On Mon, Sep 02, 2013 at 11:00:28AM +0200, Alexander Gordeev wrote: > + if (hpriv->flags & AHCI_HFLAG_NO_MSI) > + goto intx; > + > + rc = pci_enable_msi_block_part(pdev, n_ports, AHCI_MAX_PORTS); > + if (!rc) > + return AHCI_MAX_PORTS; > + if (rc < 0) > + goto intx; > + > + maxvec = rc; > + rc = pci_enable_msi_block_part(pdev, n_ports, maxvec); > + if (!rc) > + return maxvec; > + if (rc < 0) > + goto intx;
Why is the above fallback necessary? The only other number which makes sense is roundup_pow_of_two(n_ports), right? What does the above fallback logic buy us? Thanks. -- tejun -- 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/
