linux-kernel - [PATCH 06/11] habanalabs: revise prints on FD close

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Date:   Tue, 13 Jul 2021 10:52:21 +0300
From:   Oded Gabbay <ogabbay@...nel.org>
To:     linux-kernel@...r.kernel.org
Subject: [PATCH 06/11] habanalabs: revise prints on FD close

The driver quietly handles memory mappings that were not freed so no
need to print a warning about that when user closes the FD.

Accordingly, revise the text that is printed in case the device is
still in use after the user process closed the FD.

Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
 drivers/misc/habanalabs/common/device.c | 4 ++--
 drivers/misc/habanalabs/common/memory.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/habanalabs/common/device.c b/drivers/misc/habanalabs/common/device.c
index b09bdd1d462f..4f76c7a51605 100644
--- a/drivers/misc/habanalabs/common/device.c
+++ b/drivers/misc/habanalabs/common/device.c
@@ -129,8 +129,8 @@ static int hl_device_release(struct inode *inode, struct file *filp)
 	hl_ctx_mgr_fini(hdev, &hpriv->ctx_mgr);
 
 	if (!hl_hpriv_put(hpriv))
-		dev_warn(hdev->dev,
-			"Device is still in use because there are live CS and/or memory mappings\n");
+		dev_notice(hdev->dev,
+			"User process closed FD but device still in use\n");
 
 	hdev->last_open_session_duration_jif =
 		jiffies - hdev->last_successful_open_jif;
diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index a05d98db4857..efc460e9db5d 100644
--- a/drivers/misc/habanalabs/common/memory.c
+++ b/drivers/misc/habanalabs/common/memory.c
@@ -2126,7 +2126,7 @@ void hl_vm_ctx_fini(struct hl_ctx *ctx)
 	 * another side effect error
 	 */
 	if (!hdev->hard_reset_pending && !hash_empty(ctx->mem_hash))
-		dev_notice(hdev->dev,
+		dev_dbg(hdev->dev,
 			"user released device without removing its memory mappings\n");
 
 	hash_for_each_safe(ctx->mem_hash, i, tmp_node, hnode, node) {
-- 
2.25.1