Re: FAILED: patch "[PATCH] [media] rc: raw decoder for keymap protocol is not loaded on" failed to apply to 4.10-stable tree

[Sean Young <sean@mess.org>]

On Wed, Mar 15, 2017 at 03:30:50PM +0800, gregkh@linuxfoundation.org wrote:
> 
> The patch below does not apply to the 4.10-stable tree.
> If someone wants it applied there, or to any other stable or longterm
> tree, then please email the backport, including the original git commit
> id to <stable@vger.kernel.org>.
> 
> thanks,
> 
> greg k-h
> 
> ------------------ original commit in Linus's tree ------------------
> 
> >From 413808685dd7c9b54bbc5af79da2eaddd0fc3cb2 Mon Sep 17 00:00:00 2001
> From: Sean Young <sean@mess.org>
> Date: Wed, 22 Feb 2017 18:48:01 -0300
> Subject: [PATCH] [media] rc: raw decoder for keymap protocol is not loaded on
>  register
> 
> When the protocol is set via the sysfs protocols attribute, the
> decoder is loaded. However, when it is not when a device is first
> plugged in or registered.
> 
> Fixes: acc1c3c ("[media] media: rc: load decoder modules on-demand")
> 
> Signed-off-by: Sean Young <sean@mess.org>
> Cc: <stable@vger.kernel.org> # v4.5+
> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
> 

Backported to v4.10.3 and tested:

>From 1178b692ec0533a01df895d892c93c1506fa013b Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Wed, 15 Mar 2017 10:51:43 +0000
Subject: [PATCH] [media] rc: raw decoder for keymap protocol is not loaded on
 register

When the protocol is set via the sysfs protocols attribute, the
decoder is loaded. However, when it is not when a device is first
plugged in or registered.

Fixes: acc1c3c ("[media] media: rc: load decoder modules on-demand")

Signed-off-by: Sean Young <sean@mess.org>
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---
 drivers/media/rc/rc-main.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index dedaf38..9a397da 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -1441,6 +1441,7 @@ int rc_register_device(struct rc_dev *dev)
 	int attr = 0;
 	int minor;
 	int rc;
+	u64 rc_type;
 
 	if (!dev || !dev->map_name)
 		return -EINVAL;
@@ -1526,14 +1527,18 @@ int rc_register_device(struct rc_dev *dev)
 			goto out_input;
 	}
 
+	rc_type = BIT_ULL(rc_map->rc_type);
+
 	if (dev->change_protocol) {
-		u64 rc_type = (1ll << rc_map->rc_type);
 		rc = dev->change_protocol(dev, &rc_type);
 		if (rc < 0)
 			goto out_raw;
 		dev->enabled_protocols = rc_type;
 	}
 
+	if (dev->driver_type == RC_DRIVER_IR_RAW)
+		ir_raw_load_modules(&rc_type);
+
 	/* Allow the RC sysfs nodes to be accessible */
 	atomic_set(&dev->initialized, 1);
 
-- 
2.9.3