linux-kernel - Re: [PATCH 1/6] net-next: replace obsolete NLMSG_* with type safe nlmsg

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Message-ID: <51550325.6040000@hp.com>
Date:	Thu, 28 Mar 2013 22:57:41 -0400
From:	Brian Haley <brian.haley@...com>
To:	Hong Zhiguo <honkiko@...il.com>
CC:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	davem@...emloft.net, stephen@...workplumber.org, tgraf@...g.ch
Subject: Re: [PATCH 1/6] net-next: replace obsolete NLMSG_* with type safe
 nlmsg_*

On 03/27/2013 12:47 PM, Hong Zhiguo wrote:
> Signed-off-by: Hong Zhiguo <honkiko@...il.com>

> diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
> index 97351e1..9247252 100644
> --- a/net/ieee802154/netlink.c
> +++ b/net/ieee802154/netlink.c
> @@ -65,7 +65,7 @@ struct sk_buff *ieee802154_nl_create(int flags, u8 req)
>  int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
>  {
>  	/* XXX: nlh is right at the start of msg */
> -	void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
> +	void *hdr = genlmsg_data(nlmsg_data(msg->data));
>  
>  	if (genlmsg_end(msg, hdr) < 0)
>  		goto out;
> @@ -98,7 +98,7 @@ struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
>  int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
>  {
>  	/* XXX: nlh is right at the start of msg */
> -	void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
> +	void *hdr = genlmsg_data(nlmsg_data(msg->data));
>  
>  	if (genlmsg_end(msg, hdr) < 0)
>  		goto out;

  CC [M]  net/ieee802154/netlink.o
net/ieee802154/netlink.c: In function ‘ieee802154_nl_mcast’:
net/ieee802154/netlink.c:68: warning: passing argument 1 of ‘nlmsg_data’ from
incompatible pointer type
include/net/netlink.h:302: note: expected ‘const struct nlmsghdr *’ but argument
is of type ‘unsigned char *’
net/ieee802154/netlink.c: In function ‘ieee802154_nl_reply’:
net/ieee802154/netlink.c:101: warning: passing argument 1 of ‘nlmsg_data’ from
incompatible pointer type
include/net/netlink.h:302: note: expected ‘const struct nlmsghdr *’ but argument
is of type ‘unsigned char *’

-Brian
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