On 4/8/17 1:48 PM, Johannes Berg wrote:
> diff --git a/include/linux/netlink.h b/include/linux/netlink.h
> index da14ab61f363..47562e940e9c 100644
> --- a/include/linux/netlink.h
> +++ b/include/linux/netlink.h
> @@ -62,11 +62,41 @@ netlink_kernel_create(struct net *net, int unit, struct
> netlink_kernel_cfg *cfg)
> return __netlink_kernel_create(net, unit, THIS_MODULE, cfg);
> }
>
> +/**
> + * struct netlink_ext_ack - netlink extended ACK report struct
> + * @_msg: message string to report - don't access directly, use
> + * %NL_SET_ERR_MSG
> + * @bad_attr: attribute with error
> + * @missing_attr: number of missing attr (or 0)
> + * @cookie: cookie data to return to userspace (for success)
> + * @cookie_len: actual cookie data length
> + */
> +struct netlink_ext_ack {
> + const char *_msg;
> + const struct nlattr *bad_attr;
> + u16 missing_attr;
> + u8 cookie[NETLINK_MAX_COOKIE_LEN];
> + u8 cookie_len;
> +};
> +
I think v3 is in your future ...
/home/dsa/kernel-4.git/include/linux/netlink.h:78:12: error:
‘NETLINK_MAX_COOKIE_LEN’ undeclared here (not in a function)
u8 cookie[NETLINK_MAX_COOKIE_LEN];
^
it's defined in patch 3; needed in patch 1
