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Export fdt_stringlist_contains()

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This function is useful outside libfdt, so export it.

Ref: DTC commit b7aa300e

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Simon Glass 2013-01-21 12:59:18 -08:00 • committed by Gerald Van Baren
parent 2988eac70e
commit e853b32424
2 changed files with 16 additions and 3 deletions
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14
include/libfdt.h
View file

@ -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 */
/**********************************************************************/

5
lib/libfdt/fdt_ro.c
View file

@ -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;