tools: bpftool: make syntax for program map update explicit in man page

Specify in the documentation that when using bpftool to update a map of
type BPF_MAP_TYPE_PROG_ARRAY, the syntax for the program used as a value
should use the "id|tag|pinned" keywords convention, as used with
"bpftool prog" commands.

Fixes: ff69c21a85a4 ("tools: bpftool: add documentation")
Signed-off-by: Quentin Monnet <[email protected]>
Reviewed-by: Jakub Kicinski <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>

diff --git a/tools/bpf/bpftool/Documentation/bpftool-map.rst b/tools/bpf/bpftool/Documentation/bpftool-map.rst
index 0ab32b312aec0d7ed876e6b3d63b4f4dc8349b92..457e868bd32f427a3469fcec79a347e0fd58a633 100644 (file)
--- a/tools/bpf/bpftool/Documentation/bpftool-map.rst
+++ b/tools/bpf/bpftool/Documentation/bpftool-map.rst
@@ -31,7 +31,8 @@ MAP COMMANDS
 |      **bpftool** **map help**
 |
 |      *MAP* := { **id** *MAP_ID* | **pinned** *FILE* }
-|      *VALUE* := { *BYTES* | *MAP* | *PROGRAM* }
+|      *PROG* := { **id** *PROG_ID* | **pinned** *FILE* | **tag** *PROG_TAG* }
+|      *VALUE* := { *BYTES* | *MAP* | *PROG* }
 |      *UPDATE_FLAGS* := { **any** | **exist** | **noexist** }
 
 DESCRIPTION