[PATCH 2/2] talitos: Freescale integrated security engine (SEC) driver

Evgeniy Polyakov johnpol at 2ka.mipt.ru
Sat May 31 07:12:08 EST 2008


On Fri, May 30, 2008 at 03:48:20PM -0500, Kim Phillips (kim.phillips at freescale.com) wrote:
> sorry, by ISR I meant interrupt status registers.  but I can't tell
> where the suspected simultaneous accesses are.  Evgeniy, can you point
> out the register accesses you're talking about?

priv->status is accessed from tasklets, although readonly, but that rises
a red flag... Also callback invocation tasklet drops the lock around
callback, during that time cached status and priv itself (and tail like
in two simultaneous flushes) could change (or not?)

-- 
	Evgeniy Polyakov



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