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Date: Thu, 5 Mar 2026 18:26:24 -0700
From: Keith Busch <kbusch@kernel.org>
To: dan.j.williams@intel.com
Cc: Keith Busch <kbusch@meta.com>, linux-cxl@vger.kernel.org,
	dave.jiang@intel.com, gourry@gourry.net
Subject: Re: [PATCH] cxl/acpi: Fix CXL_ACPI and CXL_PMEM Kconfig tristate
 mismatch
Message-ID: <aaotQCg0TspiiaDH@kbusch-mbp>
References: <20260305204057.1516948-1-kbusch@meta.com>
 <69aa28d0d9076_6423c100da@dwillia2-mobl4.notmuch>
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In-Reply-To: <69aa28d0d9076_6423c100da@dwillia2-mobl4.notmuch>

On Thu, Mar 05, 2026 at 05:07:28PM -0800, dan.j.williams@intel.com wrote:
> > The call from cxl_acpi_probe() is guarded by
> > IS_ENABLED(CONFIG_CXL_PMEM), which evaluates to true for both =y and =m.

<snip>

> So I do not think this is sufficient because there is no
> devm_cxl_add_nvdimm_bridge() stub in the CONFIG_CXL_PMEM=n case, right?

It's called from a preprocesser "#if 0" section, so it shouldn't be
compiled in. At least it seems perfectly fine in local testing, but is
that compiler specific? I think this should have been optimized out.