On Fri, Aug 16, 2013 at 11:09:12PM +0530, Kumar Gaurav wrote: > Hi Sarah, > > I was just reading through xhci driver's code and found something > which i'm unable to understand use of. > Please help me understanding them > > 1.use of struct xhci_hcd in function xhci_readl > function definition doesn't uses this type of argument > static inline unsigned int xhci_readl(const struct xhci_hcd *xhci,__le32 __iomem *regs) > { > return readl(regs); > } The function used to print when registers were read, and thus needed the xhci_hcd argument. It's no longer used, so if you want to submit a patch to remove that argument, I would take it. Please look at Documentation/SubmittingPatches if you've never submitted a Linux kernel patch before. Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html