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Date: Sat, 5 Feb 2022 13:52:03 +0800
From: kernel test robot <lkp@...el.com>
To: Eric Dumazet <eric.dumazet@...il.com>,
"David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
netdev <netdev@...r.kernel.org>,
Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH net-next] net: initialize init_net earlier
Hi Eric,
I love your patch! Yet something to improve:
[auto build test ERROR on net-next/master]
url: https://github.com/0day-ci/linux/commits/Eric-Dumazet/net-initialize-init_net-earlier/20220205-073957
base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git c531adaf884d313df2729ca94228317a52e46b83
config: arm-randconfig-r031-20220131 (https://download.01.org/0day-ci/archive/20220205/202202051344.7VoLsgix-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a73e4ce6a59b01f0e37037761c1e6889d539d233)
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 arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://github.com/0day-ci/linux/commit/0d2a51961bd19173f1d7cfa779b9cf82c48e4499
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Eric-Dumazet/net-initialize-init_net-earlier/20220205-073957
git checkout 0d2a51961bd19173f1d7cfa779b9cf82c48e4499
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from kernel/events/core.c:46:
In file included from include/linux/filter.h:20:
In file included from include/linux/if_vlan.h:10:
In file included from include/linux/netdevice.h:37:
>> include/net/net_namespace.h:519:34: error: non-void function does not return a value [-Werror,-Wreturn-type]
static inline net_ns_init(void) {}
^
1 error generated.
--
In file included from init/main.c:102:
>> include/net/net_namespace.h:519:34: error: non-void function does not return a value [-Werror,-Wreturn-type]
static inline net_ns_init(void) {}
^
init/main.c:769:20: warning: no previous prototype for function 'arch_post_acpi_subsys_init' [-Wmissing-prototypes]
void __init __weak arch_post_acpi_subsys_init(void) { }
^
init/main.c:769:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init __weak arch_post_acpi_subsys_init(void) { }
^
static
init/main.c:781:20: warning: no previous prototype for function 'mem_encrypt_init' [-Wmissing-prototypes]
void __init __weak mem_encrypt_init(void) { }
^
init/main.c:781:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init __weak mem_encrypt_init(void) { }
^
static
init/main.c:783:20: warning: no previous prototype for function 'poking_init' [-Wmissing-prototypes]
void __init __weak poking_init(void) { }
^
init/main.c:783:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init __weak poking_init(void) { }
^
static
3 warnings and 1 error generated.
--
kernel/fork.c:162:13: warning: no previous prototype for function 'arch_release_task_struct' [-Wmissing-prototypes]
void __weak arch_release_task_struct(struct task_struct *tsk)
^
kernel/fork.c:162:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __weak arch_release_task_struct(struct task_struct *tsk)
^
static
kernel/fork.c:764:20: warning: no previous prototype for function 'arch_task_cache_init' [-Wmissing-prototypes]
void __init __weak arch_task_cache_init(void) { }
^
kernel/fork.c:764:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void __init __weak arch_task_cache_init(void) { }
^
static
kernel/fork.c:859:12: warning: no previous prototype for function 'arch_dup_task_struct' [-Wmissing-prototypes]
int __weak arch_dup_task_struct(struct task_struct *dst,
^
kernel/fork.c:859:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __weak arch_dup_task_struct(struct task_struct *dst,
^
static
In file included from kernel/fork.c:996:
In file included from include/linux/init_task.h:18:
>> include/net/net_namespace.h:519:34: error: non-void function does not return a value [-Werror,-Wreturn-type]
static inline net_ns_init(void) {}
^
3 warnings and 1 error generated.
--
In file included from kernel/kallsyms.c:25:
In file included from include/linux/filter.h:20:
In file included from include/linux/if_vlan.h:10:
In file included from include/linux/netdevice.h:37:
>> include/net/net_namespace.h:519:34: error: non-void function does not return a value [-Werror,-Wreturn-type]
static inline net_ns_init(void) {}
^
kernel/kallsyms.c:587:12: warning: no previous prototype for function 'arch_get_kallsym' [-Wmissing-prototypes]
int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
^
kernel/kallsyms.c:587:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
^
static
1 warning and 1 error generated.
--
In file included from kernel/sched/core.c:13:
In file included from kernel/sched/sched.h:49:
In file included from include/linux/init_task.h:18:
>> include/net/net_namespace.h:519:34: error: non-void function does not return a value [-Werror,-Wreturn-type]
static inline net_ns_init(void) {}
^
kernel/sched/core.c:6401:35: warning: no previous prototype for function 'schedule_user' [-Wmissing-prototypes]
asmlinkage __visible void __sched schedule_user(void)
^
kernel/sched/core.c:6401:22: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage __visible void __sched schedule_user(void)
^
static
1 warning and 1 error generated.
--
In file included from kernel/sched/fair.c:23:
In file included from kernel/sched/sched.h:49:
In file included from include/linux/init_task.h:18:
>> include/net/net_namespace.h:519:34: error: non-void function does not return a value [-Werror,-Wreturn-type]
static inline net_ns_init(void) {}
^
kernel/sched/fair.c:5477:6: warning: no previous prototype for function 'init_cfs_bandwidth' [-Wmissing-prototypes]
void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {}
^
kernel/sched/fair.c:5477:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void init_cfs_bandwidth(struct cfs_bandwidth *cfs_b) {}
^
static
kernel/sched/fair.c:11703:6: warning: no previous prototype for function 'free_fair_sched_group' [-Wmissing-prototypes]
void free_fair_sched_group(struct task_group *tg) { }
^
kernel/sched/fair.c:11703:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void free_fair_sched_group(struct task_group *tg) { }
^
static
kernel/sched/fair.c:11705:5: warning: no previous prototype for function 'alloc_fair_sched_group' [-Wmissing-prototypes]
int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
^
kernel/sched/fair.c:11705:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int alloc_fair_sched_group(struct task_group *tg, struct task_group *parent)
^
static
kernel/sched/fair.c:11710:6: warning: no previous prototype for function 'online_fair_sched_group' [-Wmissing-prototypes]
void online_fair_sched_group(struct task_group *tg) { }
^
kernel/sched/fair.c:11710:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void online_fair_sched_group(struct task_group *tg) { }
^
static
kernel/sched/fair.c:11712:6: warning: no previous prototype for function 'unregister_fair_sched_group' [-Wmissing-prototypes]
void unregister_fair_sched_group(struct task_group *tg) { }
^
kernel/sched/fair.c:11712:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void unregister_fair_sched_group(struct task_group *tg) { }
^
static
5 warnings and 1 error generated.
--
In file included from kernel/sched/rt.c:6:
In file included from kernel/sched/sched.h:49:
In file included from include/linux/init_task.h:18:
>> include/net/net_namespace.h:519:34: error: non-void function does not return a value [-Werror,-Wreturn-type]
static inline net_ns_init(void) {}
^
kernel/sched/rt.c:262:6: warning: no previous prototype for function 'unregister_rt_sched_group' [-Wmissing-prototypes]
void unregister_rt_sched_group(struct task_group *tg) { }
^
kernel/sched/rt.c:262:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void unregister_rt_sched_group(struct task_group *tg) { }
^
static
kernel/sched/rt.c:264:6: warning: no previous prototype for function 'free_rt_sched_group' [-Wmissing-prototypes]
void free_rt_sched_group(struct task_group *tg) { }
^
kernel/sched/rt.c:264:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void free_rt_sched_group(struct task_group *tg) { }
^
static
kernel/sched/rt.c:266:5: warning: no previous prototype for function 'alloc_rt_sched_group' [-Wmissing-prototypes]
int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent)
^
kernel/sched/rt.c:266:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
int alloc_rt_sched_group(struct task_group *tg, struct task_group *parent)
^
static
kernel/sched/rt.c:680:6: warning: no previous prototype for function 'sched_rt_bandwidth_account' [-Wmissing-prototypes]
bool sched_rt_bandwidth_account(struct rt_rq *rt_rq)
^
kernel/sched/rt.c:680:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
bool sched_rt_bandwidth_account(struct rt_rq *rt_rq)
^
static
4 warnings and 1 error generated.
vim +519 include/net/net_namespace.h
515
516 #ifdef CONFIG_NET
517 void net_ns_init(void);
518 #else
> 519 static inline net_ns_init(void) {}
520 #endif
521
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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