On Mon, 27 Jun 2011 12:10:48 +0530
Sathya Perla [off-list ref] wrote:

Problem initially reproted and fixed by Eric Dumazet [off-list ref]

netdev_stats_update() resets netdev->stats and then accumulates stats from
various rings. This is wrong as stats readers can sometimes catch zero values.
Use temporary variables instead for accumulating per-ring values.

Signed-off-by: Sathya Perla <redacted>

Should also use u64_stats_sync to ensure correct rollover or 32 bit SMP
platform.