[kbuild-all] 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... 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(a)intel.com&gt; All warnings (new ones prefixed by >>): 360 | asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs) | ^~~~~~~~~~~~~~~~~~ 783 | void __init s3c2412_init_irq(void) | ^~~~~~~~~~~~~~~~ 1034 | void __init s3c2442_init_irq(void) | ^~~~~~~~~~~~~~~~ 1124 | void __init s3c2443_init_irq(void) | ^~~~~~~~~~~~~~~~ 1308 | int __init s3c2410_init_intc_of(struct device_node *np, | ^~~~~~~~~~~~~~~~~~~~ 1330 | int __init s3c2416_init_intc_of(struct device_node *np, | ^~~~~~~~~~~~~~~~~~~~ -- 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(a)sntech.de&gt; :::::: CC: Kukjin Kim <kgene.kim(a)samsung.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org