linux-kernel - Re: [PATCH v3 4/4] scsi: provide UAPI version of scsi/sg.h and scsi/scsi

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Date:	Mon, 28 Sep 2015 08:49:09 +0200
From:	Douglas Gilbert <dgilbert@...erlog.com>
To:	Paolo Bonzini <pbonzini@...hat.com>, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org
Cc:	bart.vanassche@...disk.com,
	James Bottomley <jbottomley@...allels.com>,
	Christoph Hellwig <hch@....de>, linux-scsi@...r.kernel.org
Subject: Re: [PATCH v3 4/4] scsi: provide UAPI version of scsi/sg.h and
 scsi/scsi_ioctl.h

On 15-09-25 11:27 AM, Paolo Bonzini wrote:
> Provide a UAPI version of the header in the kernel, making it easier
> for interested projects to use an up-to-date version of the header.
>
> The new headers are placed under uapi/linux/ so as not to conflict
> with the glibc-provided headers in /usr/include/scsi.
>
> /dev/sgN default values are implementation aspects, and are moved to
> drivers/scsi/sg.c instead (together with e.g. SG_ALLOW_DIO_DEF).
> However, SG_SCATTER_SZ is used by Wine so it is kept in linux/sg.h
> SG_MAX_QUEUE could also be useful.
>
> struct scsi_ioctl_command and struct scsi_idlun used to be under
> "#ifdef __KERNEL__", but they are actually useful for userspace as
> well.  Add them to the new header.
>
> Cc: James Bottomley <jbottomley@...allels.com>
> Cc: Christoph Hellwig <hch@....de>
> Cc: linux-scsi@...r.kernel.org
> Cc: Bart Van Assche <bart.vanassche@...disk.com>
> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>

Acked-by: Douglas Gilbert <dgilbert@...erlog.com>
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