binfmt_flat: warning fixes

Fix this lot:

fs/binfmt_flat.c: In function `decompress_exec':
fs/binfmt_flat.c:293: warning: label `out' defined but not used
fs/binfmt_flat.c: In function `load_flat_file':
fs/binfmt_flat.c:462: warning: unsigned int format, long int arg (arg 3)
fs/binfmt_flat.c:462: warning: unsigned int format, long int arg (arg 4)
fs/binfmt_flat.c:518: warning: comparison of distinct pointer types lacks a cast
fs/binfmt_flat.c:549: warning: passing arg 1 of `ksize' makes pointer from integer without a cast
fs/binfmt_flat.c:601: warning: passing arg 1 of `ksize' makes pointer from integer without a cast
fs/binfmt_flat.c: In function `load_flat_binary':
fs/binfmt_flat.c:116: warning: 'dummy' might be used uninitialized in this function
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/binfmt_flat.c

@@ -113,7 +113,7 @@ static unsigned long create_flat_tables(
 	char * p = (char*)pp;
 	int argc = bprm->argc;
 	int envc = bprm->envc;
-	char dummy;
+	char uninitialized_var(dummy);
 
 	sp = (unsigned long *) ((-(unsigned long)sizeof(char *))&(unsigned long) p);
 
@@ -290,7 +290,6 @@ static int decompress_exec(
 	kfree(buf);
 out_free:
 	kfree(strm.workspace);
-out:
 	return retval;
 }
 
@@ -459,7 +458,9 @@ static int load_flat_file(struct linux_binprm * bprm,
 		printk("BINFMT_FLAT: Loading file: %s\n", bprm->filename);
 
 	if (rev != FLAT_VERSION && rev != OLD_FLAT_VERSION) {
-		printk("BINFMT_FLAT: bad flat file version 0x%x (supported 0x%x and 0x%x)\n", rev, FLAT_VERSION, OLD_FLAT_VERSION);
+		printk("BINFMT_FLAT: bad flat file version 0x%x (supported "
+			"0x%lx and 0x%lx)\n",
+			rev, FLAT_VERSION, OLD_FLAT_VERSION);
 		ret = -ENOEXEC;
 		goto err;
 	}
@@ -515,7 +516,8 @@ static int load_flat_file(struct linux_binprm * bprm,
 	/*
 	 * calculate the extra space we need to map in
 	 */
-	extra = max(bss_len + stack_len, relocs * sizeof(unsigned long));
+	extra = max_t(unsigned long, bss_len + stack_len,
+			relocs * sizeof(unsigned long));
 
 	/*
 	 * there are a couple of cases here,  the separate code/data
@@ -546,7 +548,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 			PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0);
 		/* Remap to use all availabe slack region space */
 		if (realdatastart && (realdatastart < (unsigned long)-4096)) {
-			reallen = ksize(realdatastart);
+			reallen = ksize((void *)realdatastart);
 			if (reallen > len) {
 				realdatastart = do_mremap(realdatastart, len,
 					reallen, MREMAP_FIXED, realdatastart);
@@ -598,7 +600,7 @@ static int load_flat_file(struct linux_binprm * bprm,
 			PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0);
 		/* Remap to use all availabe slack region space */
 		if (textpos && (textpos < (unsigned long) -4096)) {
-			reallen = ksize(textpos);
+			reallen = ksize((void *)textpos);
 			if (reallen > len) {
 				textpos = do_mremap(textpos, len, reallen,
 					MREMAP_FIXED, textpos);