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# SPDX-License-Identifier: GPL-2.0-only
config NET_DEV_REFCNT_TRACKER
bool "Enable net device refcount tracking"
depends on DEBUG_KERNEL && STACKTRACE_SUPPORT && NET
select REF_TRACKER
default n
help
Enable debugging feature to track device references.
This adds memory and cpu costs.
config NET_NS_REFCNT_TRACKER
bool "Enable networking namespace refcount tracking"
depends on DEBUG_KERNEL && STACKTRACE_SUPPORT && NET
select REF_TRACKER
default n
help
Enable debugging feature to track netns references.
This adds memory and cpu costs.
config DEBUG_NET
bool "Add generic networking debug"
depends on DEBUG_KERNEL && NET
help
Enable extra sanity checks in networking.
This is mostly used by fuzzers, but is safe to select.
config DEBUG_NET_SMALL_RTNL
bool "Add extra per-netns mutex inside RTNL"
depends on DEBUG_KERNEL && NET && LOCK_DEBUGGING_SUPPORT
select PROVE_LOCKING
default n
help
rtnl_lock() is being replaced with rtnl_net_lock() that
acquires the global RTNL and a small per-netns RTNL mutex.
During the conversion, rtnl_net_lock() just adds an extra
mutex in every RTNL scope and slows down the operations.
Once the conversion completes, rtnl_lock() will be removed
and rtnetlink will gain per-netns scalability.
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