Input: surface3_spi - make const array header static, reduces object code size
authorColin Ian King <colin.king@canonical.com>
Thu, 7 Sep 2017 21:27:12 +0000 (14:27 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Mon, 11 Sep 2017 21:23:39 +0000 (14:23 -0700)
Don't populate the const array header on the stack, instead make it
static.  Makes the object code smaller by over 180 bytes:

Before:
   text    data     bss     dec     hex filename
   6003    1536       0    7539    1d73 surface3_spi.o

After:
   text    data     bss     dec     hex filename
   5726    1632       0    7358    1cbe surface3_spi.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
drivers/input/touchscreen/surface3_spi.c

index e12fb9b63f3113294f4b745d4c8320dfcc1b016c..5db0f1c4ef38404f1b69f50d011b864365f41aff 100644 (file)
@@ -173,7 +173,7 @@ static void surface3_spi_process_pen(struct surface3_ts_data *ts_data, u8 *data)
 
 static void surface3_spi_process(struct surface3_ts_data *ts_data)
 {
-       const char header[] = {
+       static const char header[] = {
                0xff, 0xff, 0xff, 0xff, 0xa5, 0x5a, 0xe7, 0x7e, 0x01
        };
        u8 *data = ts_data->rd_buf;