linux-kernel - Re: [PATCH] Type cast some size_t arguments to 'unsigned int' to avoid (harmless) gcc printk warnings.

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Message-ID: <46414307.90504@zytor.com>
Date:	Tue, 08 May 2007 20:41:59 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Chris Wedgwood <cw@...f.org>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Type cast some size_t arguments to 'unsigned int' to
 avoid (harmless) gcc printk warnings.

Chris Wedgwood wrote:
> Signed-off-by: Chris Wedgwood <cw@...f.org>
> ---
>  net/sunrpc/sched.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
> index 4a53e94..60df3c1 100644
> --- a/net/sunrpc/sched.c
> +++ b/net/sunrpc/sched.c
> @@ -764,7 +764,7 @@ void *rpc_malloc(struct rpc_task *task, size_t size)
>  		buf = kmalloc(size, gfp);
>  	*buf = size;
>  	dprintk("RPC: %5u allocated buffer of size %u at %p\n",
> -			task->tk_pid, size, buf);
> +			task->tk_pid, (unsigned int)size, buf);
>  	return (void *) ++buf;
>  }
>  
> @@ -783,7 +783,7 @@ void rpc_free(void *buffer)
>  	buf--;
>  
>  	dprintk("RPC:       freeing buffer of size %u at %p\n",
> -			size, buf);
> +			(unsigned int)size, buf);
>  	if (size <= RPC_BUFFER_MAXSIZE)
>  		mempool_free(buf, rpc_buffer_mempool);
>  	else

NAK.  This is wrong for multiple reasons.
Use %zu instead.

	-hpa


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