netdev - Re: [PATCH next] xprtrdma: make the symbol 'xprt_rdma_slot_table

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Date:   Mon, 10 Feb 2020 11:08:57 -0500
From:   Chuck Lever <chuck.lever@...cle.com>
To:     Chen Wandun <chenwandun@...wei.com>
Cc:     Bruce Fields <bfields@...ldses.org>,
        trond.myklebust@...merspace.com,
        Anna Schumaker <Anna.Schumaker@...app.com>,
        davem@...emloft.net, kuba@...nel.org,
        Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH next] xprtrdma: make the symbol
 'xprt_rdma_slot_table_entries' static

Hi-

The Fixes: tag seems incorrect to me.


> On Feb 10, 2020, at 2:39 AM, Chen Wandun <chenwandun@...wei.com> wrote:
> 
> Fix the following sparse warning:
> net/sunrpc/xprtrdma/transport.c:71:14: warning: symbol 'xprt_rdma_slot_table_entries' was not declared. Should it be static?
> 
> Fixes: 86c4ccd9b92b ("xprtrdma: Eliminate struct rpcrdma_create_data_internal")

86c4ccd9b92b correctly makes xprt_rdma_slot_table_entries a
global variable. This later commit (in v5.6-rc1)

7581d90109ca ("xprtrdma: Refactor initialization of ep->rep_max_requests")

should have changed xprt_rdma_slot_table_entries back to a static.

I'm not sure what the call is on sparse warnings these days, but
it doesn't seem like this clean up should be backported to stable. 
Should Fixes: be removed?


> Signed-off-by: Chen Wandun <chenwandun@...wei.com>
> ---
> net/sunrpc/xprtrdma/transport.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
> index 3cfeba68ee9a..14c2a852d2a1 100644
> --- a/net/sunrpc/xprtrdma/transport.c
> +++ b/net/sunrpc/xprtrdma/transport.c
> @@ -68,7 +68,7 @@
>  * tunables
>  */
> 
> -unsigned int xprt_rdma_slot_table_entries = RPCRDMA_DEF_SLOT_TABLE;
> +static unsigned int xprt_rdma_slot_table_entries = RPCRDMA_DEF_SLOT_TABLE;
> unsigned int xprt_rdma_max_inline_read = RPCRDMA_DEF_INLINE;
> unsigned int xprt_rdma_max_inline_write = RPCRDMA_DEF_INLINE;
> unsigned int xprt_rdma_memreg_strategy		= RPCRDMA_FRWR;
> -- 
> 2.17.1

--
Chuck Lever