[PATCH bpf-next 3/5] tools: libbpf: add a correctly named define for map iteration

From: Jakub Kicinski <hidden>
Date: 2019-02-27 23:31:15
Also in: bpf
Subsystem: bpf [general] (safe dynamic programs and tools), bpf [library] (libbpf), bpf [selftests] (test runners & infrastructure), bpf [tooling] (bpftool), kernel selftest framework, performance events subsystem, the rest · Maintainers: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Quentin Monnet, Shuah Khan, Shuah Khan, Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds

For historical reasons the helper to loop over maps in an object
is called bpf_map__for_each while it really should be called
bpf_object__for_each_map.  Rename and add a correctly named
define for backward compatibility.

Switch all in-tree users to the correct name (Quentin).

Signed-off-by: Jakub Kicinski <redacted>
Reviewed-by: Quentin Monnet <redacted>
---
 tools/bpf/bpftool/prog.c                       | 4 ++--
 tools/lib/bpf/libbpf.c                         | 8 ++++----
 tools/lib/bpf/libbpf.h                         | 3 ++-
 tools/perf/util/bpf-loader.c                   | 4 ++--
 tools/testing/selftests/bpf/test_libbpf_open.c | 2 +-
 5 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index 0c35dd543d49..8ef80d65a474 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c

@@ -1053,7 +1053,7 @@ static int load_with_options(int argc, char **argv, bool first_prog_only)
 	j = 0;
 	while (j < old_map_fds && map_replace[j].name) {
 		i = 0;
-		bpf_map__for_each(map, obj) {
+		bpf_object__for_each_map(map, obj) {
 			if (!strcmp(bpf_map__name(map), map_replace[j].name)) {
 				map_replace[j].idx = i;
 				break;

@@ -1074,7 +1074,7 @@ static int load_with_options(int argc, char **argv, bool first_prog_only)
 	/* Set ifindex and name reuse */
 	j = 0;
 	idx = 0;
-	bpf_map__for_each(map, obj) {
+	bpf_object__for_each_map(map, obj) {
 		if (!bpf_map__is_offload_neutral(map))
 			bpf_map__set_ifindex(map, ifindex);

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index b38dcbe7460a..f5eb60379c8d 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c

@@ -2100,7 +2100,7 @@ int bpf_object__pin_maps(struct bpf_object *obj, const char *path)
 	if (err)
 		return err;
 
-	bpf_map__for_each(map, obj) {
+	bpf_object__for_each_map(map, obj) {
 		char buf[PATH_MAX];
 		int len;

@@ -2147,7 +2147,7 @@ int bpf_object__unpin_maps(struct bpf_object *obj, const char *path)
 	if (!obj)
 		return -ENOENT;
 
-	bpf_map__for_each(map, obj) {
+	bpf_object__for_each_map(map, obj) {
 		char buf[PATH_MAX];
 		int len;

@@ -2835,7 +2835,7 @@ bpf_object__find_map_by_name(struct bpf_object *obj, const char *name)
 {
 	struct bpf_map *pos;
 
-	bpf_map__for_each(pos, obj) {
+	bpf_object__for_each_map(pos, obj) {
 		if (pos->name && !strcmp(pos->name, name))
 			return pos;
 	}

@@ -2928,7 +2928,7 @@ int bpf_prog_load_xattr(const struct bpf_prog_load_attr *attr,
 			first_prog = prog;
 	}
 
-	bpf_map__for_each(map, obj) {
+	bpf_object__for_each_map(map, obj) {
 		if (!bpf_map__is_offload_neutral(map))
 			map->map_ifindex = attr->ifindex;
 	}

diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
index 6c0168f8bba5..b4652aa1a58a 100644
--- a/tools/lib/bpf/libbpf.h
+++ b/tools/lib/bpf/libbpf.h

@@ -278,10 +278,11 @@ bpf_object__find_map_by_offset(struct bpf_object *obj, size_t offset);
 
 LIBBPF_API struct bpf_map *
 bpf_map__next(struct bpf_map *map, struct bpf_object *obj);
-#define bpf_map__for_each(pos, obj)		\
+#define bpf_object__for_each_map(pos, obj)		\
 	for ((pos) = bpf_map__next(NULL, (obj));	\
 	     (pos) != NULL;				\
 	     (pos) = bpf_map__next((pos), (obj)))
+#define bpf_map__for_each bpf_object__for_each_map
 
 LIBBPF_API struct bpf_map *
 bpf_map__prev(struct bpf_map *map, struct bpf_object *obj);

diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 037d8ff6a634..31b7e5a1453b 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c

@@ -1489,7 +1489,7 @@ apply_obj_config_object(struct bpf_object *obj)
 	struct bpf_map *map;
 	int err;
 
-	bpf_map__for_each(map, obj) {
+	bpf_object__for_each_map(map, obj) {
 		err = apply_obj_config_map(map);
 		if (err)
 			return err;

@@ -1513,7 +1513,7 @@ int bpf__apply_obj_config(void)
 
 #define bpf__for_each_map(pos, obj, objtmp)	\
 	bpf_object__for_each_safe(obj, objtmp)	\
-		bpf_map__for_each(pos, obj)
+		bpf_object__for_each_map(pos, obj)
 
 #define bpf__for_each_map_named(pos, obj, objtmp, name)	\
 	bpf__for_each_map(pos, obj, objtmp) 		\

diff --git a/tools/testing/selftests/bpf/test_libbpf_open.c b/tools/testing/selftests/bpf/test_libbpf_open.c
index 1909ecf4d999..65cbd30704b5 100644
--- a/tools/testing/selftests/bpf/test_libbpf_open.c
+++ b/tools/testing/selftests/bpf/test_libbpf_open.c

@@ -67,7 +67,7 @@ int test_walk_maps(struct bpf_object *obj, bool verbose)
 	struct bpf_map *map;
 	int cnt = 0;
 
-	bpf_map__for_each(map, obj) {
+	bpf_object__for_each_map(map, obj) {
 		cnt++;
 		if (verbose)
 			printf("Map (count:%d) name: %s\n", cnt,

-- 
2.19.2

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