change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/samples/bpf/syscall_tp_user.c
..
..
@@ -1,23 +1,16 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /* Copyright (c) 2017 Facebook
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of version 2 of the GNU General Public
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- * License as published by the Free Software Foundation.
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  */
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 #include <stdio.h>
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 #include <unistd.h>
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 #include <fcntl.h>
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 #include <stdlib.h>
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-#include <signal.h>
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-#include <linux/bpf.h>
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 #include <string.h>
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 #include <linux/perf_event.h>
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 #include <errno.h>
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-#include <assert.h>
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-#include <stdbool.h>
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 #include <sys/resource.h>
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+#include <bpf/libbpf.h>
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 #include <bpf/bpf.h>
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-#include "bpf_load.h"
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14
 
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 /* This program verifies bpf attachment to tracepoint sys_enter_* and sys_exit_*.
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  * This requires kernel CONFIG_FTRACE_SYSCALLS to be set.
..
..
@@ -52,16 +45,44 @@
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45
 
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 static int test(char *filename, int num_progs)
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 {
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-	int i, fd, map0_fds[num_progs], map1_fds[num_progs];
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+	int map0_fds[num_progs], map1_fds[num_progs], fd, i, j = 0;
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+	struct bpf_link *links[num_progs * 4];
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+	struct bpf_object *objs[num_progs];
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+	struct bpf_program *prog;
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 	for (i = 0; i < num_progs; i++) {
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-		if (load_bpf_file(filename)) {
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-			fprintf(stderr, "%s", bpf_log_buf);
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-			return 1;
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+		objs[i] = bpf_object__open_file(filename, NULL);
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+		if (libbpf_get_error(objs[i])) {
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+			fprintf(stderr, "opening BPF object file failed\n");
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+			objs[i] = NULL;
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+			goto cleanup;
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 		}
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-		printf("prog #%d: map ids %d %d\n", i, map_fd[0], map_fd[1]);
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-		map0_fds[i] = map_fd[0];
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-		map1_fds[i] = map_fd[1];
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+
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+		/* load BPF program */
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+		if (bpf_object__load(objs[i])) {
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+			fprintf(stderr, "loading BPF object file failed\n");
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+			goto cleanup;
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+		}
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+
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+		map0_fds[i] = bpf_object__find_map_fd_by_name(objs[i],
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+							      "enter_open_map");
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+		map1_fds[i] = bpf_object__find_map_fd_by_name(objs[i],
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+							      "exit_open_map");
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+		if (map0_fds[i] < 0 || map1_fds[i] < 0) {
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+			fprintf(stderr, "finding a map in obj file failed\n");
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+			goto cleanup;
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+		}
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+
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+		bpf_object__for_each_program(prog, objs[i]) {
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+			links[j] = bpf_program__attach(prog);
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+			if (libbpf_get_error(links[j])) {
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+				fprintf(stderr, "bpf_program__attach failed\n");
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+				links[j] = NULL;
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+				goto cleanup;
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+			}
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+			j++;
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+		}
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+		printf("prog #%d: map ids %d %d\n", i, map0_fds[i], map1_fds[i]);
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 	}
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87
 
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 	/* current load_bpf_file has perf_event_open default pid = -1
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@@ -83,6 +104,12 @@
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 		verify_map(map1_fds[i]);
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 	}
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+cleanup:
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+	for (j--; j >= 0; j--)
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+		bpf_link__destroy(links[j]);
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+
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+	for (i--; i >= 0; i--)
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+		bpf_object__close(objs[i]);
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 	return 0;
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 }
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