netdev - r8169: changed rx buffer alignment requirement

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:   Sun, 21 Oct 2018 11:02:58 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: r8169: changed rx buffer alignment requirement

Hi Eric,

when working on the r8169 driver I came across an old patch from you:
6f0333b8fde4 ("r8169: use 50% less ram for RX ring")

As part of this patch the alignment requirement for rx buffers was
silently changed from 8 to 16 bytes. Can you remember (well, after
eight years) why you did this? In the chip datasheet I find only
8 bytes mentioned as requirement.

Regards,
Heiner