From: David S. Miller <davem@davemloft.net>
Date: Sat, 25 Jun 2005 03:17:10 +0000 (-0700)
Subject: [TG3]: Fix missing memory barriers and SD_STATUS_UPDATED bit clearing.
X-Git-Tag: v2.6.13-rc1~68^2~245
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd024c8baf9756759c57f0a19be639da8d3d4f8c;p=pandora-kernel.git

[TG3]: Fix missing memory barriers and SD_STATUS_UPDATED bit clearing.

There must be a rmb() between reading the status block tag
and calling tg3_has_work().  This was missing in tg3_mis()
and tg3_interrupt_tagged().  tg3_poll() got it right.

Also, SD_STATUS_UPDATED must be cleared in the status block
right before we call tg3_has_work().  Only tg3_poll() got this
wrong.

Based upon patches and commentary from Grant Grundler and
Michael Chan.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

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