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authorOlof Johansson <olof@lixom.net>2007-08-22 18:13:11 +0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-10-11 03:50:58 +0400
commit021fa22e01d3d0425d3d15df48f523b69a3a11c4 (patch)
tree6526993ff713b963d5c95acc9775f49dd135ff41 /drivers/net/pasemi_mac.h
parent02df6cfa09c2ccebe685bfd54a708e1f50b00a81 (diff)
downloadlinux-021fa22e01d3d0425d3d15df48f523b69a3a11c4.tar.xz
pasemi_mac: Fix TX ring wrap checking
The old logic didn't detect full (tx) ring cases properly, causing overruns and general badness. Clean it up a bit and abstract out the ring size checks, always making sure to leave 1 slot open. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/pasemi_mac.h')
-rw-r--r--drivers/net/pasemi_mac.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/pasemi_mac.h b/drivers/net/pasemi_mac.h
index fbbc17a31db7..c5b0adbc182e 100644
--- a/drivers/net/pasemi_mac.h
+++ b/drivers/net/pasemi_mac.h
@@ -31,7 +31,7 @@ struct pasemi_mac_txring {
struct pas_dma_xct_descr *desc;
dma_addr_t dma;
unsigned int size;
- unsigned int next_to_use;
+ unsigned int next_to_fill;
unsigned int next_to_clean;
struct pasemi_mac_buffer *desc_info;
char irq_name[10]; /* "eth%d tx" */