[PATCH] i3c: master: svc: Fix implicit fallthrough in svc_i3c_master_ibi_work()

[Nathan Chancellor]

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 at 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 e0cd3ce28b7f..85e16de208d3 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -593,6 +593,7 @@ 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;
 	}

---
base-commit: 0430bf9bc1ac068c8b8c540eb93e5751872efc51
change-id: 20250319-i3c-fix-clang-fallthrough-9f5c7cf5e799

Best regards,
-- 
Nathan Chancellor <nathan at kernel.org>