Re: [PATCH V3 1/3] block: clear BLK_FEAT_PCI_P2PDMA in blk_stack_limits() for non-supporting devices

Christoph Hellwig
2026-04-17T07:53:00Z

On Thu, Apr 16, 2026 at 02:26:31PM -0700, Chaitanya Kulkarni wrote:
> BLK_FEAT_NOWAIT and BLK_FEAT_POLL are cleared in blk_stack_limits()
> when an underlying device does not support them. Apply the same
> treatment to BLK_FEAT_PCI_P2PDMA: stacking drivers set it
> unconditionally and rely on the core to clear it whenever a
> non-supporting member device is stacked.
>
> Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>