tree f35566dd3ddbda7cc84fc8a03aa3aebeea7dc746
parent f18b95c3e2ab0f75b23a5aabab0bc8f99bd6bbf3
author Andy Fleming <afleming@freescale.com> 1145569469 -0500
committer Jeff Garzik <jeff@garzik.org> 1145570106 -0400

[PATCH] Fix locking in gianfar

This patch fixes several bugs in the gianfar driver, including a major one
where spinlocks were horribly broken:

* Split gianfar locks into two types: TX and RX
* Made it so gfar_start() now clears RHALT
* Fixed a bug where calling gfar_start_xmit() with interrupts off would
corrupt the interrupt state
* Fixed a bug where a frame could potentially arrive, and never be handled
(if no more frames arrived
* Fixed a bug where the rx_work_limit would never be observed by the rx
completion code
* Fixed a bug where the interrupt handlers were not actually protected by
their spinlocks

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>