From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: [git patch] libata fix Date: Fri, 14 Nov 2008 18:56:40 -0500 Message-ID: <20081114235640.GA3624@havoc.gtf.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from havoc.gtf.org ([69.61.125.42]:55801 "EHLO havoc.gtf.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750936AbYKNX4m (ORCPT ); Fri, 14 Nov 2008 18:56:42 -0500 Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Andrew Morton , Linus Torvalds Cc: linux-ide@vger.kernel.org, LKML Please pull from 'upstream-linus' branch of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git upstream-linus to receive the following updates: drivers/ata/libata-sff.c | 13 +++++++++++-- 1 files changed, 11 insertions(+), 2 deletions(-) Tejun Heo (1): libata: improve phantom device detection diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 4b47394..9033d16 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1227,10 +1227,19 @@ fsm_start: /* ATA PIO protocol */ if (unlikely((status & ATA_DRQ) == 0)) { /* handle BSY=0, DRQ=0 as error */ - if (likely(status & (ATA_ERR | ATA_DF))) + if (likely(status & (ATA_ERR | ATA_DF))) { /* device stops HSM for abort/error */ qc->err_mask |= AC_ERR_DEV; - else { + + /* If diagnostic failed and this is + * IDENTIFY, it's likely a phantom + * device. Mark hint. + */ + if (qc->dev->horkage & + ATA_HORKAGE_DIAGNOSTIC) + qc->err_mask |= + AC_ERR_NODEV_HINT; + } else { /* HSM violation. Let EH handle this. * Phantom devices also trigger this * condition. Mark hint.