driver: net: fsl-mc: Fix DPC MAC address fixup

If node /board_info/ports does not exist in the DPC file,
function mc_fixup_dpc() will skip not only MAC address fixup,
but also the cache flush at the end. This may cause the other
fixup changes (e.g. ICID related ones) to be ignored by MC.

Fixes: 1161dbcc0a36 ("drivers: net: fsl-mc: Include MAC addr fixup to DPL")

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>

diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c
index a51b8a4..e6cf7f3 100644 (file)
--- a/drivers/net/fsl-mc/mc.c
+++ b/drivers/net/fsl-mc/mc.c
@@ -421,9 +421,11 @@ static int mc_fixup_dpc(u64 dpc_addr)
        /* fixup MAC addresses for dpmac ports */
        nodeoffset = fdt_path_offset(blob, "/board_info/ports");
        if (nodeoffset < 0)
-               return 0;
+               goto out;
 
        err = mc_fixup_mac_addrs(blob, MC_FIXUP_DPC);
+
+out:
        flush_dcache_range(dpc_addr, dpc_addr + fdt_totalsize(blob));
 
        return err;