Messages in this thread | | | Date | Sat, 28 May 2022 20:26:57 +0800 | From | kernel test robot <> | Subject | Re: [PATCH -next] smp: Move stub from main.c into smp.h |
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Hi Yue,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20220527]
url: https://github.com/intel-lab-lkp/linux/commits/Yue-Zou/smp-Move-stub-from-main-c-into-smp-h/20220528-185146 base: d3fde8ff50ab265749704bd7fbcf70d35235421f config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20220528/202205282032.H8Urbl9N-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/2efe286bd89edfa5448d29a5be89fd54df424c46 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Yue-Zou/smp-Move-stub-from-main-c-into-smp-h/20220528-185146 git checkout 2efe286bd89edfa5448d29a5be89fd54df424c46 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 prepare
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/lockdep.h:14, from include/linux/spinlock.h:62, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/slab.h:15, from include/linux/crypto.h:20, from arch/x86/kernel/asm-offsets.c:9: >> include/linux/smp.h:186:27: warning: 'setup_max_cpus' defined but not used [-Wunused-const-variable=] 186 | static const unsigned int setup_max_cpus = NR_CPUS; | ^~~~~~~~~~~~~~ -- fs/d_path.c:318:7: warning: no previous prototype for 'simple_dname' [-Wmissing-prototypes] 318 | char *simple_dname(struct dentry *dentry, char *buffer, int buflen) | ^~~~~~~~~~~~ In file included from include/linux/lockdep.h:14, from include/linux/spinlock.h:62, from include/linux/wait.h:9, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/uapi/linux/aio_abi.h:31, from include/linux/syscalls.h:77, from fs/d_path.c:2: >> include/linux/smp.h:186:27: warning: 'setup_max_cpus' defined but not used [-Wunused-const-variable=] 186 | static const unsigned int setup_max_cpus = NR_CPUS; | ^~~~~~~~~~~~~~ -- fs/io_uring.c: In function '__io_submit_flush_completions': fs/io_uring.c:3152:40: warning: variable 'prev' set but not used [-Wunused-but-set-variable] 3152 | struct io_wq_work_node *node, *prev; | ^~~~ In file included from include/linux/lockdep.h:14, from include/linux/spinlock.h:62, from include/linux/wait.h:9, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/uapi/linux/aio_abi.h:31, from include/linux/syscalls.h:77, from fs/io_uring.c:45: At top level: >> include/linux/smp.h:186:27: warning: 'setup_max_cpus' defined but not used [-Wunused-const-variable=] 186 | static const unsigned int setup_max_cpus = NR_CPUS; | ^~~~~~~~~~~~~~ -- In file included from include/linux/lockdep.h:14, from include/linux/spinlock.h:62, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/slab.h:15, from include/linux/crypto.h:20, from arch/x86/kernel/asm-offsets.c:9: >> include/linux/smp.h:186:27: warning: 'setup_max_cpus' defined but not used [-Wunused-const-variable=] 186 | static const unsigned int setup_max_cpus = NR_CPUS; | ^~~~~~~~~~~~~~
vim +/setup_max_cpus +186 include/linux/smp.h
185 > 186 static const unsigned int setup_max_cpus = NR_CPUS; 187 static inline void setup_nr_cpu_ids(void) { } 188 static inline void smp_prepare_cpus(unsigned int maxcpus) { } 189
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