[PATCH 04/12] iwlwifi: don't dump_stack() when we get an unexpected interrupt

From: Luca Coelho <luca@coelho.fi>
To: kvalo@kernel.org
Cc: luca@coelho.fi, linux-wireless@vger.kernel.org
Subject: [PATCH 04/12] iwlwifi: don't dump_stack() when we get an unexpected interrupt
Date: Sat,  5 Feb 2022 11:21:32 +0200	[thread overview]
Message-ID: <iwlwifi.20220205112029.a79e733a12f7.I8189344294222be0589fa43cc70fdf38e3057045@changeid> (raw)
In-Reply-To: <20220205092140.751171-1-luca@coelho.fi>

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

It is yet unclear if the WARNING really points to a real problem,
but for sure the stack dump doesn't help fixing it.
Just use a regular error print instead.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/rx.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index 71db571a42e0..516b2e573730 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -1627,10 +1627,13 @@ irqreturn_t iwl_pcie_irq_rx_msix_handler(int irq, void *dev_id)
 	if (WARN_ON(entry->entry >= trans->num_rx_queues))
 		return IRQ_NONE;
 
-	if (WARN_ONCE(!rxq,
-		      "[%d] Got MSI-X interrupt before we have Rx queues",
-		      entry->entry))
+	if (!rxq) {
+		if (net_ratelimit())
+			IWL_ERR(trans,
+				"[%d] Got MSI-X interrupt before we have Rx queues\n",
+				entry->entry);
 		return IRQ_NONE;
+	}
 
 	lock_map_acquire(&trans->sync_cmd_lockdep_map);
 	IWL_DEBUG_ISR(trans, "[%d] Got interrupt\n", entry->entry);
-- 
2.34.1

