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bpf: fix warning from basename()

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The function basename() expects a mutable character string,
which now causes a warning:

bpf_legacy.c: In function ‘bpf_load_common’:
bpf_legacy.c:975:38: warning: passing argument 1 of ‘__xpg_basename’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  975 |                          basename(cfg->object), cfg->mode == EBPF_PINNED ?
      |                                   ~~~^~~~~~~~
In file included from bpf_legacy.c:21:
/usr/include/libgen.h:34:36: note: expected ‘char *’ but argument is of type ‘const char *’
   34 | extern char *__xpg_basename (char *__path) __THROW;

Fixes: f20ff2f195 ("bpf: keep parsed program mode in struct bpf_cfg_in")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Stephen Hemminger
2024-01-27 13:58:14 -08:00
parent 0c3400cc8f
commit 69e3b2fadc
1 changed files with 2 additions and 2 deletions
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4
lib/bpf_legacy.c
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@@ -972,8 +972,8 @@ int bpf_load_common(struct bpf_cfg_in *cfg, const struct bpf_cfg_ops *ops,
ops->cbpf_cb(nl, cfg->opcodes, cfg->n_opcodes);
if (cfg->mode == EBPF_OBJECT || cfg->mode == EBPF_PINNED) {
snprintf(annotation, sizeof(annotation), "%s:[%s]",
basename(cfg->object), cfg->mode == EBPF_PINNED ?
"*fsobj" : cfg->section);
basename(strdupa(cfg->object)),
cfg->mode == EBPF_PINNED ? "*fsobj" : cfg->section);
ops->ebpf_cb(nl, cfg->prog_fd, annotation);
}