ARC: unwind: Mark expected switch fall-throughs

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings (Building: haps_hs_defconfig arc):

arch/arc/kernel/unwind.c:827:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arc/kernel/unwind.c:836:20: warning: this statement may fall through [-Wimplicit-fallthrough=]

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
index c2663fc..445e4d7 100644 (file)
--- a/arch/arc/kernel/unwind.c
+++ b/arch/arc/kernel/unwind.c
@@ -826,7 +826,7 @@ static int processCFI(const u8 *start, const u8 *end, unsigned long targetLoc,
                        case DW_CFA_def_cfa:
                                state->cfa.reg = get_uleb128(&ptr.p8, end);
                                unw_debug("cfa_def_cfa: r%lu ", state->cfa.reg);
-                               /*nobreak*/
+                               /* fall through */
                        case DW_CFA_def_cfa_offset:
                                state->cfa.offs = get_uleb128(&ptr.p8, end);
                                unw_debug("cfa_def_cfa_offset: 0x%lx ",
@@ -834,7 +834,7 @@ static int processCFI(const u8 *start, const u8 *end, unsigned long targetLoc,
                                break;
                        case DW_CFA_def_cfa_sf:
                                state->cfa.reg = get_uleb128(&ptr.p8, end);
-                               /*nobreak */
+                               /* fall through */
                        case DW_CFA_def_cfa_offset_sf:
                                state->cfa.offs = get_sleb128(&ptr.p8, end)
                                    * state->dataAlign;