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Commit 9b3dc0a1 authored by Dominik Heidler's avatar Dominik Heidler Committed by David S. Miller
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l2tp: cast l2tp traffic counter to unsigned



This fixes a counter problem on 32bit systems:
When the rx_bytes counter reached 2 GiB, it jumpd to (2^64 Bytes - 2GiB) Bytes.

rtnl_link_stats64 has __u64 type and atomic_long_read returns
atomic_long_t which is signed. Due to the conversation
we get an incorrect value on 32bit systems if the MSB of
the atomic_long_t value is set.

CC: Tom Parkin <tparkin@katalix.com>
Fixes: 7b7c0719 ("l2tp: avoid deadlock in l2tp stats update")
Signed-off-by: default avatarDominik Heidler <dheidler@suse.de>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d8dba51d
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