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net: devlink: Remove overzealous WARN_ON with snapshots

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It is possible to trigger this WARN_ON from user space by triggering a
devlink snapshot with an ID which already exists. We don't need both
-EEXISTS being reported and spamming the kernel log.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2020-08-16 21:26:38 +02:00 committed by David S. Miller
parent c530189905
commit bd71ea6067
1 changed files with 1 additions and 1 deletions
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net/core/devlink.c
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@ -4063,7 +4063,7 @@ static int __devlink_snapshot_id_insert(struct devlink *devlink, u32 id)
{ {
lockdep_assert_held(&devlink->lock); lockdep_assert_held(&devlink->lock);
if (WARN_ON(xa_load(&devlink->snapshot_ids, id))) if (xa_load(&devlink->snapshot_ids, id))
return -EEXIST; return -EEXIST;
return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(0), return xa_err(xa_store(&devlink->snapshot_ids, id, xa_mk_value(0),