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cxl/region: Simplify cxl_region_nid()

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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 <ying.huang@intel.com>
Suggested-by: Alison Schofield <alison.schofield@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Bharata B Rao <bharata@amd.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://patch.msgid.link/20240618084639.1419629-4-ying.huang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Huang Ying
2024-06-18 16:46:39 +08:00
committed by Dave Jiang
parent 643e8e3e65
commit f3d70720e9
1 changed files with 4 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/cxl/core/region.c
+4 -6
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@@ -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,