Re: [PATCH 02/13] PCI/P2PDMA: Report ACS ports when the paths share no upstream bridge

> From: Leon Romanovsky <[email protected]>
> 
> A provider and a client below different Root Ports share no upstream
> bridge, so the search ends without a match and the walk takes the
> host-bridge route directly. Neither path is examined for ACS, so no
> redirect diagnostic is emitted and the host-bridge whitelist warning
> stays suppressed.
> 
> Examine the paths before taking that route, so every redirecting port is
> named in the pci=disable_acs_redir= hint. The mapping type is unchanged.
> 
> Signed-off-by: Leon Romanovsky <[email protected]>

Sashiko has reviewed this patch and found no issues. It looks great!

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