tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.sched/core head: 8b88220c2b48c511c3dc8210d92a1d99d180dd69 commit: b8dca9f8769ff647742c30f21f5fab0b6a591578 [138/170] sched/headers: Split <linux/sched/task_stack.h> out of <linux/sched.h> config: mips-loongson3_defconfig (attached as .config) compiler: mips64el-linux-gnuabi64-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 git checkout b8dca9f8769ff647742c30f21f5fab0b6a591578 # save the attached .config to linux build tree make.cross ARCH=mips
All warnings (new ones prefixed by >>): In file included from arch/mips/include/asm/thread_info.h:15:0, from include/linux/thread_info.h:25, from include/asm-generic/current.h:4, from ./arch/mips/include/generated/asm/current.h:1, from include/linux/mutex.h:13, from include/linux/kernfs.h:13, from include/linux/sysfs.h:15, from include/linux/kobject.h:21, from include/linux/device.h:17, from include/linux/node.h:17, from include/linux/cpu.h:16, from arch/mips/loongson64/loongson-3/smp.c:18: arch/mips/loongson64/loongson-3/smp.c: In function 'loongson3_boot_secondary': arch/mips/include/asm/processor.h:384:41: error: implicit declaration of function 'task_stack_page' [-Werror=implicit-function-declaration] #define __KSTK_TOS(tsk) ((unsigned long)task_stack_page(tsk) + \ ^ >> arch/mips/loongson64/loongson-3/smp.c:393:32: note: in expansion of macro >> '__KSTK_TOS' startargs[1] = (unsigned long)__KSTK_TOS(idle); ^~~~~~~~~~ cc1: some warnings being treated as errors vim +/__KSTK_TOS +393 arch/mips/loongson64/loongson-3/smp.c 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 377 { c4a987db arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 378 init_cpu_present(cpu_possible_mask); c4a987db arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 379 per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 380 } 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 381 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 382 /* 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 383 * Setup the PC, SP, and GP of a secondary processor and start it runing! 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 384 */ 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 385 static void loongson3_boot_secondary(int cpu, struct task_struct *idle) 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 386 { 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 387 unsigned long startargs[4]; 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 388 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 389 pr_info("Booting CPU#%d...\n", cpu); 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 390 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 391 /* startargs[] are initial PC, SP and GP for secondary CPU */ 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 392 startargs[0] = (unsigned long)&smp_bootstrap; 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 @393 startargs[1] = (unsigned long)__KSTK_TOS(idle); 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 394 startargs[2] = (unsigned long)task_thread_info(idle); 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 395 startargs[3] = 0; 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 396 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 397 pr_debug("CPU#%d, func_pc=%lx, sp=%lx, gp=%lx\n", 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 398 cpu, startargs[0], startargs[1], startargs[2]); 300459d5 arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-03-21 399 ec0f8d3f arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-11-04 400 loongson3_ipi_write64(startargs[3], ec0f8d3f arch/mips/loongson/loongson-3/smp.c Huacai Chen 2014-11-04 401 (void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x18)); :::::: The code at line 393 was first introduced by commit :::::: 300459d558725cdada5ddebbe52c24ef6e1853d3 MIPS: Loongson 3: Add Loongson-3 SMP support :::::: TO: Huacai Chen <che...@lemote.com> :::::: CC: Ralf Baechle <r...@linux-mips.org> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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