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cxl/mem: Do not return error if CONFIG_CXL_MCE unset

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CONFIG_CXL_MCE depends on CONFIG_MEMORY_FAILURE, if
CONFIG_CXL_MCE is not set, devm_cxl_register_mce_notifier() will return
an -EOPNOTSUPP, it will cause cxl_mem_state_create() failure , and then
cxl pci device probing failed. In this case, it should not break cxl pci
device probing.

Add a checking in cxl_mem_state_create() to check if the returned value
of devm_cxl_register_mce_notifier() is -EOPNOTSUPP, if yes, just output
a warning log, do not let cxl_mem_state_create() return an error.

Signed-off-by: Li Ming <ming.li@zohomail.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20250227101848.388595-1-ming.li@zohomail.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Li Ming 2025-02-27 18:18:48 +08:00 committed by Dave Jiang
parent 763e15d047
commit 84f8b6e242
1 changed files with 3 additions and 1 deletions
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4
drivers/cxl/core/mbox.c
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@ -1473,7 +1473,9 @@ struct cxl_memdev_state *cxl_memdev_state_create(struct device *dev)
mds->cxlds.type = CXL_DEVTYPE_CLASSMEM;
rc = devm_cxl_register_mce_notifier(dev, &mds->mce_notifier);
if (rc)
if (rc == -EOPNOTSUPP)
dev_warn(dev, "CXL MCE unsupported\n");
else if (rc)
return ERR_PTR(rc);
return mds;