MIPS: Fix fall-through warnings for Clang

Fix the following fallthrough warnings:

arch/mips/alchemy/devboards/db1550.c:69:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           case BCSR_WHOAMI_DB1550:
           ^
   arch/mips/alchemy/devboards/db1550.c:69:2: note: insert 'break;' to avoid fall-through
           case BCSR_WHOAMI_DB1550:
           ^
           break;
arch/mips/kernel/uprobes.c:176:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
           default:
           ^
   arch/mips/kernel/uprobes.c:176:2: note: insert 'break;' to avoid fall-through
           default:
           ^
           break;

This helps with the ongoing efforts to globally enable
-Wimplicit-fallthrough for Clang.

Link: https://github.com/KSPP/linux/issues/115
Link: https://lore.kernel.org/linux-mm/202109030839.t2llsvmc-lkp@intel.com/
Link: https://lore.kernel.org/linux-mm/202108271617.MHxFd8aX-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c
index 9db2a6db5f62..6c063aa188e6 100644
--- a/arch/mips/kernel/uprobes.c
+++ b/arch/mips/kernel/uprobes.c
@@ -173,6 +173,7 @@ int arch_uprobe_exception_notify(struct notifier_block *self,
 	case DIE_UPROBE_XOL:
 		if (uprobe_post_sstep_notifier(regs))
 			return NOTIFY_STOP;
+		break;
 	default:
 		break;
 	}