linux-kernel - [linux-chenxing:mstar_v5_14_rebase_i2_drm 243/349] drivers/dma/mstar/mstar-msc313-urdma.c:69:6: warning: no previous prototype for 'msc313_urdma_issue

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Message-ID: <202107191029.uA8KHnLm-lkp@intel.com>
Date:   Mon, 19 Jul 2021 10:16:37 +0800
From:   kernel test robot <lkp@...el.com>
To:     Daniel Palmer <daniel@...f.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [linux-chenxing:mstar_v5_14_rebase_i2_drm 243/349]
 drivers/dma/mstar/mstar-msc313-urdma.c:69:6: warning: no previous prototype
 for 'msc313_urdma_issue_pending'

tree:   git://github.com/linux-chenxing/linux.git mstar_v5_14_rebase_i2_drm
head:   93dfb2364436067bf34c6d4ddcd282496182cc0f
commit: c5e4acb2d1b28e7d0ccecb5a9232072ebfb29790 [243/349] dma: mstar: urdma
config: s390-allyesconfig (attached as .config)
compiler: s390-linux-gcc (GCC) 10.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/linux-chenxing/linux/commit/c5e4acb2d1b28e7d0ccecb5a9232072ebfb29790
        git remote add linux-chenxing git://github.com/linux-chenxing/linux.git
        git fetch --no-tags linux-chenxing mstar_v5_14_rebase_i2_drm
        git checkout c5e4acb2d1b28e7d0ccecb5a9232072ebfb29790
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=s390 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   drivers/dma/mstar/mstar-msc313-urdma.c: In function 'msc313_urdma_irq':
   drivers/dma/mstar/mstar-msc313-urdma.c:59:23: warning: unused variable 'urdma' [-Wunused-variable]
      59 |  struct msc313_urdma *urdma = data;
         |                       ^~~~~
   drivers/dma/mstar/mstar-msc313-urdma.c: At top level:
>> drivers/dma/mstar/mstar-msc313-urdma.c:69:6: warning: no previous prototype for 'msc313_urdma_issue_pending' [-Wmissing-prototypes]
      69 | void msc313_urdma_issue_pending(struct dma_chan *chan){
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/dma/mstar/mstar-msc313-urdma.c: In function 'msc313_tx_submit':
>> drivers/dma/mstar/mstar-msc313-urdma.c:75:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
      75 |  struct msc313_urdma_desc *desc = to_desc(tx);
         |  ^~~~~~


vim +/msc313_urdma_issue_pending +69 drivers/dma/mstar/mstar-msc313-urdma.c

    68	
  > 69	void msc313_urdma_issue_pending(struct dma_chan *chan){
    70		printk("urdma issue pending\n");
    71	}
    72	
    73	static dma_cookie_t msc313_tx_submit(struct dma_async_tx_descriptor *tx){
    74		struct msc313_urdma_chan *chan = to_chan(tx->chan);
  > 75		struct msc313_urdma_desc *desc = to_desc(tx);
    76		list_add_tail(&desc->queue_node, &chan->queue);
    77		return chan->cookie++;
    78	}
    79	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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