Hi Pavel, Thank you for the patch! Yet something to improve: [auto build test ERROR on mmotm/master] [also build test ERROR on v4.17-rc6] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Pavel-Tatashin/ksm-replace-jhash2-with-faster-hash/20180527-032512 base: git://git.cmpxchg.org/linux-mmotm.git master config: i386-randconfig-s0-201821 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): mm/ksm.c: In function 'fasthash': >> mm/ksm.c:338:15: error: implicit declaration of function 'xxhash' [-Werror=implicit-function-declaration] return (u32)xxhash(input, length, 0); ^~~~~~ cc1: some warnings being treated as errors vim +/xxhash +338 mm/ksm.c 331 332 static u32 fasthash(const void *input, size_t length) 333 { 334 if (static_branch_likely(&ksm_use_crc32c)) 335 return crc32c(0, input, length); 336 337 if (static_branch_likely(&ksm_use_xxhash)) > 338 return (u32)xxhash(input, length, 0); 339 340 /* Is done only once on the first call of fasthash() */ 341 fasthash_setup(); 342 343 /* Now, that we know the hash alg., calculate checksum for zero page */ 344 zero_checksum = fasthash(ZERO_PAGE(0), PAGE_SIZE); 345 346 return fasthash(input, length); 347 } 348 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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