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Thu, 30 Nov 2023 05:04:45 +0000 Date: Thu, 30 Nov 2023 13:03:35 +0800 From: kernel test robot To: Jiaxun Yang Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Thomas Bogendoerfer Subject: drivers/platform/mips/rs780e-acpi.c:47:6: warning: no previous prototype for 'pm2_iowrite' Message-ID: <202311301354.Ga1imV7I-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jiaxun, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3b47bc037bd44f142ac09848e8d3ecccc726be99 commit: 0cfd2440aa03ea3d4b04cc2565561cecadcb1257 MIPS: Loongson64: Make RS780E ACPI as a platform driver date: 3 years, 7 months ago config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20231130/202311301354.Ga1imV7I-lkp@intel.com/config) compiler: mips-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231130/202311301354.Ga1imV7I-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202311301354.Ga1imV7I-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/platform/mips/rs780e-acpi.c:35:6: warning: no previous prototype for 'pm_iowrite' [-Wmissing-prototypes] 35 | void pm_iowrite(u8 reg, u8 value) | ^~~~~~~~~~ drivers/platform/mips/rs780e-acpi.c:41:4: warning: no previous prototype for 'pm_ioread' [-Wmissing-prototypes] 41 | u8 pm_ioread(u8 reg) | ^~~~~~~~~ >> drivers/platform/mips/rs780e-acpi.c:47:6: warning: no previous prototype for 'pm2_iowrite' [-Wmissing-prototypes] 47 | void pm2_iowrite(u8 reg, u8 value) | ^~~~~~~~~~~ >> drivers/platform/mips/rs780e-acpi.c:53:4: warning: no previous prototype for 'pm2_ioread' [-Wmissing-prototypes] 53 | u8 pm2_ioread(u8 reg) | ^~~~~~~~~~ drivers/platform/mips/rs780e-acpi.c:72:6: warning: no previous prototype for 'acpi_registers_setup' [-Wmissing-prototypes] 72 | void acpi_registers_setup(void) | ^~~~~~~~~~~~~~~~~~~~ vim +/pm2_iowrite +47 drivers/platform/mips/rs780e-acpi.c 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 46 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 @47 void pm2_iowrite(u8 reg, u8 value) 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 48 { 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 49 pmio_write_index(PM2_INDEX, reg, value); 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 50 } 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 51 EXPORT_SYMBOL(pm2_iowrite); 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 52 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 @53 u8 pm2_ioread(u8 reg) 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 54 { 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 55 return pmio_read_index(PM2_INDEX, reg); 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 56 } 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 57 EXPORT_SYMBOL(pm2_ioread); 9c057b3e02184b drivers/platform/mips/acpi_init.c Huacai Chen 2015-03-29 58 :::::: The code at line 47 was first introduced by commit :::::: 9c057b3e02184b111d3392be75efc7c94f0fdf20 MIPS: Loongson-3: Add chipset ACPI platform driver :::::: TO: Huacai Chen :::::: CC: Ralf Baechle -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki