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[v2,10/26,SRU,U/OEM-5.10] UBUNTU: SAUCE: ath11k: pci: print a warning if firmware crashed

Message ID 20201204152521.197069-11-vicamo.yang@canonical.com
State New
Headers show
Series Support Killer 500s (QCA6390) WLAN/BT | expand

Commit Message

You-Sheng Yang Dec. 4, 2020, 3:25 p.m. UTC 
From: Kalle Valo <kvalo@codeaurora.org>

BugLink: https://bugs.launchpad.net/bugs/1879633

There was no way to detect if the firmware crashed so add a warning.

Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
(cherry picked from commit 23dcef9436560a033703164c4daff9e36e640969
https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git)
Signed-off-by: You-Sheng Yang <vicamo.yang@canonical.com>
---
 drivers/net/wireless/ath/ath11k/mhi.c | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c
index 1e5525e37d58..f14a7c7971f4 100644
--- a/drivers/net/wireless/ath/ath11k/mhi.c
+++ b/drivers/net/wireless/ath/ath11k/mhi.c
@@ -201,6 +201,15 @@  static void ath11k_mhi_op_runtime_put(struct mhi_controller *mhi_cntrl)
 static void ath11k_mhi_op_status_cb(struct mhi_controller *mhi_cntrl,
 				    enum mhi_callback cb)
 {
+	struct ath11k_base *ab = dev_get_drvdata(mhi_cntrl->cntrl_dev);
+
+	switch (cb) {
+	case MHI_CB_SYS_ERROR:
+		ath11k_warn(ab, "firmware crashed: MHI_CB_SYS_ERROR\n");
+		break;
+	default:
+		break;
+	}
 }
 
 static int ath11k_mhi_op_read_reg(struct mhi_controller *mhi_cntrl,