From: Hanjun Guo <guohanjun@huawei.com>
Date: Fri, 8 May 2020 11:56:38 +0800
Subject: ACPI: IORT: Add extra message "applying workaround" for off-by-1
issue
Git-commit: 44cdc7b16e0a6a69a170cf98006aba1c1359ee3b
Patch-mainline: v5.8-rc1
References: jsc#SLE-12251
As we already applied a workaround for the off-by-1 issue,
it's good to add extra message "applying workaround" to make
people less uneasy to see FW_BUG message in the boot log.
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/1588910198-8348-1-git-send-email-guohanjun@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/acpi/arm64/iort.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index b011d25af676..6e445bc55537 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -332,6 +332,8 @@ static int iort_id_map(struct acpi_iort_id_mapping *map, u8 type, u32 rid_in,
map, rid_in);
if (rid_in != map->input_base)
return -ENXIO;
+
+ pr_err(FW_BUG "applying workaround.\n");
}
*rid_out = map->output_base + (rid_in - map->input_base);
--
2.26.2