On Sun, 21 Jun 2020 12:56:28 -0400 Gaurav Singh wrote:
> Remove the redundant null check for skb.
> 
> Signed-off-by: Gaurav Singh <gaurav1...@gmail.com>
Thanks for the patch, it looks correct, but could you describe your
proof / reasoning based on which this change is correct?

Please post non-bug fixes like this with a [net-next] rather than [net]
tag (https://www.kernel.org/doc/html/latest/networking/netdev-FAQ.html).

> diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
> index d2a4553bcf39..84dde5a2066e 100644
> --- a/net/dcb/dcbnl.c
> +++ b/net/dcb/dcbnl.c
> @@ -1736,7 +1736,7 @@ static int dcb_doit(struct sk_buff *skb, struct 
> nlmsghdr *nlh,
>       struct net_device *netdev;
>       struct dcbmsg *dcb = nlmsg_data(nlh);
>       struct nlattr *tb[DCB_ATTR_MAX + 1];
> -     u32 portid = skb ? NETLINK_CB(skb).portid : 0;
> +     u32 portid = NETLINK_CB(skb).portid;
>       int ret = -EINVAL;
>       struct sk_buff *reply_skb;
>       struct nlmsghdr *reply_nlh = NULL;

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