usb: renesas_usbhs: make array type_array static const
authorColin Ian King <colin.king@canonical.com>
Tue, 4 Jul 2017 10:31:24 +0000 (11:31 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 17 Jul 2017 11:13:44 +0000 (13:13 +0200)
Array type_array can be made static const rather than being
populated on the stack. Makes the object code smaller:

Before:
   text    data     bss     dec     hex filename
   8087    1496       0    9583    256f drivers/usb/renesas_usbhs/pipe.o

After:
   text    data     bss     dec     hex filename
   7883    1584       0    9467    24fb drivers/usb/renesas_usbhs/pipe.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/renesas_usbhs/pipe.c

index 9396a8c..d811f05 100644 (file)
@@ -401,7 +401,7 @@ static int usbhsp_setup_pipecfg(struct usbhs_pipe *pipe, int is_host,
        u16 dir = 0;
        u16 epnum = 0;
        u16 shtnak = 0;
-       u16 type_array[] = {
+       static const u16 type_array[] = {
                [USB_ENDPOINT_XFER_BULK] = TYPE_BULK,
                [USB_ENDPOINT_XFER_INT]  = TYPE_INT,
                [USB_ENDPOINT_XFER_ISOC] = TYPE_ISO,