Hi Dave, [auto build test WARNING on linus/master] [also build test WARNING on v4.13-rc3] [cannot apply to next-20170804] [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/Dave-Jiang/Adding-blk-mq-and-DMA-support-to-pmem-block-driver/20170804-191719 config: i386-randconfig-x003-201731 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): drivers//dma/dmaengine.c: In function 'dmaengine_unmap': >> drivers//dma/dmaengine.c:1140:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] sg = (struct scatterlist *)unmap->addr[i]; ^ drivers//dma/dmaengine.c:1151:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] sg = (struct scatterlist *)unmap->addr[i]; ^ Cyclomatic Complexity 5 include/linux/compiler.h:__read_once_size Cyclomatic Complexity 5 include/linux/compiler.h:__write_once_size Cyclomatic Complexity 3 arch/x86/include/asm/bitops.h:set_bit Cyclomatic Complexity 3 arch/x86/include/asm/bitops.h:clear_bit Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:constant_test_bit Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:variable_test_bit Cyclomatic Complexity 1 arch/x86/include/asm/bitops.h:fls Cyclomatic Complexity 1 include/linux/log2.h:__ilog2_u32 Cyclomatic Complexity 1 include/linux/list.h:__list_add_valid Cyclomatic Complexity 1 include/linux/list.h:__list_del_entry_valid Cyclomatic Complexity 1 include/linux/list.h:__list_del Cyclomatic Complexity 2 include/linux/list.h:__list_del_entry Cyclomatic Complexity 1 include/linux/err.h:ERR_PTR Cyclomatic Complexity 1 include/linux/err.h:PTR_ERR Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_read Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_set Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_inc Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_dec Cyclomatic Complexity 1 arch/x86/include/asm/atomic.h:atomic_dec_and_test Cyclomatic Complexity 1 include/asm-generic/getorder.h:__get_order Cyclomatic Complexity 1 arch/x86/include/asm/processor.h:rep_nop Cyclomatic Complexity 1 arch/x86/include/asm/processor.h:cpu_relax Cyclomatic Complexity 1 include/linux/jiffies.h:_msecs_to_jiffies Cyclomatic Complexity 5 include/linux/jiffies.h:msecs_to_jiffies Cyclomatic Complexity 1 include/linux/refcount.h:refcount_set Cyclomatic Complexity 1 include/linux/kref.h:kref_init Cyclomatic Complexity 1 include/linux/kobject.h:kobject_name Cyclomatic Complexity 1 include/linux/rculist.h:list_del_rcu Cyclomatic Complexity 1 include/linux/device.h:dev_to_node Cyclomatic Complexity 1 include/linux/dma-debug.h:debug_dma_unmap_page Cyclomatic Complexity 1 include/linux/dma-debug.h:debug_dma_unmap_sg Cyclomatic Complexity 1 include/linux/dma-mapping.h:valid_dma_direction Cyclomatic Complexity 1 arch/x86/include/asm/dma-mapping.h:get_arch_dma_ops Cyclomatic Complexity 1 include/linux/module.h:__module_get Cyclomatic Complexity 1 include/linux/module.h:try_module_get Cyclomatic Complexity 1 include/linux/module.h:module_put Cyclomatic Complexity 1 include/linux/dmaengine.h:txd_lock Cyclomatic Complexity 1 include/linux/dmaengine.h:txd_unlock Cyclomatic Complexity 1 include/linux/dmaengine.h:txd_clear_parent Cyclomatic Complexity 1 include/linux/dmaengine.h:txd_clear_next Cyclomatic Complexity 1 include/linux/dmaengine.h:txd_next Cyclomatic Complexity 1 include/linux/dmaengine.h:__dma_cap_set Cyclomatic Complexity 1 include/linux/dmaengine.h:__dma_cap_clear Cyclomatic Complexity 1 include/linux/dmaengine.h:dma_async_issue_pending Cyclomatic Complexity 56 include/linux/slab.h:kmalloc_index Cyclomatic Complexity 67 include/linux/slab.h:kmalloc_large Cyclomatic Complexity 9 include/linux/slab.h:kmalloc Cyclomatic Complexity 1 include/linux/slab.h:kzalloc Cyclomatic Complexity 1 drivers//dma/dmaengine.c:dma_chan_to_owner Cyclomatic Complexity 2 drivers//dma/dmaengine.c:balance_ref_count Cyclomatic Complexity 5 include/linux/dmaengine.h:dma_async_is_tx_complete Cyclomatic Complexity 2 include/linux/dmaengine.h:__dma_has_cap Cyclomatic Complexity 7 drivers//dma/dmaengine.c:device_has_all_tx_types Cyclomatic Complexity 9 drivers//dma/dmaengine.c:dma_chan_get Cyclomatic Complexity 3 include/linux/device.h:dev_name Cyclomatic Complexity 1 include/linux/dmaengine.h:dma_chan_name Cyclomatic Complexity 10 include/linux/dma-mapping.h:get_dma_ops Cyclomatic Complexity 3 include/linux/bitops.h:get_count_order Cyclomatic Complexity 9 include/linux/bitmap.h:bitmap_fill Cyclomatic Complexity 7 drivers//dma/dmaengine.c:dma_channel_table_init Cyclomatic Complexity 9 include/linux/bitmap.h:bitmap_zero Cyclomatic Complexity 1 include/linux/dmaengine.h:__dma_cap_zero Cyclomatic Complexity 1 include/linux/rcupdate.h:rcu_read_lock Cyclomatic Complexity 1 include/linux/rcupdate.h:rcu_read_unlock Cyclomatic Complexity 1 include/linux/err.h:IS_ERR Cyclomatic Complexity 3 include/linux/err.h:IS_ERR_OR_NULL Cyclomatic Complexity 3 include/acpi/acpi_bus.h:is_acpi_device_node Cyclomatic Complexity 1 include/linux/acpi.h:has_acpi_companion Cyclomatic Complexity 2 include/linux/cpumask.h:cpumask_check Cyclomatic Complexity 1 include/linux/cpumask.h:cpumask_test_cpu Cyclomatic Complexity 3 drivers//dma/dmaengine.c:dma_chan_is_local Cyclomatic Complexity 3 include/linux/cpumask.h:cpumask_next Cyclomatic Complexity 9 include/linux/bitmap.h:bitmap_and Cyclomatic Complexity 17 include/linux/bitmap.h:bitmap_equal Cyclomatic Complexity 1 drivers//dma/dmaengine.c:__dma_device_satisfies_mask Cyclomatic Complexity 27 drivers//dma/dmaengine.c:private_candidate Cyclomatic Complexity 11 drivers//dma/dmaengine.c:find_candidate Cyclomatic Complexity 7 drivers//dma/dmaengine.c:dma_filter_match Cyclomatic Complexity 3 include/linux/dmaengine.h:dmaengine_synchronize Cyclomatic Complexity 19 drivers//dma/dmaengine.c:dma_chan_put Cyclomatic Complexity 36 drivers//dma/dmaengine.c:min_chan Cyclomatic Complexity 18 drivers//dma/dmaengine.c:dma_channel_rebalance Cyclomatic Complexity 3 include/linux/dma-mapping.h:dma_unmap_sg_attrs Cyclomatic Complexity 3 include/linux/dma-mapping.h:dma_unmap_page_attrs Cyclomatic Complexity 1 drivers//dma/dmaengine.c:__get_unmap_pool Cyclomatic Complexity 4 drivers//dma/dmaengine.c:chan_dev_release Cyclomatic Complexity 3 drivers//dma/dmaengine.c:dev_to_dma_chan Cyclomatic Complexity 3 drivers//dma/dmaengine.c:in_use_show Cyclomatic Complexity 4 drivers//dma/dmaengine.c:bytes_transferred_show Cyclomatic Complexity 4 drivers//dma/dmaengine.c:memcpy_count_show Cyclomatic Complexity 1 include/linux/idr.h:ida_get_new Cyclomatic Complexity 3 drivers//dma/dmaengine.c:get_dma_id Cyclomatic Complexity 4 include/linux/rculist.h:__list_add_rcu Cyclomatic Complexity 1 include/linux/rculist.h:list_add_tail_rcu Cyclomatic Complexity 12 drivers//dma/dmaengine.c:dmaengine_unmap vim +1140 drivers//dma/dmaengine.c 1128 1129 static void dmaengine_unmap(struct kref *kref) 1130 { 1131 struct dmaengine_unmap_data *unmap = container_of(kref, typeof(*unmap), kref); 1132 struct device *dev = unmap->dev; 1133 int cnt, i, sg_nents; 1134 struct scatterlist *sg; 1135 1136 sg_nents = dma_unmap_data_sg_to_nents(unmap, unmap->map_cnt); 1137 if (sg_nents) { 1138 i = 0; 1139 cnt = 1; > 1140 sg = (struct scatterlist *)unmap->addr[i]; 1141 dma_unmap_sg(dev, sg, sg_nents, DMA_TO_DEVICE); 1142 } else { 1143 cnt = unmap->to_cnt; 1144 for (i = 0; i < cnt; i++) 1145 dma_unmap_page(dev, unmap->addr[i], unmap->len, 1146 DMA_TO_DEVICE); 1147 } 1148 1149 sg_nents = dma_unmap_data_sg_from_nents(unmap, unmap->map_cnt); 1150 if (sg_nents) { 1151 sg = (struct scatterlist *)unmap->addr[i]; 1152 dma_unmap_sg(dev, sg, sg_nents, DMA_FROM_DEVICE); 1153 cnt++; 1154 i++; 1155 } else { 1156 cnt += unmap->from_cnt; 1157 for (; i < cnt; i++) 1158 dma_unmap_page(dev, unmap->addr[i], unmap->len, 1159 DMA_FROM_DEVICE); 1160 } 1161 1162 cnt += unmap->bidi_cnt; 1163 for (; i < cnt; i++) { 1164 if (unmap->addr[i] == 0) 1165 continue; 1166 dma_unmap_page(dev, unmap->addr[i], unmap->len, 1167 DMA_BIDIRECTIONAL); 1168 } 1169 cnt = unmap->map_cnt; 1170 mempool_free(unmap, __get_unmap_pool(cnt)->pool); 1171 } 1172 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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