linux-kernel - [PATCH v2 1/1] acpi/nfit: fix badrange insertion in nfit_handle

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Date:   Thu, 19 Nov 2020 09:57:46 +0800
From:   Zhen Lei <thunder.leizhen@...wei.com>
To:     Dan Williams <dan.j.williams@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        linux-nvdimm <linux-nvdimm@...ts.01.org>,
        linux-acpi <linux-acpi@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
CC:     Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH v2 1/1] acpi/nfit: fix badrange insertion in nfit_handle_mce()

Make sure the badrange to be reported can always cover mce->addr.

Fixes: 9ffd6350a103 ("nfit: don't start a full scrub by default for an MCE")
Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
Reviewed-by: Vishal Verma <vishal.l.verma@...el.com>
---
 drivers/acpi/nfit/mce.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c
index ee8d9973f60b..053e719c7bea 100644
--- a/drivers/acpi/nfit/mce.c
+++ b/drivers/acpi/nfit/mce.c
@@ -63,7 +63,7 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val,
 
 		/* If this fails due to an -ENOMEM, there is little we can do */
 		nvdimm_bus_add_badrange(acpi_desc->nvdimm_bus,
-				ALIGN(mce->addr, L1_CACHE_BYTES),
+				ALIGN_DOWN(mce->addr, L1_CACHE_BYTES),
 				L1_CACHE_BYTES);
 		nvdimm_region_notify(nfit_spa->nd_region,
 				NVDIMM_REVALIDATE_POISON);
-- 
2.26.0.106.g9fadedd