[PATCH net-next 2/2] Revert "devlink: Remove not-executed trap policer notifications"
From: Leon Romanovsky <leon@kernel.org>
Date: 2021-10-26 19:41:19
Also in:
lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Leon Romanovsky <leonro@nvidia.com> This reverts commit 22849b5ea5952d853547cc5e0651f34a246b2a4f as it revealed that mlxsw and netdevsim (copy/paste from mlxsw) reregisters devlink objects during another devlink user triggered command. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> --- net/core/devlink.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 4dac53c77842..0de679c4313c 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c@@ -11180,7 +11180,8 @@ devlink_trap_policer_notify(struct devlink *devlink, WARN_ON_ONCE(cmd != DEVLINK_CMD_TRAP_POLICER_NEW && cmd != DEVLINK_CMD_TRAP_POLICER_DEL); - ASSERT_DEVLINK_REGISTERED(devlink); + if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED)) + return; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg)
@@ -11222,6 +11223,9 @@ devlink_trap_policer_register(struct devlink *devlink, } list_add_tail(&policer_item->list, &devlink->trap_policer_list); + devlink_trap_policer_notify(devlink, policer_item, + DEVLINK_CMD_TRAP_POLICER_NEW); + return 0; err_policer_init:
@@ -11239,6 +11243,8 @@ devlink_trap_policer_unregister(struct devlink *devlink, if (WARN_ON_ONCE(!policer_item)) return; + devlink_trap_policer_notify(devlink, policer_item, + DEVLINK_CMD_TRAP_POLICER_DEL); list_del(&policer_item->list); if (devlink->ops->trap_policer_fini) devlink->ops->trap_policer_fini(devlink, policer);
@@ -11260,8 +11266,6 @@ devlink_trap_policers_register(struct devlink *devlink, { int i, err; - ASSERT_DEVLINK_NOT_REGISTERED(devlink); - mutex_lock(&devlink->lock); for (i = 0; i < policers_count; i++) { const struct devlink_trap_policer *policer = &policers[i];
@@ -11303,8 +11307,6 @@ devlink_trap_policers_unregister(struct devlink *devlink, { int i; - ASSERT_DEVLINK_NOT_REGISTERED(devlink); - mutex_lock(&devlink->lock); for (i = policers_count - 1; i >= 0; i--) devlink_trap_policer_unregister(devlink, &policers[i]);
--
2.31.1