netdev - Re: [PATCH v8 2/3] NFSD: introduce netlink rpc

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Message-ID: <20230912150751.GG401982@kernel.org>
Date: Tue, 12 Sep 2023 17:07:51 +0200
From: Simon Horman <horms@...nel.org>
To: Lorenzo Bianconi <lorenzo@...nel.org>
Cc: linux-nfs@...r.kernel.org, lorenzo.bianconi@...hat.com,
	chuck.lever@...cle.com, jlayton@...nel.org, neilb@...e.de,
	netdev@...r.kernel.org
Subject: Re: [PATCH v8 2/3] NFSD: introduce netlink rpc_status stubs

On Mon, Sep 11, 2023 at 02:49:45PM +0200, Lorenzo Bianconi wrote:
> Generate empty netlink stubs and uAPI through nfsd_server.yaml specs:
> 
> $./tools/net/ynl/ynl-gen-c.py --mode uapi \
>  --spec Documentation/netlink/specs/nfsd_server.yaml \
>  --header -o include/uapi/linux/nfsd_server.h
> $./tools/net/ynl/ynl-gen-c.py --mode kernel \
>  --spec Documentation/netlink/specs/nfsd_server.yaml \
>  --header -o fs/nfsd/nfs_netlink_gen.h
> $./tools/net/ynl/ynl-gen-c.py --mode kernel \
>  --spec Documentation/netlink/specs/nfsd_server.yaml \
>  --source -o fs/nfsd/nfs_netlink_gen.c
> 
> Tested-by: Jeff Layton <jlayton@...nel.org>
> Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>

...

> diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
> index 33f80d289d63..1be66088849c 100644
> --- a/fs/nfsd/nfsctl.c
> +++ b/fs/nfsd/nfsctl.c
> @@ -1495,6 +1495,22 @@ static int create_proc_exports_entry(void)
>  
>  unsigned int nfsd_net_id;
>  
> +int nfsd_server_nl_rpc_status_get_start(struct netlink_callback *cb)
> +{
> +	return 0;
> +}
> +
> +int nfsd_server_nl_rpc_status_get_done(struct netlink_callback *cb)
> +{
> +	return 0;
> +}
> +
> +int nfsd_server_nl_rpc_status_get_dumpit(struct sk_buff *skb,
> +					 struct netlink_callback *cb)
> +{
> +	return 0;
> +}
> +

Hi Lorenzo,

W=1 build for gcc-13 and clang-16, and Smatch, complain that
there is no prototype for the above functions.

Perhaps nfs_netlink_gen.h should be included in this file?

>  /**
>   * nfsd_net_init - Prepare the nfsd_net portion of a new net namespace
>   * @net: a freshly-created network namespace

...