04 Dec, 2015

1 commit

• c39d0454e   net: Add support for CHANGEUPPER notifier error injection ... Browse Code »

  Since CHANGEUPPER can now fail, add support for it in the newly
  introduced netdev notifier error injection infrastructure.

  Signed-off-by: Ido Schimmel
  Signed-off-by: Jiri Pirko
  Acked-by: Nikolay Aleksandrov
  Signed-off-by: David S. Miller

  Ido Schimmel

  2015-12-04 00:49:23 +0800  

02 Dec, 2015

1 commit

• 02fff96a7   net: add support for netdev notifier error injection ... Browse Code »

  This module allows to insert errors in some of netdevice's notifier
  events. All network drivers use these notifiers to signal various events
  and to check if they are allowed, e.g. PRECHANGEMTU and CHANGEMTU
  afterwards. Until recently I had to run failure tests by injecting
  a custom module, but now this infrastructure makes it trivial to test
  these failure paths. Some of the recent bugs I fixed were found using
  this module.
  Here's an example:
  $ cd /sys/kernel/debug/notifier-error-inject/netdev
  $ echo -22 > actions/NETDEV_CHANGEMTU/error
  $ ip link set eth0 mtu 1024
  RTNETLINK answers: Invalid argument

  CC: Akinobu Mita
  CC: "David S. Miller"
  CC: netdev
  Signed-off-by: Nikolay Aleksandrov
  Signed-off-by: David S. Miller

  Nikolay Aleksandrov

  2015-12-02 04:31:57 +0800