BUILD: vars: use __fallthrough in var_accounting_{diff,add}()

This avoids 6 build warnings when preprocessing happens before compiling
with gcc >= 7.

diff --git a/src/vars.c b/src/vars.c
index e620acf3aea7286874c932b790d911fd82483108..0b6bc1212781c5082da1cd699be2c28d3700937f 100644 (file)
--- a/src/vars.c
+++ b/src/vars.c
@@ -90,7 +90,7 @@ void var_accounting_diff(struct vars *vars, struct session *sess, struct stream
        case SCOPE_RES:
                if (var_reqres_limit && strm)
                        _HA_ATOMIC_ADD(&strm->vars_reqres.size, size);
-               /* fall through */
+               __fallthrough;
        case SCOPE_TXN:
                if (var_txn_limit && strm)
                        _HA_ATOMIC_ADD(&strm->vars_txn.size, size);
@@ -102,12 +102,12 @@ void var_accounting_diff(struct vars *vars, struct session *sess, struct stream
                        if (check)
                                _HA_ATOMIC_ADD(&check->vars.size, size);
                }
-               /* fall through */
 scope_sess:
+               __fallthrough;
        case SCOPE_SESS:
                if (var_sess_limit)
                        _HA_ATOMIC_ADD(&sess->vars.size, size);
-               /* fall through */
+               __fallthrough;
        case SCOPE_PROC:
                if (var_proc_limit || var_global_limit)
                        _HA_ATOMIC_ADD(&proc_vars.size, size);
@@ -128,7 +128,7 @@ static int var_accounting_add(struct vars *vars, struct session *sess, struct st
        case SCOPE_RES:
                if (var_reqres_limit && strm && strm->vars_reqres.size + size > var_reqres_limit)
                        return 0;
-               /* fall through */
+               __fallthrough;
        case SCOPE_TXN:
                if (var_txn_limit && strm && strm->vars_txn.size + size > var_txn_limit)
                        return 0;
@@ -139,12 +139,12 @@ static int var_accounting_add(struct vars *vars, struct session *sess, struct st
                        if (var_check_limit && check && check->vars.size + size > var_check_limit)
                                return 0;
                }
-               /* fall through */
 scope_sess:
+               __fallthrough;
        case SCOPE_SESS:
                if (var_sess_limit && sess->vars.size + size > var_sess_limit)
                        return 0;
-               /* fall through */
+               __fallthrough;
        case SCOPE_PROC:
                /* note: scope proc collects all others and is currently identical to the
                 * global limit.