diff options
| author | Bjørn Mork <bjorn@mork.no> | 2015-05-22 13:15:22 +0200 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-06-15 14:26:50 -0400 |
| commit | 842e6e8fe4c5e2fb62abe3a4ba5b213999d39eb3 (patch) | |
| tree | d5a176b46b581e60b047757398d2f8e475444bc6 /net | |
| parent | fd92b07cb49f8d64efbf25bd344ab1855100b3ad (diff) | |
cdc_ncm: Fix tx_bytes statistics
[ Upstream commit 44f6731d8b68fa02f5ed65eaceac41f8c3c9279e ]
The tx_curr_frame_payload field is u32. When we try to calculate a
small negative delta based on it, we end up with a positive integer
close to 2^32 instead. So the tx_bytes pointer increases by about
2^32 for every transmitted frame.
Fix by calculating the delta as a signed long.
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Reported-by: Florian Bruhin <me@the-compiler.org>
Fixes: 7a1e890e2168 ("usbnet: Fix tx_bytes statistic running backward in cdc_ncm")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions