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[PATCH] input: elantech: make arrays debounce_packet static, reduces object code size

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From: Colin Ian King <colin.king@canonical.com>

Don't populate the arrays debounce_packet on the stack, instead make
them static.  Makes the object code smaller by over 870 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  30553	   9152	      0	  39705	   9b19	drivers/input/mouse/elantech.o

After:
   text	   data	    bss	    dec	    hex	filename
  29521	   9312	      0	  38833	   97b1	drivers/input/mouse/elantech.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/input/mouse/elantech.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 6428d6f4d568..b84cd978fce2 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -700,7 +700,9 @@ static int elantech_debounce_check_v2(struct psmouse *psmouse)
          * When we encounter packet that matches this exactly, it means the
          * hardware is in debounce status. Just ignore the whole packet.
          */
-        const u8 debounce_packet[] = { 0x84, 0xff, 0xff, 0x02, 0xff, 0xff };
+	static const u8 debounce_packet[] = {
+		0x84, 0xff, 0xff, 0x02, 0xff, 0xff
+	};
         unsigned char *packet = psmouse->packet;
 
         return !memcmp(packet, debounce_packet, sizeof(debounce_packet));
@@ -741,7 +743,9 @@ static int elantech_packet_check_v2(struct psmouse *psmouse)
 static int elantech_packet_check_v3(struct psmouse *psmouse)
 {
 	struct elantech_data *etd = psmouse->private;
-	const u8 debounce_packet[] = { 0xc4, 0xff, 0xff, 0x02, 0xff, 0xff };
+	static const u8 debounce_packet[] = {
+		0xc4, 0xff, 0xff, 0x02, 0xff, 0xff
+	};
 	unsigned char *packet = psmouse->packet;
 
 	/*
-- 
2.14.1

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[PATCH] input: elantech: make arrays debounce_packet static, reduces object code size Colin King <colin.king@canonical.com> - 2017-09-06 15:10 +0200
  Re: [PATCH] input: elantech: make arrays debounce_packet static,  reduces object code size Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2017-09-07 23:40 +0200

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