Remove an unused function, mark a bunch of other functions and variables

as static.  Mostly found by sparse.

data.c

@@ -101,21 +101,7 @@ struct data data_copy_mem(char *mem, int len)
 	return d;
 }
 
-char hexval(char c)
-{
-	switch (c) {
-	case '0' ... '9':
-		return c - '0';
-	case 'a' ... 'f':
-		return c - 'a';
-	case 'A' ... 'F':
-		return c - 'A';
-	default:
-		assert(0);
-	}
-}
-
-char get_oct_char(char *s, int *i)
+static char get_oct_char(char *s, int *i)
 {
 	char x[4];
 	char *endx;
@@ -137,7 +123,7 @@ char get_oct_char(char *s, int *i)
 	return val;
 }
 
-char get_hex_char(char *s, int *i)
+static char get_hex_char(char *s, int *i)
 {
 	char x[3];
 	char *endx;

flattree.c

@@ -27,7 +27,7 @@
 #define FTF_BOOTCPUID	0x8
 #define FTF_STRTABSIZE	0x10
 
-struct version_info {
+static struct version_info {
 	int version;
 	int last_comp_version;
 	int hdr_size;
@@ -100,7 +100,7 @@ static void bin_emit_property(void *e, char *label)
 	bin_emit_cell(e, OF_DT_PROP);
 }
 
-struct emitter bin_emitter = {
+static struct emitter bin_emitter = {
 	.cell = bin_emit_cell,
 	.string = bin_emit_string,
 	.align = bin_emit_align,
@@ -110,7 +110,7 @@ struct emitter bin_emitter = {
 	.property = bin_emit_property,	
 };
 
-void emit_label(FILE *f, char *prefix, char *label)
+static void emit_label(FILE *f, char *prefix, char *label)
 {
 	fprintf(f, "\t.globl\t%s_%s\n", prefix, label);
 	fprintf(f, "%s_%s:\n", prefix, label);
@@ -207,7 +207,7 @@ static void asm_emit_property(void *e, char *label)
 	fprintf(f, "\t.long\tOF_DT_PROP\n");
 }
 
-struct emitter asm_emitter = {
+static struct emitter asm_emitter = {
 	.cell = asm_emit_cell,
 	.string = asm_emit_string,
 	.align = asm_emit_align,
@@ -369,7 +369,7 @@ void write_dt_blob(FILE *f, struct boot_info *bi, int version)
 	data_free(strbuf);
 }
 
-void dump_stringtable_asm(FILE *f, struct data strbuf)
+static void dump_stringtable_asm(FILE *f, struct data strbuf)
 {
 	char *p;
 	int len;
@@ -561,8 +561,8 @@ static char *flat_read_stringtable(struct inbuf *inb, int offset)
 	return strdup(inb->base + offset);
 }
 
-struct property *flat_read_property(struct inbuf *dtbuf, struct inbuf *strbuf,
-				    int flags)
+static struct property *flat_read_property(struct inbuf *dtbuf,
+					   struct inbuf *strbuf, int flags)
 {
 	u32 proplen, stroff;
 	char *name;

livetree.c

@@ -97,7 +97,7 @@ void add_child(struct node *parent, struct node *child)
  * Tree accessor functions
  */
 
-char *get_unitname(struct node *node)
+static char *get_unitname(struct node *node)
 {
 	if (node->name[node->basenamelen] == '\0')
 		return "";
@@ -105,7 +105,7 @@ char *get_unitname(struct node *node)
 		return node->name + node->basenamelen + 1;
 }
 
-struct property *get_property(struct node *node, char *propname)
+static struct property *get_property(struct node *node, char *propname)
 {
 	struct property *prop;
 
@@ -226,7 +226,7 @@ static int name_prop_check(struct property *prop, struct node *node)
 	return 1;
 }
 
-struct {
+static struct {
 	char *propname;
 	int (*check_fn)(struct property *prop, struct node *node);
 } prop_checker_table[] = {

treesource.c

@@ -91,7 +91,7 @@ static enum proptype guess_type(struct property *prop)
 }
 
 
-void write_tree_source_node(FILE *f, struct node *tree, int level)
+static void write_tree_source_node(FILE *f, struct node *tree, int level)
 {
 	struct property *prop;
 	struct node *child;