Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/samples/bpf/fds_example.c b/samples/bpf/fds_example.c
index 9854854..2d4b717 100644
--- a/samples/bpf/fds_example.c
+++ b/samples/bpf/fds_example.c
@@ -14,8 +14,8 @@
 
 #include <bpf/bpf.h>
 
+#include "libbpf.h"
 #include "bpf_insn.h"
-#include "bpf_load.h"
 #include "sock_example.h"
 
 #define BPF_F_PIN	(1 << 0)
@@ -57,10 +57,14 @@
 		BPF_EXIT_INSN(),
 	};
 	size_t insns_cnt = sizeof(insns) / sizeof(struct bpf_insn);
+	char bpf_log_buf[BPF_LOG_BUF_SIZE];
+	struct bpf_object *obj;
+	int prog_fd;
 
 	if (object) {
-		assert(!load_bpf_file((char *)object));
-		return prog_fd[0];
+		assert(!bpf_prog_load(object, BPF_PROG_TYPE_UNSPEC,
+				      &obj, &prog_fd));
+		return prog_fd;
 	} else {
 		return bpf_load_program(BPF_PROG_TYPE_SOCKET_FILTER,
 					insns, insns_cnt, "GPL", 0,