core/exceptions.c: rearrange code to allow more interrupt types

Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
open-power · Oct 2, 2019 · b70e8af · b70e8af
1 parent 6266148
commit b70e8af
Showing 1 changed file with 12 additions and 4 deletions.
diff --git a/core/exceptions.c b/core/exceptions.c
@@ -69,24 +69,32 @@ void exception_entry(struct stack_frame *stack)
 	if (!(msr & MSR_RI))
 		fatal = true;
 
-	prerror("***********************************************\n");
 	l = 0;
-	if (stack->type == 0x100) {
+	switch (stack->type) {
+	case 0x100:
+		prerror("***********************************************\n");
 		if (fatal) {
 			l += snprintf(buf + l, EXCEPTION_MAX_STR - l,
 				"Fatal System Reset at "REG"   ", nip);
 		} else {
 			l += snprintf(buf + l, EXCEPTION_MAX_STR - l,
 				"System Reset at "REG"   ", nip);
 		}
-	} else if (stack->type == 0x200) {
+		break;
+
+	case 0x200:
 		fatal = true;
+		prerror("***********************************************\n");
 		l += snprintf(buf + l, EXCEPTION_MAX_STR - l,
 			"Fatal MCE at "REG"   ", nip);
-	} else {
+		break;
+
+	default:
 		fatal = true;
+		prerror("***********************************************\n");
 		l += snprintf(buf + l, EXCEPTION_MAX_STR - l,
 			"Fatal Exception 0x%llx at "REG"  ", stack->type, nip);
+		break;
 	}
 	l += snprintf_symbol(buf + l, EXCEPTION_MAX_STR - l, nip);
 	l += snprintf(buf + l, EXCEPTION_MAX_STR - l, "  MSR "REG, msr);