[-hg] Warn user that driver is backported and might not work as expected

Commit Message

Mauro Carvalho Chehab Sept. 17, 2010, 2:55 p.m. UTC

None

Patch

diff -r 60edc4bd92b7 linux/drivers/media/dvb/dvb-core/dvbdev.c
--- a/linux/drivers/media/dvb/dvb-core/dvbdev.c	Sun Jun 27 17:17:06 2010 -0300
+++ b/linux/drivers/media/dvb/dvb-core/dvbdev.c	Fri Sep 17 11:49:02 2010 -0300
@@ -521,6 +521,12 @@ 
 #elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 31)
 	dvb_class->devnode = dvb_devnode;
 #endif
+#ifdef EXPERIMENTAL_TREE
+	printk(KERN_ERR "WARNING: You're using an experimental version of the DVB stack. As the driver\n"
+			"         is backported to an older kernel, it doesn't offer enough quality for\n"
+			"         its usage in production.\n"
+			"         Use it with care.\n");
+#endif
 	return 0;
 
 error:
diff -r 60edc4bd92b7 linux/drivers/media/video/v4l2-dev.c
--- a/linux/drivers/media/video/v4l2-dev.c	Sun Jun 27 17:17:06 2010 -0300
+++ b/linux/drivers/media/video/v4l2-dev.c	Fri Sep 17 11:49:02 2010 -0300
@@ -686,6 +686,12 @@ 
 	int ret;
 
 	printk(KERN_INFO "Linux video capture interface: v2.00\n");
+#ifdef EXPERIMENTAL_TREE
+	printk(KERN_ERR "WARNING: You're using an experimental version of the V4L stack. As the driver\n"
+			"         is backported to an older kernel, it doesn't offer enough quality for\n"
+			"         its usage in production.\n"
+			"         Use it with care.\n");
+#endif
 	ret = register_chrdev_region(dev, VIDEO_NUM_DEVICES, VIDEO_NAME);
 	if (ret < 0) {
 		printk(KERN_WARNING "videodev: unable to get major %d\n",
diff -r 60edc4bd92b7 v4l/compat.h
--- a/v4l/compat.h	Sun Jun 27 17:17:06 2010 -0300
+++ b/v4l/compat.h	Fri Sep 17 11:49:02 2010 -0300
@@ -14,6 +14,8 @@ 
 #define INIT_DELAYED_WORK(a,b,c)	INIT_WORK(a,b,c)
 #endif
 
+#define EXPERIMENTAL_TREE
+
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
 #define usb_buffer_alloc(dev, size, mem_flags, dma) usb_alloc_coherent(dev, size, mem_flags, dma)
 #define usb_buffer_free(dev, size, addr, dma) usb_free_coherent(dev, size, addr, dma)
diff -r 60edc4bd92b7 v4l/scripts/make_kconfig.pl
--- a/v4l/scripts/make_kconfig.pl	Sun Jun 27 17:17:06 2010 -0300
+++ b/v4l/scripts/make_kconfig.pl	Fri Sep 17 11:49:02 2010 -0300
@@ -671,4 +671,13 @@ 
 
 EOF2
 	}
+print << "EOF3";
+WARNING: This is the V4L/DVB backport tree, with experimental drivers
+	 backported to run on legacy kernels from the development tree at:
+		http://git.linuxtv.org/media-tree.git.
+	 It is generally safe to use it for testing a new driver or
+	 feature, but its usage on production environments is risky.
+	 Don't use it at production. You've being warned.
+EOF3
+	sleep 5;
 }