The patch titled
Spidernet: Memory barrier
has been removed from the -mm tree. Its filename was
spidernet-memory-barrier.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Spidernet: Memory barrier
From: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Add memory barrier to make sure that the rest of the RX descriptor state is
flushed to memory before we tell the hardware that its ready to go.
Signed-off-by: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Cc: James K Lewis <jklewis@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/net/spider_net.c | 1 +
1 files changed, 1 insertion(+)
diff -puN drivers/net/spider_net.c~spidernet-memory-barrier drivers/net/spider_net.c
--- a/drivers/net/spider_net.c~spidernet-memory-barrier
+++ a/drivers/net/spider_net.c
@@ -419,6 +419,7 @@ spider_net_prepare_rx_descr(struct spide
card->spider_stats.rx_iommu_map_error++;
descr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
} else {
+ wmb();
descr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
SPIDER_NET_DMAC_NOINTR_COMPLETE;
}
_
Patches currently in -mm which might be from linas@xxxxxxxxxxxxxx are
git-netdev-all.patch
spidernet-rework-rx-linked-list.patch
-
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