linux-kernel - Re: [2.6 patch] drivers/scsi/scsi_error.c should #include "scsi_transport

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Date:	Wed, 29 Nov 2006 07:32:10 -0700
From:	Matthew Wilcox <matthew@....cx>
To:	James Smart <James.Smart@...lex.Com>
Cc:	Adrian Bunk <bunk@...sta.de>, James.Bottomley@...elEye.com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [2.6 patch] drivers/scsi/scsi_error.c should #include "scsi_transport_api.h"

On Wed, Nov 29, 2006 at 09:13:35AM -0500, James Smart wrote:
> would it only go in include/scsi if it intends to be an exported
> api for LLDD's and/or user apps ?  and stay in drivers/scsi if its
> an internal api within the scsi subsystem itself ?

It isn't clear to me that's the intended use of include/scsi.  If it is,
it's already being violated, eg by

$ find * -type f |xargs grep scsi_host_scan_allowed
drivers/scsi/scsi_scan.c:       if (scsi_host_scan_allowed(shost))
drivers/scsi/scsi_scan.c:       if (scsi_host_scan_allowed(shost))
drivers/scsi/scsi_scan.c:       if (scsi_host_scan_allowed(shost)) {
drivers/scsi/scsi_scan.c:       if (!scsi_host_scan_allowed(shost))
include/scsi/scsi_host.h: * scsi_host_scan_allowed - Is scanning of this
host allowed
include/scsi/scsi_host.h:static inline int scsi_host_scan_allowed(struct
Scsi_Host *shost)

(a good candidate to be moved to scsi_scan.c, in fact!)

scsi_host_state_name, scsi_normalize_sense, scsi_reset_provider,
scsi_test_unit_ready, scsi_put_command are all in similar usage to
scsi_schedule_eh.  There's probably more, I just picked some likely
looking candidates.
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