5.15-stable review patch. If anyone has any objections, please let me know.
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From: Caleb Connolly caleb.connolly@linaro.org
[ Upstream commit 1650d32b92b01db03a1a95d69ee74fcbc34d4b00 ]
In ath10k_snoc_hif_stop() we skip disabling the IRQs in the crash recovery flow, but we still unconditionally call enable again in ath10k_snoc_hif_start().
We can't check the ATH10K_FLAG_CRASH_FLUSH bit since it is cleared before hif_start() is called, so instead check the ATH10K_SNOC_FLAG_RECOVERY flag and skip enabling the IRQs during crash recovery.
This fixes unbalanced IRQ enable splats that happen after recovering from a crash.
Fixes: 0e622f67e041 ("ath10k: add support for WCN3990 firmware crash recovery") Signed-off-by: Caleb Connolly caleb.connolly@linaro.org Tested-by: Loic Poulain loic.poulain@oss.qualcomm.com Link: https://patch.msgid.link/20250318205043.1043148-1-caleb.connolly@linaro.org Signed-off-by: Jeff Johnson jeff.johnson@oss.qualcomm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath10k/snoc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath10k/snoc.c b/drivers/net/wireless/ath/ath10k/snoc.c index 439df8a404d86..b091e5187dbe5 100644 --- a/drivers/net/wireless/ath/ath10k/snoc.c +++ b/drivers/net/wireless/ath/ath10k/snoc.c @@ -936,7 +936,9 @@ static int ath10k_snoc_hif_start(struct ath10k *ar) bitmap_clear(ar_snoc->pending_ce_irqs, 0, CE_COUNT_MAX);
ath10k_core_napi_enable(ar); - ath10k_snoc_irq_enable(ar); + /* IRQs are left enabled when we restart due to a firmware crash */ + if (!test_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags)) + ath10k_snoc_irq_enable(ar); ath10k_snoc_rx_post(ar);
clear_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags);