4.4-stable review patch. If anyone has any objections, please let me know.
------------------ From: Srinivas Kandagatla <[email protected]> commit 2fd0f46cb1b82587c7ae4a616d69057fb9bd0af7 upstream. In usecases where force_port_map is used saved_port_map is never set, resulting in not programming the PORTS_IMPL register as part of initial config. This patch fixes this by setting it to port_map even in case where force_port_map is used, making it more inline with other parts of the code. Fixes: 566d1827df2e ("libata: disable forced PORTS_IMPL for >= AHCI 1.3") Signed-off-by: Srinivas Kandagatla <[email protected]> Acked-by: Tejun Heo <[email protected]> Reviewed-by: Andy Gross <[email protected]> Signed-off-by: Tejun Heo <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/ata/libahci.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -467,6 +467,7 @@ void ahci_save_initial_config(struct dev dev_info(dev, "forcing port_map 0x%x -> 0x%x\n", port_map, hpriv->force_port_map); port_map = hpriv->force_port_map; + hpriv->saved_port_map = port_map; } if (hpriv->mask_port_map) {
