patches/driver/bes2600/*-danctnix: reconstruct from cleanups (closes #29)

Replaces the 13 broken DKMS-path -danctnix mirrors from PR #17 + adds
9 new series-dirs for the c-stack patches that were never split
(Patches A/B/C-v3/F/D/E/C2/G/H) + retires the cumulative-c5x-danctnix
single-file interim from fleet/ohm.yaml.

Mechanism:
  cd marfrit/bes2600-dkms-mobian
  git format-patch fe73571..cleanups --no-merges -o /tmp/cleanups/
  git format-patch cleanups..bes2600/bh-c-fossil-cleanup --no-merges -o /tmp/h/
  for each commit: route to series-dir, sed-rewrite
                   a/bes2600/foo.c -> a/drivers/staging/bes2600/foo.c

The 29 cleanups commits + 1 Patch H commit map to 25 series-dirs (a
few series-dirs get multiple commits: lmac-recover gets c5.2 + c5.2.1
as 0001+0002; cw1200-fix-backports gets F3+F2+F1 as 0001-0003;
factory-series gets request_firmware + STANDARD_FACTORY_EFUSE_FLAG
as 0001+0002).

fleet/ohm.yaml apply order matches cleanups commit chronology, which
is what produced the working c5x interim. cumulative.patch from
ka-promote ohm now has 32 resolved patches (29 cleanups + 1 Patch H
+ scan-filter-5ghz + xor-neon SCS + besser#18-fix), 276 079 bytes,
b2sum 7418db5ddf8fe938b130bc9d0e9f7dc9060f3a13703cd50757835ac43140a13...

Apply order in cleanups + bh-c-fossil-cleanup:
  1   factory-series                       (c1 + factory-no-efuse-flag)
  3   factory-thread-dev
  4   pm-gate-on-handshake
  5   remove-chardev-user-interface
  6   enable-testmode
  7   tx-sdio-dma-oob-danctnix             (was 'staging-prep-series')
  8   factory-drop-kernel-write-danctnix
  9   drop-dpd-file-paths-danctnix
  10  drop-orphan-file-io-danctnix
  11  pm-timeout-silence-danctnix
  12  scan-defer-on-reject-danctnix        (c5.1)
  13  scan-defer-backoff-tune-danctnix     (c5.1.1)
  14  lmac-recover-via-mmc-hw-reset-danctnix  (c5.2 + c5.2.1)
  16  pm-state-resync-danctnix             (c6.1)
  17  pm-wake-consume-state-danctnix       (c6.2)
  18  pm-detect-firmware-unsupported-danctnix (c7)
  19  decrypt-storm-fast-recover-danctnix  (Patch A)
  20  connection-loss-fast-recover-danctnix (Patch B)
  21  cw1200-fix-backports-danctnix        (Patches F3 + F2 + F1)
  24  sdio-rx-no-relay-danctnix            (Patch C v3)
  25  license-spdx-restore-attribution-danctnix (Patch G)
  26  ba-lock-atomic-danctnix              (Patch D)
  27  ps-state-lock-skip-pm-disabled-danctnix (Patch E)
  28  rx-list-batch-delivery-danctnix      (Patch C2)
  29  bh-c-fossil-cleanup-danctnix         (Patch H)
  30  scan-filter-5ghz-danctnix            (besser#1)
  31  arch/arm64/xor-neon-...              (GCC 15 SCS)
  32  queue-pending-record-lock-bh-danctnix (besser#18)

Verification: pkgrel=6 build from this manifest in progress; if
srcversion == 26B0003FE9F2B05DCE838C4 (pkgrel=5's), source-tree is
byte-equivalent to the c5x interim + scan-filter + besser#18 stack
that's currently running on ohm.

Refs: #17 (the broken mirror), #28 (the interim PR that landed
cumulative-c5x), #31 (ka-promote trailer normalisation followup).
This commit is contained in:
2026-05-19 06:41:37 +02:00
parent 3ee0ef7d86
commit 8b356aa11f
30 changed files with 4026 additions and 153 deletions
@@ -0,0 +1,157 @@
From 0ec58c0ad539e1e8d347b5527ce66cf847782338 Mon Sep 17 00:00:00 2001
From: Markus Fritsche <fritsche.markus@gmail.com>
Date: Fri, 8 May 2026 06:40:00 +0200
Subject: [PATCH 29/29] =?UTF-8?q?bes2600:=20Patch=20C2=20=E2=80=94=20repla?=
=?UTF-8?q?ce=20ieee80211=5Frx=5Firqsafe=20with=20ieee80211=5Frx=5Fni?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Per Phase 4 plan PR #14 + kerneldoc audit (Task #19). Six call sites
deferred per-RX-frame mac80211 dispatch via tasklet; replace with the
synchronous-from-process-context API ieee80211_rx_ni() which does its
own local_bh_disable wrap.
Why _ni and not _list:
Phase 4 plan originally targeted ieee80211_rx_list for batch
delivery. Mining mt76 mainline (the only driver using _list)
showed the canonical pattern requires threading a struct list_head
through the per-frame call chain. bes2600s WSM dispatcher
(wsm_handle_rx -> bes2600_rx_cb / wsm.c beacon path) sits between
the bh threads SDIO read and the mac80211 hand-off; threading a
list_head through the dispatcher is a non-trivial refactor.
ieee80211_rx_ni() is the simpler drop-in: no list management, still
removes the tasklet hop. Per-call local_bh_disable cost is trivial
vs the saved tasklet schedule. Future refactor can revisit _list
if measurements warrant.
Sites converted:
- ap.c:96 (bes2600_sta_add link-id rx_queue drain on AP-mode
STA add). Was inside spin_lock_bh(&ps_state_lock);
refactored to splice the queue under the lock then
deliver after unlock — _ni runs the synchronous
mac80211 RX path inline, would otherwise hold the
lock across mac80211 dispatch. splice via
skb_queue_splice_init into a local sk_buff_head.
- sta.c:1487 (deauth-frame inject in inactivity-event handler).
Not under any lock; direct conversion.
- txrx.c:1960 (early-data + pm_unsupported branch from Patch E).
- txrx.c:1967 (early-data + LINK_SOFT-not-set branch).
- txrx.c:1971 (normal RX path in bes2600_rx_cb).
- wsm.c:2415 (beacon delivery in scan-complete WSM handler).
beacon SKB ownership is preserved by the existing
skb_copy(beacon, GFP_ATOMIC) -> beacon_bkp pattern;
no lifecycle change needed.
Mixing constraint (kerneldoc include/net/mac80211.h:5399-5430):
ieee80211_rx_ni() cannot mix with ieee80211_rx_irqsafe() for a
single hardware. All 6 sites convert atomically; no mixed state.
Build verified clean on ohm sandbox: srcversion 619A51E61BF5479AAC146E6.
Predicted Phase 7 delta: +5-15% over v3+D+E baseline (2.35 MB/s mean
on v3 alone; D+E single-rep was 3.22 MB/s). Modest improvement
expected from removing the tasklet schedule per RX frame. Smaller
deltas would still be a net win for upstream-cleanliness — the
kernel.org submission story benefits from not using _irqsafe from
process context.
---
bes2600/ap.c | 15 +++++++++++++--
bes2600/sta.c | 2 +-
bes2600/txrx.c | 6 +++---
bes2600/wsm.c | 2 +-
4 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/bes2600/ap.c b/drivers/staging/bes2600/ap.c
index 0a23790..6d4428c 100644
--- a/drivers/staging/bes2600/ap.c
+++ b/drivers/staging/bes2600/ap.c
@@ -62,8 +62,11 @@ int bes2600_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct bes2600_vif *priv = cw12xx_get_vif_from_ieee80211(vif);
struct bes2600_link_entry *entry;
struct sk_buff *skb;
+ struct sk_buff_head local_drain;
struct bes2600_common *hw_priv = hw->priv;
+ __skb_queue_head_init(&local_drain);
+
#ifdef P2P_MULTIVIF
WARN_ON(priv->if_id == CW12XX_GENERIC_IF_ID);
#endif
@@ -92,9 +95,17 @@ int bes2600_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
priv->sta_asleep_mask |= BIT(sta_priv->link_id);
entry->status = BES2600_LINK_HARD;
- while ((skb = skb_dequeue(&entry->rx_queue)))
- ieee80211_rx_irqsafe(priv->hw, skb);
+ /*
+ * Patch C2: splice the rx_queue out under the lock then deliver
+ * after unlock. ieee80211_rx_ni() runs the mac80211 RX path
+ * synchronously (formerly ieee80211_rx_irqsafe deferred to a
+ * tasklet); calling it from inside spin_lock_bh would hold the
+ * lock across mac80211's full RX dispatch.
+ */
+ skb_queue_splice_init(&entry->rx_queue, &local_drain);
spin_unlock_bh(&priv->ps_state_lock);
+ while ((skb = __skb_dequeue(&local_drain)))
+ ieee80211_rx_ni(priv->hw, skb);
#ifdef AP_AGGREGATE_FW_FIX
hw_priv->connected_sta_cnt++;
if(hw_priv->connected_sta_cnt>1) {
diff --git a/drivers/staging/bes2600/sta.c b/drivers/staging/bes2600/sta.c
index 7caeb4b..e64841a 100644
--- a/drivers/staging/bes2600/sta.c
+++ b/drivers/staging/bes2600/sta.c
@@ -1484,7 +1484,7 @@ void bes2600_event_handler(struct work_struct *work)
IEEE80211_STYPE_DEAUTH | IEEE80211_FCTL_TODS);
deauth->u.deauth.reason_code = WLAN_REASON_DEAUTH_LEAVING;
deauth->seq_ctrl = 0;
- ieee80211_rx_irqsafe(priv->hw, skb);
+ ieee80211_rx_ni(priv->hw, skb);
bes_devel(" Inactivity Deauth Frame sent for MAC SA %pM \t and DA %pM\n", deauth->sa, deauth->da);
queue_work(priv->hw_priv->workqueue, &priv->set_tim_work);
break;
diff --git a/drivers/staging/bes2600/txrx.c b/drivers/staging/bes2600/txrx.c
index bf17777..de521a3 100644
--- a/drivers/staging/bes2600/txrx.c
+++ b/drivers/staging/bes2600/txrx.c
@@ -1957,18 +1957,18 @@ void bes2600_rx_cb(struct bes2600_vif *priv,
* path is taken.
*/
if (hw_priv->bes_power.pm_unsupported) {
- ieee80211_rx_irqsafe(priv->hw, skb);
+ ieee80211_rx_ni(priv->hw, skb);
} else {
spin_lock_bh(&priv->ps_state_lock);
/* Double-check status with lock held */
if (entry->status == BES2600_LINK_SOFT)
skb_queue_tail(&entry->rx_queue, skb);
else
- ieee80211_rx_irqsafe(priv->hw, skb);
+ ieee80211_rx_ni(priv->hw, skb);
spin_unlock_bh(&priv->ps_state_lock);
}
} else {
- ieee80211_rx_irqsafe(priv->hw, skb);
+ ieee80211_rx_ni(priv->hw, skb);
}
*skb_p = NULL;
diff --git a/drivers/staging/bes2600/wsm.c b/drivers/staging/bes2600/wsm.c
index 908c965..2424181 100644
--- a/drivers/staging/bes2600/wsm.c
+++ b/drivers/staging/bes2600/wsm.c
@@ -2412,7 +2412,7 @@ int wsm_handle_rx(struct bes2600_common *hw_priv, int id,
if (!hw_priv->beacon_bkp)
hw_priv->beacon_bkp = \
skb_copy(hw_priv->beacon, GFP_ATOMIC);
- ieee80211_rx_irqsafe(hw_priv->hw, hw_priv->beacon);
+ ieee80211_rx_ni(hw_priv->hw, hw_priv->beacon);
hw_priv->beacon = hw_priv->beacon_bkp;
hw_priv->beacon_bkp = NULL;
--
2.54.0