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Date: Mon, 12 Oct 2026 15:24:27 +0100
From: Jonathan Cameron <jic23@kernel.org>
To: Anisa Su <anisa.su887@gmail.com>
Cc: linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev,
 linux-kernel@vger.kernel.org, Dave Jiang <dave.jiang@intel.com>, Alison
 Schofield <alison.schofield@intel.com>, Davidlohr Bueso
 <dave@stgolabs.net>, Ira Weiny <iweiny@kernel.org>, Vishal Verma
 <vishal.l.verma@intel.com>, Fan Ni <nifan.cxl@gmail.com>, Li Ming
 <ming.li@zohomail.com>, Benjamin Cheatham <benjamin.cheatham@amd.com>,
 Gregory Price <gourry@gourry.net>, Richard Cheng <icheng@nvidia.com>, Anisa
 Su <anisa.su@samsung.com>
Subject: Re: [PATCH v16 0/8] DCD Prep Series
Message-ID: <20261012152427.43d304a5@jic23-hlaptop>
In-Reply-To: <20261010225852.10727-1-anisa.su@samsung.com>
References: <20261010225852.10727-1-anisa.su@samsung.com>
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On Sun, 11 Oct 2026 07:54:51 +0900
Anisa Su <anisa.su887@gmail.com> wrote:

> These are the first eight patches of the Dynamic Capacity Device (DCD)
> series. They set up: DCD enumeration, CDAT handling for DC partitions,
> the event interrupt plumbing, a preparatory refactor, and
> documentation of the DPA partition layout. They stand alone and keep DCD
> disabled. They are not dependent on the rest of the series.
> Patch 1 detects the 48h command set and then leaves mds->dcd_supported
> false. The flag is only turned on by the series that adds DCD event
> handling, so every DCD specific path added here is shut off at runtime:
> cxl_configure_dcd() never runs, no DC partition is created, no DCD
> interrupt is armed, and the CXL_PARTMODE_DYNAMIC_RAM paths are
> unreachable. The intent is to land the enumeration and plumbing while
> the extent to DAX pipeline is still under review.
> 
> Based on v7.3-rc6
> v15: https://lore.kernel.org/linux-cxl/20261007201828.952-1-anisa.su@samsung.com/
Hi Anisa,

For me, only that tiny reordering of the __free(kfree) and related pointer declaration
needs fixing before this merges.  As I mentioned in that patch, maybe Dave
would be willing to tweak that - obviously that also depends on what responses
you get from others!

Thanks,

Jonathan