MIPS: elf2ecoff: Rewrite main processing loop to switch.

The if construct was getting hard to read and would be getting even more
complex with the next bug fix.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/boot/elf2ecoff.c

@@ -349,17 +349,14 @@ int main(int argc, char *argv[])
 
 	for (i = 0; i < ex.e_phnum; i++) {
 		/* Section types we can ignore... */
-		if (ph[i].p_type == PT_NULL || ph[i].p_type == PT_NOTE ||
-		    ph[i].p_type == PT_PHDR
-		    || ph[i].p_type == PT_MIPS_REGINFO)
+		switch (ph[i].p_type) {
+		case PT_NULL:
+		case PT_NOTE:
+		case PT_PHDR:
+		case PT_MIPS_REGINFO:
 			continue;
-		/* Section types we can't handle... */
-		else if (ph[i].p_type != PT_LOAD) {
-			fprintf(stderr,
-				"Program header %d type %d can't be converted.\n",
-				ex.e_phnum, ph[i].p_type);
-			exit(1);
-		}
+
+		case PT_LOAD:
 			/* Writable (data) segment? */
 			if (ph[i].p_flags & PF_W) {
 				struct sect ndata, nbss;
@@ -382,6 +379,15 @@ int main(int argc, char *argv[])
 			/* Remember the lowest segment start address. */
 			if (ph[i].p_vaddr < cur_vma)
 				cur_vma = ph[i].p_vaddr;
+			break;
+
+		default:
+			/* Section types we can't handle... */
+			fprintf(stderr,
+				"Program header %d type %d can't be converted.\n",
+				ex.e_phnum, ph[i].p_type);
+			exit(1);
+		}
 	}
 
 	/* Sections must be in order to be converted... */