ata: Convert ata_<foo>_printk(KERN_<LEVEL> to ata_<foo>_<level>

Saves text by removing nearly duplicated text format strings by
creating ata_<foo>_printk functions and printf extension %pV.

ata defconfig size shrinks ~5% (~8KB), allyesconfig ~2.5% (~13KB)

Format string duplication comes from:

 #define ata_link_printk(link, lv, fmt, args...) do { \
       if (sata_pmp_attached((link)->ap) || (link)->ap->slave_link)    \
               printk("%sata%u.%02u: "fmt, lv, (link)->ap->print_id,   \
                      (link)->pmp , ##args); \
       else \
               printk("%sata%u: "fmt, lv, (link)->ap->print_id , ##args); \
       } while(0)

Coalesce long formats.

$ size drivers/ata/built-in.*
   text	   data	    bss	    dec	    hex	filename
 544969	  73893	 116584	 735446	  b38d6	drivers/ata/built-in.allyesconfig.ata.o
 558429	  73893	 117864	 750186	  b726a	drivers/ata/built-in.allyesconfig.dev_level.o
 141328	  14689	   4220	 160237	  271ed	drivers/ata/built-in.defconfig.ata.o
 149567	  14689	   4220	 168476	  2921c	drivers/ata/built-in.defconfig.dev_level.o

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 39761f5..c102d7d 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -286,10 +286,10 @@
 	/* the count should not be larger than PAGE_SIZE */
 	if (count > PAGE_SIZE) {
 		if (printk_ratelimit())
-			ata_port_printk(ap, KERN_WARNING,
-					"EM read buffer size too large: "
-					"buffer size %u, page size %lu\n",
-					hpriv->em_buf_sz, PAGE_SIZE);
+			ata_port_warn(ap,
+				      "EM read buffer size too large: "
+				      "buffer size %u, page size %lu\n",
+				      hpriv->em_buf_sz, PAGE_SIZE);
 		count = PAGE_SIZE;
 	}
 
@@ -1124,8 +1124,8 @@
 
 	if (hpriv->flags & AHCI_HFLAG_SECT255) {
 		dev->max_sectors = 255;
-		ata_dev_printk(dev, KERN_INFO,
-			       "SB600 AHCI: limiting to 255 sectors per cmd\n");
+		ata_dev_info(dev,
+			     "SB600 AHCI: limiting to 255 sectors per cmd\n");
 	}
 }
 
@@ -1249,8 +1249,7 @@
 	/* prepare for SRST (AHCI-1.1 10.4.1) */
 	rc = ahci_kick_engine(ap);
 	if (rc && rc != -EOPNOTSUPP)
-		ata_link_printk(link, KERN_WARNING,
-				"failed to reset engine (errno=%d)\n", rc);
+		ata_link_warn(link, "failed to reset engine (errno=%d)\n", rc);
 
 	ata_tf_init(link->device, &tf);
 
@@ -1283,8 +1282,7 @@
 		 * be trusted.  Treat device readiness timeout as link
 		 * offline.
 		 */
-		ata_link_printk(link, KERN_INFO,
-				"device not ready, treating as offline\n");
+		ata_link_info(link, "device not ready, treating as offline\n");
 		*class = ATA_DEV_NONE;
 	} else if (rc) {
 		/* link occupied, -ENODEV too is an error */
@@ -1297,7 +1295,7 @@
 	return 0;
 
  fail:
-	ata_link_printk(link, KERN_ERR, "softreset failed (%s)\n", reason);
+	ata_link_err(link, "softreset failed (%s)\n", reason);
 	return rc;
 }
 
@@ -1966,7 +1964,7 @@
 	if (rc == 0)
 		ahci_power_down(ap);
 	else {
-		ata_port_printk(ap, KERN_ERR, "%s (%d)\n", emsg, rc);
+		ata_port_err(ap, "%s (%d)\n", emsg, rc);
 		ahci_start_port(ap);
 	}
 
@@ -2061,7 +2059,7 @@
 	/* de-initialize port */
 	rc = ahci_deinit_port(ap, &emsg);
 	if (rc)
-		ata_port_printk(ap, KERN_WARNING, "%s (%d)\n", emsg, rc);
+		ata_port_warn(ap, "%s (%d)\n", emsg, rc);
 }
 
 void ahci_print_info(struct ata_host *host, const char *scc_s)