linux-kernel - [PATCH 5/6] habanalabs: print warning when reset is requested

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Message-Id: <20200328085238.3428-5-oded.gabbay@gmail.com>
Date:   Sat, 28 Mar 2020 11:52:37 +0300
From:   Oded Gabbay <oded.gabbay@...il.com>
To:     linux-kernel@...r.kernel.org, oshpigelman@...ana.ai,
        ttayar@...ana.ai
Cc:     gregkh@...uxfoundation.org
Subject: [PATCH 5/6] habanalabs: print warning when reset is requested

When the system administrator asks the driver to soft or hard reset the
device through sysfs, the driver should display a warning in the kernel log
to explain why it suddenly resets the device.

Signed-off-by: Oded Gabbay <oded.gabbay@...il.com>
---
 drivers/misc/habanalabs/sysfs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/misc/habanalabs/sysfs.c b/drivers/misc/habanalabs/sysfs.c
index 4cd622b017b9..e478a191e5f5 100644
--- a/drivers/misc/habanalabs/sysfs.c
+++ b/drivers/misc/habanalabs/sysfs.c
@@ -183,6 +183,8 @@ static ssize_t soft_reset_store(struct device *dev,
 		goto out;
 	}
 
+	dev_warn(hdev->dev, "Soft-Reset requested through sysfs\n");
+
 	hl_device_reset(hdev, false, false);
 
 out:
@@ -204,6 +206,8 @@ static ssize_t hard_reset_store(struct device *dev,
 		goto out;
 	}
 
+	dev_warn(hdev->dev, "Hard-Reset requested through sysfs\n");
+
 	hl_device_reset(hdev, true, false);
 
 out:
-- 
2.17.1