6.13-stable review patch. If anyone has any objections, please let me know.
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From: Ian Rogers irogers@google.com
[ Upstream commit 307ef667e94530c2f2f77797bfe9ea85c22bec7d ]
When statically linking symbols can be replaced with those from other statically linked libraries depending on the link order and the hoped for "multiple definition" error may not appear. To avoid conflicts it is good practice to namespace symbols, this change renames errstr to libbpf_errstr. To avoid churn a #define is used to turn use of errstr(err) to libbpf_errstr(err).
Fixes: 1633a83bf993 ("libbpf: Introduce errstr() for stringifying errno") Signed-off-by: Ian Rogers irogers@google.com Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20250320222439.1350187-1-irogers@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/str_error.c | 2 +- tools/lib/bpf/str_error.h | 7 +++++-- 2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/tools/lib/bpf/str_error.c b/tools/lib/bpf/str_error.c index 8743049e32b7d..9a541762f54c0 100644 --- a/tools/lib/bpf/str_error.c +++ b/tools/lib/bpf/str_error.c @@ -36,7 +36,7 @@ char *libbpf_strerror_r(int err, char *dst, int len) return dst; }
-const char *errstr(int err) +const char *libbpf_errstr(int err) { static __thread char buf[12];
diff --git a/tools/lib/bpf/str_error.h b/tools/lib/bpf/str_error.h index 66ffebde0684a..53e7fbffc13ec 100644 --- a/tools/lib/bpf/str_error.h +++ b/tools/lib/bpf/str_error.h @@ -7,10 +7,13 @@ char *libbpf_strerror_r(int err, char *dst, int len);
/** - * @brief **errstr()** returns string corresponding to numeric errno + * @brief **libbpf_errstr()** returns string corresponding to numeric errno * @param err negative numeric errno * @return pointer to string representation of the errno, that is invalidated * upon the next call. */ -const char *errstr(int err); +const char *libbpf_errstr(int err); + +#define errstr(err) libbpf_errstr(err) + #endif /* __LIBBPF_STR_ERROR_H */