pasemi_mac: Fix TX ring wrap checking

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The old logic didn't detect full (tx) ring cases properly, causing
overruns and general badness. Clean it up a bit and abstract out the
ring size checks, always making sure to leave 1 slot open.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

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Olof Johansson 2007-08-22 09:13:11 -05:00 • committed by David S. Miller

parent 02df6cfa09

commit 021fa22e01

2 changed files with 15 additions and 12 deletions

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25

drivers/net/pasemi_mac.c

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2

drivers/net/pasemi_mac.h

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