AcoSail/kernel_optimize_test
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HID: hid-lg: make array cbuf static const to shink object code size

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Don't populate array cbuf on the stack, instead make it static.
Makes the object code smaller by over 110 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  15096	   3504	    128	  18728	   4928	drivers/hid/hid-lg.o

After:
   text	   data	    bss	    dec	    hex	filename
  14884	   3600	    128	  18612	   48b4	drivers/hid/hid-lg.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Colin Ian King 2017-08-25 18:12:50 +01:00 committed by Jiri Kosina
parent b42a362e6d
commit 47af1cdb30
1 changed files with 3 additions and 1 deletions
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4
drivers/hid/hid-lg.c
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@ -756,7 +756,9 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
/* Setup wireless link with Logitech Wii wheel */ /* Setup wireless link with Logitech Wii wheel */
if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) { if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
const unsigned char cbuf[] = { 0x00, 0xAF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; static const unsigned char cbuf[] = {
0x00, 0xAF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
u8 *buf = kmemdup(cbuf, sizeof(cbuf), GFP_KERNEL); u8 *buf = kmemdup(cbuf, sizeof(cbuf), GFP_KERNEL);
if (!buf) { if (!buf) {