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net: sched: Clarify error message when qdisc kind is unknown

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[ Upstream commit 973bf8fdd12f0e70ea351c018e68edd377a836d1 ]

When adding a tc rule with a qdisc kind that is not supported or not
compiled into the kernel, the kernel emits the following error: "Error:
Specified qdisc not found.". Found via tdc testing when ETS qdisc was not
compiled in and it was not obvious right away what the message meant
without looking at the kernel code.

Change the error message to be more explicit and say the qdisc kind is
unknown.

Signed-off-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Victor Nogueira 2022-01-18 14:19:09 -03:00 committed by Greg Kroah-Hartman
parent 978264fbc5
commit 9babdef288
1 changed files with 1 additions and 1 deletions
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net/sched/sch_api.c
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@ -1195,7 +1195,7 @@ static struct Qdisc *qdisc_create(struct net_device *dev,
err = -ENOENT;
if (!ops) {
NL_SET_ERR_MSG(extack, "Specified qdisc not found");
NL_SET_ERR_MSG(extack, "Specified qdisc kind is unknown");
goto err_out;
}