On Mon, Feb 24, 2025 at 10:27:59PM +0800, Zijun Hu wrote:
> From: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
>
> __of_add_property() compares property name by strcmp(), and that is
> improper for SPARC which wants strcasecmp().
Except that 'name' is the nodename (usually, with a few rare
exceptions). Sparc node names are case sensitive, so strcmp was correct.
My hope is to get rid of case insensitive comparisions, so if nothing
cares that we're doing a case sensitive comparision, I want to keep
that.
I also want to get rid of storing both 'name' as a property and
device_node.name. The name property is an ABI issue though if no one is
looking, then it's not an ABI issue. Also, we should be able to generate
device_node.name from device_node.full_name. There's still a bunch of
direct users of device_node.name which have to be fixed. Mostly in clock
drivers from what I remember.
> Fix by using dedicated property name comparison macro of_prop_cmp().
>
> Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx>
> ---
> drivers/of/base.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index 001ff6ce4abf85c07f13649d5a9f691f549a8ccc..c810014957e81171675b63f25eaabe391cc903e4 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -1651,7 +1651,7 @@ int __of_add_property(struct device_node *np, struct property *prop)
> prop->next = NULL;
> next = &np->properties;
> while (*next) {
> - if (strcmp(prop->name, (*next)->name) == 0) {
> + if (of_prop_cmp(prop->name, (*next)->name) == 0) {
> /* duplicate ! don't insert it */
> rc = -EEXIST;
> goto out_unlock;
>
> --
> 2.34.1
>
