netdev - a question on packet

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Message-ID: <2014bcab0908112343x68d758e7x132f86b951093e12@mail.gmail.com>
Date:	Wed, 12 Aug 2009 15:43:59 +0900
From:	홍신 shin hong <hongshin@...il.com>
To:	netdev@...r.kernel.org
Subject: a question on packet_sock struct

Hi. I have a question on packet_sock struct
defined in net/packet/af_packet.c of Linux 2.6.30.4.

Is it necessary to hold a packet_sock's bind_lock
before accessing its ifindex field?

According to the definition of packet_sock struct,
it seems that an access to ifindex field should be
synchronized by the bind_lock.

However, according to the its usage in the code,
ifindex accesses are not consistently protected
by the bind_lock.

Thank you

Sincerely
Shin Hong
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