From: Nathan Chancellor <nathan@kernel.org>

[ Upstream commit e8d2d287e26d9bd9114cf258a123a6b70812442e ]

Clang warns (or errors with CONFIG_WERROR=y):

  drivers/i3c/master/svc-i3c-master.c:596:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
    596 |         default:
        |         ^
  drivers/i3c/master/svc-i3c-master.c:596:2: note: insert 'break;' to avoid fall-through
    596 |         default:
        |         ^
        |         break;
  1 error generated.

Clang is a little more pedantic than GCC, which does not warn when
falling through to a case that is just break or return. Clang's version
is more in line with the kernel's own stance in deprecated.rst, which
states that all switch/case blocks must end in either break,
fallthrough, continue, goto, or return. Add the missing break to silence
the warning.

Fixes: 0430bf9bc1ac ("i3c: master: svc: Fix missing STOP for master request")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250319-i3c-fix-clang-fallthrough-v1-1-d8e02be1ef5c@kernel.org (local)
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i3c/master/svc-i3c-master.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index 2cf2c567f8931..75127b6c161f0 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c

@@ -552,6 +552,7 @@ static void svc_i3c_master_ibi_work(struct work_struct *work)
 		break;
 	case SVC_I3C_MSTATUS_IBITYPE_MASTER_REQUEST:
 		svc_i3c_master_emit_stop(master);
+		break;
 	default:
 		break;
 	}

-- 
2.39.5