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46 lines
1.6 KiB
Diff
46 lines
1.6 KiB
Diff
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From f872b237c1750221932e715da2552225afe4a95c Mon Sep 17 00:00:00 2001
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From: Jason Wang <jasowang@redhat.com>
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Date: Fri, 30 Dec 2011 23:44:42 +0000
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Subject: [PATCH] 8139cp: properly config rx mode after resuming
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Rx mode should be reset after resming, so unconditionally updating rx
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mode rather than conditionally updating based on the value we
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remembered, otherwise unexpected value may be used by the nic after
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resuming.
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btw. I find and test this when debugging guest hibernation in qemu, as
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I did not have a 8139cp card in hand, this patch is untested in a
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physical 8139cp card, plase review it carefully.
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Signed-off-by: Jason Wang <jasowang@redhat.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/realtek/8139cp.c | 9 +++------
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1 files changed, 3 insertions(+), 6 deletions(-)
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--- a/drivers/net/ethernet/realtek/8139cp.c
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+++ b/drivers/net/ethernet/realtek/8139cp.c
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@@ -860,7 +860,6 @@ static void __cp_set_rx_mode (struct net
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struct cp_private *cp = netdev_priv(dev);
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u32 mc_filter[2]; /* Multicast hash filter */
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int rx_mode;
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- u32 tmp;
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/* Note: do not reorder, GCC is clever about common statements. */
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if (dev->flags & IFF_PROMISC) {
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@@ -887,11 +886,9 @@ static void __cp_set_rx_mode (struct net
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}
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/* We can safely update without stopping the chip. */
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- tmp = cp_rx_config | rx_mode;
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- if (cp->rx_config != tmp) {
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- cpw32_f (RxConfig, tmp);
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- cp->rx_config = tmp;
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- }
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+ cp->rx_config = cp_rx_config | rx_mode;
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+ cpw32_f(RxConfig, cp->rx_config);
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+
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cpw32_f (MAR0 + 0, mc_filter[0]);
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cpw32_f (MAR0 + 4, mc_filter[1]);
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}
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