From 643257d911fd4272ed9805319ce31e3d2017ad30 Mon Sep 17 00:00:00 2001
From: Erik Montnemery <erik@montnemery.com>
Date: Mon, 21 Oct 2019 17:34:58 +0200
Subject: [PATCH] Include subscriber information when MQTT message can't be
 decoded (#28062)

---
 homeassistant/components/mqtt/__init__.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index 119c9b520d7..2fab599ac3f 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -925,10 +925,11 @@ class MQTT:
                     payload = msg.payload.decode(subscription.encoding)
                 except (AttributeError, UnicodeDecodeError):
                     _LOGGER.warning(
-                        "Can't decode payload %s on %s with encoding %s",
+                        "Can't decode payload %s on %s with encoding %s (for %s)",
                         msg.payload,
                         msg.topic,
                         subscription.encoding,
+                        subscription.callback,
                     )
                     continue