linux-kernel - [kbingham-rcar:kbingham/vsp/v3u-5.16 31/50] drivers/soc/renesas/rcar-irqc.c:46:6: warning: no previous prototype for 'r8a7791_irqc

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Message-ID: <202111251426.faFMJHB3-lkp@intel.com>
Date:   Thu, 25 Nov 2021 14:55:28 +0800
From:   kernel test robot <lkp@...el.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Subject: [kbingham-rcar:kbingham/vsp/v3u-5.16 31/50]
 drivers/soc/renesas/rcar-irqc.c:46:6: warning: no previous prototype for
 'r8a7791_irqc_show'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git kbingham/vsp/v3u-5.16
head:   ccac14c690227590a29f6d85289101f00de58ec6
commit: afbd32fecf59eeb92e38e7fd7824b60d46d5c894 [31/50] soc: renesas: rcar: IRQC debug handling
config: arm-shmobile_defconfig (https://download.01.org/0day-ci/archive/20211125/202111251426.faFMJHB3-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git/commit/?id=afbd32fecf59eeb92e38e7fd7824b60d46d5c894
        git remote add kbingham-rcar https://git.kernel.org/pub/scm/linux/kernel/git/kbingham/rcar.git
        git fetch --no-tags kbingham-rcar kbingham/vsp/v3u-5.16
        git checkout afbd32fecf59eeb92e38e7fd7824b60d46d5c894
        # save the config file to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm 

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/soc/renesas/rcar-irqc.c:46:6: warning: no previous prototype for 'r8a7791_irqc_show' [-Wmissing-prototypes]
      46 | void r8a7791_irqc_show(const char *msg, unsigned int n)
         |      ^~~~~~~~~~~~~~~~~


vim +/r8a7791_irqc_show +46 drivers/soc/renesas/rcar-irqc.c

    45	
  > 46	void r8a7791_irqc_show(const char *msg, unsigned int n)
    47	{
    48		printk("%s:%u\n", msg, n);
    49		printk("-LEVEL-- --HIGH-- --LOW--- -S-RISE- -S-FALL- -A-RISE- -A-FALL-\n");
    50		printk("%08x %08x %08x %08x %08x %08x %08x\n",
    51		       ioread32(irqc + MONITOR), ioread32(irqc + HLVL_STS),
    52		       ioread32(irqc + LLVL_STS), ioread32(irqc + S_R_EDGE_STS),
    53		       ioread32(irqc + S_F_EDGE_STS), ioread32(irqc + A_R_EDGE_STS),
    54		       ioread32(irqc + A_F_EDGE_STS));
    55	}
    56	

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