linux-kernel - Re: [PATCH] netdev: octeon_mgmt: ISO C90 forbids mixed declarations and code

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Date:	Sat, 13 Sep 2014 12:11:12 -0700
From:	Joe Perches <joe@...ches.com>
To:	Heinrich Schuchardt <xypron.glpk@....de>
Cc:	David Daney <david.daney@...ium.com>,
	"David S. Miller" <davem@...emloft.net>,
	Luka Perkov <luka@...nwrt.org>,
	Willem de Bruijn <willemb@...gle.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netdev: octeon_mgmt: ISO C90 forbids mixed declarations
 and code

On Sat, 2014-09-13 at 21:05 +0200, Heinrich Schuchardt wrote:
> Compiling with OCTEON_MGMT_ETHERNET gives a warning
> drivers/net/ethernet/octeon/octeon_mgmt.c:295:4:
> warning: ISO C90 forbids mixed declarations and code
> [-Wdeclaration-after-statement]

Maybe better to move the memset after the declaration.

> diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
[]
> @@ -254,6 +254,7 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
>  	struct sk_buff *skb;
>  	int cleaned = 0;
>  	unsigned long flags;
> +	u64 ns;
>  
>  	mix_orcnt.u64 = cvmx_read_csr(p->mix + MIX_ORCNT);
>  	while (mix_orcnt.s.orcnt) {
> @@ -292,7 +293,7 @@ static void octeon_mgmt_clean_tx_buffers(struct octeon_mgmt *p)
>  			struct skb_shared_hwtstamps ts;
>  			memset(&ts, 0, sizeof(ts));
>  			/* Read the timestamp */
> -			u64 ns = cvmx_read_csr(CVMX_MIXX_TSTAMP(p->port));
> +			ns = cvmx_read_csr(CVMX_MIXX_TSTAMP(p->port));
>  			/* Remove the timestamp from the FIFO */
>  			cvmx_write_csr(CVMX_MIXX_TSCTL(p->port), 0);
>  			/* Tell the kernel about the timestamp */



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