kbuild test robot <l...@intel.com> wrote: > Hi Florian, > > [auto build test WARNING on net/master] > > url: > https://github.com/0day-ci/linux/commits/Florian-Westphal/rhashtable-avoid-large-lock-array-allocations/20160812-101458 > config: x86_64-randconfig-x015-201632 (attached as .config) > compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > All warnings (new ones prefixed by >>): > > In file included from lib/rhashtable.c:18:0: > lib/rhashtable.c: In function 'rhashtable_init': > >> lib/rhashtable.c:34:30: warning: division by zero [-Wdiv-by-zero] > 2 * L1_CACHE_BYTES / sizeof(spinlock_t), 1)
I will send a v2 tomorrow, perhaps its better to just go for 32UL instead of this construct after all.
