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From: David Miller <davem@davemloft.net>
To: ken_kawasaki@spring.nifty.jp
Cc: netdev@vger.kernel.org
Subject: Re: [kernel,2.6.33-git11] lib8390: use spin_lock_irqsave for locking
Date: Sun, 07 Mar 2010 15:22:30 -0800 (PST)	[thread overview]
Message-ID: <20100307.152230.09914483.davem@davemloft.net> (raw)


This change is not correct.

disable_irq is being intentionally used because the reset
sequence can take a very long time and we don't want to
have cpu interrupts disabled during the entire sequence.

Otherwise slow serial devices will drop characters and
stuff like that.

             reply	other threads:[~2010-03-07 23:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-07 23:22 David Miller [this message]
2010-03-08 12:24 ` [kernel,2.6.33-git11] lib8390: use spin_lock_irqsave for locking Ken Kawasaki
2010-03-08 17:56   ` David Miller

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