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authorLinkui Xiao <xiaolinkui@kylinos.cn>2022-07-12 15:23:02 +0800
committerAndrii Nakryiko <andrii@kernel.org>2022-07-13 21:43:52 -0700
commitb1fc28b338860b6c06a7a5881005a1ca9b108ba2 (patch)
tree4fc19e93557bd3e2b98f1768970f8fae7ad1ff8b /samples
parent8ab4cdcf03d0b060fbf73f76460f199bbd759ff7 (diff)
samples: bpf: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE
The ARRAY_SIZE macro is more compact and more formal in linux source. Signed-off-by: Linkui Xiao <xiaolinkui@kylinos.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/bpf/20220712072302.13761-1-xiaolinkui@kylinos.cn
Diffstat (limited to 'samples')
-rw-r--r--samples/bpf/fds_example.c3
-rw-r--r--samples/bpf/sock_example.c3
-rw-r--r--samples/bpf/test_cgrp2_attach.c3
-rw-r--r--samples/bpf/test_lru_dist.c2
-rw-r--r--samples/bpf/test_map_in_map_user.c4
-rw-r--r--samples/bpf/tracex5_user.c3
6 files changed, 12 insertions, 6 deletions
diff --git a/samples/bpf/fds_example.c b/samples/bpf/fds_example.c
index 16dbf49e0f19..88a26f3ce201 100644
--- a/samples/bpf/fds_example.c
+++ b/samples/bpf/fds_example.c
@@ -17,6 +17,7 @@
#include <bpf/libbpf.h>
#include "bpf_insn.h"
#include "sock_example.h"
+#include "bpf_util.h"
#define BPF_F_PIN (1 << 0)
#define BPF_F_GET (1 << 1)
@@ -52,7 +53,7 @@ static int bpf_prog_create(const char *object)
BPF_MOV64_IMM(BPF_REG_0, 1),
BPF_EXIT_INSN(),
};
- size_t insns_cnt = sizeof(insns) / sizeof(struct bpf_insn);
+ size_t insns_cnt = ARRAY_SIZE(insns);
struct bpf_object *obj;
int err;
diff --git a/samples/bpf/sock_example.c b/samples/bpf/sock_example.c
index a88f69504c08..5b66f2401b96 100644
--- a/samples/bpf/sock_example.c
+++ b/samples/bpf/sock_example.c
@@ -29,6 +29,7 @@
#include <bpf/bpf.h>
#include "bpf_insn.h"
#include "sock_example.h"
+#include "bpf_util.h"
char bpf_log_buf[BPF_LOG_BUF_SIZE];
@@ -58,7 +59,7 @@ static int test_sock(void)
BPF_MOV64_IMM(BPF_REG_0, 0), /* r0 = 0 */
BPF_EXIT_INSN(),
};
- size_t insns_cnt = sizeof(prog) / sizeof(struct bpf_insn);
+ size_t insns_cnt = ARRAY_SIZE(prog);
LIBBPF_OPTS(bpf_prog_load_opts, opts,
.log_buf = bpf_log_buf,
.log_size = BPF_LOG_BUF_SIZE,
diff --git a/samples/bpf/test_cgrp2_attach.c b/samples/bpf/test_cgrp2_attach.c
index 6d90874b09c3..68ce69457afe 100644
--- a/samples/bpf/test_cgrp2_attach.c
+++ b/samples/bpf/test_cgrp2_attach.c
@@ -31,6 +31,7 @@
#include <bpf/bpf.h>
#include "bpf_insn.h"
+#include "bpf_util.h"
enum {
MAP_KEY_PACKETS,
@@ -70,7 +71,7 @@ static int prog_load(int map_fd, int verdict)
BPF_MOV64_IMM(BPF_REG_0, verdict), /* r0 = verdict */
BPF_EXIT_INSN(),
};
- size_t insns_cnt = sizeof(prog) / sizeof(struct bpf_insn);
+ size_t insns_cnt = ARRAY_SIZE(prog);
LIBBPF_OPTS(bpf_prog_load_opts, opts,
.log_buf = bpf_log_buf,
.log_size = BPF_LOG_BUF_SIZE,
diff --git a/samples/bpf/test_lru_dist.c b/samples/bpf/test_lru_dist.c
index be98ccb4952f..5efb91763d65 100644
--- a/samples/bpf/test_lru_dist.c
+++ b/samples/bpf/test_lru_dist.c
@@ -523,7 +523,7 @@ int main(int argc, char **argv)
return -1;
}
- for (f = 0; f < sizeof(map_flags) / sizeof(*map_flags); f++) {
+ for (f = 0; f < ARRAY_SIZE(map_flags); f++) {
test_lru_loss0(BPF_MAP_TYPE_LRU_HASH, map_flags[f]);
test_lru_loss1(BPF_MAP_TYPE_LRU_HASH, map_flags[f]);
test_parallel_lru_loss(BPF_MAP_TYPE_LRU_HASH, map_flags[f],
diff --git a/samples/bpf/test_map_in_map_user.c b/samples/bpf/test_map_in_map_user.c
index e8b4cc184ac9..652ec720533d 100644
--- a/samples/bpf/test_map_in_map_user.c
+++ b/samples/bpf/test_map_in_map_user.c
@@ -12,6 +12,8 @@
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
+#include "bpf_util.h"
+
static int map_fd[7];
#define PORT_A (map_fd[0])
@@ -28,7 +30,7 @@ static const char * const test_names[] = {
"Hash of Hash",
};
-#define NR_TESTS (sizeof(test_names) / sizeof(*test_names))
+#define NR_TESTS ARRAY_SIZE(test_names)
static void check_map_id(int inner_map_fd, int map_in_map_fd, uint32_t key)
{
diff --git a/samples/bpf/tracex5_user.c b/samples/bpf/tracex5_user.c
index e910dc265c31..9d7d79f0d47d 100644
--- a/samples/bpf/tracex5_user.c
+++ b/samples/bpf/tracex5_user.c
@@ -8,6 +8,7 @@
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include "trace_helpers.h"
+#include "bpf_util.h"
#ifdef __mips__
#define MAX_ENTRIES 6000 /* MIPS n64 syscalls start at 5000 */
@@ -24,7 +25,7 @@ static void install_accept_all_seccomp(void)
BPF_STMT(BPF_RET+BPF_K, SECCOMP_RET_ALLOW),
};
struct sock_fprog prog = {
- .len = (unsigned short)(sizeof(filter)/sizeof(filter[0])),
+ .len = (unsigned short)ARRAY_SIZE(filter),
.filter = filter,
};
if (prctl(PR_SET_SECCOMP, 2, &prog))