summaryrefslogtreecommitdiffstats
path: root/drivers/char/nwbutton.c
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2016-01-25 16:54:25 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-09 17:39:56 -0800
commit990162f038400bd229685316beea1155be095125 (patch)
tree71695cf035b137fe12937beb875936e2c5c1a0fb /drivers/char/nwbutton.c
parentc74c9318a3a76c3714785bc06147dd207a9d0aa3 (diff)
downloadlinux-990162f038400bd229685316beea1155be095125.tar.bz2
char: nwbutton: avoid unused variable warning
When CONFIG_NWBUTTON_REBOOT is disabled, we get a warning about an unused variable: drivers/char/nwbutton.c:37:12: warning: 'reboot_count' defined but not used [-Wunused-variable] static int reboot_count = NUM_PRESSES_REBOOT; /* Number of presses to reboot */ Using if(IS_ENABLED()) instead of #ifdef around the user makes the code nicer to read and avoids the warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/nwbutton.c')
-rw-r--r--drivers/char/nwbutton.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index 76c490fa0511..0e184426db98 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -129,10 +129,9 @@ static void button_consume_callbacks (int bpcount)
static void button_sequence_finished (unsigned long parameters)
{
-#ifdef CONFIG_NWBUTTON_REBOOT /* Reboot using button is enabled */
- if (button_press_count == reboot_count)
+ if (IS_ENABLED(CONFIG_NWBUTTON_REBOOT) &&
+ button_press_count == reboot_count)
kill_cad_pid(SIGINT, 1); /* Ask init to reboot us */
-#endif /* CONFIG_NWBUTTON_REBOOT */
button_consume_callbacks (button_press_count);
bcount = sprintf (button_output_buffer, "%d\n", button_press_count);
button_press_count = 0; /* Reset the button press counter */