Fixes the following W=1 kernel build warning(s):

 drivers/net/xen-netback/xenbus.c:419: warning: Function parameter or member 'dev' not described in 'frontend_changed'
 drivers/net/xen-netback/xenbus.c:419: warning: Function parameter or member 'frontend_state' not described in 'frontend_changed'
 drivers/net/xen-netback/xenbus.c:1001: warning: Function parameter or member 'dev' not described in 'netback_probe'
 drivers/net/xen-netback/xenbus.c:1001: warning: Function parameter or member 'id' not described in 'netback_probe'

Cc: Wei Liu <wei.liu@kernel.org>
Cc: Paul Durrant <paul@xen.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jesper Dangaard Brouer <hawk@kernel.org>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: xen-devel@lists.xenproject.org
Cc: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/net/xen-netback/xenbus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 6f10e0998f1ce..a5439c130130f 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -411,7 +411,7 @@ static void read_xenbus_frontend_xdp(struct backend_info *be,
 	vif->xdp_headroom = headroom;
 }
 
-/**
+/*
  * Callback received when the frontend's state changes.
  */
 static void frontend_changed(struct xenbus_device *dev,
@@ -996,7 +996,7 @@ static int netback_remove(struct xenbus_device *dev)
 	return 0;
 }
 
-/**
+/*
  * Entry point to this code when a new device is created.  Allocate the basic
  * structures and switch to InitWait.
  */
-- 
2.25.1

> -----Original Message-----
> From: Lee Jones <lee.jones@linaro.org>
> Sent: 15 January 2021 20:09
> To: lee.jones@linaro.org
> Cc: linux-kernel@vger.kernel.org; Wei Liu <wei.liu@kernel.org>; Paul Durrant <paul@xen.org>; David S.
> Miller <davem@davemloft.net>; Jakub Kicinski <kuba@kernel.org>; Alexei Starovoitov <ast@kernel.org>;
> Daniel Borkmann <daniel@iogearbox.net>; Jesper Dangaard Brouer <hawk@kernel.org>; John Fastabend
> <john.fastabend@gmail.com>; Rusty Russell <rusty@rustcorp.com.au>; xen-devel@lists.xenproject.org;
> netdev@vger.kernel.org; bpf@vger.kernel.org; Andrew Lunn <andrew@lunn.ch>
> Subject: [PATCH 2/7] net: xen-netback: xenbus: Demote nonconformant kernel-doc headers
> 
> Fixes the following W=1 kernel build warning(s):
> 
>  drivers/net/xen-netback/xenbus.c:419: warning: Function parameter or member 'dev' not described in
> 'frontend_changed'
>  drivers/net/xen-netback/xenbus.c:419: warning: Function parameter or member 'frontend_state' not
> described in 'frontend_changed'
>  drivers/net/xen-netback/xenbus.c:1001: warning: Function parameter or member 'dev' not described in
> 'netback_probe'
>  drivers/net/xen-netback/xenbus.c:1001: warning: Function parameter or member 'id' not described in
> 'netback_probe'
> 
> Cc: Wei Liu <wei.liu@kernel.org>
> Cc: Paul Durrant <paul@xen.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: Alexei Starovoitov <ast@kernel.org>
> Cc: Daniel Borkmann <daniel@iogearbox.net>
> Cc: Jesper Dangaard Brouer <hawk@kernel.org>
> Cc: John Fastabend <john.fastabend@gmail.com>
> Cc: Rusty Russell <rusty@rustcorp.com.au>
> Cc: xen-devel@lists.xenproject.org
> Cc: netdev@vger.kernel.org
> Cc: bpf@vger.kernel.org
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>

Reviewed-by: Paul Durrant <paul@xen.org>