linux-kernel - [41/45] [SCSI] libsas: fix NCQ mixing with non-NCQ

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20101119214412.797657205@clark.site>
Date:	Fri, 19 Nov 2010 13:43:21 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	James Bottomley <James.Bottomley@...e.de>
Subject: [41/45] [SCSI] libsas: fix NCQ mixing with non-NCQ

2.6.32-stable review patch.  If anyone has any objections, please let us know.

------------------

From: David Milburn <dmilburn@...hat.com>

commit f0ad30d3d2dc924decc0e10b1ff6dc32525a5d99 upstream.

Some cards (like mvsas) have issue troubles if non-NCQ commands are
mixed with NCQ ones.  Fix this by using the libata default NCQ check
routine which waits until all NCQ commands are complete before issuing
a non-NCQ one.  The impact to cards (like aic94xx) which don't need
this logic should be minimal

Signed-off-by: James Bottomley <James.Bottomley@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/scsi/libsas/sas_ata.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -346,6 +346,7 @@ static int sas_ata_scr_read(struct ata_l
 static struct ata_port_operations sas_sata_ops = {
 	.phy_reset		= sas_ata_phy_reset,
 	.post_internal_cmd	= sas_ata_post_internal,
+	.qc_defer               = ata_std_qc_defer,
 	.qc_prep		= ata_noop_qc_prep,
 	.qc_issue		= sas_ata_qc_issue,
 	.qc_fill_rtf		= sas_ata_qc_fill_rtf,


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/