linux-kernel - Re: [PATCH v2] staging: octeon: fix line over 80 characters

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Date:   Sat, 29 Jul 2017 17:30:48 +0800
From:   kbuild test robot <lkp@...el.com>
To:     catalinnow@...il.com
Cc:     kbuild-all@...org, gregkh@...uxfoundation.org,
        aaro.koskinen@....fi, davem@...emloft.net, johannes.berg@...el.com,
        stephen@...workplumber.org, tklauser@...tanz.ch,
        chuckleberryfinn@...il.com, arnd@...db.de, catalinnow@...il.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] staging: octeon: fix line over 80 characters

Hi John,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.13-rc2 next-20170728]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/catalinnow-gmail-com/staging-octeon-fix-line-over-80-characters/20170728-071556
config: mips-cavium_octeon_defconfig (attached as .config)
compiler: mips64-linux-gnuabi64-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

All warnings (new ones prefixed by >>):

   drivers/staging/octeon/ethernet-rx.c: In function 'copy_segments_to_skb':
>> drivers/staging/octeon/ethernet-rx.c:173:3: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      int segment_size =
      ^~~

vim +173 drivers/staging/octeon/ethernet-rx.c

   151	
   152	static void copy_segments_to_skb(cvmx_wqe_t *work, struct sk_buff *skb)
   153	{
   154		int segments = work->word2.s.bufs;
   155		union cvmx_buf_ptr segment_ptr = work->packet_ptr;
   156		int len = work->word1.len;
   157	
   158		while (segments--) {
   159			union cvmx_buf_ptr next_ptr;
   160	
   161			next_ptr = *(union cvmx_buf_ptr *)
   162				cvmx_phys_to_ptr(segment_ptr.s.addr - 8);
   163	
   164			/*
   165			 * Octeon Errata PKI-100: The segment size is wrong.
   166			 *
   167			 * Until it is fixed, calculate the segment size based on
   168			 * the packet pool buffer size.
   169			 * When it is fixed, the following line should be replaced
   170			 * with this one:
   171			 * int segment_size = segment_ptr.s.size;
   172			 */
 > 173			int segment_size =
   174				CVMX_FPA_PACKET_POOL_SIZE -
   175				(segment_ptr.s.addr -
   176				 (((segment_ptr.s.addr >> 7) -
   177				   segment_ptr.s.back) << 7));
   178	
   179			/* Don't copy more than what is left in the packet */
   180			if (segment_size > len)
   181				segment_size = len;
   182	
   183			/* Copy the data into the packet */
   184			skb_put_data(skb, cvmx_phys_to_ptr(segment_ptr.s.addr),
   185				     segment_size);
   186			len -= segment_size;
   187			segment_ptr = next_ptr;
   188		}
   189	}
   190	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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