Subject: [PATCH v3 1/3] PCI: designware: Rename get_msi_data to get_msi_addr

From: [email-masked] (Bjorn Helgaas)
Date: Tue, 23 Sep 2014 16:45:55 -0600

[+cc Mohit, Jingoo]

On Tue, Sep 23, 2014 at 10:28:58PM +0800, Minghuan Lian wrote:
> The function get_msi_data is used to return MSI message address.
> In order to accurately express function purpose the patch rename
> it to get_msi_addr.
> 
> Signed-off-by: Minghuan Lian <[email-masked]>

I think this looks like a good idea, but it needs an ack from Mohit and/or
Jingoo (cc'd).

You previously asked whether .get_msi_addr() should also be changed to
return u64 instead of u32.  I think it should, and you can do that in a
separate patch that also changes the use in dw_msi_setup_irq() to split the
64-bit result into msg.address_lo and msg.address_hi.

I don't see any implementations of .get_msi_data() or .get_msi_addr(), so 
this seems pretty straightforward.

Bjorn

> ---
> Change log:
> v3: no change
> v2: no change just derived from v1
> 
>  drivers/pci/host/pcie-designware.c | 4 ++--
>  drivers/pci/host/pcie-designware.h | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
> index 5d720c2..1c09f814 100644
> --- a/drivers/pci/host/pcie-designware.c
> +++ b/drivers/pci/host/pcie-designware.c
> @@ -361,8 +361,8 @@ static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
>  	 */
>  	desc->msi_attrib.multiple = msgvec;
>  
> -	if (pp->ops->get_msi_data)
> -		msg.address_lo = pp->ops->get_msi_data(pp);
> +	if (pp->ops->get_msi_addr)
> +		msg.address_lo = pp->ops->get_msi_addr(pp);
>  	else
>  		msg.address_lo = virt_to_phys((void *)pp->msi_data);
>  	msg.address_hi = 0x0;
> diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
> index 48f8670..904e40a 100644
> --- a/drivers/pci/host/pcie-designware.h
> +++ b/drivers/pci/host/pcie-designware.h
> @@ -70,7 +70,7 @@ struct pcie_host_ops {
>  	void (*host_init)(struct pcie_port *pp);
>  	void (*msi_set_irq)(struct pcie_port *pp, int irq);
>  	void (*msi_clear_irq)(struct pcie_port *pp, int irq);
> -	u32 (*get_msi_data)(struct pcie_port *pp);
> +	u32 (*get_msi_addr)(struct pcie_port *pp);
>  	void (*scan_bus)(struct pcie_port *pp);
>  	int (*msi_host_init)(struct pcie_port *pp, struct msi_chip *chip);
>  };
> -- 
> 1.9.1
>