[PATCH]: e1000 endianness bugs

Subsystems: networking drivers, the rest

STALE7513d

5 messages, 4 authors, 2006-03-17 · open the first message on its own page

[PATCH]: e1000 endianness bugs

From: "David S. Miller" <davem@davemloft.net>
Date: 2006-03-15 22:26:32

	return -E_NO_BIG_ENDIAN_TESTING;

[E1000]: Fix 4 missed endianness conversions on RX descriptor fields.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 5b7d0f4..1d91117 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -3710,7 +3710,7 @@ e1000_clean_rx_irq(struct e1000_adapter 
 		e1000_rx_checksum(adapter,
 				  (uint32_t)(status) |
 				  ((uint32_t)(rx_desc->errors) << 24),
-				  rx_desc->csum, skb);
+				  le16_to_cpu(rx_desc->csum), skb);
 
 		skb->protocol = eth_type_trans(skb, netdev);
 #ifdef CONFIG_E1000_NAPI
@@ -3854,11 +3854,11 @@ e1000_clean_rx_irq_ps(struct e1000_adapt
 		}
 
 		e1000_rx_checksum(adapter, staterr,
-				  rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);
+				  le16_to_cpu(rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
 		skb->protocol = eth_type_trans(skb, netdev);
 
 		if (likely(rx_desc->wb.upper.header_status &
-			  E1000_RXDPS_HDRSTAT_HDRSP))
+			   cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP)))
 			adapter->rx_hdr_split++;
 #ifdef CONFIG_E1000_NAPI
 		if (unlikely(adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))) {
@@ -3884,7 +3884,7 @@ e1000_clean_rx_irq_ps(struct e1000_adapt
 #endif
 
 next_desc:
-		rx_desc->wb.middle.status_error &= ~0xFF;
+		rx_desc->wb.middle.status_error &= cpu_to_le32(~0xFF);
 		buffer_info->skb = NULL;
 
 		/* return some buffers to hardware, one at a time is too slow */

Re: [PATCH]: e1000 endianness bugs

From: Jesse Brandeburg <hidden>
Date: 2006-03-15 23:33:46

On 3/15/06, David S. Miller [off-list ref] wrote:
        return -E_NO_BIG_ENDIAN_TESTING;

[E1000]: Fix 4 missed endianness conversions on RX descriptor fields.

Signed-off-by: David S. Miller <davem@davemloft.net>
Yep, those look like bugs to me, thanks and congratulations, you're
the first person to test our PCI Express adapters in a big endian
system (they haven't been available before, and we don't have one,
yet)

Acked-by: Jesse Brandeburg <redacted>

Re: [PATCH]: e1000 endianness bugs

From: "David S. Miller" <davem@davemloft.net>
Date: 2006-03-15 23:40:52

From: "Jesse Brandeburg" <redacted>
Date: Wed, 15 Mar 2006 15:33:43 -0800
Yep, those look like bugs to me, thanks and congratulations, you're
the first person to test our PCI Express adapters in a big endian
system (they haven't been available before, and we don't have one,
yet)
It was onboard a Niagara T2000 system.

Re: [PATCH]: e1000 endianness bugs

From: Christoph Hellwig <hch@infradead.org>
Date: 2006-03-16 07:31:44

On Wed, Mar 15, 2006 at 02:26:28PM -0800, David S. Miller wrote:
	return -E_NO_BIG_ENDIAN_TESTING;

[E1000]: Fix 4 missed endianness conversions on RX descriptor fields.
Could the e1000 maintainers please add endianess annotations so that
sparse will catch such things in the future?

Re: [PATCH]: e1000 endianness bugs

From: Jeff Garzik <hidden>
Date: 2006-03-17 00:18:00

David S. Miller wrote:
	return -E_NO_BIG_ENDIAN_TESTING;

[E1000]: Fix 4 missed endianness conversions on RX descriptor fields.

Signed-off-by: David S. Miller <davem@davemloft.net>
applied
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