linux-kernel - Re: [PATCH 5.8 070/255] dmaengine: idxd: fix PCI

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Date:   Tue, 1 Sep 2020 10:13:00 -0700
From:   Dave Jiang <dave.jiang@...el.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Cc:     stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        dmaengine@...r.kernel.org, Vinod Koul <vkoul@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: Re: [PATCH 5.8 070/255] dmaengine: idxd: fix PCI_MSI build errors



On 9/1/2020 8:08 AM, Greg Kroah-Hartman wrote:
> [ Upstream commit d6a7bb869dd8a516901591136a9a895fd829d6c6 ]
> 
> Fix build errors when CONFIG_PCI_MSI is not enabled by making the
> driver depend on PCI_MSI:
> 
> ld: drivers/dma/idxd/device.o: in function `idxd_mask_msix_vector':
> device.c:(.text+0x26f): undefined reference to `pci_msi_mask_irq'
> ld: drivers/dma/idxd/device.o: in function `idxd_unmask_msix_vector':
> device.c:(.text+0x2af): undefined reference to `pci_msi_unmask_irq'
> 
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Cc: Dave Jiang <dave.jiang@...el.com>
> Cc: dmaengine@...r.kernel.org
> Cc: Vinod Koul <vkoul@...nel.org>
> Link: https://lore.kernel.org/r/9dee3f46-70d9-ea75-10cb-5527ab297d1d@infradead.org
> Signed-off-by: Vinod Koul <vkoul@...nel.org>
> Signed-off-by: Sasha Levin <sashal@...nel.org>

Acked-by: Dave Jiang <dave.jiang@...el.com>

> ---
>   drivers/dma/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index de41d7928bff2..984354ca877de 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -285,6 +285,7 @@ config INTEL_IDMA64
>   config INTEL_IDXD
>   	tristate "Intel Data Accelerators support"
>   	depends on PCI && X86_64
> +	depends on PCI_MSI
>   	select DMA_ENGINE
>   	select SBITMAP
>   	help
>