| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20200701115816.GB4979@L-31X9LVDL-1304.local>
Date: Wed, 1 Jul 2020 19:58:16 +0800
From: Wei Yang <richard.weiyang@...ux.alibaba.com>
To: kernel test robot <lkp@...el.com>
Cc: Wei Yang <richard.weiyang@...ux.alibaba.com>,
dan.j.williams@...el.com, akpm@...ux-foundation.org,
kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/sparse: only sub-section aligned range would be
populated
On Wed, Jul 01, 2020 at 02:11:10AM +0800, kernel test robot wrote:
>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@...el.com>
>
Sorry, I don't follow up with this error report.
It looks like a build error, while I just removes some check and the build
pass from my side. Confused with this error report.
>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
--
Wei Yang
Help you, Help me
Powered by blists - more mailing lists