Re: [RFC PATCH v2 1/6] serial: uartps: Do not initialize field to zero again
From: Greg Kroah-Hartman
Date: Wed Jun 27 2018 - 19:48:48 EST
On Wed, Jun 27, 2018 at 04:19:46PM +0200, Michal Simek wrote:
> On 27.6.2018 12:09, Greg Kroah-Hartman wrote:
> > On Tue, Jun 19, 2018 at 10:09:05AM +0200, Michal Simek wrote:
> >> On 6.6.2018 14:41, Michal Simek wrote:
> >>> Writing zero and NULLs to already initialized fields is not needed.
> >>> Remove this additional writes.
> >>>
> >>> Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
> >>> ---
> >>>
> >>> Changes in v2:
> >>> - new patch - it can be sent separately too
> >>>
> >>> drivers/tty/serial/xilinx_uartps.c | 3 ---
> >>> 1 file changed, 3 deletions(-)
> >>>
> >>> diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
> >>> index 8a3e34234e98..5f116f3ecd4a 100644
> >>> --- a/drivers/tty/serial/xilinx_uartps.c
> >>> +++ b/drivers/tty/serial/xilinx_uartps.c
> >>> @@ -1510,15 +1510,12 @@ static int cdns_uart_probe(struct platform_device *pdev)
> >>>
> >>> /* At this point, we've got an empty uart_port struct, initialize it */
> >>> spin_lock_init(&port->lock);
> >>> - port->membase = NULL;
> >>> - port->irq = 0;
> >>> port->type = PORT_UNKNOWN;
> >>> port->iotype = UPIO_MEM32;
> >>> port->flags = UPF_BOOT_AUTOCONF;
> >>> port->ops = &cdns_uart_ops;
> >>> port->fifosize = CDNS_UART_FIFO_SIZE;
> >>> port->line = id;
> >>> - port->dev = NULL;
> >>>
> >>> /*
> >>> * Register the port.
> >>>
> >>
> >> Alan, Rob, Greg: Any comment about this RFC?
> >
> > I rarely review RFC patchesets as obviously you don't think it is good
> > enough to be submitted "for real" :)
>
> There is one missing minor part but I want to review concept first
> because I didn't find any driver which is using this style.
>
> > If you think this is all good, great, please resend it without the RFC
> > and it will end up in my queue.
>
> I will definitely do it but please look at the concept itself because I
> would like to use this with at least 3 other drivers.
I don't have the time right now to review "concepts", sorry.
greg k-h