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| author | Quentin Monnet <quentin@isovalent.com> | 2020-06-23 22:36:00 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-06-24 15:46:28 +0200 |
| commit | 54b66c2255fadc8d78e88b5ffd99b19f7f754f5a (patch) | |
| tree | cee4ef5c4efadc013a4fae8e1c981f4034c92960 /tools/bpf | |
| parent | 4e608675e790b3f61b98bc38b3e8a38613b480ab (diff) | |
| download | linux-54b66c2255fadc8d78e88b5ffd99b19f7f754f5a.tar.bz2 | |
tools, bpftool: Fix variable shadowing in emit_obj_refs_json()
Building bpftool yields the following complaint:
pids.c: In function 'emit_obj_refs_json':
pids.c:175:80: warning: declaration of 'json_wtr' shadows a global declaration [-Wshadow]
175 | void emit_obj_refs_json(struct obj_refs_table *table, __u32 id, json_writer_t *json_wtr)
| ~~~~~~~~~~~~~~~^~~~~~~~
In file included from pids.c:11:
main.h:141:23: note: shadowed declaration is here
141 | extern json_writer_t *json_wtr;
| ^~~~~~~~
Let's rename the variable.
v2:
- Rename the variable instead of calling the global json_wtr directly.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200623213600.16643-1-quentin@isovalent.com
Diffstat (limited to 'tools/bpf')
| -rw-r--r-- | tools/bpf/bpftool/pids.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/tools/bpf/bpftool/pids.c b/tools/bpf/bpftool/pids.c index 3474a91743ff..2709be4de2b1 100644 --- a/tools/bpf/bpftool/pids.c +++ b/tools/bpf/bpftool/pids.c @@ -172,7 +172,8 @@ void delete_obj_refs_table(struct obj_refs_table *table) } } -void emit_obj_refs_json(struct obj_refs_table *table, __u32 id, json_writer_t *json_wtr) +void emit_obj_refs_json(struct obj_refs_table *table, __u32 id, + json_writer_t *json_writer) { struct obj_refs *refs; struct obj_ref *ref; @@ -187,16 +188,16 @@ void emit_obj_refs_json(struct obj_refs_table *table, __u32 id, json_writer_t *j if (refs->ref_cnt == 0) break; - jsonw_name(json_wtr, "pids"); - jsonw_start_array(json_wtr); + jsonw_name(json_writer, "pids"); + jsonw_start_array(json_writer); for (i = 0; i < refs->ref_cnt; i++) { ref = &refs->refs[i]; - jsonw_start_object(json_wtr); - jsonw_int_field(json_wtr, "pid", ref->pid); - jsonw_string_field(json_wtr, "comm", ref->comm); - jsonw_end_object(json_wtr); + jsonw_start_object(json_writer); + jsonw_int_field(json_writer, "pid", ref->pid); + jsonw_string_field(json_writer, "comm", ref->comm); + jsonw_end_object(json_writer); } - jsonw_end_array(json_wtr); + jsonw_end_array(json_writer); break; } } |