[media] v4l2-compat-ioctl32: replace pr_warn by pr_debug

Every time compat32 encounters an unknown ioctl it will call pr_warn.
However, that's very irritating since it is perfectly normal that this
happens. For example, applications often try to call an ioctl to see if
it exists, and if that's used with an older kernel where compat32 doesn't
support that ioctl yet, then it starts spamming the kernel log.

So replace pr_warn by pr_debug.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
index 788b31c91330c4a3ae9d36b2b7b2a5f6fb17e50a..fc4326f3ae12f8d7dc24c189730866eafc4cbbef 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
+++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c
@@ -1034,8 +1034,8 @@ long v4l2_compat_ioctl32(struct file *file, unsigned int cmd, unsigned long arg)
                ret = vdev->fops->compat_ioctl32(file, cmd, arg);
 
        if (ret == -ENOIOCTLCMD)
-               pr_warn("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
-                       _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
+               pr_debug("compat_ioctl32: unknown ioctl '%c', dir=%d, #%d (0x%08x)\n",
+                        _IOC_TYPE(cmd), _IOC_DIR(cmd), _IOC_NR(cmd), cmd);
        return ret;
 }
 EXPORT_SYMBOL_GPL(v4l2_compat_ioctl32);