samples/bpf: change _kern suffix to .bpf with BPF test programs

This commit changes the _kern suffix to .bpf with the BPF test programs.
With this modification, test programs will inherit the benefit of the
new CLANG-BPF compile target.

Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Link: https://lore.kernel.org/r/20230115071613.125791-11-danieltimlee@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

1 files changed, 0 insertions, 176 deletions

diff --git a/samples/bpf/test_map_in_map_kern.c b/samples/bpf/test_map_in_map_kern.c
deleted file mode 100644
index 1883559e5977..000000000000
--- a/samples/bpf/test_map_in_map_kern.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * Copyright (c) 2017 Facebook
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- */
-#define KBUILD_MODNAME "foo"
-#include "vmlinux.h"
-#include <linux/version.h>
-#include <bpf/bpf_helpers.h>
-#include <bpf/bpf_tracing.h>
-#include <bpf/bpf_core_read.h>
-
-#define MAX_NR_PORTS 65536
-
-#define EINVAL 22
-#define ENOENT 2
-
-/* map #0 */
-struct inner_a {
-	__uint(type, BPF_MAP_TYPE_ARRAY);
-	__type(key, u32);
-	__type(value, int);
-	__uint(max_entries, MAX_NR_PORTS);
-} port_a SEC(".maps");
-
-/* map #1 */
-struct inner_h {
-	__uint(type, BPF_MAP_TYPE_HASH);
-	__type(key, u32);
-	__type(value, int);
-	__uint(max_entries, 1);
-} port_h SEC(".maps");
-
-/* map #2 */
-struct {
-	__uint(type, BPF_MAP_TYPE_HASH);
-	__type(key, u32);
-	__type(value, int);
-	__uint(max_entries, 1);
-} reg_result_h SEC(".maps");
-
-/* map #3 */
-struct {
-	__uint(type, BPF_MAP_TYPE_HASH);
-	__type(key, u32);
-	__type(value, int);
-	__uint(max_entries, 1);
-} inline_result_h SEC(".maps");
-
-/* map #4 */ /* Test case #0 */
-struct {
-	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
-	__uint(max_entries, MAX_NR_PORTS);
-	__uint(key_size, sizeof(u32));
-	__array(values, struct inner_a); /* use inner_a as inner map */
-} a_of_port_a SEC(".maps");
-
-/* map #5 */ /* Test case #1 */
-struct {
-	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
-	__uint(max_entries, 1);
-	__uint(key_size, sizeof(u32));
-	__array(values, struct inner_a); /* use inner_a as inner map */
-} h_of_port_a SEC(".maps");
-
-/* map #6 */ /* Test case #2 */
-struct {
-	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
-	__uint(max_entries, 1);
-	__uint(key_size, sizeof(u32));
-	__array(values, struct inner_h); /* use inner_h as inner map */
-} h_of_port_h SEC(".maps");
-
-static __always_inline int do_reg_lookup(void *inner_map, u32 port)
-{
-	int *result;
-
-	result = bpf_map_lookup_elem(inner_map, &port);
-	return result ? *result : -ENOENT;
-}
-
-static __always_inline int do_inline_array_lookup(void *inner_map, u32 port)
-{
-	int *result;
-
-	if (inner_map != &port_a)
-		return -EINVAL;
-
-	result = bpf_map_lookup_elem(&port_a, &port);
-	return result ? *result : -ENOENT;
-}
-
-static __always_inline int do_inline_hash_lookup(void *inner_map, u32 port)
-{
-	int *result;
-
-	if (inner_map != &port_h)
-		return -EINVAL;
-
-	result = bpf_map_lookup_elem(&port_h, &port);
-	return result ? *result : -ENOENT;
-}
-
-SEC("kprobe/__sys_connect")
-int trace_sys_connect(struct pt_regs *ctx)
-{
-	struct sockaddr_in6 *in6;
-	u16 test_case, port, dst6[8];
-	int addrlen, ret, inline_ret, ret_key = 0;
-	u32 port_key;
-	void *outer_map, *inner_map;
-	bool inline_hash = false;
-
-	in6 = (struct sockaddr_in6 *)PT_REGS_PARM2_CORE(ctx);
-	addrlen = (int)PT_REGS_PARM3_CORE(ctx);
-
-	if (addrlen != sizeof(*in6))
-		return 0;
-
-	ret = bpf_probe_read_user(dst6, sizeof(dst6), &in6->sin6_addr);
-	if (ret) {
-		inline_ret = ret;
-		goto done;
-	}
-
-	if (dst6[0] != 0xdead || dst6[1] != 0xbeef)
-		return 0;
-
-	test_case = dst6[7];
-
-	ret = bpf_probe_read_user(&port, sizeof(port), &in6->sin6_port);
-	if (ret) {
-		inline_ret = ret;
-		goto done;
-	}
-
-	port_key = port;
-
-	ret = -ENOENT;
-	if (test_case == 0) {
-		outer_map = &a_of_port_a;
-	} else if (test_case == 1) {
-		outer_map = &h_of_port_a;
-	} else if (test_case == 2) {
-		outer_map = &h_of_port_h;
-	} else {
-		ret = __LINE__;
-		inline_ret = ret;
-		goto done;
-	}
-
-	inner_map = bpf_map_lookup_elem(outer_map, &port_key);
-	if (!inner_map) {
-		ret = __LINE__;
-		inline_ret = ret;
-		goto done;
-	}
-
-	ret = do_reg_lookup(inner_map, port_key);
-
-	if (test_case == 0 || test_case == 1)
-		inline_ret = do_inline_array_lookup(inner_map, port_key);
-	else
-		inline_ret = do_inline_hash_lookup(inner_map, port_key);
-
-done:
-	bpf_map_update_elem(&reg_result_h, &ret_key, &ret, BPF_ANY);
-	bpf_map_update_elem(&inline_result_h, &ret_key, &inline_ret, BPF_ANY);
-
-	return 0;
-}
-
-char _license[] SEC("license") = "GPL";
-u32 _version SEC("version") = LINUX_VERSION_CODE;