diff options
Diffstat (limited to 'tools/bpf/bpftool/cgroup.c')
| -rw-r--r-- | tools/bpf/bpftool/cgroup.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/tools/bpf/bpftool/cgroup.c b/tools/bpf/bpftool/cgroup.c index 9af426d43299..ec356deb27c9 100644 --- a/tools/bpf/bpftool/cgroup.c +++ b/tools/bpf/bpftool/cgroup.c @@ -2,6 +2,10 @@ // Copyright (C) 2017 Facebook // Author: Roman Gushchin <guro@fb.com> +#undef GCC_VERSION +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif #define _XOPEN_SOURCE 500 #include <errno.h> #include <fcntl.h> @@ -191,7 +195,7 @@ static int show_bpf_prog(int id, enum bpf_attach_type attach_type, if (attach_btf_name) printf(" %-15s", attach_btf_name); else if (info.attach_btf_id) - printf(" attach_btf_obj_id=%d attach_btf_id=%d", + printf(" attach_btf_obj_id=%u attach_btf_id=%u", info.attach_btf_obj_id, info.attach_btf_id); printf("\n"); } @@ -221,7 +225,7 @@ static int cgroup_has_attached_progs(int cgroup_fd) for (i = 0; i < ARRAY_SIZE(cgroup_attach_types); i++) { int count = count_attached_bpf_progs(cgroup_fd, cgroup_attach_types[i]); - if (count < 0) + if (count < 0 && errno != EINVAL) return -1; if (count > 0) { @@ -318,11 +322,11 @@ static int show_bpf_progs(int cgroup_fd, enum bpf_attach_type type, static int do_show(int argc, char **argv) { - enum bpf_attach_type type; int has_attached_progs; const char *path; int cgroup_fd; int ret = -1; + unsigned int i; query_flags = 0; @@ -370,14 +374,14 @@ static int do_show(int argc, char **argv) "AttachFlags", "Name"); btf_vmlinux = libbpf_find_kernel_btf(); - for (type = 0; type < __MAX_BPF_ATTACH_TYPE; type++) { + for (i = 0; i < ARRAY_SIZE(cgroup_attach_types); i++) { /* * Not all attach types may be supported, so it's expected, * that some requests will fail. * If we were able to get the show for at least one * attach type, let's return 0. */ - if (show_bpf_progs(cgroup_fd, type, 0) == 0) + if (show_bpf_progs(cgroup_fd, cgroup_attach_types[i], 0) == 0) ret = 0; } @@ -400,9 +404,9 @@ exit: static int do_show_tree_fn(const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftw) { - enum bpf_attach_type type; int has_attached_progs; int cgroup_fd; + unsigned int i; if (typeflag != FTW_D) return 0; @@ -434,8 +438,8 @@ static int do_show_tree_fn(const char *fpath, const struct stat *sb, } btf_vmlinux = libbpf_find_kernel_btf(); - for (type = 0; type < __MAX_BPF_ATTACH_TYPE; type++) - show_bpf_progs(cgroup_fd, type, ftw->level); + for (i = 0; i < ARRAY_SIZE(cgroup_attach_types); i++) + show_bpf_progs(cgroup_fd, cgroup_attach_types[i], ftw->level); if (errno == EINVAL) /* Last attach type does not support query. |