Hi Keith, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.20-rc7 next-20181218] [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/Dan-Williams/mm-Randomize-free-memory/20181218-130230 config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=arm64 All errors (new ones prefixed by >>): arch/arm64/kernel/smp.c: In function 'acpi_parse_and_init_cpus': >> arch/arm64/kernel/smp.c:577:11: error: passing argument 2 of 'acpi_table_parse_madt' from incompatible pointer type [-Werror=incompatible-pointer-types] acpi_parse_gic_cpu_interface, 0); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from arch/arm64/kernel/smp.c:20:0: include/linux/acpi.h:249:5: note: expected 'acpi_tbl_entry_handler {aka int (*)(union acpi_subtable_headers *, const long unsigned int)}' but argument is of type 'int (*)(struct acpi_subtable_header *, const long unsigned int)' int acpi_table_parse_madt(enum acpi_madt_type id, ^~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors -- arch/arm64/kernel/acpi_numa.c: In function 'acpi_map_cpus_to_nodes': >> arch/arm64/kernel/acpi_numa.c:88:10: error: passing argument 4 of 'acpi_table_parse_entries' from incompatible pointer type [-Werror=incompatible-pointer-types] acpi_parse_gicc_pxm, 0); ^~~~~~~~~~~~~~~~~~~ In file included from arch/arm64/kernel/acpi_numa.c:19:0: include/linux/acpi.h:242:12: note: expected 'acpi_tbl_entry_handler {aka int (*)(union acpi_subtable_headers *, const long unsigned int)}' but argument is of type 'int (*)(struct acpi_subtable_header *, const long unsigned int)' int __init acpi_table_parse_entries(char *id, unsigned long table_size, ^~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/acpi_table_parse_madt +577 arch/arm64/kernel/smp.c e1896249 Lorenzo Pieralisi 2018-06-25 566 e1896249 Lorenzo Pieralisi 2018-06-25 567 static void __init acpi_parse_and_init_cpus(void) e1896249 Lorenzo Pieralisi 2018-06-25 568 { e1896249 Lorenzo Pieralisi 2018-06-25 569 int i; e1896249 Lorenzo Pieralisi 2018-06-25 570 e1896249 Lorenzo Pieralisi 2018-06-25 571 /* e1896249 Lorenzo Pieralisi 2018-06-25 572 * do a walk of MADT to determine how many CPUs e1896249 Lorenzo Pieralisi 2018-06-25 573 * we have including disabled CPUs, and get information e1896249 Lorenzo Pieralisi 2018-06-25 574 * we need for SMP init. e1896249 Lorenzo Pieralisi 2018-06-25 575 */ e1896249 Lorenzo Pieralisi 2018-06-25 576 acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, e1896249 Lorenzo Pieralisi 2018-06-25 @577 acpi_parse_gic_cpu_interface, 0); e1896249 Lorenzo Pieralisi 2018-06-25 578 e1896249 Lorenzo Pieralisi 2018-06-25 579 /* e1896249 Lorenzo Pieralisi 2018-06-25 580 * In ACPI, SMP and CPU NUMA information is provided in separate e1896249 Lorenzo Pieralisi 2018-06-25 581 * static tables, namely the MADT and the SRAT. e1896249 Lorenzo Pieralisi 2018-06-25 582 * e1896249 Lorenzo Pieralisi 2018-06-25 583 * Thus, it is simpler to first create the cpu logical map through e1896249 Lorenzo Pieralisi 2018-06-25 584 * an MADT walk and then map the logical cpus to their node ids e1896249 Lorenzo Pieralisi 2018-06-25 585 * as separate steps. e1896249 Lorenzo Pieralisi 2018-06-25 586 */ e1896249 Lorenzo Pieralisi 2018-06-25 587 acpi_map_cpus_to_nodes(); e1896249 Lorenzo Pieralisi 2018-06-25 588 e1896249 Lorenzo Pieralisi 2018-06-25 589 for (i = 0; i < nr_cpu_ids; i++) e1896249 Lorenzo Pieralisi 2018-06-25 590 early_map_cpu_to_node(i, acpi_numa_get_nid(i)); e1896249 Lorenzo Pieralisi 2018-06-25 591 } 0f078336 Lorenzo Pieralisi 2015-05-13 592 #else e1896249 Lorenzo Pieralisi 2018-06-25 593 #define acpi_parse_and_init_cpus(...) do { } while (0) 0f078336 Lorenzo Pieralisi 2015-05-13 594 #endif 0f078336 Lorenzo Pieralisi 2015-05-13 595 :::::: The code at line 577 was first introduced by commit :::::: e189624916961c735c18e3c75acc478661403830 arm64: numa: rework ACPI NUMA initialization :::::: TO: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx> :::::: CC: Will Deacon <will.deacon@xxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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