[PATCH] HID: prodikeys: make array keys static const, makes object smaller

[Colin King]

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

Don't populate the array keys on the stack but instead make it
static const. Makes the object code smaller by 166 bytes.

Before:
   text    data     bss     dec     hex filename
  18931    5872     480   25283    62c3 drivers/hid/hid-prodikeys.o

After:
   text    data     bss     dec     hex filename
  18669    5968     480   25117    621d drivers/hid/hid-prodikeys.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/hid/hid-prodikeys.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index 21544ebff855..fb6841ebe4d9 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -516,7 +516,7 @@ static void pcmidi_setup_extra_keys(
                MY PICTURES =>  KEY_WORDPROCESSOR
                MY MUSIC=>      KEY_SPREADSHEET
        */
-       unsigned int keys[] = {
+       static const unsigned int keys[] = {
                KEY_FN,
                KEY_MESSENGER, KEY_CALENDAR,
                KEY_ADDRESSBOOK, KEY_DOCUMENTS,
@@ -532,7 +532,7 @@ static void pcmidi_setup_extra_keys(
                0
        };
 
-       unsigned int *pkeys = &keys[0];
+       const unsigned int *pkeys = &keys[0];
        unsigned short i;
 
        if (pm->ifnum != 1)  /* only set up ONCE for interace 1 */
-- 
2.20.1