linux-kernel - Re: [PATCH 1/3] libata: pass host flags into __ata_pci_sff_init

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Date:	Thu, 18 Feb 2010 23:41:02 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] libata: pass host flags into __ata_pci_sff_init_one() helper

On Thursday 18 February 2010 10:44:48 pm Alan Cox wrote:
> On Thu, 18 Feb 2010 19:59:22 +0100
> Bartlomiej Zolnierkiewicz <bzolnier@...il.com> wrote:
> 
> > From: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> > Subject: [PATCH] libata: pass host flags into __ata_pci_sff_init_one() helper
> > 
> > This was orginally proposed by Alan Cox but as a change
> > for ata_pci_sff_init_one() helper function instead of
> > __ata_pci_sff_init_one() one which casues needless churn
> > to all host drivers and accidentally breakes few host
> > drivers which are still on their way upstream.
> > 
> > Allows parallel scan and the like to be set without
> > having to stop using the existing full helper functions.
> 
> NAK - __ is for internal symbol names.

A NAK for an atang specific patch?  :)

- Please read DISCLAIMER in the first mail (it is there for a valid reasons).

- The patch is for atang tree and said __ change happened _months_ ago as
   a part of (very much related) ->init_host work which is not 'upstream'.

- __ has been also used for exactly such purpose in the kernel, i.e.:

$ grep EXPORT_SYMBOL drivers/pci/*c|grep __
drivers/pci/htirq.c:EXPORT_SYMBOL(__ht_create_irq);
drivers/pci/pci.c:EXPORT_SYMBOL_GPL(__pci_complete_power_transition);
drivers/pci/pci.c:EXPORT_SYMBOL_GPL(__pci_reset_function);
drivers/pci/pci-driver.c:EXPORT_SYMBOL(__pci_register_driver);

Just see commit 863b18f introducing __pci_register_driver
(please notice that the change was suggested by Al Viro!)..

--
Bartlomiej Zolnierkiewicz
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