From: Johan Hovold johan+linaro@kernel.org
[ Upstream commit 3bd0c69653ac636eae8872aacdcd4156f772f928 ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath11k/pci.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index 8a3ff12057e8..e2382c8595b6 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -1566,7 +1566,9 @@ static void ath11k_pci_remove(struct pci_dev *pdev) 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); }