s390/mm: add fallthrough annotations

Commit a035d552a93b ("Makefile: Globally enable fall-through warning")
enables fall-through warnings globally. Add missing annotations.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 6350766..7b0bb47 100644 (file)
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -327,6 +327,7 @@ static noinline void do_fault_error(struct pt_regs *regs, int access,
        case VM_FAULT_BADACCESS:
                if (access == VM_EXEC && signal_return(regs) == 0)
                        break;
+               /* fallthrough */
        case VM_FAULT_BADMAP:
                /* Bad memory access. Check if it is kernel or user space. */
                if (user_mode(regs)) {
@@ -336,7 +337,9 @@ static noinline void do_fault_error(struct pt_regs *regs, int access,
                        do_sigsegv(regs, si_code);
                        break;
                }
+               /* fallthrough */
        case VM_FAULT_BADCONTEXT:
+               /* fallthrough */
        case VM_FAULT_PFAULT:
                do_no_context(regs);
                break;