s390: Fix fall-through warnings for Clang

Fix the following fallthrough warnings:

drivers/s390/net/ctcm_fsms.c:1457:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
drivers/s390/net/qeth_l3_main.c:437:3: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
drivers/s390/char/tape_char.c:374:4: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
arch/s390/kernel/uprobes.c:129:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]

Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c
index bbf8622..bd3ef12 100644 (file)
--- a/arch/s390/kernel/uprobes.c
+++ b/arch/s390/kernel/uprobes.c
@@ -126,6 +126,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
        case DIE_SSTEP:
                if (uprobe_post_sstep_notifier(regs))
                        return NOTIFY_STOP;
+               break;
        default:
                break;
        }

diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 8abb429..cc8237a 100644 (file)
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -371,8 +371,6 @@ __tapechar_ioctl(struct tape_device *device,
                        case MTSEEK:
                                if (device->required_tapemarks)
                                        tape_std_terminate_write(device);
-                       default:
-                               ;
                }
                rc = tape_mtop(device, op.mt_op, op.mt_count);
 

diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c
index b341075..377e368 100644 (file)
--- a/drivers/s390/net/ctcm_fsms.c
+++ b/drivers/s390/net/ctcm_fsms.c
@@ -1454,6 +1454,7 @@ again:
                                get_ccwdev_lock(ch->cdev), saveflags);
                if (rc != 0)
                        ctcm_ccw_check_rc(ch, rc, "normal RX");
+               break;
        default:
                break;
        }

diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index d308ff7..f0d6f20 100644 (file)
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -434,6 +434,7 @@ static int qeth_l3_correct_routing_type(struct qeth_card *card,
                        if (qeth_is_ipafunc_supported(card, prot,
                                                      IPA_OSA_MC_ROUTER))
                                return 0;
+                       goto out_inval;
                default:
                        goto out_inval;
                }