From: Oded Gabbay <ogabbay@kernel.org>
Date: Sun, 2 May 2021 09:28:48 +0000 (+0300)
Subject: habanalabs: better error print for pin failure
X-Git-Tag: accepted/tizen/unified/20230118.172025~6891^2~28^2~54
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c07c54e9de32ea8e89e7c2a112c14f59602a402c;p=platform%2Fkernel%2Flinux-rpi.git

habanalabs: better error print for pin failure

Print the user given pointer and error code on failure to get user
pages for easier debugging.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---

diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index 43924e1..a7a8984 100644
--- a/drivers/misc/habanalabs/common/memory.c
+++ b/drivers/misc/habanalabs/common/memory.c
@@ -1612,7 +1612,8 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size,
 
 	if (rc != npages) {
 		dev_err(hdev->dev,
-			"Failed to map host memory, user ptr probably wrong\n");
+			"Failed (%d) to pin host memory with user ptr 0x%llx\n",
+			rc, addr);
 		if (rc < 0)
 			goto destroy_pages;
 		npages = rc;