Spidernet add net_ratelimit to suppress long output

This patch adds net_ratelimit to many of the printks in order to
limit extraneous warning messages (created in response to Bug 28554).
This patch supercedes all previous ratelimit patches.
This has been tested, please apply.

From: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: James K Lewis <jklewis@us.ibm.com>
Signed-off-by: Linas Vepstas <jlinas@austin.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/spider_net.c

@@ -1038,11 +1038,10 @@ spider_net_decode_one_descr(struct spider_net_card *card, int napi)
 
 	if ( (status != SPIDER_NET_DESCR_COMPLETE) &&
 	     (status != SPIDER_NET_DESCR_FRAME_END) ) {
-		if (netif_msg_rx_err(card)) {
+		if (netif_msg_rx_err(card))
 			pr_err("%s: RX descriptor with state %d\n",
 			       card->netdev->name, status);
 		card->spider_stats.rx_desc_unk_state++;
-		}
 		goto refill;
 	}
 
@@ -1361,7 +1360,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
 	case SPIDER_NET_GRFAFLLINT: /* fallthrough */
 	case SPIDER_NET_GRMFLLINT:
 		if (netif_msg_intr(card) && net_ratelimit())
-			pr_debug("Spider RX RAM full, incoming packets "
+			pr_err("Spider RX RAM full, incoming packets "
 			       "might be discarded!\n");
 		spider_net_rx_irq_off(card);
 		tasklet_schedule(&card->rxram_full_tl);
@@ -1379,7 +1378,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
 	case SPIDER_NET_GDCDCEINT: /* fallthrough */
 	case SPIDER_NET_GDBDCEINT: /* fallthrough */
 	case SPIDER_NET_GDADCEINT:
-		if (netif_msg_intr(card))
+		if (netif_msg_intr(card) && net_ratelimit())
 			pr_err("got descriptor chain end interrupt, "
 			       "restarting DMAC %c.\n",
 			       'D'-(i-SPIDER_NET_GDDDCEINT)/3);
@@ -1450,7 +1449,7 @@ spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg)
 			break;
 	}
 
-	if ((show_error) && (netif_msg_intr(card)))
+	if ((show_error) && (netif_msg_intr(card)) && net_ratelimit())
 		pr_err("Got error interrupt on %s, GHIINT0STS = 0x%08x, "
 		       "GHIINT1STS = 0x%08x, GHIINT2STS = 0x%08x\n",
 		       card->netdev->name,

drivers/net/spider_net.h

@@ -24,7 +24,7 @@
 #ifndef _SPIDER_NET_H
 #define _SPIDER_NET_H
 
-#define VERSION "1.6 A"
+#define VERSION "1.6 B"
 
 #include "sungem_phy.h"