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From b8d8821cfa8aa53aa29c0b230330afcd79ee7f60 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Sun, 1 Jan 2017 15:54:55 +0100
Subject: [PATCH 21/32] ivshmem-net: Fix stuck state machine during setup
If the remote side is already in INIT state (or even higher) and has a
cached rstate of RESET, we won't make progress when signaling RESET
again because the remote side won't send a state update. Fix this by
enforcing a local check after probe completion.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
drivers/net/ivshmem-net.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ivshmem-net.c b/drivers/net/ivshmem-net.c
index c52727ef40c1..9f307ec4d677 100644
--- a/drivers/net/ivshmem-net.c
+++ b/drivers/net/ivshmem-net.c
@@ -911,6 +911,7 @@ static int ivshm_net_probe(struct pci_dev *pdev,
writel(IVSHMEM_INTX_ENABLE, &in->ivshm_regs->intxctrl);
writel(IVSHM_NET_STATE_RESET, &in->ivshm_regs->lstate);
+ ivshm_net_check_state(ndev);
return 0;
--
2.11.0
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