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authorHanjun Guo <guohanjun@huawei.com>2020-05-08 11:56:38 +0800
committerWill Deacon <will@kernel.org>2020-05-11 16:03:55 +0100
commit44cdc7b16e0a6a69a170cf98006aba1c1359ee3b (patch)
tree63ebde05ddf6edab6ca56a77122f67ee4ea68155 /drivers/acpi/arm64
parentACPI/IORT: work around num_ids ambiguity (diff)
downloadlinux-dev-44cdc7b16e0a6a69a170cf98006aba1c1359ee3b.tar.xz
linux-dev-44cdc7b16e0a6a69a170cf98006aba1c1359ee3b.zip
ACPI: IORT: Add extra message "applying workaround" for off-by-1 issue
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>
Diffstat (limited to 'drivers/acpi/arm64')
-rw-r--r--drivers/acpi/arm64/iort.c2
1 files changed, 2 insertions, 0 deletions
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);