diff options
Diffstat (limited to 'target/linux/generic/pending-5.4/683-of_net-add-mac-address-to-of-tree.patch')
| -rw-r--r-- | target/linux/generic/pending-5.4/683-of_net-add-mac-address-to-of-tree.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.4/683-of_net-add-mac-address-to-of-tree.patch b/target/linux/generic/pending-5.4/683-of_net-add-mac-address-to-of-tree.patch new file mode 100644 index 0000000000..706a864070 --- /dev/null +++ b/target/linux/generic/pending-5.4/683-of_net-add-mac-address-to-of-tree.patch @@ -0,0 +1,44 @@ +--- a/drivers/of/of_net.c ++++ b/drivers/of/of_net.c +@@ -125,6 +125,33 @@ static void *of_get_mac_address_mtd(stru + #endif + } + ++static int of_add_mac_address(struct device_node *np, u8* addr) ++{ ++ struct property *prop; ++ u8 *np_addr; ++ ++ np_addr = of_get_mac_addr(np, "mac-address"); ++ if (np_addr) { ++ memcpy(np_addr, addr, ETH_ALEN); ++ return 0; ++ } ++ ++ prop = kzalloc(sizeof(*prop), GFP_KERNEL); ++ if (!prop) ++ return 0; ++ ++ prop->name = "mac-address"; ++ prop->length = ETH_ALEN; ++ prop->value = kmemdup(addr, ETH_ALEN, GFP_KERNEL); ++ if (!prop->value || of_add_property(np, prop)) ++ goto free; ++ ++ return 0; ++free: ++ kfree(prop->value); ++ kfree(prop); ++ return -ENOMEM; ++} + + /** + * Search the device tree for the best MAC address to use. 'mac-address' is +@@ -198,6 +225,7 @@ found: + if (!of_property_read_u32(np, "mac-address-increment", &mac_inc)) + addr[inc_idx] += mac_inc; + ++ of_add_mac_address(np, addr); + return addr; + } + EXPORT_SYMBOL(of_get_mac_address); |