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Donenfeld" Cc: kbuild-all@lists.01.org, zx2c4@kernel.org, linux-kernel@vger.kernel.org Subject: [crng-random:jd/not-zero-entropy 7/12] arch/arm/include/asm/timex.h:14:63: error: implicit declaration of function 'sched_clock' Message-ID: <202204110106.XXNJ3BEs-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: git://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git jd/not-zero-entropy head: efec3e2057963ad20223fa50a657b3ca9314ed45 commit: 904df0ccc3b52e7dffc4b968b8839d63ecba08ce [7/12] arm: use sched_clock() for random_get_entropy() instead of zero config: arm-buildonly-randconfig-r001-20220410 (https://download.01.org/0day-ci/archive/20220411/202204110106.XXNJ3BEs-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git/commit/?id=904df0ccc3b52e7dffc4b968b8839d63ecba08ce git remote add crng-random git://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git git fetch --no-tags crng-random jd/not-zero-entropy git checkout 904df0ccc3b52e7dffc4b968b8839d63ecba08ce # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from include/linux/timex.h:65, from include/linux/time32.h:13, from include/linux/time.h:60, from include/linux/jiffies.h:10, from lib/random32.c:38: lib/random32.c: In function 'prandom_init_early': >> arch/arm/include/asm/timex.h:14:63: error: implicit declaration of function 'sched_clock' [-Werror=implicit-function-declaration] 14 | #define random_get_entropy() ((unsigned long)(get_cycles() ?: sched_clock())) | ^~~~~~~~~~~ lib/random32.c:469:22: note: in expansion of macro 'random_get_entropy' 469 | v1 = random_get_entropy(); | ^~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- In file included from include/linux/timex.h:65, from include/linux/time32.h:13, from include/linux/time.h:60, from include/linux/stat.h:19, from include/linux/module.h:13, from crypto/jitterentropy-kcapi.c:41: crypto/jitterentropy-kcapi.c: In function 'jent_get_nstime': >> arch/arm/include/asm/timex.h:14:63: error: implicit declaration of function 'sched_clock' [-Werror=implicit-function-declaration] 14 | #define random_get_entropy() ((unsigned long)(get_cycles() ?: sched_clock())) | ^~~~~~~~~~~ crypto/jitterentropy-kcapi.c:85:15: note: in expansion of macro 'random_get_entropy' 85 | tmp = random_get_entropy(); | ^~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/sched_clock +14 arch/arm/include/asm/timex.h 11 12 typedef unsigned long cycles_t; 13 #define get_cycles() ({ cycles_t c; read_current_timer(&c) ? 0 : c; }) > 14 #define random_get_entropy() ((unsigned long)(get_cycles() ?: sched_clock())) 15 -- 0-DAY CI Kernel Test Service https://01.org/lkp