Merge tag 'net-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netHEADmaster

Pull networking fixes from Paolo Abeni:
 "Including fixes from WiFi, bluetooth and netfilter.

  No known new regressions outstanding.

  Current release - regressions:

   - wifi: mt76: do not increase mcu skb refcount if retry is not
     supported

  Current release - new code bugs:

   - wifi:
      - rtw88: fix the RX aggregation in USB 3 mode
      - mac80211: fix memory corruption bug in struct ieee80211_chanctx

  Previous releases - regressions:

   - sched:
      - stop qdisc_tree_reduce_backlog on TC_H_ROOT
      - sch_api: fix xa_insert() error path in tcf_block_get_ext()

   - wifi:
      - revert "wifi: iwlwifi: remove retry loops in start"
      - cfg80211: clear wdev->cqm_config pointer on free

   - netfilter: fix potential crash in nf_send_reset6()

   - ip_tunnel: fix suspicious RCU usage warning in ip_tunnel_find()

   - bluetooth: fix null-ptr-deref in hci_read_supported_codecs

   - eth: mlxsw: add missing verification before pushing Tx header

   - eth: hns3: fixed hclge_fetch_pf_reg accesses bar space out of
     bounds issue

  Previous releases - always broken:

   - wifi: mac80211: do not pass a stopped vif to the driver in
     .get_txpower

   - netfilter: sanitize offset and length before calling skb_checksum()

   - core:
      - fix crash when config small gso_max_size/gso_ipv4_max_size
      - skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension

   - mptcp: protect sched with rcu_read_lock

   - eth: ice: fix crash on probe for DPLL enabled E810 LOM

   - eth: macsec: fix use-after-free while sending the offloading packet

   - eth: stmmac: fix unbalanced DMA map/unmap for non-paged SKB data

   - eth: hns3: fix kernel crash when 1588 is sent on HIP08 devices

   - eth: mtk_wed: fix path of MT7988 WO firmware"

* tag 'net-6.12-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (70 commits)
  net: hns3: fix kernel crash when 1588 is sent on HIP08 devices
  net: hns3: fixed hclge_fetch_pf_reg accesses bar space out of bounds issue
  net: hns3: initialize reset_timer before hclgevf_misc_irq_init()
  net: hns3: don't auto enable misc vector
  net: hns3: Resolved the issue that the debugfs query result is inconsistent.
  net: hns3: fix missing features due to dev->features configuration too early
  net: hns3: fixed reset failure issues caused by the incorrect reset type
  net: hns3: add sync command to sync io-pgtable
  net: hns3: default enable tx bounce buffer when smmu enabled
  netfilter: nft_payload: sanitize offset and length before calling skb_checksum()
  net: ethernet: mtk_wed: fix path of MT7988 WO firmware
  selftests: forwarding: Add IPv6 GRE remote change tests
  mlxsw: spectrum_ipip: Fix memory leak when changing remote IPv6 address
  mlxsw: pci: Sync Rx buffers for device
  mlxsw: pci: Sync Rx buffers for CPU
  mlxsw: spectrum_ptp: Add missing verification before pushing Tx header
  net: skip offload for NETIF_F_IPV6_CSUM if ipv6 header contains extension
  Bluetooth: hci: fix null-ptr-deref in hci_read_supported_codecs
  netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
  netfilter: Fix use-after-free in get_info()
  ...

3 files changed, 69 insertions, 20 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 69ec1eb41a09..941dc62f3027 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -6130,6 +6130,50 @@ void wiphy_delayed_work_flush(struct wiphy *wiphy,
 			      struct wiphy_delayed_work *dwork);
 
 /**
+ * wiphy_delayed_work_pending - Find out whether a wiphy delayable
+ * work item is currently pending.
+ *
+ * @wiphy: the wiphy, for debug purposes
+ * @dwork: the delayed work in question
+ *
+ * Return: true if timer is pending, false otherwise
+ *
+ * How wiphy_delayed_work_queue() works is by setting a timer which
+ * when it expires calls wiphy_work_queue() to queue the wiphy work.
+ * Because wiphy_delayed_work_queue() uses mod_timer(), if it is
+ * called twice and the second call happens before the first call
+ * deadline, the work will rescheduled for the second deadline and
+ * won't run before that.
+ *
+ * wiphy_delayed_work_pending() can be used to detect if calling
+ * wiphy_work_delayed_work_queue() would start a new work schedule
+ * or delayed a previous one. As seen below it cannot be used to
+ * detect precisely if the work has finished to execute nor if it
+ * is currently executing.
+ *
+ *      CPU0                                CPU1
+ * wiphy_delayed_work_queue(wk)
+ *  mod_timer(wk->timer)
+ *                                     wiphy_delayed_work_pending(wk) -> true
+ *
+ * [...]
+ * expire_timers(wk->timer)
+ *  detach_timer(wk->timer)
+ *                                     wiphy_delayed_work_pending(wk) -> false
+ *  wk->timer->function()                          |
+ *   wiphy_work_queue(wk)                          | delayed work pending
+ *    list_add_tail()                              | returns false but
+ *    queue_work(cfg80211_wiphy_work)              | wk->func() has not
+ *                                                 | been run yet
+ * [...]                                           |
+ *  cfg80211_wiphy_work()                          |
+ *   wk->func()                                    V
+ *
+ */
+bool wiphy_delayed_work_pending(struct wiphy *wiphy,
+				struct wiphy_delayed_work *dwork);
+
+/**
  * enum ieee80211_ap_reg_power - regulatory power for an Access Point
  *
  * @IEEE80211_REG_UNSET_AP: Access Point has no regulatory power mode
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index 02fbc036f34e..813e163ce27c 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -24,25 +24,27 @@
  * struct ieee80211_radiotap_header - base radiotap header
  */
 struct ieee80211_radiotap_header {
-	/**
-	 * @it_version: radiotap version, always 0
-	 */
-	uint8_t it_version;
-
-	/**
-	 * @it_pad: padding (or alignment)
-	 */
-	uint8_t it_pad;
-
-	/**
-	 * @it_len: overall radiotap header length
-	 */
-	__le16 it_len;
-
-	/**
-	 * @it_present: (first) present word
-	 */
-	__le32 it_present;
+	__struct_group(ieee80211_radiotap_header_fixed, hdr, __packed,
+		/**
+		 * @it_version: radiotap version, always 0
+		 */
+		uint8_t it_version;
+
+		/**
+		 * @it_pad: padding (or alignment)
+		 */
+		uint8_t it_pad;
+
+		/**
+		 * @it_len: overall radiotap header length
+		 */
+		__le16 it_len;
+
+		/**
+		 * @it_present: (first) present word
+		 */
+		__le32 it_present;
+	);
 
 	/**
 	 * @it_optional: all remaining presence bitmaps
@@ -50,6 +52,9 @@ struct ieee80211_radiotap_header {
 	__le32 it_optional[];
 } __packed;
 
+static_assert(offsetof(struct ieee80211_radiotap_header, it_optional) == sizeof(struct ieee80211_radiotap_header_fixed),
+	      "struct member likely outside of __struct_group()");
+
 /* version is always 0 */
 #define PKTHDR_RADIOTAP_VERSION	0
 
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 6194fbb564c6..6a070478254d 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -354,7 +354,7 @@ static inline void ip_tunnel_init_flow(struct flowi4 *fl4,
 	memset(fl4, 0, sizeof(*fl4));
 
 	if (oif) {
-		fl4->flowi4_l3mdev = l3mdev_master_upper_ifindex_by_index_rcu(net, oif);
+		fl4->flowi4_l3mdev = l3mdev_master_upper_ifindex_by_index(net, oif);
 		/* Legacy VRF/l3mdev use case */
 		fl4->flowi4_oif = fl4->flowi4_l3mdev ? 0 : oif;
 	}