RTO
  stmmac: intel: Simplify intel_eth_pci_remove()
  net: mvpp2: debugfs: fix memory leak when using debugfs_lookup()
  ipv6: sr: fix out-of-bounds read when setting HMAC data.
  bonding: accept unsolicited NA message
  bonding: add all node mcast address when slave up
  bonding: use unspecified address if no available link local address
  wifi: use struct_group to copy addresses
  wifi: mac80211_hwsim: check length for virtio packets
  ...

4 files changed, 7 insertions, 24 deletions

diff --git a/net/core/.gitignore b/net/core/.gitignore
deleted file mode 100644
index df1e74372cce..000000000000
--- a/net/core/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-dropreason_str.c
diff --git a/net/core/Makefile b/net/core/Makefile
index e8ce3bd283a6..5857cec87b83 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -5,7 +5,7 @@
 
 obj-y := sock.o request_sock.o skbuff.o datagram.o stream.o scm.o \
 	 gen_stats.o gen_estimator.o net_namespace.o secure_seq.o \
-	 flow_dissector.o dropreason_str.o
+	 flow_dissector.o
 
 obj-$(CONFIG_SYSCTL) += sysctl_net_core.o
 
@@ -40,23 +40,3 @@ obj-$(CONFIG_NET_SOCK_MSG) += skmsg.o
 obj-$(CONFIG_BPF_SYSCALL) += sock_map.o
 obj-$(CONFIG_BPF_SYSCALL) += bpf_sk_storage.o
 obj-$(CONFIG_OF)	+= of_net.o
-
-clean-files := dropreason_str.c
-
-quiet_cmd_dropreason_str = GEN     $@
-cmd_dropreason_str = awk -F ',' 'BEGIN{ print "\#include <net/dropreason.h>\n"; \
-	print "const char * const drop_reasons[] = {" }\
-	/^enum skb_drop/ { dr=1; }\
-	/^\};/ { dr=0; }\
-	/^\tSKB_DROP_REASON_/ {\
-		if (dr) {\
-			sub(/\tSKB_DROP_REASON_/, "", $$1);\
-			printf "\t[SKB_DROP_REASON_%s] = \"%s\",\n", $$1, $$1;\
-		}\
-	}\
-	END{ print "};" }' $< > $@
-
-$(obj)/dropreason_str.c: $(srctree)/include/net/dropreason.h
-	$(call cmd,dropreason_str)
-
-$(obj)/dropreason_str.o: $(obj)/dropreason_str.c
diff --git a/net/core/datagram.c b/net/core/datagram.c
index 7255531f63ae..e4ff2db40c98 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -677,7 +677,7 @@ int __zerocopy_sg_from_iter(struct msghdr *msg, struct sock *sk,
 				page_ref_sub(last_head, refs);
 				refs = 0;
 			}
-			skb_fill_page_desc(skb, frag++, head, start, size);
+			skb_fill_page_desc_noacc(skb, frag++, head, start, size);
 		}
 		if (refs)
 			page_ref_sub(last_head, refs);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 84bb5e188d0d..417463da4fac 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -91,7 +91,11 @@ static struct kmem_cache *skbuff_ext_cache __ro_after_init;
 int sysctl_max_skb_frags __read_mostly = MAX_SKB_FRAGS;
 EXPORT_SYMBOL(sysctl_max_skb_frags);
 
-/* The array 'drop_reasons' is auto-generated in dropreason_str.c */
+#undef FN
+#define FN(reason) [SKB_DROP_REASON_##reason] = #reason,
+const char * const drop_reasons[] = {
+	DEFINE_DROP_REASON(FN, FN)
+};
 EXPORT_SYMBOL(drop_reasons);
 
 /**