diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/device.c | 4 | ||||
| -rw-r--r-- | drivers/of/of_net.c | 39 | ||||
| -rw-r--r-- | drivers/of/of_numa.c | 9 |
3 files changed, 10 insertions, 42 deletions
diff --git a/drivers/of/device.c b/drivers/of/device.c index 0f27fad9fe94..5592437bb3d1 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -149,9 +149,11 @@ int of_dma_configure(struct device *dev, struct device_node *np, bool force_dma) * set by the driver. */ mask = DMA_BIT_MASK(ilog2(dma_addr + size - 1) + 1); - dev->bus_dma_mask = mask; dev->coherent_dma_mask &= mask; *dev->dma_mask &= mask; + /* ...but only set bus mask if we found valid dma-ranges earlier */ + if (!ret) + dev->bus_dma_mask = mask; coherent = of_dma_is_coherent(np); dev_dbg(dev, "device is%sdma coherent\n", diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c index 53189d4022a6..810ab0fbcccb 100644 --- a/drivers/of/of_net.c +++ b/drivers/of/of_net.c @@ -81,42 +81,3 @@ const void *of_get_mac_address(struct device_node *np) return of_get_mac_addr(np, "address"); } EXPORT_SYMBOL(of_get_mac_address); - -/** - * Obtain the MAC address from an nvmem provider named 'mac-address' through - * device tree. - * On success, copies the new address into memory pointed to by addr and - * returns 0. Returns a negative error code otherwise. - * @np: Device tree node containing the nvmem-cells phandle - * @addr: Pointer to receive the MAC address using ether_addr_copy() - */ -int of_get_nvmem_mac_address(struct device_node *np, void *addr) -{ - struct nvmem_cell *cell; - const void *mac; - size_t len; - int ret; - - cell = of_nvmem_cell_get(np, "mac-address"); - if (IS_ERR(cell)) - return PTR_ERR(cell); - - mac = nvmem_cell_read(cell, &len); - - nvmem_cell_put(cell); - - if (IS_ERR(mac)) - return PTR_ERR(mac); - - if (len < ETH_ALEN || !is_valid_ether_addr(mac)) { - ret = -EINVAL; - } else { - ether_addr_copy(addr, mac); - ret = 0; - } - - kfree(mac); - - return ret; -} -EXPORT_SYMBOL(of_get_nvmem_mac_address); diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c index 35c64a4295e0..fe6b13608e51 100644 --- a/drivers/of/of_numa.c +++ b/drivers/of/of_numa.c @@ -104,9 +104,14 @@ static int __init of_numa_parse_distance_map_v1(struct device_node *map) distance = of_read_number(matrix, 1); matrix++; + if ((nodea == nodeb && distance != LOCAL_DISTANCE) || + (nodea != nodeb && distance <= LOCAL_DISTANCE)) { + pr_err("Invalid distance[node%d -> node%d] = %d\n", + nodea, nodeb, distance); + return -EINVAL; + } + numa_set_distance(nodea, nodeb, distance); - pr_debug("distance[node%d -> node%d] = %d\n", - nodea, nodeb, distance); /* Set default distance of node B->A same as A->B */ if (nodeb > nodea) |