Mon, Sep 30, 2019 at 02:10:03PM CEST, and...@lunn.ch wrote: >On Mon, Sep 30, 2019 at 11:52:21AM +0530, Vasundhara Volam wrote: >> If any of the param or info_get op returns error, dumpit cb is >> skipping to dump remaining params or info_get ops for all the >> drivers. >> >> Fix to not return if any of the param/info_get op returns error >> as not supported and continue to dump remaining information. >> >> v2: Modify the patch to return error, except for params/info_get >> op that return -EOPNOTSUPP as suggested by Andrew Lunn. Also, modify >> commit message to reflect the same. >> >> Cc: Andrew Lunn <and...@lunn.ch> >> Cc: Jiri Pirko <j...@mellanox.com> >> Cc: Michael Chan <michael.c...@broadcom.com> >> Signed-off-by: Vasundhara Volam <vasundhara-v.vo...@broadcom.com> >> --- >> net/core/devlink.c | 6 +++--- >> 1 file changed, 3 insertions(+), 3 deletions(-) >> >> diff --git a/net/core/devlink.c b/net/core/devlink.c >> index e48680e..f80151e 100644 >> --- a/net/core/devlink.c >> +++ b/net/core/devlink.c >> @@ -3172,7 +3172,7 @@ static int devlink_nl_cmd_param_get_dumpit(struct >> sk_buff *msg, >> NETLINK_CB(cb->skb).portid, >> cb->nlh->nlmsg_seq, >> NLM_F_MULTI); >> - if (err) { >> + if (err && err != -EOPNOTSUPP) { >> mutex_unlock(&devlink->lock); >> goto out; >> } > >and out: is > >out: > mutex_unlock(&devlink_mutex); > > cb->args[0] = idx; > return msg->len; >} > >Jiri: Is the intention really to throw away the error? > >Looking at the rest of devlink, all the other _get_dumpit() functions, >except health_reporter_dump_get_dumpit(), do discard any errors.
You are correct. The -EMSGSIZE dump errors should not be propagaged out and -EOPNOTSUPP, but the rest should. I'll look into it. Thanks! > >As for this patch > >Reviewed-by: Andrew Lunn <and...@lunn.ch> > > Andrew