Instead of tracking address set per struct expr_constant_set track it
per individual struct expr_constant. This allows more fine grained
control for I-P processing of address sets in controller. It helps with
scenarios like matching on two address sets in one expression e.g.
"ip4.src == {$as1, $as2}". This allows any addition or removal of
individual adress from the set to be incrementally processed instead
of reprocessing all the flows.

This unfortunately doesn't help with the following flows:
"ip4.src == $as1 && ip4.dst == $as2"
"ip4.src == $as1 || ip4.dst == $as2"

The memory impact should be minimal as there is only increase of 8 bytes
per the struct expr_constant.

Signed-off-by: Ales Musil <amu...@redhat.com>
---
 controller/lflow.c      |  4 +-
 include/ovn/actions.h   |  2 +-
 include/ovn/expr.h      | 46 ++++++++++----------
 lib/actions.c           | 20 ++++-----
 lib/expr.c              | 95 +++++++++++++++++------------------------
 tests/ovn-controller.at | 14 +++---
 6 files changed, 83 insertions(+), 98 deletions(-)

diff --git a/controller/lflow.c b/controller/lflow.c
index 895d17d19..730dc879d 100644
--- a/controller/lflow.c
+++ b/controller/lflow.c
@@ -278,7 +278,7 @@ lflow_handle_changed_flows(struct lflow_ctx_in *l_ctx_in,
 }
 
 static bool
-as_info_from_expr_const(const char *as_name, const union expr_constant *c,
+as_info_from_expr_const(const char *as_name, const struct expr_constant *c,
                         struct addrset_info *as_info)
 {
     as_info->name = as_name;
@@ -714,7 +714,7 @@ lflow_handle_addr_set_update(const char *as_name,
         if (as_diff->deleted) {
             struct addrset_info as_info;
             for (size_t i = 0; i < as_diff->deleted->n_values; i++) {
-                union expr_constant *c = &as_diff->deleted->values[i];
+                struct expr_constant *c = &as_diff->deleted->values[i];
                 if (!as_info_from_expr_const(as_name, c, &as_info)) {
                     continue;
                 }
diff --git a/include/ovn/actions.h b/include/ovn/actions.h
index dcacbb1ff..1e20f9b81 100644
--- a/include/ovn/actions.h
+++ b/include/ovn/actions.h
@@ -238,7 +238,7 @@ struct ovnact_next {
 struct ovnact_load {
     struct ovnact ovnact;
     struct expr_field dst;
-    union expr_constant imm;
+    struct expr_constant imm;
 };
 
 /* OVNACT_MOVE, OVNACT_EXCHANGE. */
diff --git a/include/ovn/expr.h b/include/ovn/expr.h
index c48f82398..e54edb5bf 100644
--- a/include/ovn/expr.h
+++ b/include/ovn/expr.h
@@ -368,7 +368,7 @@ bool expr_relop_from_token(enum lex_type type, enum 
expr_relop *relop);
 struct expr {
     struct ovs_list node;       /* In parent EXPR_T_AND or EXPR_T_OR if any. */
     enum expr_type type;        /* Expression type. */
-    char *as_name;              /* Address set name. Null if it is not an
+    const char *as_name;        /* Address set name. Null if it is not an
                                    address set. */
 
     union {
@@ -505,40 +505,42 @@ enum expr_constant_type {
 };
 
 /* A string or integer constant (one must know which from context). */
-union expr_constant {
-    /* Integer constant.
-     *
-     * The width of a constant isn't always clear, e.g. if you write "1",
-     * there's no way to tell whether you mean for that to be a 1-bit constant
-     * or a 128-bit constant or somewhere in between. */
-    struct {
-        union mf_subvalue value;
-        union mf_subvalue mask; /* Only initialized if 'masked'. */
-        bool masked;
-
-        enum lex_format format; /* From the constant's lex_token. */
-    };
+struct expr_constant {
+    const char *as_name;
 
-    /* Null-terminated string constant. */
-    char *string;
+    union {
+        /* Integer constant.
+         *
+         * The width of a constant isn't always clear, e.g. if you write "1",
+         * there's no way to tell whether you mean for that to be a 1-bit
+         * constant or a 128-bit constant or somewhere in between. */
+        struct {
+            union mf_subvalue value;
+            union mf_subvalue mask; /* Only initialized if 'masked'. */
+            bool masked;
+
+            enum lex_format format; /* From the constant's lex_token. */
+        };
+
+        /* Null-terminated string constant. */
+        char *string;
+    };
 };
 
 bool expr_constant_parse(struct lexer *,
                          const struct expr_field *,
-                         union expr_constant *);
-void expr_constant_format(const union expr_constant *,
+                         struct expr_constant *);
+void expr_constant_format(const struct expr_constant *,
                           enum expr_constant_type, struct ds *);
-void expr_constant_destroy(const union expr_constant *,
+void expr_constant_destroy(const struct expr_constant *,
                            enum expr_constant_type);
 
 /* A collection of "union expr_constant"s of the same type. */
 struct expr_constant_set {
-    union expr_constant *values;  /* Constants. */
+    struct expr_constant *values; /* Constants. */
     size_t n_values;              /* Number of constants. */
     enum expr_constant_type type; /* Type of the constants. */
     bool in_curlies;              /* Whether the constants were in {}. */
-    char *as_name;                /* Name of an address set. It is NULL if not
-                                     an address set. */
 };
 
 bool expr_constant_set_parse(struct lexer *, struct expr_constant_set *);
diff --git a/lib/actions.c b/lib/actions.c
index 71615fc53..6574c4df4 100644
--- a/lib/actions.c
+++ b/lib/actions.c
@@ -450,7 +450,7 @@ encode_LOAD(const struct ovnact_load *load,
             const struct ovnact_encode_params *ep,
             struct ofpbuf *ofpacts)
 {
-    const union expr_constant *c = &load->imm;
+    const struct expr_constant *c = &load->imm;
     struct mf_subfield dst = expr_resolve_field(&load->dst);
     struct ofpact_set_field *sf = ofpact_put_set_field(ofpacts, dst.field,
                                                        NULL, NULL);
@@ -2122,7 +2122,7 @@ encode_event_empty_lb_backends_opts(struct ofpbuf 
*ofpacts,
         /* All empty_lb_backends fields are of type 'str' */
         ovs_assert(!strcmp(o->option->type, "str"));
 
-        const union expr_constant *c = o->value.values;
+        const struct expr_constant *c = o->value.values;
         size_t size = strlen(c->string);
         struct controller_event_opt_header hdr =
             (struct controller_event_opt_header) {
@@ -2598,7 +2598,7 @@ validate_empty_lb_backends(struct action_context *ctx,
 {
     for (size_t i = 0; i < n_options; i++) {
         const struct ovnact_gen_option *o = &options[i];
-        const union expr_constant *c = o->value.values;
+        const struct expr_constant *c = o->value.values;
         struct sockaddr_storage ss;
         struct uuid uuid;
 
@@ -2801,7 +2801,7 @@ encode_put_dhcpv4_option(const struct ovnact_gen_option 
*o,
     uint8_t *opt_header = ofpbuf_put_zeros(ofpacts, 2);
     opt_header[0] = o->option->code;
 
-    const union expr_constant *c = o->value.values;
+    const struct expr_constant *c = o->value.values;
     size_t n_values = o->value.n_values;
     if (!strcmp(o->option->type, "bool") ||
         !strcmp(o->option->type, "uint8")) {
@@ -2967,7 +2967,7 @@ encode_put_dhcpv6_option(const struct ovnact_gen_option 
*o,
                          struct ofpbuf *ofpacts)
 {
     struct dhcpv6_opt_header *opt = ofpbuf_put_uninit(ofpacts, sizeof *opt);
-    const union expr_constant *c = o->value.values;
+    const struct expr_constant *c = o->value.values;
     size_t n_values = o->value.n_values;
     size_t size;
 
@@ -3023,7 +3023,7 @@ encode_PUT_DHCPV4_OPTS(const struct ovnact_put_opts *pdo,
         find_opt(pdo->options, pdo->n_options, DHCP_OPT_BOOTFILE_CODE);
     if (boot_opt) {
         uint8_t *opt_header = ofpbuf_put_zeros(ofpacts, 2);
-        const union expr_constant *c = boot_opt->value.values;
+        const struct expr_constant *c = boot_opt->value.values;
         opt_header[0] = boot_opt->option->code;
         opt_header[1] = strlen(c->string);
         ofpbuf_put(ofpacts, c->string, opt_header[1]);
@@ -3033,7 +3033,7 @@ encode_PUT_DHCPV4_OPTS(const struct ovnact_put_opts *pdo,
         find_opt(pdo->options, pdo->n_options, DHCP_OPT_BOOTFILE_ALT_CODE);
     if (boot_alt_opt) {
         uint8_t *opt_header = ofpbuf_put_zeros(ofpacts, 2);
-        const union expr_constant *c = boot_alt_opt->value.values;
+        const struct expr_constant *c = boot_alt_opt->value.values;
         opt_header[0] = boot_alt_opt->option->code;
         opt_header[1] = strlen(c->string);
         ofpbuf_put(ofpacts, c->string, opt_header[1]);
@@ -3043,7 +3043,7 @@ encode_PUT_DHCPV4_OPTS(const struct ovnact_put_opts *pdo,
         pdo->options, pdo->n_options, DHCP_OPT_NEXT_SERVER_CODE);
     if (next_server_opt) {
         uint8_t *opt_header = ofpbuf_put_zeros(ofpacts, 2);
-        const union expr_constant *c = next_server_opt->value.values;
+        const struct expr_constant *c = next_server_opt->value.values;
         opt_header[0] = next_server_opt->option->code;
         opt_header[1] = sizeof(ovs_be32);
         ofpbuf_put(ofpacts, &c->value.ipv4, sizeof(ovs_be32));
@@ -3247,7 +3247,7 @@ parse_put_nd_ra_opts(struct action_context *ctx, const 
struct expr_field *dst,
     /* Let's validate the options. */
     for (size_t i = 0; i < po->n_options; i++) {
         const struct ovnact_gen_option *o = &po->options[i];
-        const union expr_constant *c = o->value.values;
+        const struct expr_constant *c = o->value.values;
         if (o->value.n_values > 1) {
             lexer_error(ctx->lexer, "Invalid value for \"%s\" option",
                         o->option->name);
@@ -3430,7 +3430,7 @@ static void
 encode_put_nd_ra_option(const struct ovnact_gen_option *o,
                         struct ofpbuf *ofpacts, ptrdiff_t ra_offset)
 {
-    const union expr_constant *c = o->value.values;
+    const struct expr_constant *c = o->value.values;
 
     switch (o->option->code) {
     case ND_RA_FLAG_ADDR_MODE:
diff --git a/lib/expr.c b/lib/expr.c
index 0cb44e1b6..286782025 100644
--- a/lib/expr.c
+++ b/lib/expr.c
@@ -179,12 +179,10 @@ expr_combine(enum expr_type type, struct expr *a, struct 
expr *b)
         } else {
             ovs_list_push_back(&a->andor, &b->node);
         }
-        free(a->as_name);
         a->as_name = NULL;
         return a;
     } else if (b->type == type) {
         ovs_list_push_front(&b->andor, &a->node);
-        free(b->as_name);
         b->as_name = NULL;
         return b;
     } else {
@@ -521,12 +519,13 @@ static bool parse_field(struct expr_context *, struct 
expr_field *);
 
 static struct expr *
 make_cmp__(const struct expr_field *f, enum expr_relop r,
-             const union expr_constant *c)
+             const struct expr_constant *c)
 {
     struct expr *e = xzalloc(sizeof *e);
     e->type = EXPR_T_CMP;
     e->cmp.symbol = f->symbol;
     e->cmp.relop = r;
+    e->as_name = c->as_name;
     if (f->symbol->width) {
         bitwise_copy(&c->value, sizeof c->value, 0,
                      &e->cmp.value, sizeof e->cmp.value, f->ofs,
@@ -547,7 +546,7 @@ make_cmp__(const struct expr_field *f, enum expr_relop r,
 
 /* Returns the minimum reasonable width for integer constant 'c'. */
 static int
-expr_constant_width(const union expr_constant *c)
+expr_constant_width(const struct expr_constant *c)
 {
     if (c->masked) {
         return mf_subvalue_width(&c->mask);
@@ -674,10 +673,7 @@ make_cmp(struct expr_context *ctx,
         e = expr_combine(r == EXPR_R_EQ ? EXPR_T_OR : EXPR_T_AND,
                          e, make_cmp__(f, r, &cs->values[i]));
     }
-    /* Track address set */
-    if (r == EXPR_R_EQ && e->type == EXPR_T_OR && cs->as_name) {
-        e->as_name = xstrdup(cs->as_name);
-    }
+
 exit:
     expr_constant_set_destroy(cs);
     return e;
@@ -797,11 +793,10 @@ parse_addr_sets(struct expr_context *ctx, struct 
expr_constant_set *cs,
         }
     }
 
-    struct expr_constant_set *addr_sets
-        = (ctx->addr_sets
-           ? shash_find_data(ctx->addr_sets, ctx->lexer->token.s)
-           : NULL);
-    if (!addr_sets) {
+    struct shash_node *node = ctx->addr_sets
+                              ? shash_find(ctx->addr_sets, ctx->lexer->token.s)
+                              : NULL;
+    if (!node) {
         lexer_syntax_error(ctx->lexer, "expecting address set name");
         return false;
     }
@@ -810,17 +805,16 @@ parse_addr_sets(struct expr_context *ctx, struct 
expr_constant_set *cs,
         return false;
     }
 
-    if (!cs->n_values) {
-        cs->as_name = xstrdup(ctx->lexer->token.s);
-    }
-
+    struct expr_constant_set *addr_sets = node->data;
     size_t n_values = cs->n_values + addr_sets->n_values;
     if (n_values >= *allocated_values) {
         cs->values = xrealloc(cs->values, n_values * sizeof *cs->values);
         *allocated_values = n_values;
     }
     for (size_t i = 0; i < addr_sets->n_values; i++) {
-        cs->values[cs->n_values++] = addr_sets->values[i];
+        struct expr_constant *c = &cs->values[cs->n_values++];
+        *c = addr_sets->values[i];
+        c->as_name = node->name;
     }
 
     return true;
@@ -859,8 +853,9 @@ parse_port_group(struct expr_context *ctx, struct 
expr_constant_set *cs,
         *allocated_values = n_values;
     }
     for (size_t i = 0; i < port_group->n_values; i++) {
-        cs->values[cs->n_values++].string =
-            xstrdup(port_group->values[i].string);
+        struct expr_constant *c = &cs->values[cs->n_values++];
+        c->string = xstrdup(port_group->values[i].string);
+        c->as_name = NULL;
     }
 
     return true;
@@ -875,11 +870,6 @@ parse_constant(struct expr_context *ctx, struct 
expr_constant_set *cs,
                                 sizeof *cs->values);
     }
 
-    /* Combining other values to the constant set that is tracking an
-     * address set, so untrack it. */
-    free(cs->as_name);
-    cs->as_name = NULL;
-
     if (ctx->lexer->token.type == LEX_T_TEMPLATE) {
         lexer_error(ctx->lexer, "Unexpanded template.");
         return false;
@@ -887,7 +877,9 @@ parse_constant(struct expr_context *ctx, struct 
expr_constant_set *cs,
         if (!assign_constant_set_type(ctx, cs, EXPR_C_STRING)) {
             return false;
         }
-        cs->values[cs->n_values++].string = xstrdup(ctx->lexer->token.s);
+        struct expr_constant *c = &cs->values[cs->n_values++];
+        c->string = xstrdup(ctx->lexer->token.s);
+        c->as_name = NULL;
         lexer_get(ctx->lexer);
         return true;
     } else if (ctx->lexer->token.type == LEX_T_INTEGER ||
@@ -896,13 +888,14 @@ parse_constant(struct expr_context *ctx, struct 
expr_constant_set *cs,
             return false;
         }
 
-        union expr_constant *c = &cs->values[cs->n_values++];
+        struct expr_constant *c = &cs->values[cs->n_values++];
         c->value = ctx->lexer->token.value;
         c->format = ctx->lexer->token.format;
         c->masked = ctx->lexer->token.type == LEX_T_MASKED_INTEGER;
         if (c->masked) {
             c->mask = ctx->lexer->token.mask;
         }
+        c->as_name = NULL;
         lexer_get(ctx->lexer);
         return true;
     } else if (ctx->lexer->token.type == LEX_T_MACRO) {
@@ -961,7 +954,7 @@ parse_constant_set(struct expr_context *ctx, struct 
expr_constant_set *cs)
  * indeterminate. */
 bool
 expr_constant_parse(struct lexer *lexer, const struct expr_field *f,
-                    union expr_constant *c)
+                    struct expr_constant *c)
 {
     if (lexer->error) {
         return false;
@@ -987,7 +980,7 @@ expr_constant_parse(struct lexer *lexer, const struct 
expr_field *f,
 /* Appends to 's' a re-parseable representation of constant 'c' with the given
  * 'type'. */
 void
-expr_constant_format(const union expr_constant *c,
+expr_constant_format(const struct expr_constant *c,
                      enum expr_constant_type type, struct ds *s)
 {
     if (type == EXPR_C_STRING) {
@@ -1010,7 +1003,7 @@ expr_constant_format(const union expr_constant *c,
  *
  * Does not free(c). */
 void
-expr_constant_destroy(const union expr_constant *c,
+expr_constant_destroy(const struct expr_constant *c,
                       enum expr_constant_type type)
 {
     if (c && type == EXPR_C_STRING) {
@@ -1043,7 +1036,7 @@ expr_constant_set_format(const struct expr_constant_set 
*cs, struct ds *s)
         ds_put_char(s, '{');
     }
 
-    for (const union expr_constant *c = cs->values;
+    for (const struct expr_constant *c = cs->values;
          c < &cs->values[cs->n_values]; c++) {
         if (c != cs->values) {
             ds_put_cstr(s, ", ");
@@ -1067,15 +1060,14 @@ expr_constant_set_destroy(struct expr_constant_set *cs)
             }
         }
         free(cs->values);
-        free(cs->as_name);
     }
 }
 
 static int
 compare_expr_constant_integer_cb(const void *a_, const void *b_)
 {
-    const union expr_constant *a = a_;
-    const union expr_constant *b = b_;
+    const struct expr_constant *a = a_;
+    const struct expr_constant *b = b_;
 
     int d = memcmp(&a->value, &b->value, sizeof a->value);
     if (d) {
@@ -1114,7 +1106,7 @@ expr_constant_set_create_integers(const char *const 
*values, size_t n_values)
             VLOG_WARN("Invalid constant set entry: '%s', token type: %d",
                       values[i], lex.token.type);
         } else {
-            union expr_constant *c = &cs->values[cs->n_values++];
+            struct expr_constant *c = &cs->values[cs->n_values++];
             c->value = lex.token.value;
             c->format = lex.token.format;
             c->masked = lex.token.type == LEX_T_MASKED_INTEGER;
@@ -1135,7 +1127,7 @@ expr_constant_set_create_integers(const char *const 
*values, size_t n_values)
 
 static void
 expr_constant_set_add_value(struct expr_constant_set **p_cs,
-                            union expr_constant *c, size_t *allocated)
+                            struct expr_constant *c, size_t *allocated)
 {
     struct expr_constant_set *cs = *p_cs;
     if (!cs) {
@@ -1246,7 +1238,7 @@ expr_const_sets_add_strings(struct shash *const_sets, 
const char *name,
                         values[i], name);
             continue;
         }
-        union expr_constant *c = &cs->values[cs->n_values++];
+        struct expr_constant *c = &cs->values[cs->n_values++];
         c->string = xstrdup(values[i]);
     }
 
@@ -1359,7 +1351,7 @@ expr_parse_primary(struct expr_context *ctx, bool *atomic)
 
             *atomic = true;
 
-            union expr_constant *cst = xzalloc(sizeof *cst);
+            struct expr_constant *cst = xzalloc(sizeof *cst);
             cst->format = LEX_F_HEXADECIMAL;
             cst->masked = false;
 
@@ -1367,7 +1359,6 @@ expr_parse_primary(struct expr_context *ctx, bool *atomic)
             c.values = cst;
             c.n_values = 1;
             c.in_curlies = false;
-            c.as_name = NULL;
             return make_cmp(ctx, &f, EXPR_R_NE, &c);
         } else if (parse_relop(ctx, &r) && parse_constant_set(ctx, &c)) {
             return make_cmp(ctx, &f, r, &c);
@@ -1834,7 +1825,6 @@ expr_symtab_destroy(struct shash *symtab)
 static struct expr *
 expr_clone_cmp(struct expr *expr)
 {
-    ovs_assert(!expr->as_name);
     struct expr *new = xmemdup(expr, sizeof *expr);
     if (!new->cmp.symbol->width) {
         new->cmp.string = xstrdup(new->cmp.string);
@@ -1858,7 +1848,6 @@ expr_clone_andor(struct expr *expr)
 static struct expr *
 expr_clone_condition(struct expr *expr)
 {
-    ovs_assert(!expr->as_name);
     struct expr *new = xmemdup(expr, sizeof *expr);
     new->cond.string = xstrdup(new->cond.string);
     return new;
@@ -1894,8 +1883,6 @@ expr_destroy(struct expr *expr)
         return;
     }
 
-    free(expr->as_name);
-
     struct expr *sub;
 
     switch (expr->type) {
@@ -2567,7 +2554,6 @@ crush_or_supersets(struct expr *expr, const struct 
expr_symbol *symbol)
      * mask sizes. */
     size_t n = ovs_list_size(&expr->andor);
     struct expr **subs = xmalloc(n * sizeof *subs);
-    bool modified = false;
     /* Linked list over the 'subs' array to quickly skip deleted elements,
      * i.e. the index of the next potentially non-NULL element. */
     size_t *next = xmalloc(n * sizeof *next);
@@ -2596,14 +2582,14 @@ crush_or_supersets(struct expr *expr, const struct 
expr_symbol *symbol)
             next[last] = i;
             last = i;
         } else {
+            /* Remove address set reference from the duplicate. */
+            subs[last]->as_name = NULL;
             expr_destroy(subs[i]);
             subs[i] = NULL;
-            modified = true;
         }
     }
 
-    if (!symbol->width || symbol->level != EXPR_L_ORDINAL
-        || (!modified && expr->as_name)) {
+    if (!symbol->width || symbol->level != EXPR_L_ORDINAL) {
         /* Not a fully maskable field or this expression is tracking an
          * address set.  Don't try to optimize to preserve address set I-P. */
         goto done;
@@ -2658,10 +2644,11 @@ crush_or_supersets(struct expr *expr, const struct 
expr_symbol *symbol)
             if (expr_bitmap_intersect_check(a_value, a_mask, b_value, b_mask,
                                             bit_width)
                 && bitmap_is_superset(b_mask, a_mask, bit_width)) {
-                /* 'a' is the same expression with a smaller mask. */
+                /* 'a' is the same expression with a smaller mask.
+                 * Remove address set reference from the duplicate. */
+                a->as_name = NULL;
                 expr_destroy(subs[j]);
                 subs[j] = NULL;
-                modified = true;
 
                 /* Shorten the path for the next round. */
                 if (last) {
@@ -2685,12 +2672,6 @@ done:
         }
     }
 
-    if (modified) {
-        /* Members modified, so untrack address set. */
-        free(expr->as_name);
-        expr->as_name = NULL;
-    }
-
     free(next);
     free(subs);
     return expr;
@@ -3271,10 +3252,10 @@ add_disjunction(const struct expr *or,
     LIST_FOR_EACH (sub, node, &or->andor) {
         struct expr_match *match = expr_match_new(m, clause, n_clauses,
                                                   conj_id);
-        if (or->as_name) {
+        if (sub->as_name) {
             ovs_assert(sub->type == EXPR_T_CMP);
             ovs_assert(sub->cmp.symbol->width);
-            match->as_name = xstrdup(or->as_name);
+            match->as_name = xstrdup(sub->as_name);
             match->as_ip = sub->cmp.value.ipv6;
             match->as_mask = sub->cmp.mask.ipv6;
         }
diff --git a/tests/ovn-controller.at b/tests/ovn-controller.at
index fdcc5aab2..626dd34f6 100644
--- a/tests/ovn-controller.at
+++ b/tests/ovn-controller.at
@@ -1630,7 +1630,9 @@ 
priority=1100,ip,reg15=0x$port_key,metadata=0x$dp_key,nw_src=10.0.0.8 actions=lo
 done
 
 reprocess_count_new=$(read_counter consider_logical_flow)
-AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [10
+# First 2 reprocess are due to change from 1 IP in AS to 2.
+# Last 5 is due to overlap in IP addresses between as1 and as2.
+AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [7
 ])
 
 # Remove the IPs from as1 and as2, 1 IP each time.
@@ -1653,9 +1655,9 @@ for i in $(seq 10); do
 done
 
 reprocess_count_new=$(read_counter consider_logical_flow)
-# In this case the as1 and as2 are merged to a single OR expr, so we lose 
track of
-# address set information - can't handle deletion incrementally.
-AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [10
+# First 5 are due to overlap in IP addresses between as1 and as2.
+# Last 2 are due to change from 2 IP in AS to 1.
+AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [7
 ])
 
 OVN_CLEANUP([hv1])
@@ -1822,7 +1824,7 @@ 
priority=1100,ip,reg15=0x$port_key,metadata=0x$dp_key,nw_src=10.0.0.5 actions=co
 priority=1100,ip,reg15=0x$port_key,metadata=0x$dp_key,nw_src=10.10.10.10 
actions=conjunction,2/2)
 ])
 reprocess_count_new=$(read_counter consider_logical_flow)
-AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [1
+AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [0
 ])
 
 # Delete 2 IPs
@@ -1842,7 +1844,7 @@ 
priority=1100,ip,reg15=0x$port_key,metadata=0x$dp_key,nw_src=10.0.0.3 actions=co
 priority=1100,ip,reg15=0x$port_key,metadata=0x$dp_key,nw_src=10.10.10.10 
actions=conjunction,2/2)
 ])
 reprocess_count_new=$(read_counter consider_logical_flow)
-AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [1
+AT_CHECK([echo $(($reprocess_count_new - $reprocess_count_old))], [0], [0
 ])
 
 OVN_CLEANUP([hv1])
-- 
2.44.0

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