libfdt: More thorough use of constification

As a read-only functions, which take a const pointer to the fdt, treat
fdt_get_property() and fdt_getprop() as returning const pointers to
within the blob.  fdt_get_property_w() and fdt_getprop_w() versions
are supplied which take a non-const fdt pointer and return a non-const
pointer for the benefit of callers wishing to alter the device tree
contents.

Likewise the lower-level fdt_offset_ptr() and _fdt_offset_ptr()
functions are changed to return const pointers, with *_w() versions
supplied.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2007-06-13 14:18:10 +10:00
parent 857f54e79f
commit a6c76f923d
15 changed files with 70 additions and 43 deletions

View file

@ -32,7 +32,7 @@
int main(int argc, char *argv[])
{
void *fdt = &_truncated_property;
void *prop;
const void *prop;
int err;
int len;