firmware-utils: mkfwimage: add -Wall, fix obvious bugs causing compile warnings

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>

SVN-Revision: 48827

tools/firmware-utils/Makefile

@@ -32,7 +32,7 @@ define Host/Compile
 	$(call cc,mkzynfw)
 	$(call cc,lzma2eva,-lz)
 	$(call cc,mkcasfw)
-	$(call cc,mkfwimage,-lz)
+	$(call cc,mkfwimage,-lz -Wall)
 	$(call cc,mkfwimage2,-lz)
 	$(call cc,imagetag imagetag_cmdline cyg_crc32)
 	$(call cc,add_header)

tools/firmware-utils/src/mkfwimage.c

@@ -104,8 +104,6 @@ typedef struct part_data {
 
 #define OPTIONS "B:hv:m:o:r:k:"
 
-static int debug = 0;
-
 typedef struct image_info {
 	char magic[16];
 	char version[256];
@@ -236,9 +234,9 @@ static int create_image_layout(const char* kernelfile, const char* rootfsfile, c
 	fw_layout_t* p;
 
 	p = &fw_layout_data[0];
-	while ((strlen(p->name) != 0) && (strncmp(p->name, board_name, sizeof(board_name)) != 0))
+	while (*p->name && (strcmp(p->name, board_name) != 0))
 		p++;
-	if (p->name == NULL) {
+	if (!*p->name) {
 		printf("BUG! Unable to find default fw layout!\n");
 		exit(-1);
 	}
@@ -247,7 +245,7 @@ static int create_image_layout(const char* kernelfile, const char* rootfsfile, c
 	strcpy(kernel->partition_name, "kernel");
 	kernel->partition_index = 1;
 	kernel->partition_baseaddr = p->kern_start;
-	if ( (kernel->partition_length = filelength(kernelfile)) < 0) return (-1);
+	if ( (kernel->partition_length = filelength(kernelfile)) == (u_int32_t)-1) return (-1);
 	kernel->partition_memaddr = p->kern_entry;
 	kernel->partition_entryaddr = p->kern_entry;
 	strncpy(kernel->filename, kernelfile, sizeof(kernel->filename));