linux-kernel - Re: [PATCH v1 03/13] serial: 8250_exar: Kill CTI_PCI

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Date: Thu, 2 May 2024 18:29:05 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Parker Newman <parker@...est.io>
Cc: Parker Newman <pnewman@...necttech.com>, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>
Subject: Re: [PATCH v1 03/13] serial: 8250_exar: Kill CTI_PCI_DEVICE()

On Thu, May 02, 2024 at 11:13:14AM -0400, Parker Newman wrote:
> On Thu,  2 May 2024 17:43:57 +0300
> Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:

> > The CTI_PCI_DEVICE() duplicates EXAR_DEVICE(). Kill the former.

..

> > -// For Connect Tech cards with Connect Tech vendor/device PCI IDs (FPGA based)
> > -#define CTI_PCI_DEVICE(devid, bd) {                     \
> > -	PCI_DEVICE_SUB(                                 \
> > -		PCI_VENDOR_ID_CONNECT_TECH,             \
> > -		PCI_DEVICE_ID_CONNECT_TECH_PCI_##devid, \


#define PCI_DEVICE_SUB(vend, dev, subvend, subdev) \
        .vendor = (vend), .device = (dev), \
        .subvendor = (subvend), .subdevice = (subdev)

#define PCI_DEVICE_DATA(vend, dev, data) \
        .vendor = PCI_VENDOR_ID_##vend, .device = PCI_DEVICE_ID_##vend##_##dev, \
        .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, 0, 0, \
        .driver_data = (kernel_ulong_t)(data)


> > -		PCI_ANY_ID,                             \
> > -		PCI_ANY_ID), 0, 0,                      \
> > -		(kernel_ulong_t)&bd                     \
> > -	}
> > -
> >  #define EXAR_DEVICE(vend, devid, bd) { PCI_DEVICE_DATA(vend, devid, &bd) }

> This is not correct. The CTI_PCI_DEVICE() macro is for cards that have the
> Connect Tech PCI Vendor ID (not Sub-Vendor ID). EXAR_DEVICE() is for cards with
> Exar PCI Vendor ID.

Above I added current code of these macros, can you elaborate how it's incorrect?

-- 
With Best Regards,
Andy Shevchenko