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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:	Sun, 26 Apr 2015 17:36:04 +0300
From:	Amir Vadai <>
To:	"David S. Miller" <>
Cc:, Or Gerlitz <>,
	Tal Alon <>,
	Ben Hutchings <>,
	Amir Vadai <>
Subject: [PATCH net 0/2] net/ethtool, mlx4_en: RSS hash function setting fixes

Hi Dave,

This small patchset fixes a small issue in the ethtool User/kernel API.

Hash function is represented as an eight bit field, every bit represents a
function.  Currently possible values are: 1 for Toeplitz and 2 for XOR.
This commit changes the representation from bit flags into a value. Because
only one hash function will be used at a time, there is no sense using bit
flags for it.
Since today only 2 functions are supported, and there is no user space ethtool
that supports this feature, we can switch into values without causing any
backward compatibility issues.

After this patchset is applied, I will send the user space patch.

In this occasion I added a missing validation to the hash function value.

This patchset was applied and tested over commit 2ea2f62 ("net: fix crash in build_skb()")

Please push this patchset to stable 3.19.y in which those two issues were introduced.


Amir Vadai (2):
  ethtool: Use values instead of bit flags for RSS hash function
  net/mlx4_en: Prevent setting invalid RSS hash function

 drivers/net/ethernet/mellanox/mlx4/en_ethtool.c | 29 ++++++++++++++-----------
 include/linux/ethtool.h                         |  9 ++------
 net/core/ethtool.c                              |  4 ++--
 3 files changed, 20 insertions(+), 22 deletions(-)


To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists