| Message ID | fe732c2c-a473-9088-3974-df83cfbd6efd@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [net] r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set | expand |
Hello: This patch was applied to netdev/net.git (refs/heads/master): On Mon, 1 Feb 2021 21:50:56 +0100 you wrote: > So far phy_disconnect() is called before free_irq(). If CONFIG_DEBUG_SHIRQ > is set and interrupt is shared, then free_irq() creates an "artificial" > interrupt by calling the interrupt handler. The "link change" flag is set > in the interrupt status register, causing phylib to eventually call > phy_suspend(). Because the net_device is detached from the PHY already, > the PHY driver can't recognize that WoL is configured and powers down the > PHY. > > [...] Here is the summary with links: - [net] r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set https://git.kernel.org/netdev/net/c/cc9f07a838c4 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 4253d51a9..53c2079c7 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -4667,10 +4667,10 @@ static int rtl8169_close(struct net_device *dev) cancel_work_sync(&tp->wk.work); - phy_disconnect(tp->phydev); - free_irq(pci_irq_vector(pdev, 0), tp); + phy_disconnect(tp->phydev); + dma_free_coherent(&pdev->dev, R8169_RX_RING_BYTES, tp->RxDescArray, tp->RxPhyAddr); dma_free_coherent(&pdev->dev, R8169_TX_RING_BYTES, tp->TxDescArray,
So far phy_disconnect() is called before free_irq(). If CONFIG_DEBUG_SHIRQ is set and interrupt is shared, then free_irq() creates an "artificial" interrupt by calling the interrupt handler. The "link change" flag is set in the interrupt status register, causing phylib to eventually call phy_suspend(). Because the net_device is detached from the PHY already, the PHY driver can't recognize that WoL is configured and powers down the PHY. Fixes: f1e911d5d0df ("r8169: add basic phylib support") Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> --- drivers/net/ethernet/realtek/r8169_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)