Re: [PATCH] use mmiowb in qla1280.c

From: James Bottomley
Date: Sun Oct 24 2004 - 11:27:25 EST


On Thu, 2004-10-21 at 19:17, Jesse Barnes wrote:
> There are a few spots in qla1280.c that don't need a full PCI write flush to
> the device, but rather a simple write ordering guarantee. This patch changes
> some of the PIO reads that cause write flushes into mmiowb calls instead,
> which is a lighter weight way of ensuring ordering.
>
> Jes and James, can you ack this and/or push it in via the SCSI BK tree?

This doesn't seem to work:

CC [M] drivers/scsi/qla1280.o
drivers/scsi/qla1280.c: In function `qla1280_64bit_start_scsi':
drivers/scsi/qla1280.c:3404: warning: implicit declaration of function
`mmiowb'

MODPOST
*** Warning: "mmiowb" [drivers/scsi/qla1280.ko] undefined!

James


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