From: Simon Glass <s...@chromium.org>
This function is useful outside libfdt, so export it.
Signed-off-by: Simon Glass <s...@chromium.org>
Acked-by: David Gibson <da...@gibson.dropbear.id.au>
---
include/libfdt.h | 14 ++++++++++++++
lib/libfdt/fdt_ro.c | 5 ++---
2 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/include/libfdt.h b/include/libfdt.h
index fc7f75b..b153cc3 100644
--- a/include/libfdt.h
+++ b/include/libfdt.h
@@ -816,6 +816,20 @@ int fdt_node_check_compatible(const void *fdt, int
nodeoffset,
int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
const char *compatible);
+/**
+ * fdt_stringlist_contains - check a string list property for a string
+ * @strlist: Property containing a list of strings to check
+ * @listlen: Length of property
+ * @str: String to search for
+ *
+ * This is a utility function provided for convenience. The list contains
+ * one or more strings, each terminated by \0, as is found in a device tree
+ * "compatible" property.
+ *
+ * @return: 1 if the string is found in the list, 0 not found, or invalid list
+ */
+int fdt_stringlist_contains(const char *strlist, int listlen, const char *str);
+
/**********************************************************************/
/* Write-in-place functions */
/**********************************************************************/
diff --git a/lib/libfdt/fdt_ro.c b/lib/libfdt/fdt_ro.c
index 1a461c3..b65f4e2 100644
--- a/lib/libfdt/fdt_ro.c
+++ b/lib/libfdt/fdt_ro.c
@@ -519,8 +519,7 @@ int fdt_node_offset_by_phandle(const void *fdt, uint32_t
phandle)
return offset; /* error from fdt_next_node() */
}
-static int _fdt_stringlist_contains(const char *strlist, int listlen,
- const char *str)
+int fdt_stringlist_contains(const char *strlist, int listlen, const char *str)
{
int len = strlen(str);
const char *p;
@@ -546,7 +545,7 @@ int fdt_node_check_compatible(const void *fdt, int
nodeoffset,
prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
if (!prop)
return len;
- if (_fdt_stringlist_contains(prop, len, compatible))
+ if (fdt_stringlist_contains(prop, len, compatible))
return 0;
else
return 1;
--
1.7.9.5
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