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[96.255.20.138]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8c711d2889asm1253553485a.27.2026.02.02.11.19.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Feb 2026 11:19:12 -0800 (PST) Date: Mon, 2 Feb 2026 14:19:10 -0500 From: Gregory Price To: "Cheatham, Benjamin" Cc: linux-mm@kvack.org, linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kernel-team@meta.com, dave@stgolabs.net, jonathan.cameron@huawei.com, dave.jiang@intel.com, alison.schofield@intel.com, vishal.l.verma@intel.com, ira.weiny@intel.com, dan.j.williams@intel.com, willy@infradead.org, jack@suse.cz, terry.bowman@amd.com, john@jagalactic.com Subject: Re: [PATCH 8/9] cxl/core: Add dax_kmem_region and sysram_region drivers Message-ID: References: <20260129210442.3951412-1-gourry@gourry.net> <20260129210442.3951412-9-gourry@gourry.net> <9652a424-6eb1-462f-8cbd-181af880f98b@amd.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9652a424-6eb1-462f-8cbd-181af880f98b@amd.com> On Mon, Feb 02, 2026 at 11:02:37AM -0600, Cheatham, Benjamin wrote: > Sorry if this is a stupid question, but what stops auto regions from binding to the > sysram/dax region drivers? They all bind to region devices, so I assume there's something > keeping them from binding before the core region driver gets a chance. > I just grok'd the implications of this question. I *think* the answer is "probe order" - which is bad. I need to think about this a bit more and get a more definitive answer. ~Gregory