tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b66484cd74706fa8681d051840fe4b18a3da40ff commit: 51a021244b9d579be6b4f8c15c493a76deb2a79e atomic64: no need for CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE date: 2 days ago config: frv-allmodconfig (attached as .config) compiler: frv-linux-gcc (GCC) 6.2.0 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 51a021244b9d579be6b4f8c15c493a76deb2a79e # save the attached .config to linux build tree make.cross ARCH=frv All errors (new ones prefixed by >>): In file included from include/linux/init.h:4:0, from lib/atomic64_test.c:14: lib/atomic64_test.c: In function 'test_atomic64': lib/atomic64_test.c:208:9: error: implicit declaration of function 'atomic64_add_unless' [-Werror=implicit-function-declaration] BUG_ON(atomic64_add_unless(&v, one, v0)); ^ include/linux/compiler.h:168:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ lib/atomic64_test.c:208:2: note: in expansion of macro 'BUG_ON' BUG_ON(atomic64_add_unless(&v, one, v0)); ^~~~~~ >> lib/atomic64_test.c:217:9: error: implicit declaration of function 'atomic64_dec_if_positive' [-Werror=implicit-function-declaration] BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1)); ^ include/linux/compiler.h:168:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ lib/atomic64_test.c:217:2: note: in expansion of macro 'BUG_ON' BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1)); ^~~~~~ lib/atomic64_test.c:230:10: error: implicit declaration of function 'atomic64_inc_not_zero' [-Werror=implicit-function-declaration] BUG_ON(!atomic64_inc_not_zero(&v)); ^ include/linux/compiler.h:168:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ lib/atomic64_test.c:230:2: note: in expansion of macro 'BUG_ON' BUG_ON(!atomic64_inc_not_zero(&v)); ^~~~~~ cc1: some warnings being treated as errors vim +/atomic64_dec_if_positive +217 lib/atomic64_test.c 978e5a36 Boqun Feng 2015-11-04 202 DEC_RETURN_FAMILY_TEST(64, v0); 86a89380 Luca Barbieri 2010-02-24 203 978e5a36 Boqun Feng 2015-11-04 204 XCHG_FAMILY_TEST(64, v0, v1); 978e5a36 Boqun Feng 2015-11-04 205 CMPXCHG_FAMILY_TEST(64, v0, v1, v2); 86a89380 Luca Barbieri 2010-02-24 206 86a89380 Luca Barbieri 2010-02-24 207 INIT(v0); 9efbcd59 Luca Barbieri 2010-03-01 @208 BUG_ON(atomic64_add_unless(&v, one, v0)); 86a89380 Luca Barbieri 2010-02-24 209 BUG_ON(v.counter != r); 86a89380 Luca Barbieri 2010-02-24 210 86a89380 Luca Barbieri 2010-02-24 211 INIT(v0); 9efbcd59 Luca Barbieri 2010-03-01 212 BUG_ON(!atomic64_add_unless(&v, one, v1)); 86a89380 Luca Barbieri 2010-02-24 213 r += one; 86a89380 Luca Barbieri 2010-02-24 214 BUG_ON(v.counter != r); 86a89380 Luca Barbieri 2010-02-24 215 86a89380 Luca Barbieri 2010-02-24 216 INIT(onestwos); 86a89380 Luca Barbieri 2010-02-24 @217 BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1)); 86a89380 Luca Barbieri 2010-02-24 218 r -= one; 86a89380 Luca Barbieri 2010-02-24 219 BUG_ON(v.counter != r); 86a89380 Luca Barbieri 2010-02-24 220 :::::: The code at line 217 was first introduced by commit :::::: 86a8938078a8bb518c5376de493e348c7490d506 lib: Add self-test for atomic64_t :::::: TO: Luca Barbieri <luca@xxxxxxxxxxxxxxxxx> :::::: CC: H. Peter Anvin <hpa@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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