27c9d80f51
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18 lines
712 B
Diff
18 lines
712 B
Diff
When the Ethernet controller is powered down and someone wants to
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access the mdio bus like the witch driver (b53) the system crashed if
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PCI_D3hot was set before. This patch deactivates this power sawing mode
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when a switch driver is in use.
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--- a/drivers/net/ethernet/broadcom/tg3.c
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+++ b/drivers/net/ethernet/broadcom/tg3.c
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@@ -4269,7 +4269,8 @@ static int tg3_power_down_prepare(struct
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static void tg3_power_down(struct tg3 *tp)
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{
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pci_wake_from_d3(tp->pdev, tg3_flag(tp, WOL_ENABLE));
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- pci_set_power_state(tp->pdev, PCI_D3hot);
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+ if (!tg3_flag(tp, ROBOSWITCH))
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+ pci_set_power_state(tp->pdev, PCI_D3hot);
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}
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static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u32 *speed, u8 *duplex)
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