If additional PCIe switch get connected between the host and the NIC,the kernel crashes with "BUG: scheduling while atomic". To handle this we need to call mdelay() instead of usleep_range().
For more detail please refer bugzilla.kernel.org, Bug 100031 Signed-off-by: Sanjeev Sharma <[email protected]> Signed-off-by: David Mueller <[email protected]> --- drivers/pci/host/pci-imx6.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c index 233a196..9769b13 100644 --- a/drivers/pci/host/pci-imx6.c +++ b/drivers/pci/host/pci-imx6.c @@ -499,7 +499,7 @@ static int imx6_pcie_link_up(struct pcie_port *pp) * Wait a little bit, then re-check if the link finished * the training. */ - usleep_range(1000, 2000); + mdelay(1000); } /* * From L0, initiate MAC entry to gen2 if EP/RC supports gen2. -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
