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authorFrank Blaschka <frank.blaschka@de.ibm.com>2007-10-05 16:45:45 +0200
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-10 16:54:40 -0700
commit6570ebc4f57ad0761104f769576ae5652d9b8d64 (patch)
tree47c933e7ac978754504a26cd82204fc5b31c8e96 /drivers/s390/net/qeth_eddp.c
parentbc4b2b497aa61c79e3f3444237a4003a254ea565 (diff)
downloadlinux-6570ebc4f57ad0761104f769576ae5652d9b8d64.tar.gz
qeth: EDDP does not work on large MTUs
Fix filling the qdio buffers in EDDP mode.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/s390/net/qeth_eddp.c')
-rw-r--r--drivers/s390/net/qeth_eddp.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c
index 70108fb16906..e3c268cfbffe 100644
--- a/drivers/s390/net/qeth_eddp.c
+++ b/drivers/s390/net/qeth_eddp.c
@@ -159,13 +159,15 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,
 		buffer = buf->buffer;
 		/* fill one skb into buffer */
 		for (i = 0; i < ctx->elements_per_skb; ++i){
-			buffer->element[buf->next_element_to_fill].addr =
-				ctx->elements[element].addr;
-			buffer->element[buf->next_element_to_fill].length =
-				ctx->elements[element].length;
-			buffer->element[buf->next_element_to_fill].flags =
-				ctx->elements[element].flags;
-			buf->next_element_to_fill++;
+			if (ctx->elements[element].length != 0) {
+				buffer->element[buf->next_element_to_fill].
+				addr = ctx->elements[element].addr;
+				buffer->element[buf->next_element_to_fill].
+				length = ctx->elements[element].length;
+				buffer->element[buf->next_element_to_fill].
+				flags = ctx->elements[element].flags;
+				buf->next_element_to_fill++;
+			}
 			element++;
 			elements--;
 		}