Re: [PATCH 03/10] PCI/P2PDMA: Simplify bus address mapping API

[Christoph Hellwig]

On Wed, Jul 23, 2025 at 04:00:04PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@xxxxxxxxxx>
> 
> Update the pci_p2pdma_bus_addr_map() function to take a direct pointer
> to the p2pdma_provider structure instead of the pci_p2pdma_map_state.
> This simplifies the API by removing the need for callers to extract
> the provider from the state structure.
> 
> The change updates all callers across the kernel (block layer, IOMMU,
> DMA direct, and HMM) to pass the provider pointer directly, making
> the code more explicit and reducing unnecessary indirection. This
> also removes the runtime warning check since callers now have direct
> control over which provider they use.

Again I don't actually see any simplification here.  But maybe I'm
missing the ultimate goal here.