[PATCH ath-current v3] wifi: ath11k: reset ar->num_stations on hardware start

[Baochen Qiang]

On 8/12/2026 10:58 PM, Nicolas Escande wrote:
> When (multiple) hw restart occurs, we end up in a situation where we
> cannot accept new stations / mesh peers. This seems to be the
> 'num_stations' in 'struct ath11k' that did not get reset properly in
> this case. In ath11k_mac_op_start(), it was indeed the only accounting var
> that did not get reset so let's clear it too.
> 
> This avoids problems like those:
> 
> 	[1248828.088023] WARNING: CPU: 0 PID: 12281 at net/mac80211/util.c:1682 ieee80211_reconfig_stations+0x98/0xc0
> 	[1248828.088115] Call trace:
> 	[1248828.088116]  ieee80211_reconfig_stations+0x98/0xc0 (P)
> 	[1248828.088119]  ieee80211_reconfig+0x774/0x1438
> 	[1248828.088123]  ieee80211_restart_work+0x10c/0x178
> 	[1248828.088127]  process_one_work+0x178/0x3c0
> 	[1248828.088130]  worker_thread+0x280/0x440
> 	[1248828.088133]  kthread+0xe0/0xf8
> 	[1248828.088137]  ret_from_fork+0x10/0x20
> 	[1248828.088141] ---[ end trace 0000000000000000 ]---
> 	[1248836.686604] ath11k_pci 0000:04:00.0: refusing to associate station: too many connected already (128)
> 	[1248836.686609] ath11k_pci 0000:04:00.0: Failed to add station: xx:xx:xx:xx:xx:xx for VDEV: 1
> 
> Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.9.0.1-01977-QCAHKSWPL_SILICONZ-1
> 
> Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices")
> Signed-off-by: Nicolas Escande <nico.escande at gmail.com>
Reviewed-by: Baochen Qiang <baochen.qiang at oss.qualcomm.com>