Hi Stephen, [auto build test ERROR on linus/master] [also build test ERROR on v4.11-rc2 next-20170310] [cannot apply to glikely/devicetree/next] [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/Stephen-Boyd/of-Mark-property-value-as-const/20170317-143414 config: powerpc-allnoconfig (attached as .config) compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=powerpc All errors (new ones prefixed by >>): arch/powerpc/kernel/pci_32.c: In function 'pcibios_make_OF_bus_map': >> arch/powerpc/kernel/pci_32.c:141:10: error: passing argument 1 of 'memcpy' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers] memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count); ^~~~~~~~ In file included from include/linux/string.h:18:0, from include/uapi/linux/uuid.h:21, from include/linux/uuid.h:19, from include/linux/mod_devicetable.h:12, from include/linux/pci.h:20, from arch/powerpc/kernel/pci_32.c:6: arch/powerpc/include/asm/string.h:21:15: note: expected 'void *' but argument is of type 'const void *' extern void * memcpy(void *,const void *,__kernel_size_t); ^~~~~~ cc1: all warnings being treated as errors vim +141 arch/powerpc/kernel/pci_32.c e05b3b4a Paul Mackerras 2006-01-15 125 */ e05b3b4a Paul Mackerras 2006-01-15 126 for (i=0; i<pci_bus_count; i++) e05b3b4a Paul Mackerras 2006-01-15 127 pci_to_OF_bus_map[i] = 0xff; e05b3b4a Paul Mackerras 2006-01-15 128 e05b3b4a Paul Mackerras 2006-01-15 129 /* For each hose, we begin searching bridges */ a4c9e328 Kumar Gala 2007-06-27 130 list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { 44ef3390 Stephen Rothwell 2007-12-10 131 struct device_node* node = hose->dn; 44ef3390 Stephen Rothwell 2007-12-10 132 e05b3b4a Paul Mackerras 2006-01-15 133 if (!node) e05b3b4a Paul Mackerras 2006-01-15 134 continue; e05b3b4a Paul Mackerras 2006-01-15 135 make_one_node_map(node, hose->first_busno); e05b3b4a Paul Mackerras 2006-01-15 136 } 8c8dc322 Stephen Rothwell 2007-04-24 137 dn = of_find_node_by_path("/"); 8c8dc322 Stephen Rothwell 2007-04-24 138 map_prop = of_find_property(dn, "pci-OF-bus-map", NULL); a7f67bdf Jeremy Kerr 2006-07-12 139 if (map_prop) { a7f67bdf Jeremy Kerr 2006-07-12 140 BUG_ON(pci_bus_count > map_prop->length); a7f67bdf Jeremy Kerr 2006-07-12 @141 memcpy(map_prop->value, pci_to_OF_bus_map, pci_bus_count); a7f67bdf Jeremy Kerr 2006-07-12 142 } 8c8dc322 Stephen Rothwell 2007-04-24 143 of_node_put(dn); e05b3b4a Paul Mackerras 2006-01-15 144 #ifdef DEBUG e05b3b4a Paul Mackerras 2006-01-15 145 printk("PCI->OF bus map:\n"); e05b3b4a Paul Mackerras 2006-01-15 146 for (i=0; i<pci_bus_count; i++) { e05b3b4a Paul Mackerras 2006-01-15 147 if (pci_to_OF_bus_map[i] == 0xff) e05b3b4a Paul Mackerras 2006-01-15 148 continue; e05b3b4a Paul Mackerras 2006-01-15 149 printk("%d -> %d\n", i, pci_to_OF_bus_map[i]); :::::: The code at line 141 was first introduced by commit :::::: a7f67bdf2c9f24509b8e81e0f35573b611987c80 [POWERPC] Constify & voidify get_property() :::::: TO: Jeremy Kerr <jk@xxxxxxxxxx> :::::: CC: Paul Mackerras <paulus@xxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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