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dax/bus: Upgrade resource conflict message to dev_err() in alloc_dax_region()

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The dax_region resource conflict in alloc_dax_region() indicates a
serious configuration problem — two subsystems (e.g. dax_hmem and
dax_cxl) are attempting to register overlapping address ranges. This is
not a transient or debug-level condition; it represents a genuine
resource conflict that an administrator needs to be aware of.

Promote the log level from dev_dbg() to dev_err() so that the conflict
is visible by default without requiring dynamic debug to be enabled.

Suggested-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/linux-cxl/69c1a8d1c0fa9_7ee3100a1@dwillia2-mobl4.notmuch/
Signed-off-by: Tomasz Wolski <tomasz.wolski@fujitsu.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Richard Cheng <icheng@nvidia.com>
Link: https://patch.msgid.link/20260528064546.23362-1-tomasz.wolski@fujitsu.com
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
This commit is contained in:
Tomasz Wolski
2026-05-28 08:45:46 +02:00
committed by Alison Schofield
parent 1a6b6442a9
commit cd1a8d7887
1 changed files with 1 additions and 1 deletions
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2
drivers/dax/bus.c
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@@ -670,7 +670,7 @@ struct dax_region *alloc_dax_region(struct device *parent, int region_id,
rc = request_resource(&dax_regions, &dax_region->res);
if (rc) {
dev_dbg(parent, "dax_region resource conflict for %pR\n",
dev_err(parent, "dax_region resource conflict for %pR\n",
&dax_region->res);
goto err_res;
}