Hi Tang, [auto build test WARNING on pm/linux-next] [also build test WARNING on v4.10-rc7 next-20170208] [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/yuantian-tang-nxp-com/cpufreq-qoriq-added-arm64-socs-support/20170208-163748 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: arm-multi_v7_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705 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 # save the attached .config to linux build tree make.cross ARCH=arm Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): drivers/cpufreq/qoriq-cpufreq.c: In function 'qoriq_cpufreq_cpu_init': >> drivers/cpufreq/qoriq-cpufreq.c:230:2: warning: 'pnode' may be used >> uninitialized in this function [-Wmaybe-uninitialized] of_node_put(pnode); ^~~~~~~~~~~~~~~~~~ vim +/pnode +230 drivers/cpufreq/qoriq-cpufreq.c defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 214 pr_err("invalid frequency table: %d\n", ret); defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 215 goto err_nomem1; defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 216 } defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 217 defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 218 data->table = table; defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 219 defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 220 /* update ->cpus if we have cluster, no harm if not */ a4f20742 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2015-03-13 221 set_affected_cpus(policy); a4f20742 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2015-03-13 222 policy->driver_data = data; defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 223 906fe033 drivers/cpufreq/ppc-corenet-cpufreq.c Ed Swarthout 2014-06-05 224 /* Minimum transition latency is 12 platform clocks */ 906fe033 drivers/cpufreq/ppc-corenet-cpufreq.c Ed Swarthout 2014-06-05 225 u64temp = 12ULL * NSEC_PER_SEC; a4f20742 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2015-03-13 226 do_div(u64temp, get_bus_freq()); 906fe033 drivers/cpufreq/ppc-corenet-cpufreq.c Ed Swarthout 2014-06-05 227 policy->cpuinfo.transition_latency = u64temp + 1; 6712d293 drivers/cpufreq/ppc-corenet-cpufreq.c Tim Gardner 2014-04-28 228 defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 229 of_node_put(np); 8a95c144 drivers/cpufreq/qoriq-cpufreq.c Tang Yuantian 2015-06-04 @230 of_node_put(pnode); defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 231 defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 232 return 0; defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 233 defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 234 err_nomem1: defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 235 kfree(table); 8a95c144 drivers/cpufreq/qoriq-cpufreq.c Tang Yuantian 2015-06-04 236 err_pclk: 8a95c144 drivers/cpufreq/qoriq-cpufreq.c Tang Yuantian 2015-06-04 237 kfree(data->pclk); defa4c73 drivers/cpufreq/ppc-corenet-cpufreq.c Tang Yuantian 2013-06-05 238 err_nomem2: :::::: The code at line 230 was first introduced by commit :::::: 8a95c1441c799bb0f0d31cdb11523d91923d51a7 cpufreq: qoriq: optimize the CPU frequency switching time :::::: TO: Tang Yuantian <yuantian.t...@freescale.com> :::::: CC: Rafael J. Wysocki <rafael.j.wyso...@intel.com> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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