_Static_assert(ARRAY_SIZE(map) != IEEE8021Q_TT_MAX - 1) rejects only a length of 7 and allows any other mismatch. Replace it with a strict equality test via a helper macro so that every mapping table must have exactly IEEE8021Q_TT_MAX (8) entries. Signed-off-by: RubenKelevra --- net/core/ieee8021q_helpers.c | 44 +++++++++++------------------------- 1 file changed, 13 insertions(+), 31 deletions(-) diff --git a/net/core/ieee8021q_helpers.c b/net/core/ieee8021q_helpers.c index 759a9b9f3f898..669b357b73b2d 100644 --- a/net/core/ieee8021q_helpers.c +++ b/net/core/ieee8021q_helpers.c @@ -7,6 +7,11 @@ #include #include +/* verify that table covers all 8 traffic types */ +#define TT_MAP_SIZE_OK(tbl) \ + compiletime_assert(ARRAY_SIZE(tbl) == IEEE8021Q_TT_MAX, \ + #tbl " size mismatch") + /* The following arrays map Traffic Types (TT) to traffic classes (TC) for * different number of queues as shown in the example provided by * IEEE 802.1Q-2022 in Annex I "I.3 Traffic type to traffic class mapping" and @@ -101,51 +106,28 @@ int ieee8021q_tt_to_tc(enum ieee8021q_traffic_type tt, unsigned int num_queues) switch (num_queues) { case 8: - compiletime_assert(ARRAY_SIZE(ieee8021q_8queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_8queue_tt_tc_map != max - 1"); + TT_MAP_SIZE_OK(ieee8021q_8queue_tt_tc_map); return ieee8021q_8queue_tt_tc_map[tt]; case 7: - compiletime_assert(ARRAY_SIZE(ieee8021q_7queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_7queue_tt_tc_map != max - 1"); - + TT_MAP_SIZE_OK(ieee8021q_7queue_tt_tc_map); return ieee8021q_7queue_tt_tc_map[tt]; case 6: - compiletime_assert(ARRAY_SIZE(ieee8021q_6queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_6queue_tt_tc_map != max - 1"); - + TT_MAP_SIZE_OK(ieee8021q_6queue_tt_tc_map); return ieee8021q_6queue_tt_tc_map[tt]; case 5: - compiletime_assert(ARRAY_SIZE(ieee8021q_5queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_5queue_tt_tc_map != max - 1"); - + TT_MAP_SIZE_OK(ieee8021q_5queue_tt_tc_map); return ieee8021q_5queue_tt_tc_map[tt]; case 4: - compiletime_assert(ARRAY_SIZE(ieee8021q_4queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_4queue_tt_tc_map != max - 1"); - + TT_MAP_SIZE_OK(ieee8021q_4queue_tt_tc_map); return ieee8021q_4queue_tt_tc_map[tt]; case 3: - compiletime_assert(ARRAY_SIZE(ieee8021q_3queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_3queue_tt_tc_map != max - 1"); - + TT_MAP_SIZE_OK(ieee8021q_3queue_tt_tc_map); return ieee8021q_3queue_tt_tc_map[tt]; case 2: - compiletime_assert(ARRAY_SIZE(ieee8021q_2queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_2queue_tt_tc_map != max - 1"); - + TT_MAP_SIZE_OK(ieee8021q_2queue_tt_tc_map); return ieee8021q_2queue_tt_tc_map[tt]; case 1: - compiletime_assert(ARRAY_SIZE(ieee8021q_1queue_tt_tc_map) != - IEEE8021Q_TT_MAX - 1, - "ieee8021q_1queue_tt_tc_map != max - 1"); - + TT_MAP_SIZE_OK(ieee8021q_1queue_tt_tc_map); return ieee8021q_1queue_tt_tc_map[tt]; } -- 2.50.0