linux-kernel - arch/arm/mach-s3c/irq-s3c24xx.c:360:39: warning: no previous prototype for 's3c24xx_handle

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Date:   Sat, 13 Nov 2021 11:41:16 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzk@...nel.org>
Subject: arch/arm/mach-s3c/irq-s3c24xx.c:360:39: warning: no previous
 prototype for 's3c24xx_handle_irq'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   66f4beaa6c1d28161f534471484b2daa2de1dce0
commit: 71b9114d2c13a648fbe6523dd859e611c316ad90 ARM: s3c: move into a common directory
date:   1 year, 3 months ago
config: arm-randconfig-r012-20211104 (attached as .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/torvalds/linux.git/commit/?id=71b9114d2c13a648fbe6523dd859e611c316ad90
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 71b9114d2c13a648fbe6523dd859e611c316ad90
        # save the attached .config 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 >>):

>> arch/arm/mach-s3c/irq-s3c24xx.c:360:39: warning: no previous prototype for 's3c24xx_handle_irq' [-Wmissing-prototypes]
     360 | asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs)
         |                                       ^~~~~~~~~~~~~~~~~~
>> arch/arm/mach-s3c/irq-s3c24xx.c:783:13: warning: no previous prototype for 's3c2412_init_irq' [-Wmissing-prototypes]
     783 | void __init s3c2412_init_irq(void)
         |             ^~~~~~~~~~~~~~~~
>> arch/arm/mach-s3c/irq-s3c24xx.c:1034:13: warning: no previous prototype for 's3c2442_init_irq' [-Wmissing-prototypes]
    1034 | void __init s3c2442_init_irq(void)
         |             ^~~~~~~~~~~~~~~~
>> arch/arm/mach-s3c/irq-s3c24xx.c:1124:13: warning: no previous prototype for 's3c2443_init_irq' [-Wmissing-prototypes]
    1124 | void __init s3c2443_init_irq(void)
         |             ^~~~~~~~~~~~~~~~
>> arch/arm/mach-s3c/irq-s3c24xx.c:1308:12: warning: no previous prototype for 's3c2410_init_intc_of' [-Wmissing-prototypes]
    1308 | int __init s3c2410_init_intc_of(struct device_node *np,
         |            ^~~~~~~~~~~~~~~~~~~~
>> arch/arm/mach-s3c/irq-s3c24xx.c:1330:12: warning: no previous prototype for 's3c2416_init_intc_of' [-Wmissing-prototypes]
    1330 | int __init s3c2416_init_intc_of(struct device_node *np,
         |            ^~~~~~~~~~~~~~~~~~~~
--
>> arch/arm/mach-s3c/gpio-samsung.c:1309:14: warning: no previous prototype for 's3c2410_modify_misccr' [-Wmissing-prototypes]
    1309 | unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
         |              ^~~~~~~~~~~~~~~~~~~~~


vim +/s3c24xx_handle_irq +360 arch/arm/mach-s3c/irq-s3c24xx.c

17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  359  
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07 @360  asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs)
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  361  {
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  362  	do {
658dc8fb9cbc771 drivers/irqchip/irq-s3c24xx.c Heiko Stuebner 2013-04-04  363  		if (likely(s3c_intc[0]))
f0774d41da0e607 drivers/irqchip/irq-s3c24xx.c Heiko Stuebner 2013-04-04  364  			if (s3c24xx_handle_intc(s3c_intc[0], regs, 0))
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  365  				continue;
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  366  
658dc8fb9cbc771 drivers/irqchip/irq-s3c24xx.c Heiko Stuebner 2013-04-04  367  		if (s3c_intc[2])
f0774d41da0e607 drivers/irqchip/irq-s3c24xx.c Heiko Stuebner 2013-04-04  368  			if (s3c24xx_handle_intc(s3c_intc[2], regs, 64))
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  369  				continue;
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  370  
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  371  		break;
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  372  	} while (1);
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  373  }
17453dd2e7df206 arch/arm/mach-s3c24xx/irq.c   Heiko Stuebner 2013-03-07  374  

:::::: The code at line 360 was first introduced by commit
:::::: 17453dd2e7df20612770ebbf1ab5d506a432210c ARM: S3C24XX: add handle_irq function

:::::: TO: Heiko Stuebner <heiko@...ech.de>
:::::: CC: Kukjin Kim <kgene.kim@...sung.com>

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

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