linux-kernel - Re: [PATCH] [SCSI] arcmsr: &/| confusion in arcmsr_build

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Date:	Sat, 01 Jan 2011 19:40:23 +0100
From:	roel kluin <roel.kluin@...il.com>
To:	Matthew Wilcox <matthew@....cx>, just.for.lkml@...glemail.com
CC:	nick.cheng@...ca.com.tw, Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, James.Bottomley@...e.de,
	linux-scsi@...r.kernel.org
Subject: Re: [PATCH] [SCSI] arcmsr: &/| confusion in arcmsr_build_ccb()

Make sure no other command which does a write, such as UNMAP and WRITE_32, is missed.

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
 drivers/scsi/arcmsr/arcmsr_hba.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

If you agree this is the right fix, please ack.

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 17e3df4..a5acedc 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1171,7 +1171,7 @@ static int arcmsr_build_ccb(struct AdapterControlBlock *acb,
 	arcmsr_cdb->msgPages = arccdbsize/0x100 + (arccdbsize % 0x100 ? 1 : 0);
 	if ( arccdbsize > 256)
 		arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_SGL_BSIZE;
-	if (pcmd->cmnd[0]|WRITE_6 || pcmd->cmnd[0]|WRITE_10 || pcmd->cmnd[0]|WRITE_12 ){
+	if (pcmd->sc_data_direction == DMA_TO_DEVICE)
 		arcmsr_cdb->Flags |= ARCMSR_CDB_FLAG_WRITE;
 	}
 	ccb->arc_cdb_size = arccdbsize;
--
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