From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Don't populate the const read-only array 'buf' on the stack but instead
make it stati. Makes the object code smaller by 26 bytes:
Before:
text data bss dec hex filename
14378 2384 64 16826 41ba linux/drivers/hid/hid-asus.o
After:
text data bss dec hex filename
14296 2440 64 16800 41a0 linux/drivers/hid/hid-asus.o
(gcc version 7.2.0 x86_64)
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/hid/hid-asus.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 6d2894b7d8e7..89d29f323366 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -561,7 +561,9 @@ static int asus_input_mapping(struct hid_device *hdev,
static int asus_start_multitouch(struct hid_device *hdev)
{
int ret;
- const unsigned char buf[] = { FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00 };
+ static const unsigned char buf[] = {
+ FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00
+ };
unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL);
if (!dmabuf) {
--
2.15.1
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