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Date:   Wed, 1 Nov 2023 05:49:39 +0800
From:   kernel test robot <lkp@intel.com>
To:     Jiaxun Yang <jiaxun.yang@flygoat.com>, linux-mips@vger.kernel.org
Cc:     oe-kbuild-all@lists.linux.dev, linux-serial@vger.kernel.org,
        linux-kernel@vger.kernel.org, tsbogend@alpha.franken.de,
        gregkh@linuxfoundation.org, jirislaby@kernel.org,
        Jiaxun Yang <jiaxun.yang@flygoat.com>
Subject: Re: [PATCH 2/3] MIPS: zboot: Add UHI semihosting debug print support
Message-ID: <202311010521.7YJZiVJm-lkp@intel.com>
References: <20231027182650.281405-7-jiaxun.yang@flygoat.com>
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In-Reply-To: <20231027182650.281405-7-jiaxun.yang@flygoat.com>
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Hi Jiaxun,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tty/tty-testing]
[also build test WARNING on tty/tty-next tty/tty-linus linus/master v6.6 next-20231030]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Jiaxun-Yang/MIPS-zboot-Add-UHI-semihosting-debug-print-support/20231028-032719
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
patch link:    https://lore.kernel.org/r/20231027182650.281405-7-jiaxun.yang%40flygoat.com
patch subject: [PATCH 2/3] MIPS: zboot: Add UHI semihosting debug print support
config: mips-allmodconfig (https://download.01.org/0day-ci/archive/20231101/202311010521.7YJZiVJm-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/20231101/202311010521.7YJZiVJm-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311010521.7YJZiVJm-lkp@intel.com/

Note: functions only called from assembly code should be annotated with the asmlinkage attribute
All warnings (new ones prefixed by >>):

>> arch/mips/boot/compressed/dbg-uhi.c:8:6: warning: no previous prototype for 'puts' [-Wmissing-prototypes]
       8 | void puts(const char *s)
         |      ^~~~


vim +/puts +8 arch/mips/boot/compressed/dbg-uhi.c

     7	
   > 8	void puts(const char *s)

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki