linux-kernel - Re: [PATCH] include/linux/rbtree.h: move the declaration of c in rb_find

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Date:   Wed, 19 Apr 2023 03:12:36 +0800
From:   kernel test robot <lkp@...el.com>
To:     Lin Chun Yeh <r09921093@...tu.edu.tw>, linux-kernel@...r.kernel.org
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        Lin Chun Yeh <r09921093@...tu.edu.tw>
Subject: Re: [PATCH] include/linux/rbtree.h: move the declaration of c in
 rb_find_add()

Hi Lin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.3-rc7 next-20230417]
[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/Lin-Chun-Yeh/include-linux-rbtree-h-move-the-declaration-of-c-in-rb_find_add/20230418-230031
patch link:    https://lore.kernel.org/r/20230418145712.20620-1-r09921093%40g.ntu.edu.tw
patch subject: [PATCH] include/linux/rbtree.h: move the declaration of c in rb_find_add()
config: s390-randconfig-r044-20230417 (https://download.01.org/0day-ci/archive/20230419/202304190219.FPDNRf8x-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 437b7602e4a998220871de78afcb020b9c14a661)
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
        # install s390 cross compiling tool for clang build
        # apt-get install binutils-s390x-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/9348e5c71c46a8d88c805acf5dd56c1785bc04e8
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Lin-Chun-Yeh/include-linux-rbtree-h-move-the-declaration-of-c-in-rb_find_add/20230418-230031
        git checkout 9348e5c71c46a8d88c805acf5dd56c1785bc04e8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304190219.FPDNRf8x-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: unsafe memchr() usage lacked '__read_overflow' warning in lib/test_fortify/read_overflow-memchr.c
--
>> warning: unsafe memchr_inv() usage lacked '__read_overflow' warning in lib/test_fortify/read_overflow-memchr_inv.c
--
>> warning: unsafe memcmp() usage lacked '__read_overflow' warning in lib/test_fortify/read_overflow-memcmp.c
--
>> warning: unsafe memscan() usage lacked '__read_overflow' warning in lib/test_fortify/read_overflow-memscan.c
--
>> warning: unsafe memcmp() usage lacked '__read_overflow2' warning in lib/test_fortify/read_overflow2-memcmp.c
--
>> warning: unsafe memcpy() usage lacked '__read_overflow2' warning in lib/test_fortify/read_overflow2-memcpy.c
--
>> warning: unsafe memmove() usage lacked '__read_overflow2' warning in lib/test_fortify/read_overflow2-memmove.c
--
>> warning: unsafe memcpy() usage lacked '__read_overflow2_field' warning in lib/test_fortify/read_overflow2_field-memcpy.c
--
>> warning: unsafe memmove() usage lacked '__read_overflow2_field' warning in lib/test_fortify/read_overflow2_field-memmove.c
--
>> warning: unsafe memcpy() usage lacked '__write_overflow' warning in lib/test_fortify/write_overflow-memcpy.c
--
>> warning: unsafe memmove() usage lacked '__write_overflow' warning in lib/test_fortify/write_overflow-memmove.c
..

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