[PATCH 3/9] input: fix empty-body warning in synaptics.c

Fix gcc empty-body warning when -Wextra is used: ../drivers/input/mouse/synaptics.c: In function ‘synaptics_process_packet’: ../drivers/input/mouse/synaptics.c:1106:6: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body] ; /* Nothing, treat a pen as a single finger */ ^ Signed-off-by: Randy Dunlap <rdunlap(a)infradead.org&gt; Cc: Dmitry Torokhov <dmitry.torokhov(a)gmail.com&gt; Cc: linux-input(a)vger.kernel.org Cc: Linus Torvalds <torvalds(a)linux-foundation.org&gt; Cc: Andrew Morton <akpm(a)linux-foundation.org&gt; --- drivers/input/mouse/synaptics.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- linux-next-20200327.orig/drivers/input/mouse/synaptics.c +++ linux-next-20200327/drivers/input/mouse/synaptics.c @@ -20,6 +20,7 @@ * Trademarks are the property of their respective owners. */ +#include <linux/kernel.h> #include <linux/module.h> #include <linux/delay.h> #include <linux/dmi.h> @@ -1103,7 +1104,7 @@ static void synaptics_process_packet(str break; case 2: if (SYN_MODEL_PEN(info->model_id)) - ; /* Nothing, treat a pen as a single finger */ + do_empty(); /* Nothing, treat a pen as a single finger */ break; case 4 ... 15: if (SYN_CAP_PALMDETECT(info->capabilities))