linux-kernel - Re: [linux-pm] [PATCH 2/2 -stable] libata: add missing CONFIG

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Date:	Sat, 03 Mar 2007 11:18:14 +1100
From:	Nigel Cunningham <nigel@...el.suspend2.net>
To:	Tejun Heo <htejun@...il.com>
Cc:	Guennadi Liakhovetski <g.liakhovetski@....de>,
	linux-ide@...r.kernel.org, jgarzik@...ox.com,
	linux-pm@...ts.osdl.org, stable@...nel.org,
	Alan <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org
Subject: Re: [linux-pm] [PATCH 2/2 -stable] libata: add missing CONFIG_PM
	in LLDs

Hi.

On Fri, 2007-03-02 at 17:46 +0900, Tejun Heo wrote:
> Add missing #ifdef CONFIG_PM conditionals around all PM related parts
> in libata LLDs.
> 
> Signed-off-by: Tejun Heo <htejun@...il.com>
> ---
>  drivers/ata/ahci.c              |   14 ++++++++++++++
>  drivers/ata/ata_generic.c       |    4 ++++
>  drivers/ata/ata_piix.c          |    4 ++++
>  drivers/ata/pata_ali.c          |    6 ++++++
>  drivers/ata/pata_amd.c          |    6 ++++++
>  drivers/ata/pata_atiixp.c       |    4 ++++
>  drivers/ata/pata_cmd64x.c       |    6 ++++++
>  drivers/ata/pata_cs5520.c       |    7 +++++++
>  drivers/ata/pata_cs5530.c       |    6 ++++++
>  drivers/ata/pata_cs5535.c       |    4 ++++
>  drivers/ata/pata_cypress.c      |    4 ++++
>  drivers/ata/pata_efar.c         |    4 ++++
>  drivers/ata/pata_hpt366.c       |    7 ++++++-
>  drivers/ata/pata_hpt3x3.c       |    6 ++++++
>  drivers/ata/pata_it821x.c       |    6 ++++++
>  drivers/ata/pata_jmicron.c      |    4 ++++
>  drivers/ata/pata_marvell.c      |    4 ++++
>  drivers/ata/pata_mpiix.c        |    4 ++++
>  drivers/ata/pata_netcell.c      |    4 ++++
>  drivers/ata/pata_ns87410.c      |    4 ++++
>  drivers/ata/pata_oldpiix.c      |    4 ++++
>  drivers/ata/pata_opti.c         |    4 ++++
>  drivers/ata/pata_optidma.c      |    4 ++++
>  drivers/ata/pata_pdc202xx_old.c |    4 ++++
>  drivers/ata/pata_radisys.c      |    4 ++++
>  drivers/ata/pata_rz1000.c       |    6 ++++++
>  drivers/ata/pata_sc1200.c       |    4 ++++
>  drivers/ata/pata_serverworks.c  |    6 ++++++
>  drivers/ata/pata_sil680.c       |    4 ++++
>  drivers/ata/pata_sis.c          |    4 ++++
>  drivers/ata/pata_triflex.c      |    4 ++++
>  drivers/ata/pata_via.c          |    6 ++++++
>  drivers/ata/sata_sil.c          |    2 ++
>  drivers/ata/sata_sil24.c        |    2 ++
>  34 files changed, 165 insertions(+), 1 deletion(-)
> 
> Index: work1/drivers/ata/ahci.c
> ===================================================================
> --- work1.orig/drivers/ata/ahci.c
> +++ work1/drivers/ata/ahci.c
> @@ -225,10 +225,12 @@ static void ahci_thaw(struct ata_port *a
>  static void ahci_error_handler(struct ata_port *ap);
>  static void ahci_vt8251_error_handler(struct ata_port *ap);
>  static void ahci_post_internal_cmd(struct ata_queued_cmd *qc);
> +#ifdef CONFIG_PM
>  static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg);
>  static int ahci_port_resume(struct ata_port *ap);
>  static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg);
>  static int ahci_pci_device_resume(struct pci_dev *pdev);

Wouldn't it be simpler to add

#else
#define ahci_port_suspend(port, message) (NULL)

etc (or something similar)?

Regards,

Nigel



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