[dpdk-stable] [dpdk-dev] [PATCH] bus/pci: fix mapping of PCI resources

[Burakov, Anatoly]

On 28-Sep-20 7:34 AM, alvinx.zhang at intel.com wrote:
> From: Alvin Zhang <alvinx.zhang at intel.com>
> 
> When mapping PCI bar resources around the MSI-X table, if the size
> of the first part is 0, the second part should also be mapped if
> its size is not 0.
> 
> Fixes: e200535c1ca3 ("mem: drop mapping API workaround")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Alvin Zhang <alvinx.zhang at intel.com>
> ---
>   drivers/bus/pci/linux/pci_vfio.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/bus/pci/linux/pci_vfio.c b/drivers/bus/pci/linux/pci_vfio.c
> index 34b5da8..37bfda8 100644
> --- a/drivers/bus/pci/linux/pci_vfio.c
> +++ b/drivers/bus/pci/linux/pci_vfio.c
> @@ -565,7 +565,7 @@
>   		}
>   
>   		/* if there's a second part, try to map it */
> -		if (map_addr != NULL
> +		if ((map_addr != NULL || memreg[0].size == 0)
>   			&& memreg[1].offset && memreg[1].size) {
>   			void *second_addr = RTE_PTR_ADD(bar_addr,
>   						(uintptr_t)(memreg[1].offset -
> 

Dupe of http://patches.dpdk.org/patch/78768/ ?

-- 
Thanks,
Anatoly