linux-kernel - Re: [PATCH v2 09/13] net: lpc-enet: fix printk format strings

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Message-ID: <dc0de0cd9a1e24477b20d563199e800b98d933f6.camel@perches.com>
Date:   Fri, 09 Aug 2019 09:30:40 -0700
From:   Joe Perches <joe@...ches.com>
To:     Arnd Bergmann <arnd@...db.de>, soc@...nel.org
Cc:     Vladimir Zapolskiy <vz@...ia.com>,
        Sylvain Lemieux <slemieux.tyco@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kbuild test robot <lkp@...el.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH v2 09/13] net: lpc-enet: fix printk format strings

On Fri, 2019-08-09 at 16:40 +0200, Arnd Bergmann wrote:
> compile-testing this driver on other architectures showed
> multiple warnings:
> 
>   drivers/net/ethernet/nxp/lpc_eth.c: In function 'lpc_eth_drv_probe':
>   drivers/net/ethernet/nxp/lpc_eth.c:1337:19: warning: format '%d' expects argument of type 'int', but argument 4 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=]
> 
>   drivers/net/ethernet/nxp/lpc_eth.c:1342:19: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=]
> 
> Use format strings that work on all architectures.
[]
> diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
[]
> @@ -1333,13 +1333,14 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
>  	pldat->dma_buff_base_p = dma_handle;
>  
>  	netdev_dbg(ndev, "IO address space     :%pR\n", res);
> -	netdev_dbg(ndev, "IO address size      :%d\n", resource_size(res));
> +	netdev_dbg(ndev, "IO address size      :%zd\n",
> +			(size_t)resource_size(res));

Ideally all these would use %zu not %zd