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-rw-r--r--tools/bpf/bpftool/Documentation/bpftool.rst4
-rw-r--r--tools/bpf/bpftool/bash-completion/bpftool2
-rw-r--r--tools/bpf/bpftool/main.c7
-rw-r--r--tools/bpf/bpftool/main.h3
-rw-r--r--tools/bpf/bpftool/prog.c2
5 files changed, 14 insertions, 4 deletions
diff --git a/tools/bpf/bpftool/Documentation/bpftool.rst b/tools/bpf/bpftool/Documentation/bpftool.rst
index 25c08728ca80..65488317fefa 100644
--- a/tools/bpf/bpftool/Documentation/bpftool.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool.rst
@@ -57,6 +57,10 @@ OPTIONS
-p, --pretty
Generate human-readable JSON output. Implies **-j**.
+ -m, --mapcompat
+ Allow loading maps with unknown map definitions.
+
+
SEE ALSO
========
**bpftool-map**\ (8), **bpftool-prog**\ (8), **bpftool-cgroup**\ (8)
diff --git a/tools/bpf/bpftool/bash-completion/bpftool b/tools/bpf/bpftool/bash-completion/bpftool
index 082651931824..ac85207cba8d 100644
--- a/tools/bpf/bpftool/bash-completion/bpftool
+++ b/tools/bpf/bpftool/bash-completion/bpftool
@@ -184,7 +184,7 @@ _bpftool()
# Deal with options
if [[ ${words[cword]} == -* ]]; then
- local c='--version --json --pretty --bpffs'
+ local c='--version --json --pretty --bpffs --mapcompat'
COMPREPLY=( $( compgen -W "$c" -- "$cur" ) )
return 0
fi
diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c
index 79dc3f193547..828dde30e9ec 100644
--- a/tools/bpf/bpftool/main.c
+++ b/tools/bpf/bpftool/main.c
@@ -55,6 +55,7 @@ json_writer_t *json_wtr;
bool pretty_output;
bool json_output;
bool show_pinned;
+int bpf_flags;
struct pinned_obj_table prog_table;
struct pinned_obj_table map_table;
@@ -341,6 +342,7 @@ int main(int argc, char **argv)
{ "pretty", no_argument, NULL, 'p' },
{ "version", no_argument, NULL, 'V' },
{ "bpffs", no_argument, NULL, 'f' },
+ { "mapcompat", no_argument, NULL, 'm' },
{ 0 }
};
int opt, ret;
@@ -355,7 +357,7 @@ int main(int argc, char **argv)
hash_init(map_table.table);
opterr = 0;
- while ((opt = getopt_long(argc, argv, "Vhpjf",
+ while ((opt = getopt_long(argc, argv, "Vhpjfm",
options, NULL)) >= 0) {
switch (opt) {
case 'V':
@@ -379,6 +381,9 @@ int main(int argc, char **argv)
case 'f':
show_pinned = true;
break;
+ case 'm':
+ bpf_flags = MAPS_RELAX_COMPAT;
+ break;
default:
p_err("unrecognized option '%s'", argv[optind - 1]);
if (json_output)
diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h
index 40492cdc4e53..91fd697303cb 100644
--- a/tools/bpf/bpftool/main.h
+++ b/tools/bpf/bpftool/main.h
@@ -74,7 +74,7 @@
#define HELP_SPEC_PROGRAM \
"PROG := { id PROG_ID | pinned FILE | tag PROG_TAG }"
#define HELP_SPEC_OPTIONS \
- "OPTIONS := { {-j|--json} [{-p|--pretty}] | {-f|--bpffs} }"
+ "OPTIONS := { {-j|--json} [{-p|--pretty}] | {-f|--bpffs} | {-m|--mapcompat}"
#define HELP_SPEC_MAP \
"MAP := { id MAP_ID | pinned FILE }"
@@ -89,6 +89,7 @@ extern const char *bin_name;
extern json_writer_t *json_wtr;
extern bool json_output;
extern bool show_pinned;
+extern int bpf_flags;
extern struct pinned_obj_table prog_table;
extern struct pinned_obj_table map_table;
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index 99ab42c56724..335028968dfb 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -908,7 +908,7 @@ static int do_load(int argc, char **argv)
}
}
- obj = bpf_object__open_xattr(&attr);
+ obj = __bpf_object__open_xattr(&attr, bpf_flags);
if (IS_ERR_OR_NULL(obj)) {
p_err("failed to open object file");
goto err_free_reuse_maps;