ath11k: fix IRQ affinity warning on shutdown

Make sure to clear the IRQ affinity hint also on shutdown to avoid
triggering a WARN_ON_ONCE() in __free_irq() when stopping MHI while
using a single MSI vector.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3

Fixes: e94b07493da3 ("ath11k: Set IRQ affinity to CPU0 in case of one MSI vector")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220523143258.24818-1-johan+linaro@kernel.org

diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c
index dedf1b8..487a303 100644 (file)
--- a/drivers/net/wireless/ath/ath11k/pci.c
+++ b/drivers/net/wireless/ath/ath11k/pci.c
@@ -920,7 +920,9 @@ qmi_fail:
 static void ath11k_pci_shutdown(struct pci_dev *pdev)
 {
        struct ath11k_base *ab = pci_get_drvdata(pdev);
+       struct ath11k_pci *ab_pci = ath11k_pci_priv(ab);
 
+       ath11k_pci_set_irq_affinity_hint(ab_pci, NULL);
        ath11k_pci_power_down(ab);
 }