libfdt: Increase namespace-pollution paranoia

libfdt is supposed to easy to embed in projects all and sundry.
Often, it won't be practical to separate the embedded libfdt's
namespace from that of the surrounding project.  Which means there can
be namespace conflicts between even libfdt's internal/static functions
and functions or macros coming from the surrounding project's headers
via libfdt_env.h.

This patch, therefore, renames a bunch of libfdt internal functions
and macros and makes a few other chances to reduce the chances of
namespace collisions with embedding projects.  Specifically:
	- Internal functions (even static ones) are now named _fdt_*()

	- The type and (static) global for the error table in
          fdt_strerror() gain an fdt_ prefix

	- The unused macro PALIGN is removed

	- The memeq and streq macros are removed and open-coded in the
          users (they were only used once each)

	- Other macros gain an FDT_ prefix

	- To save some of the bulk from the previous change, an
          FDT_TAGALIGN() macro is introduced, where FDT_TAGALIGN(x) ==
          FDT_ALIGN(x, FDT_TAGSIZE)

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 17 insertions, 17 deletions

diff --git a/libfdt/fdt_strerror.c b/libfdt/fdt_strerror.c
index abf792e..9b00c3a 100644
--- a/libfdt/fdt_strerror.c
+++ b/libfdt/fdt_strerror.c
@@ -59,29 +59,29 @@
 
 #include "libfdt_internal.h"
 
-struct errtabent {
+struct fdt_errtabent {
 	const char *str;
 };
 
-#define ERRTABENT(val) \
+#define FDT_ERRTABENT(val) \
 	[(val)] = { .str = #val, }
 
-static struct errtabent errtable[] = {
-	ERRTABENT(FDT_ERR_NOTFOUND),
-	ERRTABENT(FDT_ERR_EXISTS),
-	ERRTABENT(FDT_ERR_NOSPACE),
+static struct fdt_errtabent fdt_errtable[] = {
+	FDT_ERRTABENT(FDT_ERR_NOTFOUND),
+	FDT_ERRTABENT(FDT_ERR_EXISTS),
+	FDT_ERRTABENT(FDT_ERR_NOSPACE),
 
-	ERRTABENT(FDT_ERR_BADOFFSET),
-	ERRTABENT(FDT_ERR_BADPATH),
-	ERRTABENT(FDT_ERR_BADSTATE),
+	FDT_ERRTABENT(FDT_ERR_BADOFFSET),
+	FDT_ERRTABENT(FDT_ERR_BADPATH),
+	FDT_ERRTABENT(FDT_ERR_BADSTATE),
 
-	ERRTABENT(FDT_ERR_TRUNCATED),
-	ERRTABENT(FDT_ERR_BADMAGIC),
-	ERRTABENT(FDT_ERR_BADVERSION),
-	ERRTABENT(FDT_ERR_BADSTRUCTURE),
-	ERRTABENT(FDT_ERR_BADLAYOUT),
+	FDT_ERRTABENT(FDT_ERR_TRUNCATED),
+	FDT_ERRTABENT(FDT_ERR_BADMAGIC),
+	FDT_ERRTABENT(FDT_ERR_BADVERSION),
+	FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
+	FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
 };
-#define ERRTABSIZE	(sizeof(errtable) / sizeof(errtable[0]))
+#define FDT_ERRTABSIZE	(sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
 
 const char *fdt_strerror(int errval)
 {
@@ -89,8 +89,8 @@ const char *fdt_strerror(int errval)
 		return "<valid offset/length>";
 	else if (errval == 0)
 		return "<no error>";
-	else if (errval > -ERRTABSIZE) {
-		const char *s = errtable[-errval].str;
+	else if (errval > -FDT_ERRTABSIZE) {
+		const char *s = fdt_errtable[-errval].str;
 
 		if (s)
 			return s;