[PATCH v6] graph: mcore: optimize graph search

[Huichao Cai]

Hi, Thomas
I tested(See below) this patch locally and it can suppress this error(github build: failed).
Is the difference in CI results from patchwork due to different versions of abidiff?
My abidiff version:
[root at localhost dpdk.chc1]# abidiff --version
abidiff: 1.6.0
There is currently no version 2.6.0 abidiff available in my local environment...

The following is the testing process and results:

==========When not adding the [suppress_type] field==========
[root at localhost dpdk.chc1]# abidiff --suppr ./devtools/libabigail.abignore --no-added-syms --headers-dir1 /tmp/v24.11/build-gcc-shared/usr/local/include --headers-dir2 ./build-gcc-shared/install/usr/local/include /tmp/v24.11/build-gcc-shared/usr/local/lib64/librte_graph.so.25.0 ./build-gcc-shared/install/usr/local/lib64/librte_graph.so.25.1
Functions changes summary: 0 Removed, 1 Changed (5 filtered out), 0 Added functions
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable

1 function with some indirect sub-type change:

  [C]'function rte_node_t __rte_node_register(const rte_node_register*)' at node.c:58:1 has some indirect sub-type changes:
    parameter 1 of type 'const rte_node_register*' has sub-type changes:
      in pointed to type 'const rte_node_register':
        in unqualified underlying type 'struct rte_node_register' at rte_graph.h:482:1:
          type size hasn't changed
          1 data member changes (2 filtered):
           type of 'rte_node_fini_t rte_node_register::fini' changed:
             underlying type 'void (const rte_graph*, rte_node*)*' changed:
               in pointed to type 'function type void (const rte_graph*, rte_node*)':
                 parameter 2 of type 'rte_node*' has sub-type changes:
                   in pointed to type 'struct rte_node' at rte_graph_worker_common.h:92:1:
                     type size hasn't changed
                     no data member change (1 filtered);
                     1 data member change:
                      anonymous data member at offset 1536 (in bits) changed from:
                        union {struct {unsigned int lcore_id; uint64_t total_sched_objs; uint64_t total_sched_fail;} dispatch;}
                      to:
                        union {struct {unsigned int lcore_id; uint64_t total_sched_objs; uint64_t total_sched_fail; rte_graph* graph;} dispatch;}

==========When adding the [suppress_type] field==========
root at localhost devtools]# cat libabigail.abignore 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Core suppression rules: DO NOT TOUCH ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

[suppress_function]
        symbol_version = EXPERIMENTAL
[suppress_variable]
        symbol_version = EXPERIMENTAL

[suppress_function]
        symbol_version = INTERNAL
[suppress_variable]
        symbol_version = INTERNAL

; Ignore generated PMD information strings
[suppress_variable]
        name_regexp = _pmd_info$

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Special rules to skip libraries ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; This is not a libabigail rule (see check-abi.sh).
; This is used for driver removal and other special cases like mlx glue libs.
;
; SKIP_LIBRARY=librte_common_mlx5_glue
; SKIP_LIBRARY=librte_net_mlx4_glue

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Experimental APIs exceptions ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Temporary exceptions till next major ABI version ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[suppress_type]
       name = rte_node
       has_size_change = no
       has_data_member_inserted_between =
{offset_of(total_sched_fail), offset_of(xstat_off)}

[root at localhost dpdk.chc1]# abidiff --suppr ./devtools/libabigail.abignore --no-added-syms --headers-dir1 /tmp/v24.11/build-gcc-shared/usr/local/include --headers-dir2 ./build-gcc-shared/install/usr/local/include /tmp/v24.11/build-gcc-shared/usr/local/lib64/librte_graph.so.25.0 ./build-gcc-shared/install/usr/local/lib64/librte_graph.so.25.1
Functions changes summary: 0 Removed, 0 Changed (6 filtered out), 0 Added functions
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable