Attachment 165990 Details for Bug 206516 – Teach ofw_bus_parse_xref_list_alloc to be able to return the length of the parsed list

[patch] Teach ofw_bus_parse_xref_list_alloc to be able to return the length of the parsed list

ofw_bus_parse_xref_list_alloc.patch (text/plain), 1.13 KB, created by Stanislav Galabov on 2016-01-23 06:28:24 UTC

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Creator: Stanislav Galabov

Created: 2016-01-23 06:28:24 UTC

Size: 1.13 KB

patch

obsolete

>diff --git a/sys/dev/ofw/ofw_bus_subr.c b/sys/dev/ofw/ofw_bus_subr.c
>index 60a341c..15cafa6 100644
>--- a/sys/dev/ofw/ofw_bus_subr.c
>+++ b/sys/dev/ofw/ofw_bus_subr.c
>@@ -629,6 +629,8 @@ ofw_bus_find_child_device_by_phandle(device_t bus, phandle_t node)
>  *  node - consumers device node
>  *  list_name  - name of parsed list - "clocks"
>  *  cells_name - name of size property - "#clock-cells"
>+ *  idx - the index of the requested list entry, or, if -1, an indication
>+ *        to return the number of entries in the parsed list.
>  * Output arguments:
>  *  producer - handle of producer
>  *  ncells   - number of cells in result
>@@ -649,7 +651,7 @@ ofw_bus_parse_xref_list_alloc(phandle_t node, const char *list_name,
> 	    (void **)&elems);
> 	if (nelems <= 0)
> 		return (ENOENT);
>-	rv = ENOENT;
>+	rv = (idx == -1) ? 0 : ENOENT;
> 	for (i = 0, cnt = 0; i < nelems; i += pcells, cnt++) {
> 		pnode = elems[i++];
> 		if (OF_getencprop(OF_node_from_xref(pnode),
>@@ -678,6 +680,8 @@ ofw_bus_parse_xref_list_alloc(phandle_t node, const char *list_name,
> 	}
> 	if (elems != NULL)
> 		free(elems, M_OFWPROP);
>+	if (idx == -1 && rv == 0)
>+		return (cnt);
> 	return (rv);
> }
>

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Attachments on bug 206516: 165990