linux-kernel - [PATCH v1 0/6] P2PDMA Cleanup

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Message-Id: <20210610160609.28447-1-logang@deltatee.com>
Date:   Thu, 10 Jun 2021 10:06:03 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
        Bjorn Helgaas <helgaas@...nel.org>
Cc:     Stephen Bates <sbates@...thlin.com>,
        Christoph Hellwig <hch@....de>,
        Dan Williams <dan.j.williams@...el.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Christian König <christian.koenig@....com>,
        John Hubbard <jhubbard@...dia.com>,
        Don Dutile <ddutile@...hat.com>,
        Logan Gunthorpe <logang@...tatee.com>
Subject: [PATCH v1 0/6] P2PDMA Cleanup

Hi Bjorn,

This patch series consists of the P2PDMA cleanup and prep patches based
on feedback from  my P2PDMA mapping operations series (most recently
posted at [1]). I've reduced the recipient list of this series to those
that I thought would be interested or have provided the feedback that
inspired these patches.

Please consider taking these patches in the near term ahead of my mapping
ops series. These patches are largely cleanup and other minor fixes. The only
functional change is Patch 4 which adds a new warning that was suggested by
Don.

Patch 6 arguably isn't necessary yet as we don't care about sleeping
yet -- but it'd be a nice to have to reduce the number of prep patches for my
other series. However, if you don't want to take this patch now, I can
carry it in my other series.

I'm happy to make further fixes and update this series if anyone finds any
additional issues on review.

Thanks,

Logan

[1] https://lore.kernel.org/linux-block/20210513223203.5542-1-logang@deltatee.com/

--

Logan Gunthorpe (6):
  PCI/P2PDMA: Rename upstream_bridge_distance() and rework documentation
  PCI/P2PDMA: Use a buffer on the stack for collecting the acs list
  PCI/P2PDMA: Cleanup type for return value of calc_map_type_and_dist()
  PCI/P2PDMA: Print a warning if the host bridge is not in the whitelist
  PCI/P2PDMA: Refactor pci_p2pdma_map_type() to take pagemap and device
  PCI/P2PDMA: Avoid pci_get_slot() which sleeps

 drivers/pci/p2pdma.c | 157 +++++++++++++++++++++++++------------------
 1 file changed, 92 insertions(+), 65 deletions(-)

base-commit: 614124bea77e452aa6df7a8714e8bc820b489922
--
2.20.1