linux-kernel - Re: [PATCH v10] PCI: Xilinx-NWL-PCIe: Added support for Xilinx NWL PCIe Host Controller

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Date:	Fri, 27 Nov 2015 16:51:38 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>,
	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	michals@...inx.com, sorenb@...inx.com, bhelgaas@...gle.com,
	tinamdar@....com, treding@...dia.com, rjui@...adcom.com,
	Minghuan.Lian@...escale.com, m-karicheri2@...com, hauke@...ke-m.de,
	marc.zyngier@....com, dhdang@....com, sbranden@...adcom.com,
	devicetree@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Bharat Kumar Gogada <bharatku@...inx.com>,
	Ravi Kiran Gummaluri <rgummal@...inx.com>
Subject: Re: [PATCH v10] PCI: Xilinx-NWL-PCIe: Added support for Xilinx NWL PCIe Host Controller

On Friday 27 November 2015 20:32:03 Bharat Kumar Gogada wrote:
> +       do {
> +               err = nwl_pcie_link_up(pcie, PHY_RDY_LINKUP);
> +               if (err != 1) {
> +                       check_link_up++;
> +                       if (check_link_up > LINKUP_ITER_CHECK)
> +                               return -ENODEV;
> +                       mdelay(1000);
> +               }
> +       } while (!err);

mdelay(1000) is not something anyone should do. Why can't you call
a sleeping function here?

	Arnd
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