From 84f8b6e242deb997f2b32b4fc0895e8703704029 Mon Sep 17 00:00:00 2001 From: Li Ming Date: Thu, 27 Feb 2025 18:18:48 +0800 Subject: [PATCH] cxl/mem: Do not return error if CONFIG_CXL_MCE unset 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 Reviewed-by: Dave Jiang Reviewed-by: Ira Weiny Link: https://patch.msgid.link/20250227101848.388595-1-ming.li@zohomail.com Signed-off-by: Dave Jiang --- drivers/cxl/core/mbox.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index e088c6ba1705..7450c4df522e 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -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; -- 2.50.1