From: Florian Lohoff <flo@rfc822.org>
To: linux-scsi@vger.kernel.org
Subject: spinlock sgiwd33 vs spinlock in wd33c93
Date: Sat, 25 Sep 2004 14:37:33 +0200 [thread overview]
Message-ID: <20040925123733.GC2630@paradigm.rfc822.org> (raw)
Hi,
by staring at the code i had the suspicion that the spinlock in the
users of the generic wd33c93.c might be obsolete or is my brain too
twisted.
93
94 spin_lock_irqsave(host->host_lock, flags);
95 wd33c93_intr(host);
96 spin_unlock_irqrestore(host->host_lock, flags);
97
Whereas the wd33c93_intr itself does:
775 asr = read_aux_stat(regs);
776 if (!(asr & ASR_INT) || (asr & ASR_BSY))
777 return;
778
779 spin_lock_irqsave(&hostdata->lock, flags);
780
It seems all users (gvp, a2091, a3000, sgiwd) do have it except mvme147
Flo
--
Florian Lohoff flo@rfc822.org +49-171-2280134
Heisenberg may have been here.
reply other threads:[~2004-09-25 12:37 UTC|newest]
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