Messages in this thread Patch in this message | | | From | Randy Dunlap <> | Subject | [PATCH] acpi/button.c: fix defined but not used warning | Date | Sat, 7 Jul 2018 08:25:01 -0700 |
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From: Randy Dunlap <rdunlap@infradead.org>
Fix a build warning in the ACPI button driver when CONFIG_PROC_FS is not enabled by marking the unused function as __maybe_unused.
../drivers/acpi/button.c:252:12: warning: 'acpi_button_state_seq_show' defined but not used [-Wunused-function]
Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Len Brown <lenb@kernel.org> Cc: linux-acpi@vger.kernel.org --- drivers/acpi/button.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- linux-next-20180706.orig/drivers/acpi/button.c +++ linux-next-20180706/drivers/acpi/button.c @@ -21,6 +21,7 @@ #define pr_fmt(fmt) "ACPI: button: " fmt +#include <linux/compiler.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -249,7 +250,8 @@ static int acpi_lid_notify_state(struct return ret; } -static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) +static int __maybe_unused acpi_button_state_seq_show(struct seq_file *seq, + void *offset) { struct acpi_device *device = seq->private; int state;
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