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Linux/tools/testing/selftests/bpf/prog_tests/kfunc_module_order.c

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  1 // SPDX-License-Identifier: GPL-2.0
  2 #include <test_progs.h>
  3 #include <testing_helpers.h>
  4 
  5 #include "kfunc_module_order.skel.h"
  6 
  7 static int test_run_prog(const struct bpf_program *prog,
  8                          struct bpf_test_run_opts *opts)
  9 {
 10         int err;
 11 
 12         err = bpf_prog_test_run_opts(bpf_program__fd(prog), opts);
 13         if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
 14                 return err;
 15 
 16         if (!ASSERT_EQ((int)opts->retval, 0, bpf_program__name(prog)))
 17                 return -EINVAL;
 18 
 19         return 0;
 20 }
 21 
 22 void test_kfunc_module_order(void)
 23 {
 24         struct kfunc_module_order *skel;
 25         char pkt_data[64] = {};
 26         int err = 0;
 27 
 28         DECLARE_LIBBPF_OPTS(bpf_test_run_opts, test_opts, .data_in = pkt_data,
 29                             .data_size_in = sizeof(pkt_data));
 30 
 31         err = load_module("bpf_test_modorder_x.ko",
 32                           env_verbosity > VERBOSE_NONE);
 33         if (!ASSERT_OK(err, "load bpf_test_modorder_x.ko"))
 34                 return;
 35 
 36         err = load_module("bpf_test_modorder_y.ko",
 37                           env_verbosity > VERBOSE_NONE);
 38         if (!ASSERT_OK(err, "load bpf_test_modorder_y.ko"))
 39                 goto exit_modx;
 40 
 41         skel = kfunc_module_order__open_and_load();
 42         if (!ASSERT_OK_PTR(skel, "kfunc_module_order__open_and_load()")) {
 43                 err = -EINVAL;
 44                 goto exit_mods;
 45         }
 46 
 47         test_run_prog(skel->progs.call_kfunc_xy, &test_opts);
 48         test_run_prog(skel->progs.call_kfunc_yx, &test_opts);
 49 
 50         kfunc_module_order__destroy(skel);
 51 exit_mods:
 52         unload_module("bpf_test_modorder_y", env_verbosity > VERBOSE_NONE);
 53 exit_modx:
 54         unload_module("bpf_test_modorder_x", env_verbosity > VERBOSE_NONE);
 55 }
 56 

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