From 7917f9cdb5032ac065ac6a5415f5722f215b2608 Mon Sep 17 00:00:00 2001 From: Jane Chu Date: Fri, 22 Apr 2022 16:45:02 -0600 Subject: [PATCH] acpi/nfit: rely on mce->misc to determine poison granularity nfit_handle_mec() hardcode poison granularity at L1_CACHE_BYTES. Instead, let the driver rely on mce->misc register to determine the poison granularity. Suggested-by: Dan Williams Reviewed-by: Dan Williams Signed-off-by: Jane Chu Link: https://lore.kernel.org/r/20220422224508.440670-2-jane.chu@oracle.com Signed-off-by: Dan Williams --- drivers/acpi/nfit/mce.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/nfit/mce.c b/drivers/acpi/nfit/mce.c index ee8d9973f60b..d48a388b796e 100644 --- a/drivers/acpi/nfit/mce.c +++ b/drivers/acpi/nfit/mce.c @@ -32,6 +32,7 @@ static int nfit_handle_mce(struct notifier_block *nb, unsigned long val, */ mutex_lock(&acpi_desc_lock); list_for_each_entry(acpi_desc, &acpi_descs, list) { + unsigned int align = 1UL << MCI_MISC_ADDR_LSB(mce->misc); struct device *dev = acpi_desc->dev; int found_match = 0; @@ -63,8 +64,7 @@ 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), - L1_CACHE_BYTES); + ALIGN_DOWN(mce->addr, align), align); nvdimm_region_notify(nfit_spa->nd_region, NVDIMM_REVALIDATE_POISON);