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[PATCH] usb: storage: make const arrays static, reduces object code size

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

Don't populate const arrays on the stack, instead make them
static.  Makes the object code smaller by over 1070 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
   3505	    880	      0	   4385	   1121	drivers/usb/storage/option_ms.o

After:
   text	   data	    bss	    dec	    hex	filename
   2269	   1040	      0	   3309	    ced	drivers/usb/storage/option_ms.o

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

diff --git a/drivers/usb/storage/option_ms.c b/drivers/usb/storage/option_ms.c
index 57282f12317b..4a73cd4783ae 100644
--- a/drivers/usb/storage/option_ms.c
+++ b/drivers/usb/storage/option_ms.c
@@ -41,7 +41,7 @@ MODULE_PARM_DESC(option_zero_cd, "ZeroCD mode (1=Force Modem (default),"
 
 static int option_rezero(struct us_data *us)
 {
-	const unsigned char rezero_msg[] = {
+	static const unsigned char rezero_msg[] = {
 	  0x55, 0x53, 0x42, 0x43, 0x78, 0x56, 0x34, 0x12,
 	  0x01, 0x00, 0x00, 0x00, 0x80, 0x00, 0x06, 0x01,
 	  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -87,7 +87,7 @@ static int option_rezero(struct us_data *us)
 
 static int option_inquiry(struct us_data *us)
 {
-	const unsigned char inquiry_msg[] = {
+	static const unsigned char inquiry_msg[] = {
 	  0x55, 0x53, 0x42, 0x43, 0x12, 0x34, 0x56, 0x78,
 	  0x24, 0x00, 0x00, 0x00, 0x80, 0x00, 0x06, 0x12,
 	  0x00, 0x00, 0x00, 0x24, 0x00, 0x00, 0x00, 0x00,
-- 
2.14.1

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[PATCH] usb: storage: make const arrays static, reduces object code size Colin King <colin.king@canonical.com> - 2017-09-12 13:40 +0200
  Re: [PATCH] usb: storage: make const arrays static, reduces object  code size Alan Stern <stern@rowland.harvard.edu> - 2017-09-13 05:40 +0200

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