[PATCH] acpi: blacklist: fix clang warning for unused dmi table

From: Arnd Bergmann
Date: Wed Jul 10 2019 - 09:06:10 EST

When CONFIG_DMI is disabled, we only have a tentative declaration,
which causes a warning from clang:

drivers/acpi/blacklist.c:20:35: error: tentative array definition assumed to have one element [-Werror]
static const struct dmi_system_id acpi_rev_dmi_table[] __initconst;

As the variable is not actually used here, hide it entirely
in an #ifdef to shut up the warning.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
drivers/acpi/blacklist.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index ad2c565f5cbe..a86a770c9b79 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -17,7 +17,9 @@

#include "internal.h"

+#ifdef CONFIG_DMI
static const struct dmi_system_id acpi_rev_dmi_table[] __initconst;

* POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -61,7 +63,9 @@ int __init acpi_blacklisted(void)

+#ifdef CONFIG_DMI

return blacklisted;