This is a note to let you know that I've just added the patch titled
Revert "wifi: cfg80211: fix CQM for non-range use"
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-wifi-cfg80211-fix-cqm-for-non-range-use.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3389e1b4563f26f58f783d2f7d2f3ee3cf4eee4b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 11 Dec 2023 10:16:15 +0100
Subject: Revert "wifi: cfg80211: fix CQM for non-range use"
From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
This reverts commit 307a6525c82a5a1bc5364711ece92c2d2487e1ad which is
commit 7e7efdda6adb385fbdfd6f819d76bc68c923c394 upstream.
It needed to have commit 076fc8775daf ("wifi: cfg80211: remove wdev
mutex") applied to properly work, otherwise regressions happen.
Link: https://lore.kernel.org/r/e374bb16-5b13-44cc-b11a-2f4eefb1ecf5@xxxxxxxxxxx
Link: https://lore.kernel.org/r/87sf4belmm.fsf@xxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20231210213930.61378-1-leo@xxxxxxxxx
Reported-by: Léo Lam <leo@xxxxxxxxx>
Reported-by: Sven Joachim <svenjoac@xxxxxx>
Reported-by: Philip Müller <philm@xxxxxxxxxxx>
Cc: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/wireless/core.h | 1
net/wireless/nl80211.c | 50 ++++++++++++++++++-------------------------------
2 files changed, 19 insertions(+), 32 deletions(-)
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -297,7 +297,6 @@ struct cfg80211_cqm_config {
u32 rssi_hyst;
s32 last_rssi_event_value;
enum nl80211_cqm_rssi_threshold_event last_rssi_event_type;
- bool use_range_api;
int n_rssi_thresholds;
s32 rssi_thresholds[];
};
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -12574,6 +12574,10 @@ static int cfg80211_cqm_rssi_update(stru
int i, n, low_index;
int err;
+ /* RSSI reporting disabled? */
+ if (!cqm_config)
+ return rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
+
/*
* Obtain current RSSI value if possible, if not and no RSSI threshold
* event has been received yet, we should receive an event after a
@@ -12648,6 +12652,18 @@ static int nl80211_set_cqm_rssi(struct g
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
return -EOPNOTSUPP;
+ if (n_thresholds <= 1 && rdev->ops->set_cqm_rssi_config) {
+ if (n_thresholds == 0 || thresholds[0] == 0) /* Disabling */
+ return rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
+
+ return rdev_set_cqm_rssi_config(rdev, dev,
+ thresholds[0], hysteresis);
+ }
+
+ if (!wiphy_ext_feature_isset(&rdev->wiphy,
+ NL80211_EXT_FEATURE_CQM_RSSI_LIST))
+ return -EOPNOTSUPP;
+
if (n_thresholds == 1 && thresholds[0] == 0) /* Disabling */
n_thresholds = 0;
@@ -12655,20 +12671,6 @@ static int nl80211_set_cqm_rssi(struct g
old = rcu_dereference_protected(wdev->cqm_config,
lockdep_is_held(&wdev->mtx));
- /* if already disabled just succeed */
- if (!n_thresholds && !old)
- return 0;
-
- if (n_thresholds > 1) {
- if (!wiphy_ext_feature_isset(&rdev->wiphy,
- NL80211_EXT_FEATURE_CQM_RSSI_LIST) ||
- !rdev->ops->set_cqm_rssi_range_config)
- return -EOPNOTSUPP;
- } else {
- if (!rdev->ops->set_cqm_rssi_config)
- return -EOPNOTSUPP;
- }
-
if (n_thresholds) {
cqm_config = kzalloc(struct_size(cqm_config, rssi_thresholds,
n_thresholds),
@@ -12683,26 +12685,13 @@ static int nl80211_set_cqm_rssi(struct g
memcpy(cqm_config->rssi_thresholds, thresholds,
flex_array_size(cqm_config, rssi_thresholds,
n_thresholds));
- cqm_config->use_range_api = n_thresholds > 1 ||
- !rdev->ops->set_cqm_rssi_config;
rcu_assign_pointer(wdev->cqm_config, cqm_config);
-
- if (cqm_config->use_range_api)
- err = cfg80211_cqm_rssi_update(rdev, dev, cqm_config);
- else
- err = rdev_set_cqm_rssi_config(rdev, dev,
- thresholds[0],
- hysteresis);
} else {
RCU_INIT_POINTER(wdev->cqm_config, NULL);
- /* if enabled as range also disable via range */
- if (old->use_range_api)
- err = rdev_set_cqm_rssi_range_config(rdev, dev, 0, 0);
- else
- err = rdev_set_cqm_rssi_config(rdev, dev, 0, 0);
}
+ err = cfg80211_cqm_rssi_update(rdev, dev, cqm_config);
if (err) {
rcu_assign_pointer(wdev->cqm_config, old);
kfree_rcu(cqm_config, rcu_head);
@@ -18769,11 +18758,10 @@ void cfg80211_cqm_rssi_notify_work(struc
wdev_lock(wdev);
cqm_config = rcu_dereference_protected(wdev->cqm_config,
lockdep_is_held(&wdev->mtx));
- if (!cqm_config)
+ if (!wdev->cqm_config)
goto unlock;
- if (cqm_config->use_range_api)
- cfg80211_cqm_rssi_update(rdev, wdev->netdev, cqm_config);
+ cfg80211_cqm_rssi_update(rdev, wdev->netdev, cqm_config);
rssi_level = cqm_config->last_rssi_event_value;
rssi_event = cqm_config->last_rssi_event_type;
Patches currently in stable-queue which might be from gregkh@xxxxxxxxxxxxxxxxxxx are
queue-6.1/rethook-use-__rcu-pointer-for-rethook-handler.patch
queue-6.1/x86-entry-convert-int-0x80-emulation-to-idtentry.patch
queue-6.1/r8169-fix-rtl8125b-pause-frames-blasting-when-suspended.patch
queue-6.1/tracing-fix-a-possible-race-when-disabling-buffered-events.patch
queue-6.1/regmap-fix-bogus-error-on-regcache_sync-success.patch
queue-6.1/alsa-hda-realtek-add-framework-laptop-16-to-quirks.patch
queue-6.1/alsa-pcm-fix-out-of-bounds-in-snd_pcm_state_names.patch
queue-6.1/cgroup_freezer-cgroup_freezing-check-if-not-frozen.patch
queue-6.1/hugetlb-fix-null-ptr-deref-in-hugetlb_vma_lock_write.patch
queue-6.1/alsa-usb-audio-add-pioneer-djm-450-mixer-controls.patch
queue-6.1/arm64-dts-mediatek-mt7622-fix-memory-node-warning-check.patch
queue-6.1/x86-coco-disable-32-bit-emulation-by-default-on-tdx-and-sev.patch
queue-6.1/tracing-fix-incomplete-locking-when-disabling-buffered-events.patch
queue-6.1/x86-introduce-ia32_enabled.patch
queue-6.1/ring-buffer-test-last-update-in-32bit-version-of-__rb_time_read.patch
queue-6.1/platform-surface-aggregator-fix-recv_buf-return-value.patch
queue-6.1/x86-entry-do-not-allow-external-0x80-interrupts.patch
queue-6.1/arm64-dts-mediatek-mt8183-fix-unit-address-for-scp-reserved-memory.patch
queue-6.1/arm64-dts-mediatek-cherry-fix-interrupt-cells-for-mt6360-on-i2c7.patch
queue-6.1/alsa-hda-realtek-enable-headset-on-lenovo-m90-gen5.patch
queue-6.1/x86-tdx-allow-32-bit-emulation-by-default.patch
queue-6.1/nvme-pci-add-sleep-quirk-for-kingston-drives.patch
queue-6.1/asoc-amd-yc-fix-non-functional-mic-on-asus-e1504fa.patch
queue-6.1/io_uring-af_unix-disable-sending-io_uring-over-sockets.patch
queue-6.1/binder-fix-memory-leaks-of-spam-and-pending-work.patch
queue-6.1/tracing-disable-snapshot-buffer-when-stopping-instance-tracers.patch
queue-6.1/tracing-always-update-snapshot-buffer-size.patch
queue-6.1/iommu-avoid-more-races-around-device-probe.patch
queue-6.1/misc-mei-client.c-return-negative-error-code-in-mei_.patch
queue-6.1/md-raid6-use-valid-sector-values-to-determine-if-an-i-o-should-wait-on-the-reshape.patch
queue-6.1/arm64-dts-mediatek-mt8183-kukui-jacuzzi-fix-dsi-unnecessary-cells-properties.patch
queue-6.1/alsa-hda-realtek-add-new-framework-laptop-to-quirks.patch
queue-6.1/nilfs2-prevent-warning-in-nilfs_sufile_set_segment_usage.patch
queue-6.1/mm-fix-oops-when-filemap_map_pmd-without-prealloc_pte.patch
queue-6.1/kprobes-consistent-rcu-api-usage-for-kretprobe-holder.patch
queue-6.1/misc-mei-client.c-fix-problem-of-return-eoverflow-in.patch
queue-6.1/arm64-dts-mediatek-mt8183-move-thermal-zones-to-the-root-node.patch
queue-6.1/powercap-dtpm-fix-missing-cpufreq_cpu_put-calls.patch
queue-6.1/arm64-dts-mediatek-mt8173-evb-fix-regulator-fixed-node-names.patch
queue-6.1/revert-wifi-cfg80211-fix-cqm-for-non-range-use.patch
queue-6.1/arm64-dts-imx8mq-drop-usb3-resume-missing-cas-from-u.patch
queue-6.1/packet-move-reference-count-in-packet_sock-to-atomic_long_t.patch
queue-6.1/checkstack-fix-printed-address.patch
queue-6.1/nilfs2-fix-missing-error-check-for-sb_set_blocksize-call.patch
queue-6.1/arm64-dts-mediatek-mt8195-fix-pm-suspend-resume-with-venc-clocks.patch
queue-6.1/arm64-dts-mediatek-mt8183-evb-fix-unit_address_vs_reg-warning-on-ntc.patch
queue-6.1/io_uring-fix-mutex_unlock-with-unreferenced-ctx.patch
