From 870f531e178e147e6eb48185abf16d21f3d8ca4c Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Sun, 1 Nov 2020 23:30:44 +0100 Subject: r8169: set IRQF_NO_THREAD if MSI(X) is enabled We had to remove flag IRQF_NO_THREAD because it conflicts with shared interrupts in case legacy interrupts are used. Following up on the linked discussion set IRQF_NO_THREAD if MSI or MSI-X is used, because both guarantee that interrupt won't be shared. Signed-off-by: Heiner Kallweit Link: https://www.spinics.net/lists/netdev/msg695341.html Link: https://lore.kernel.org/r/446cf5b8-dddd-197f-cb96-66783141ade4@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/realtek/r8169_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet/realtek/r8169_main.c') diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index e08c514789cf..7e0947e29d51 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -4690,6 +4690,7 @@ static int rtl_open(struct net_device *dev) { struct rtl8169_private *tp = netdev_priv(dev); struct pci_dev *pdev = tp->pci_dev; + unsigned long irqflags; int retval = -ENOMEM; pm_runtime_get_sync(&pdev->dev); @@ -4714,8 +4715,9 @@ static int rtl_open(struct net_device *dev) rtl_request_firmware(tp); + irqflags = pci_dev_msi_enabled(pdev) ? IRQF_NO_THREAD : IRQF_SHARED; retval = request_irq(pci_irq_vector(pdev, 0), rtl8169_interrupt, - IRQF_SHARED, dev->name, tp); + irqflags, dev->name, tp); if (retval < 0) goto err_release_fw_2; -- cgit v1.2.3