libata: make static arrays const, reduces object code size

Don't populate const arrayis on the stack, instead make them static.
Makes the object code smaller by over 260 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  64864	   5948	   4128	  74940	  124bc	drivers/ata/libata-scsi.o

After:
   text	   data	    bss	    dec	    hex	filename
  64183	   6364	   4128	  74675	  123b3	drivers/ata/libata-scsi.o

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 673e72f..66be961 100644 (file)
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -2146,7 +2146,7 @@ static void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
  */
 static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
 {
-       const u8 versions[] = {
+       static const u8 versions[] = {
                0x00,
                0x60,   /* SAM-3 (no version claimed) */
 
@@ -2156,7 +2156,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
                0x03,
                0x00    /* SPC-3 (no version claimed) */
        };
-       const u8 versions_zbc[] = {
+       static const u8 versions_zbc[] = {
                0x00,
                0xA0,   /* SAM-5 (no version claimed) */
 
@@ -2228,7 +2228,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
 static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf)
 {
        int num_pages;
-       const u8 pages[] = {
+       static const u8 pages[] = {
                0x00,   /* page 0x00, this page */
                0x80,   /* page 0x80, unit serial no page */
                0x83,   /* page 0x83, device ident page */
@@ -2259,7 +2259,7 @@ static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf)
  */
 static unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf)
 {
-       const u8 hdr[] = {
+       static const u8 hdr[] = {
                0,
                0x80,                   /* this page code */
                0,
@@ -2581,7 +2581,7 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
 {
        struct ata_device *dev = args->dev;
        u8 *scsicmd = args->cmd->cmnd, *p = rbuf;
-       const u8 sat_blk_desc[] = {
+       static const u8 sat_blk_desc[] = {
                0, 0, 0, 0,     /* number of blocks: sat unspecified */
                0,
                0, 0x2, 0x0     /* block length: 512 bytes */