On Tue, Feb 02, 2016 at 09:25:25PM +0100, Arnd Bergmann wrote: > On Monday 01 February 2016 18:07:45 Joao Pinto wrote: > > +static void synopsys_pcie_establish_link(struct pcie_port *pp) > > +{ > > + int retries = 0; > > + > > + /* check if the link is up or not */ > > + for (retries = 0; retries < 10; retries++) { > > + if (dw_pcie_link_up(pp)) { > > + dev_info(pp->dev, "Link up\n"); > > + return; > > + } > > + mdelay(100); > > + } > > +} > > That mdelay() needs to be an msleep(). You should never waste > a whole second worth of CPU time in a driver. There are six other copies of this code, and two of them (exynos and spear) have the same problem. Bjorn