tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: d68dc6ee371ec5466be9b2d76bdca0b360940adc commit: 90d2bbc1ade2216bda17fb582a1aaabf7567478f [1613/1613] LoongArch: use arch specific phys_to_dma config: loongarch-randconfig-r111-20241210 (https://download.01.org/0day-ci/archive/20241214/202412141716.TzMSDkUc-lkp@i...) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20241214/202412141716.TzMSDkUc-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412141716.TzMSDkUc-lkp@intel.com/ sparse warnings: (new ones prefixed by >>)

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arch/loongarch/kernel/dma.c:37:42: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void volatile * @@ arch/loongarch/kernel/dma.c:37:42: sparse: expected void const volatile [noderef] __iomem *addr arch/loongarch/kernel/dma.c:37:42: sparse: got void volatile * arch/loongarch/kernel/dma.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/slab.h, ...): include/linux/page-flags.h:242:46: sparse: sparse: self-comparison always evaluates to false

vim +37 arch/loongarch/kernel/dma.c 29 30 void acpi_arch_dma_setup(struct device *dev) 31 { 32 int ret; 33 u64 mask, end = 0; 34 const struct bus_dma_region *map = NULL; 35 36 if (node_id_offset == 0) {

37 node_id_offset = ((readl(LS7A_DMA_CFG) & LS7A_DMA_NODE_MASK) >> LS7A_DMA_NODE_SHF); 38 node_id_offset += 36; 39 } 40 41 ret = acpi_dma_get_range(dev, &map); 42 if (!ret && map) { 43 const struct bus_dma_region *r = map; 44 45 for (end = 0; r->size; r++) { 46 if (r->dma_start + r->size - 1 > end) 47 end = r->dma_start + r->size - 1; 48 } 49 50 mask = DMA_BIT_MASK(ilog2(end) + 1); 51 dev->bus_dma_limit = end; 52 dev->dma_range_map = map; 53 dev->coherent_dma_mask = min(dev->coherent_dma_mask, mask); 54 *dev->dma_mask = min(*dev->dma_mask, mask); 55 } 56

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