From f46ec93ed593e7a442629a2a56fd541debc41329 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 6 Sep 2022 20:27:15 -0600 Subject: [PATCH] dm: core: Avoid creating a name property when unflattening The current implementation creates a 'name' value for every node. This is not needed for the latest device tree format, which includes a name in the node header. Adjust the code to point the name at the node header instead. Also simplify ofnode_get_name(), now that we can rely on it to set the name correctly. Update the comment to make it clear what name the root node has. Signed-off-by: Simon Glass --- drivers/core/ofnode.c | 2 +- include/dm/ofnode.h | 2 +- lib/of_live.c | 7 ++++++- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index f9c9ca1..154c7b2 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -356,7 +356,7 @@ const char *ofnode_get_name(ofnode node) } if (ofnode_is_np(node)) - return strrchr(node.np->full_name, '/') + 1; + return node.np->name; return fdt_get_name(gd->fdt_blob, ofnode_to_offset(node), NULL); } diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 9dcc1fe..1e23a40 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -466,7 +466,7 @@ ofnode ofnode_get_parent(ofnode node); * ofnode_get_name() - get the name of a node * * @node: valid node to look up - * Return: name of node + * Return: name of node (for the root node this is "") */ const char *ofnode_get_name(ofnode node); diff --git a/lib/of_live.c b/lib/of_live.c index 30cae9a..1b5964d 100644 --- a/lib/of_live.c +++ b/lib/of_live.c @@ -97,6 +97,10 @@ static void *unflatten_dt_node(const void *blob, void *mem, int *poffset, char *fn; fn = (char *)np + sizeof(*np); + if (new_format) { + np->name = pathp; + has_name = 1; + } np->full_name = fn; if (new_format) { /* rebuild full path for new format */ @@ -202,7 +206,8 @@ static void *unflatten_dt_node(const void *blob, void *mem, int *poffset, } if (!dryrun) { *prev_pp = NULL; - np->name = of_get_property(np, "name", NULL); + if (!has_name) + np->name = of_get_property(np, "name", NULL); np->type = of_get_property(np, "device_type", NULL); if (!np->name) -- 2.7.4