From 14c98e1bdf3fe78c9465f593ee4b018bbb535aea Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@kernel.org>
Date: Thu, 20 Jul 2017 13:13:41 -0700
Subject: [PATCH 3/5] firmware: enable a debug print for batched requests
Git-commit: 30172bead80e089072c6f2d00e68831c51ebbc19
Patch-mainline: v4.14-rc1
References: FATE#323821

Otherwise there is no easy way this actually happened.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
---
 drivers/base/firmware_class.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index dc2c1c8f4e4c..f9ed81c866c3 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -301,6 +301,7 @@ static struct firmware_buf *__fw_lookup_buf(const char *fw_name)
 	return NULL;
 }
 
+/* Returns 1 for batching firmware requests with the same name */
 static int fw_lookup_and_allocate_buf(const char *fw_name,
 				      struct firmware_cache *fwc,
 				      struct firmware_buf **buf, void *dbuf,
@@ -314,6 +315,7 @@ static int fw_lookup_and_allocate_buf(const char *fw_name,
 		kref_get(&tmp->ref);
 		spin_unlock(&fwc->lock);
 		*buf = tmp;
+		pr_debug("batched request - sharing the same struct firmware_buf and lookup for multiple requests\n");
 		return 1;
 	}
 	tmp = __allocate_fw_buf(fw_name, fwc, dbuf, size);
-- 
2.14.0