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From: kernel test robot <lkp@intel.com>
To: Wei Yang <richard.weiyang@linux.alibaba.com>,
	dan.j.williams@intel.com, akpm@linux-foundation.org
Cc: kbuild-all@lists.01.org, clang-built-linux@googlegroups.com,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Wei Yang <richard.weiyang@linux.alibaba.com>
Subject: Re: [PATCH] mm/sparse: only sub-section aligned range would be populated
Date: Wed, 1 Jul 2020 02:11:10 +0800	[thread overview]
Message-ID: <202007010217.Rut2zTnF%lkp@intel.com> (raw)
In-Reply-To: <20200630021436.43281-1-richard.weiyang@linux.alibaba.com>

[-- Attachment #1: Type: text/plain, Size: 21649 bytes --]

Hi Wei,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on mmotm/master]

url:    https://github.com/0day-ci/linux/commits/Wei-Yang/mm-sparse-only-sub-section-aligned-range-would-be-populated/20200630-101713
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: x86_64-allnoconfig (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project cf1d04484344be52ada8178e41d18fd15a9b880c)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   include/linux/signal.h:137:2: note: expanded from macro '_SIG_SET_BINOP'
   case 1: ^
   include/linux/signal.h:177:1: warning: unannotated fall-through between switch labels
   _SIG_SET_OP(signotset, _sig_not)
   ^
   include/linux/signal.h:167:2: note: expanded from macro '_SIG_SET_OP'
   case 2: = ^
   include/linux/signal.h:177:1: warning: unannotated fall-through between switch labels
   include/linux/signal.h:169:2: note: expanded from macro '_SIG_SET_OP'
   case 1: = ^
   include/linux/signal.h:190:2: warning: unannotated fall-through between switch labels
   case 1: = 0;
   ^
   include/linux/jhash.h:95:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 6: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   __attribute__((fallthrough));
   include/linux/jhash.h:95:2: note: insert 'break;' to avoid fall-through
   case 6: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   break;
   include/linux/jhash.h:96:2: warning: unannotated fall-through between switch labels
   case 5: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   15include/linux/signal.h:190:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 1: = 0;
   ^
   __attribute__((fallthrough));
   include/linux/signal.h:190:2: note: insert 'break;' to avoid fall-through
   case 1: = 0;
   ^
   break;
   include/linux/signal.h:203:2: warninginclude/linux/jhash.h:96:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 5: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   __attribute__((fallthrough));
   include/linux/jhash.h:96:2: note: insert 'break;' to avoid fall-through
   case 5: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   break;
   include/linux/jhash.h:97:2: warning: unannotated fall-through between switch labels
   case 4: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   : unannotated fall-through between switch labels
   case 1: = -1;
   ^
   warnings generated.
   include/linux/signal.h:203:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 1: = -1;
   ^
   __attribute__((fallthrough));
   include/linux/signal.h:15203:2: note: insert 'break;' to avoid fall-through
   case 1: = -1;
   ^
   break;
   include/linux/jhash.h:97:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 4: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   __attribute__((fallthrough));
   include/linux/jhash.h:97:2: note: insert 'break;' to avoid fall-through
   case 4: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   break;
   include/linux/jhash.h:98:2: warning: unannotated fall-through between switch labels
   case 3: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   include/linux/signal.h:233:2: warning: unannotated fall-through between switch labels
   case 1: ;
   ^
   warnings generated.
   In file included from kernel/printk/printk.c:61:
   kernel/printk/internal.h:54:20: warninginclude/linux/jhash.h:98:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 3: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   __attribute__((fallthrough));
   include/linux/jhash.h:98:2: note: no previous prototype for function 'vprintk_func'
   __printf(1, 0) int vprintk_func(const char va_list args) { return 0; }
   ^
   kernel/printk/internal.h: insert 'break;' to avoid fall-through
   case 3: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   break;
   include/linux/jhash.h:99:2: warning: unannotated fall-through between switch labels
   case 2: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   :54:16: note: declare 'static' if the function is not intended to be used outside of this translation unit
   __printf(1, 0) int vprintk_func(const char va_list args) { return 0; }
   ^
   static
   kernel/printk/printk.cinclude/linux/signal.h:233:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 1: ;
   ^
   __attribute__((fallthrough));
   include/linux/signal.h:233:2: note: insert 'break;' to avoid fall-through
   case 1: ;
   ^
   break;
   include/linux/signal.h:245:2: warning: unannotated fall-through between switch labels
   case 1: ;
   ^
>> :165:5: warning: no previous prototype for function 'devkmsg_sysctl_set_loglvl'
   int devkmsg_sysctl_set_loglvl(struct ctl_table int write,
   ^
   kernel/printk/printk.c:165:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int devkmsg_sysctl_set_loglvl(struct ctl_table int write,
   ^
   static
   include/linux/jhash.h:99:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 2: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   __attribute__((fallthrough));
   include/linux/jhash.h:99:2: note: insert 'break;' to avoid fall-through
   case 2: a += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   break;
   include/linux/jhash.h:100:2: warning: unannotated fall-through between switch labels
   case 1: a +=
   ^
   include/linux/signal.h:245:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 1: ;
   ^
   __attribute__((fallthrough));
   include/linux/signal.h:245:2: note: insert 'break;' to avoid fall-through
   case 1: ;
   ^
   break;
   kernel/printk/printk.cinclude/linux/jhash.h:100:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 1: a +=
   ^
   __attribute__((fallthrough));
   include/linux/jhash.h:100:2: note: insert 'break;' to avoid fall-through
   case 1: a +=
   ^
   break;
   include/linux/jhash.h:102:2: warning: unannotated fall-through between switch labels
   case 0: /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var Nothing left to add arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   include/linux/jhash.h:102:2: note: insert 'break;' to avoid fall-through
   case 0: /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var Nothing left to add arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   break;
   :2406:10: warning: 'sprintf' will always overflow; destination buffer has size 0, but format string expands to at least 33
   len = sprintf(text,
   ^
   include/linux/jhash.h:136:2: warning: unannotated fall-through between switch labels
   case 2: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   include/linux/jhash.h:136:2: note: insert '__attribute__((fallthrough));' to silence this warning
   case 2: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   __attribute__((fallthrough));
   include/linux/jhash.h:136:2: note: insert 'break;' to avoid fall-through
   case 2: b += /Dockerfile /Gemfile /Gemfile.lock /bin /boot /c /cephfs /dev /etc /home /htmldocs /include /kbuild /lib /lib32 /lib64 /libx32 /lkp-cloud /lkp-src /media /mnt /opt /patch /pkg /proc /root /run /sbin /share /srv /sys /tmp /usr /var fall through arch/ block/ certs/ crypto/ drivers/ fs/ include/ init/ ipc/ kernel/ lib/ mm/ net/ scripts/ security/ sound/ source/ tools/ usr/ virt/
   ^
   break;
   include/linux/jhash.h:137:2: warning: unannotated fall-through between switch labels
   case 1: a +=
   ^
   In file included from kernel/capability.c:13:
   In file included from include/linux/audit.h:13:
   In file included from include/linux/ptrace.h:7:
   In file included from include/linux/sched/signal.h:6:
   include/linux/signal.h:147:1: warning: unannotated fall-through between switch labels
   _SIG_SET_BINOP(sigorsets, _sig_or)
   ^
   include/linux/signal.h:133:2: note: expanded from macro '_SIG_SET_BINOP'
   case 2: ^
   include/linux/signal.h:147:1: warning: unannotated fall-through between switch labels
   include/linux/signal.h:137:2: note: expanded from macro '_SIG_SET_BINOP'
   case 1: ^
   include/linux/signal.h:150:1: warning: unannotated fall-through between switch labels
   _SIG_SET_BINOP(sigandsets, _sig_and)
   ^
   include/linux/signal.h:133:2:In file included from note: expanded from macro '_SIG_SET_BINOP'
   case 2: ^
   include/linux/signal.h:150:1: warning: unannotated fall-through between switch labels
   include/linux/signal.h:137:2: note: expanded from macro '_SIG_SET_BINOP'
   case 1: ^
   include/linux/signal.h:153:1: warning: unannotated fall-through between switch labels
   _SIG_SET_BINOP(sigandnsets, _sig_andn)
   ^
   include/linux/signal.h:133:2: note: expanded from macro '_SIG_SET_BINOP'
   case 2: kernel/sysctl_binary.c:15:
   In file included from include/linux/netdevice.h:37:
   In file included from include/linux/ethtool.h:18:
   In file included from include/uapi/linux/ethtool.h:19:
   In file included from include/linux/if_ether.h:19:
   include/linux/skbuff.h:3690:2: warning: unannotated fall-through between switch labels
   case 24: diffs |= __it_diff(a, b, 64);
   ^
--
           ^
           __attribute__((fallthrough)); 
   include/linux/mm.h:166:2: note: insert 'break;' to avoid fall-through
           case 56:
           ^
           break; 
   In file included from kernel/printk/printk.c:36:
   In file included from include/linux/syscalls.h:76:
   include/linux/signal.h:147:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   _SIG_SET_BINOP(sigorsets, _sig_or)
   ^
   include/linux/signal.h:133:2: note: expanded from macro '_SIG_SET_BINOP'
           case 2:                                                         \
           ^
   include/linux/signal.h:147:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   include/linux/signal.h:137:2: note: expanded from macro '_SIG_SET_BINOP'
           case 1:                                                         \
           ^
   include/linux/signal.h:150:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   _SIG_SET_BINOP(sigandsets, _sig_and)
   ^
   include/linux/signal.h:133:2: note: expanded from macro '_SIG_SET_BINOP'
           case 2:                                                         \
           ^
   include/linux/signal.h:150:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   include/linux/signal.h:137:2: note: expanded from macro '_SIG_SET_BINOP'
           case 1:                                                         \
           ^
   include/linux/signal.h:153:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   _SIG_SET_BINOP(sigandnsets, _sig_andn)
   ^
   include/linux/signal.h:133:2: note: expanded from macro '_SIG_SET_BINOP'
           case 2:                                                         \
           ^
   include/linux/signal.h:153:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   include/linux/signal.h:137:2: note: expanded from macro '_SIG_SET_BINOP'
           case 1:                                                         \
           ^
   include/linux/signal.h:177:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   _SIG_SET_OP(signotset, _sig_not)
   ^
   include/linux/signal.h:167:2: note: expanded from macro '_SIG_SET_OP'
           case 2: set->sig[1] = op(set->sig[1]);                          \
           ^
   include/linux/signal.h:177:1: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
   include/linux/signal.h:169:2: note: expanded from macro '_SIG_SET_OP'
           case 1: set->sig[0] = op(set->sig[0]);                          \
           ^
   include/linux/signal.h:190:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           case 1: set->sig[0] = 0;
           ^
   include/linux/signal.h:190:2: note: insert '__attribute__((fallthrough));' to silence this warning
           case 1: set->sig[0] = 0;
           ^
           __attribute__((fallthrough)); 
   include/linux/signal.h:190:2: note: insert 'break;' to avoid fall-through
           case 1: set->sig[0] = 0;
           ^
           break; 
   include/linux/signal.h:203:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           case 1: set->sig[0] = -1;
           ^
   include/linux/signal.h:203:2: note: insert '__attribute__((fallthrough));' to silence this warning
           case 1: set->sig[0] = -1;
           ^
           __attribute__((fallthrough)); 
   include/linux/signal.h:203:2: note: insert 'break;' to avoid fall-through
           case 1: set->sig[0] = -1;
           ^
           break; 
   include/linux/signal.h:233:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           case 1: ;
           ^
   include/linux/signal.h:233:2: note: insert '__attribute__((fallthrough));' to silence this warning
           case 1: ;
           ^
           __attribute__((fallthrough)); 
   include/linux/signal.h:233:2: note: insert 'break;' to avoid fall-through
           case 1: ;
           ^
           break; 
   include/linux/signal.h:245:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           case 1: ;
           ^
   include/linux/signal.h:245:2: note: insert '__attribute__((fallthrough));' to silence this warning
           case 1: ;
           ^
           __attribute__((fallthrough)); 
   include/linux/signal.h:245:2: note: insert 'break;' to avoid fall-through
           case 1: ;
           ^
           break; 
   In file included from kernel/printk/printk.c:61:
   kernel/printk/internal.h:54:20: warning: no previous prototype for function 'vprintk_func' [-Wmissing-prototypes]
   __printf(1, 0) int vprintk_func(const char *fmt, va_list args) { return 0; }
                      ^
   kernel/printk/internal.h:54:16: note: declare 'static' if the function is not intended to be used outside of this translation unit
   __printf(1, 0) int vprintk_func(const char *fmt, va_list args) { return 0; }
                  ^
                  static 
>> kernel/printk/printk.c:165:5: warning: no previous prototype for function 'devkmsg_sysctl_set_loglvl' [-Wmissing-prototypes]
   int devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write,
       ^
   kernel/printk/printk.c:165:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write,
   ^
   static 
   kernel/printk/printk.c:2406:10: warning: 'sprintf' will always overflow; destination buffer has size 0, but format string expands to at least 33 [-Wfortify-source]
                           len = sprintf(text,
                                 ^
   18 warnings generated.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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  parent reply	other threads:[~2020-06-30 18:11 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30  2:14 [PATCH] mm/sparse: only sub-section aligned range would be populated Wei Yang
2020-06-30 12:52 ` David Hildenbrand
2020-07-01  2:32   ` Wei Yang
2020-07-01  9:27     ` David Hildenbrand
2020-06-30 18:11 ` kernel test robot [this message]
2020-07-01 11:58   ` Wei Yang
     [not found]     ` <MN2PR11MB4064B0104312A3D22F1698F3E5670@MN2PR11MB4064.namprd11.prod.outlook.com>
2020-07-08 18:20       ` Nick Desaulniers
2020-07-09  0:20         ` Philip Li

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