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usb: musb: constify musb_hdrc_config structures

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Declare musb_hdrc_config structures as const as they are only stored in
the config field of a musb_hdrc_platform_data structure. This field is of
type const, so musb_hdrc_config structures having this property can be
made const too.
Done using Coccinelle:

@r disable optional_qualifier@
identifier x;
position p;
@@
static struct musb_hdrc_config x@p={...};

@ok@
struct musb_hdrc_platform_data pdata;
identifier r.x;
position p;
@@
pdata.config=&x@p;

@bad@
position p != {r.p,ok.p};
identifier r.x;
@@
x@p

@depends on !bad disable optional_qualifier@
identifier r.x;
@@
+const
struct musb_hdrc_config x;

File size before:
   text	   data	    bss	    dec	    hex	filename
   1212	    338	      0	   1550	    60e	drivers/usb/musb/jz4740.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   1268	    290	      0	   1558	    616	drivers/usb/musb/jz4740.o

File size before:
   text	   data	    bss	    dec	    hex	filename
   6151	    333	     16	   6500	   1964	drivers/usb/musb/sunxi.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   6215	    269	     16	   6500	   1964	drivers/usb/musb/sunxi.o

File size before:
   text	   data	    bss	    dec	    hex	filename
   3668	    864	      0	   4532	   11b4	drivers/usb/musb/ux500.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   3724	    808	      0	   4532	   11b4	drivers/usb/musb/ux500.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bhumika Goyal 2017-01-25 00:52:22 +05:30 committed by Greg Kroah-Hartman
parent 692665c621
commit 1e572aa568
3 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/musb/jz4740.c
View File

@ -63,7 +63,7 @@ static struct musb_fifo_cfg jz4740_musb_fifo_cfg[] = {
{ .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 64, },
};
static struct musb_hdrc_config jz4740_musb_config = {
static const struct musb_hdrc_config jz4740_musb_config = {
/* Silicon does not implement USB OTG. */
.multipoint = 0,
/* Max EPs scanned, driver will decide which EP can be used. */

2
drivers/usb/musb/sunxi.c
View File

@ -645,7 +645,7 @@ static struct musb_fifo_cfg sunxi_musb_mode_cfg[] = {
MUSB_EP_FIFO_SINGLE(5, FIFO_RX, 512),
};
static struct musb_hdrc_config sunxi_musb_hdrc_config = {
static const struct musb_hdrc_config sunxi_musb_hdrc_config = {
.fifo_cfg = sunxi_musb_mode_cfg,
.fifo_cfg_size = ARRAY_SIZE(sunxi_musb_mode_cfg),
.multipoint = true,

2
drivers/usb/musb/ux500.c
View File

@ -30,7 +30,7 @@
#include "musb_core.h"
static struct musb_hdrc_config ux500_musb_hdrc_config = {
static const struct musb_hdrc_config ux500_musb_hdrc_config = {
.multipoint = true,
.dyn_fifo = true,
.num_eps = 16,