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Linville" , Simon Wunderlich , Oleksij Rempel , Kalle Valo , Jeff Johnson , stable@vger.kernel.org Subject: [PATCH ath-next v4 8/8] wifi: ath9k_htc: derive the PHY error filter bits from software state Date: Wed, 16 Sep 2026 20:34:29 +0300 Message-ID: <20260916173429.403889-9-nerijus.bendziunas@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260916173429.403889-1-nerijus.bendziunas@gmail.com> References: <20260916173429.403889-1-nerijus.bendziunas@gmail.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ath9k_htc_calcrxfilter() reads the RX filter back from the device to preserve the PHY error bits a spectral scan may have set. When that WMI read times out it returns all ones, and the recalculated filter forwards every PHY error to the host with no scan running. Set the two bits from the spectral mode instead. A mode written to spectral_scan_ctl now sets them at the next filter update, not only at the trigger. Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.") Assisted-by: LLM Signed-off-by: Nerijus Bendžiūnas --- drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c index 23d1ef2407a4..1a051d23cf2a 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c @@ -868,14 +868,14 @@ int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv) */ u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv) { -#define RX_FILTER_PRESERVE (ATH9K_RX_FILTER_PHYERR | ATH9K_RX_FILTER_PHYRADAR) - struct ath_hw *ah = priv->ah; u32 rfilt; - rfilt = (ath9k_hw_getrxfilter(ah) & RX_FILTER_PRESERVE) - | ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST - | ATH9K_RX_FILTER_MCAST; + rfilt = ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST | + ATH9K_RX_FILTER_MCAST; + + if (priv->spec_priv.spectral_mode != SPECTRAL_DISABLED) + rfilt |= ATH9K_RX_FILTER_PHYRADAR | ATH9K_RX_FILTER_PHYERR; if (priv->rxfilter & FIF_PROBE_REQ) rfilt |= ATH9K_RX_FILTER_PROBEREQ; @@ -906,8 +906,6 @@ u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv) rfilt |= ATH9K_RX_FILTER_MCAST_BCAST_ALL; return rfilt; - -#undef RX_FILTER_PRESERVE } /* -- 2.55.0