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authorTaehee Yoo <ap420073@gmail.com>2020-02-28 21:01:56 +0300
committerDavid S. Miller <davem@davemloft.net>2020-03-01 08:37:03 +0300
commit81390d0c4e56ac7752c97d7e8209357673d1a8ab (patch)
treebaae0ea0a9de2b2d67f72a7c2da94f0fcd02eeca /tools/perf/scripts/python/export-to-sqlite.py
parent4b793acdca0050739b99ace6a8b9e7f717f57c6b (diff)
downloadlinux-81390d0c4e56ac7752c97d7e8209357673d1a8ab.tar.xz
hsr: remove unnecessary rcu_read_lock() in hsr module
In order to access the port list, the hsr_port_get_hsr() is used. And this is protected by RTNL and RCU. The hsr_fill_info(), hsr_check_carrier(), hsr_dev_open() and hsr_get_max_mtu() are protected by RTNL. So, rcu_read_lock() in these functions are not necessary. The hsr_handle_frame() also uses rcu_read_lock() but this function is called by packet path. It's already protected by RCU. So, the rcu_read_lock() in hsr_handle_frame() can be removed. Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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