linux-kernel - Re: [PATCH V2 1/2] serial/8250: Add support for NI-Serial PXI/PXIe+485 devices

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Date:   Wed, 3 Jul 2019 17:59:41 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     "Enrico Weigelt, metux IT consult" <lkml@...ux.net>
Cc:     jeyentam <je.yen.tam@...com>, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 1/2] serial/8250: Add support for NI-Serial
 PXI/PXIe+485 devices

On Wed, Jul 03, 2019 at 05:41:25PM +0200, Enrico Weigelt, metux IT consult wrote:
> On 03.07.19 16:47, Greg KH wrote:
> > On Wed, Jul 03, 2019 at 03:27:11PM +0200, Enrico Weigelt, metux IT consult wrote:
> >>>  /* UART Port Control Register */> -#define NI8430_PORTCON	0x0f> -#define NI8430_PORTCON_TXVR_ENABLE	(1 << 3)
> >> Can we have that renaming as a separate patch, to ease review ?
> >>
> >> And what about introducing a config sym for the new device specific
> >> stuff ? These devices seem to be pretty rare - never seen them in
> >> embeded world, where we do need to care of kernel size.
> > 
> > No, that's not the way this driver works, sorry.
> 
> That's sad, because in embedded world we often have to care about
> code size, so making those devices optional would be of great help.

Really?  are you sure?  Try it and see what you really end up saving.

greg k-h