Re: [PATCH 1/1] tty: serial: uartlite: allow 64 bit address

[Greg KH]

On Tue, Nov 23, 2021 at 10:45:06AM -0800, Lizhi Hou wrote:
> Fix the uartlite probe failure when it is mapped to address above 4G.

Fix it how?

> Signed-off-by: Lizhi Hou <lizhi.hou@xxxxxxxxxx>

What commit caused this problem?  What commit does this fix?  Should it
go to stable kernels?

> ---
>  drivers/tty/serial/uartlite.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
> index d3d9566e5dbd..e1fa52d31474 100644
> --- a/drivers/tty/serial/uartlite.c
> +++ b/drivers/tty/serial/uartlite.c
> @@ -626,7 +626,7 @@ static struct uart_driver ulite_uart_driver = {
>   *
>   * Returns: 0 on success, <0 otherwise
>   */
> -static int ulite_assign(struct device *dev, int id, u32 base, int irq,
> +static int ulite_assign(struct device *dev, int id, phys_addr_t base, int irq,
>  			struct uartlite_data *pdata)

So you changed the variable type which does what exactly here?

thanks,

greg k-h