| Message ID | 1490219962-32587-2-git-send-email-dsa@cumulusnetworks.com |
|---|---|
| State | Superseded, archived |
| Delegated to: | stephen hemminger |
| Headers | show |
diff --git a/include/libnetlink.h b/include/libnetlink.h index bd0267dfcc02..c43ab0a2d9d9 100644 --- a/include/libnetlink.h +++ b/include/libnetlink.h @@ -21,6 +21,7 @@ struct rtnl_handle { int proto; FILE *dump_fp; #define RTNL_HANDLE_F_LISTEN_ALL_NSID 0x01 +#define RTNL_HANDLE_F_SUPPRESS_NLERR 0x02 int flags; }; diff --git a/lib/libnetlink.c b/lib/libnetlink.c index 9303b6686e2c..5b75b2db4e0b 100644 --- a/lib/libnetlink.c +++ b/lib/libnetlink.c @@ -299,7 +299,8 @@ static void rtnl_dump_error(const struct rtnl_handle *rth, errno == EOPNOTSUPP)) return; - perror("RTNETLINK answers"); + if (!(rth->flags & RTNL_HANDLE_F_SUPPRESS_NLERR)) + perror("RTNETLINK answers"); } }
Allow callers of the dump API to handle nlmsg errors (e.g., an unsupported feature). Setting RTNL_HANDLE_F_SUPPRESS_NLERR in the rtnl_handle avoids unnecessary messages to the users in some case. For example, RTNETLINK answers: Operation not supported when probing for support of a new feature. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> --- include/libnetlink.h | 1 + lib/libnetlink.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-)