[PATCH] libata: implement ATA_EHI_PRINTINFO

Implement ehi flag ATA_EHI_PRINTINFO.  This flag is set when device
configuration needs to print out device info.  This used to be handled
by @print_info argument to ata_dev_configure() but LLDs also need to
know about it in ->dev_config() callback.

This patch replaces @print_info w/ ATA_EHI_PRINTINFO and make sata_sil
print workaround messages only on the initial configuration.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index ca8d993..f844a1f 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -534,6 +534,7 @@
  */
 static void sil_dev_config(struct ata_port *ap, struct ata_device *dev)
 {
+	int print_info = ap->eh_context.i.flags & ATA_EHI_PRINTINFO;
 	unsigned int n, quirks = 0;
 	unsigned char model_num[41];
 
@@ -549,16 +550,18 @@
 	if (slow_down ||
 	    ((ap->flags & SIL_FLAG_MOD15WRITE) &&
 	     (quirks & SIL_QUIRK_MOD15WRITE))) {
-		ata_dev_printk(dev, KERN_INFO, "applying Seagate errata fix "
-			       "(mod15write workaround)\n");
+		if (print_info)
+			ata_dev_printk(dev, KERN_INFO, "applying Seagate "
+				       "errata fix (mod15write workaround)\n");
 		dev->max_sectors = 15;
 		return;
 	}
 
 	/* limit to udma5 */
 	if (quirks & SIL_QUIRK_UDMA5MAX) {
-		ata_dev_printk(dev, KERN_INFO,
-			       "applying Maxtor errata fix %s\n", model_num);
+		if (print_info)
+			ata_dev_printk(dev, KERN_INFO, "applying Maxtor "
+				       "errata fix %s\n", model_num);
 		dev->udma_mask &= ATA_UDMA5;
 		return;
 	}