linux-kernel - Re: [PATCH -next] PCI: hv: Remove unused function hv_set_msi_entry_from

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Message-ID: <YjM/z4vlPlVhdfMu@boqun-archlinux>
Date:   Thu, 17 Mar 2022 22:03:59 +0800
From:   Boqun Feng <boqun.feng@...il.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        wei.liu@...nel.org, decui@...rosoft.com, lorenzo.pieralisi@....com,
        robh@...nel.org, kw@...ux.com, bhelgaas@...gle.com,
        linux-hyperv@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] PCI: hv: Remove unused function
 hv_set_msi_entry_from_desc()

On Thu, Mar 17, 2022 at 04:51:30PM +0800, YueHaibing wrote:
> This patch fix the following build error:
> 
> drivers/pci/controller/pci-hyperv.c:769:13: error: ‘hv_set_msi_entry_from_desc’ defined but not used [-Werror=unused-function]
>   769 | static void hv_set_msi_entry_from_desc(union hv_msi_entry *msi_entry,
> 
> On arm64 hv_set_msi_entry_from_desc() is not used anymore since
> commit d06957d7a692 ("PCI: hv: Avoid the retarget interrupt hypercall in irq_unmask() on ARM64").
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>

Good catch!

Acked-by: Boqun Feng <boqun.feng@...il.com>

Regards,
Boqun

> ---
>  drivers/pci/controller/pci-hyperv.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c
> index df84d221e3de..558b35aba610 100644
> --- a/drivers/pci/controller/pci-hyperv.c
> +++ b/drivers/pci/controller/pci-hyperv.c
> @@ -766,14 +766,6 @@ static unsigned int hv_msi_get_int_vector(struct irq_data *irqd)
>  	return irqd->parent_data->hwirq;
>  }
>  
> -static void hv_set_msi_entry_from_desc(union hv_msi_entry *msi_entry,
> -				       struct msi_desc *msi_desc)
> -{
> -	msi_entry->address = ((u64)msi_desc->msg.address_hi << 32) |
> -			      msi_desc->msg.address_lo;
> -	msi_entry->data = msi_desc->msg.data;
> -}
> -
>  /*
>   * @nr_bm_irqs:		Indicates the number of IRQs that were allocated from
>   *			the bitmap.
> -- 
> 2.17.1
>