Re: [PATCH v4 06/18] PCI/P2PDMA: Gate the host bridge whitelist warning on verbose
Jason Gunthorpe <[email protected]>
| Newsgroups | org.kernel.vger.linux-doc,dev.linux.lists.iommu,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pci |
|---|---|
| Message-ID | <178761377055.3197084.7003957681533954491.b4-review@b4> |
On Fri, 21 Aug 2026 22:38:37 +0300, Leon Romanovsky <[email protected]> wrote: > calc_map_type_and_dist() prints every other diagnostic under its verbose > argument, but reaches the "Host bridge not in P2PDMA whitelist" warning > through host_bridge_whitelist(), which it hands acs_redirects instead. > A caller that asked for a silent answer still gets the warning whenever > any port on the path has an ACS redirect bit set, the CPU is not > whitelisted by cpu_supports_p2pdma(), and the host bridge is not in > pci_p2pdma_whitelist[]. > > [...] Reviewed-by: Jason Gunthorpe <[email protected]> -- Jason