linux-kernel - [PATCH] ieee1394: dv1394: move deprecation message from module init to file open

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Message-ID: <tkrat.27c6433221173763@s5r6.in-berlin.de>
Date:	Tue, 3 Feb 2009 17:54:31 +0100 (CET)
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	linux1394-devel@...ts.sourceforge.net
cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] ieee1394: dv1394: move deprecation message from module init
 to file open

On many Linux installations, the dv1394 driver will be auto-loaded
whenever an AV/C device (e.g. camcorder or audio device) is plugged in.
An irritating message would then appear in the kernel log.

Defer this message to until a dv1394 character device file is actually
used by a program.  Also include the program name in the message and
update the message slightly.

Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
---
 drivers/ieee1394/dv1394.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Index: linux/drivers/ieee1394/dv1394.c
===================================================================
--- linux.orig/drivers/ieee1394/dv1394.c
+++ linux/drivers/ieee1394/dv1394.c
@@ -1823,6 +1823,10 @@ static int dv1394_open(struct inode *ino
 
 #endif
 
+	printk(KERN_INFO "%s: NOTE, the dv1394 interface is unsupported "
+	       "and will not be available in the new firewire driver stack. "
+	       "Try libraw1394 based programs instead.\n", current->comm);
+
 	return 0;
 }
 
@@ -2567,10 +2571,6 @@ static int __init dv1394_init_module(voi
 {
 	int ret;
 
-	printk(KERN_WARNING
-	       "NOTE: The dv1394 driver is unsupported and may be removed in a "
-	       "future Linux release. Use raw1394 instead.\n");
-
 	cdev_init(&dv1394_cdev, &dv1394_fops);
 	dv1394_cdev.owner = THIS_MODULE;
 	ret = cdev_add(&dv1394_cdev, IEEE1394_DV1394_DEV, 16);

-- 
Stefan Richter
-=====-==--= --=- ---==
http://arcgraph.de/sr/

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