diff options
Diffstat (limited to 'arch/loongarch/kernel/dma.c')
| -rw-r--r-- | arch/loongarch/kernel/dma.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/loongarch/kernel/dma.c b/arch/loongarch/kernel/dma.c index 7a9c6a9dd2..429555fb4e 100644 --- a/arch/loongarch/kernel/dma.c +++ b/arch/loongarch/kernel/dma.c @@ -8,17 +8,12 @@ void acpi_arch_dma_setup(struct device *dev) { int ret; - u64 mask, end = 0; + u64 mask, end; const struct bus_dma_region *map = NULL; ret = acpi_dma_get_range(dev, &map); if (!ret && map) { - const struct bus_dma_region *r = map; - - for (end = 0; r->size; r++) { - if (r->dma_start + r->size - 1 > end) - end = r->dma_start + r->size - 1; - } + end = dma_range_map_max(map); mask = DMA_BIT_MASK(ilog2(end) + 1); dev->bus_dma_limit = end; |