On Mon, Aug 05, 2019 at 02:32:32PM -0500, Gustavo A. R. Silva wrote:
> 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=]
>
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
-Kees
> ---
> arch/arc/kernel/unwind.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c
> index c2663fce7f6c..445e4d702f43 100644
> --- 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;
> --
> 2.22.0
>
--
Kees Cook
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