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From: Muchun Song In-Reply-To: <20260707090331.52971-1-kaitao.cheng@linux.dev> Date: Tue, 7 Jul 2026 19:05:12 +0800 Cc: Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Kaitao Cheng Content-Transfer-Encoding: 7bit Message-Id: References: <20260707090331.52971-1-kaitao.cheng@linux.dev> To: Kaitao Cheng X-Migadu-Flow: FLOW_OUT X-Stat-Signature: xjjwmb3s1muamztfh4wdfwt6kfuoc69k X-Rspamd-Queue-Id: E07AD100010 X-Rspam-User: X-Rspamd-Server: rspam07 X-HE-Tag: 1783422349-354906 X-HE-Meta: U2FsdGVkX19WSFNjh7K/Un/aqBnZRDoby6ebmBHK86oQxG5AGTMU9JkNlIoY7RpOZ8W4ZmgFpzFKhoZttqH9KH8AFFssWuWY9WtTAtmZ+/i64TTyDWqLDGPsl5DJ+e8pvmmFQolaNI3irzbo6LkQ/R6ac8sFbmgPDvA/+oVm0V2SlH0HxCEtILGMS9BGHRbWOOm14b1JCld85TIW5qd8wQ87j7YNQvuindXI8PQgw5xP3vpKkZU0WfgOXm8Uz6qHS1AhqEW1yymmiAKNDkrGaosIXLLf00fjT8HxWjgiBYaAq97/rlu/YCJPfxoEcpNpb9nJGjuIhzUwVdPJe2jYleFqe5MmWJUcIqDxSyaa0DGtRlUTN2ZCOpW/JMn5Ezt5ynODuwrYEJSz5kMZCP2D3PFDXUb+SpGhDnTVefw6RhLTSAiKOgcXvK7hjMlYZw0fDVkPFzYZVxwR8mEIbBI4zUG0/LRa38lOHOpqTHgk+M4ZtB1YgoDXTZyXjCcyid3Oqgmo24QK6cH+CnTxGsNm6T864NN0OgGyZPlb7Hw7gxRWmRSLSf7Kh5cVHaS23jVUtLe3ocUzeJtJ/u+pDHK1xholGzB2hVbZp1wRc7dMSVLLRJvMt/hh1+7AxCTCxAIvgw1eZXbukOcnzKVKAxzp62jRo3mbkSWtNa5U64s/ohNo3K/+P++tR4NgWuFP1eENGL6KvEAj9sTSmIg3Rg7IZjO4z/VwkZ6YZZ4jHdXqqk0haCF5WsvWjlsN5vyuqvXHrcLx1wkEsVD2oZ72KDTPgso8Kc30Bk0+MqCc9jCmqeapyohqqImYktvIQIsKyjcetCezZUYgaeqUkkhgRnq0lrHov7A6IzwKHEEhsFIoEsypGXWH8BipP157x7X2qGVlc83vQqT5aSEgQhMlz8z8EiCp0TzcmbtLgbtmrI9/AG2ECnEhmDfH1z+SSOxi2Z0BMsd28JpKW2Y+ewTPcKp 9YnSNHhg 5uegiGRpg9wJzkwOdkwyr0L4hR46jlD8338T3gOiPUBilqa6wu1EflKfqYulgECndm2sVFu28p67hffzq9sQurghpuZFLmoAF/9sz+IQo/eBwNcv475x2O3LqmJWCKz8wkasSEj/6XfFfkDrukN43KEuTF8jIl3sVomBXp9bLt0T86pYMpYk99RRJLttaihV0bLVqoVOCUXONlKq3Z3kIwhra2P0PEIJk5UBCVHr1vtpvw2Q= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > On Jul 7, 2026, at 17:03, Kaitao Cheng wrote: > > From: Kaitao Cheng > > MHP_MEMMAP_ON_MEMORY is defined inside the MEMORY_HOTPLUG block, and > MEMORY_HOTPLUG already depends on SPARSEMEM_VMEMMAP. Keep the explicit > MEMORY_HOTPLUG dependency for local readability, but drop the redundant > SPARSEMEM_VMEMMAP dependency. > > ZONE_DEVICE depends on MEMORY_HOTREMOVE, which depends on MEMORY_HOTPLUG. > MEMORY_HOTPLUG in turn depends on SPARSEMEM_VMEMMAP. Drop the direct > MEMORY_HOTPLUG and SPARSEMEM_VMEMMAP dependencies from ZONE_DEVICE. > > This does not change the set of valid configurations. > > Signed-off-by: Kaitao Cheng Acked-by: Muchun Song Thanks