* [PATCH] acpi: blacklist: fix clang warning for unused dmi table
@ 2019-07-10 13:05 Arnd Bergmann
2019-07-10 17:09 ` Nathan Chancellor
2019-07-18 8:43 ` Rafael J. Wysocki
0 siblings, 2 replies; 3+ messages in thread
From: Arnd Bergmann @ 2019-07-10 13:05 UTC (permalink / raw)
To: Rafael J. Wysocki, Len Brown
Cc: Arnd Bergmann, Thomas Gleixner, linux-acpi, linux-kernel,
clang-built-linux
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@arndb.de>
---
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;
+#endif
/*
* POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -61,7 +63,9 @@ int __init acpi_blacklisted(void)
}
(void)early_acpi_osi_init();
+#ifdef CONFIG_DMI
dmi_check_system(acpi_rev_dmi_table);
+#endif
return blacklisted;
}
--
2.20.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] acpi: blacklist: fix clang warning for unused dmi table
2019-07-10 13:05 [PATCH] acpi: blacklist: fix clang warning for unused dmi table Arnd Bergmann
@ 2019-07-10 17:09 ` Nathan Chancellor
2019-07-18 8:43 ` Rafael J. Wysocki
1 sibling, 0 replies; 3+ messages in thread
From: Nathan Chancellor @ 2019-07-10 17:09 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Rafael J. Wysocki, Len Brown, Thomas Gleixner, linux-acpi,
linux-kernel, clang-built-linux
On Wed, Jul 10, 2019 at 03:05:43PM +0200, Arnd Bergmann wrote:
> 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@arndb.de>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] acpi: blacklist: fix clang warning for unused dmi table
2019-07-10 13:05 [PATCH] acpi: blacklist: fix clang warning for unused dmi table Arnd Bergmann
2019-07-10 17:09 ` Nathan Chancellor
@ 2019-07-18 8:43 ` Rafael J. Wysocki
1 sibling, 0 replies; 3+ messages in thread
From: Rafael J. Wysocki @ 2019-07-18 8:43 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Len Brown, Thomas Gleixner, linux-acpi, linux-kernel, clang-built-linux
On Wednesday, July 10, 2019 3:05:43 PM CEST Arnd Bergmann wrote:
> 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@arndb.de>
> ---
> 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;
> +#endif
>
> /*
> * POLICY: If *anything* doesn't work, put it on the blacklist.
> @@ -61,7 +63,9 @@ int __init acpi_blacklisted(void)
> }
>
> (void)early_acpi_osi_init();
> +#ifdef CONFIG_DMI
> dmi_check_system(acpi_rev_dmi_table);
> +#endif
>
> return blacklisted;
> }
>
Applied, thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-07-10 17:09 ` Nathan Chancellor
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