Re: [PATCH 2/3] MIPS: zboot: Add UHI semihosting debug print support

[kernel test robot]

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@xxxxxxxxx/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@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311010521.7YJZiVJm-lkp@xxxxxxxxx/

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)

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