[PATCH] via-velocity: ordering of Rx descriptors operations

Force strict ordering of operations on Rx descriptors to avoid any issue related to inline optimization.

[PATCH] via-velocity: ordering of Rx descriptors operations
Force strict ordering of operations on Rx descriptors to avoid any issue related to inline optimization.
ed7e918b · François Romieu · Jeff Garzik · 3255eeec · ed7e918b
Commit ed7e918b authored Jun 21, 2004 by François Romieu Committed by Jeff Garzik Jun 21, 2004
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drivers/net/via-velocity.c drivers/net/via-velocity.c +2 -0

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--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -996,6 +996,8 @@ static inline void velocity_give_many_rx_descs(struct velocity_info *vptr)
 	if (vptr->rd_filled < 4)
 		return;

+	wmb();
+
 	unusable = vptr->rd_filled | 0x0003;
 	dirty = vptr->rd_dirty - unusable + 1;
 	for (avail = vptr->rd_filled & 0xfffc; avail; avail--) {