linux-kernel - Re: [PATCHv3 04/27] PCI: mobiveil: remove flag MSI_FLAG_MULTI_PCI

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Date:   Tue, 5 Feb 2019 11:35:19 +0530
From:   Subrahmanya Lingappa <l.subrahmanya@...iveil.co.in>
To:     "Z.q. Hou" <zhiqiang.hou@....com>
Cc:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will.deacon@....com" <will.deacon@....com>,
        Mingkai Hu <mingkai.hu@....com>,
        "M.h. Lian" <minghuan.lian@....com>,
        Xiaowei Bao <xiaowei.bao@....com>
Subject: Re: [PATCHv3 04/27] PCI: mobiveil: remove flag MSI_FLAG_MULTI_PCI_MSI

Zhiqiang,
why are we removing multi-MSI support ?
what functionality this driver is not providing to support it ?

Thanks.

On Tue, Jan 29, 2019 at 1:38 PM Z.q. Hou <zhiqiang.hou@....com> wrote:
>
> From: Hou Zhiqiang <Zhiqiang.Hou@....com>
>
> The current code does not support multiple MSIs, so remove
> the corresponding flag from the msi_domain_info structure.
>
> Fixes: 1e913e58335f ("PCI: mobiveil: Add MSI support")
> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
> Reviewed-by: Minghuan Lian <Minghuan.Lian@....com>
> ---
> V3:
>  - No change
>
>  drivers/pci/controller/pcie-mobiveil.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
> index 563210e731d3..a0dd337c6214 100644
> --- a/drivers/pci/controller/pcie-mobiveil.c
> +++ b/drivers/pci/controller/pcie-mobiveil.c
> @@ -703,7 +703,7 @@ static struct irq_chip mobiveil_msi_irq_chip = {
>
>  static struct msi_domain_info mobiveil_msi_domain_info = {
>         .flags  = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
> -                  MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX),
> +                  MSI_FLAG_PCI_MSIX),
>         .chip   = &mobiveil_msi_irq_chip,
>  };
>
> --
> 2.17.1
>