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V" , Davidlohr Bueso , Vishal Verma , Ira Weiny Subject: [PATCH v3 3/3] cxl/region: Simplify cxl_region_nid() Date: Tue, 18 Jun 2024 16:46:39 +0800 Message-Id: <20240618084639.1419629-4-ying.huang@intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240618084639.1419629-1-ying.huang@intel.com> References: <20240618084639.1419629-1-ying.huang@intel.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The node ID of the region can be gotten via resource start address directly. This simplifies the implementation of cxl_region_nid(). Signed-off-by: "Huang, Ying" Suggested-by: Alison Schofield Cc: Dan Williams Cc: Andrew Morton Cc: Jonathan Cameron Cc: Dave Jiang Cc: Bharata B Rao Cc: Alistair Popple Cc: Aneesh Kumar K.V Cc: Davidlohr Bueso Cc: Vishal Verma Cc: Ira Weiny Reviewed-by: Jonathan Cameron --- drivers/cxl/core/region.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index dc15ceba7ab7..605efe3562c6 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -2309,15 +2309,13 @@ static bool cxl_region_update_coordinates(struct cxl_region *cxlr, int nid) static int cxl_region_nid(struct cxl_region *cxlr) { struct cxl_region_params *p = &cxlr->params; - struct cxl_endpoint_decoder *cxled; - struct cxl_decoder *cxld; + struct resource *res; guard(rwsem_read)(&cxl_region_rwsem); - cxled = p->targets[0]; - if (!cxled) + res = p->res; + if (!res) return NUMA_NO_NODE; - cxld = &cxled->cxld; - return phys_to_target_node(cxld->hpa_range.start); + return phys_to_target_node(res->start); } static int cxl_region_perf_attrs_callback(struct notifier_block *nb,