linux-kernel - Re: [PATCH 1/4] tty: serial: 8250: Cleanup MOXA configurations in 8250

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Message-ID: <ZRvAG5336KxuugVd@moxa-ThinkCentre-M90t>
Date:   Tue, 3 Oct 2023 15:17:47 +0800
From:   Crescent CY Hsieh <crescentcy.hsieh@...a.com>
To:     Jiri Slaby <jirislaby@...nel.org>
Cc:     gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        linux-serial@...r.kernel.org
Subject: Re: [PATCH 1/4] tty: serial: 8250: Cleanup MOXA configurations in
 8250_pci.c

On Mon, Oct 02, 2023 at 08:51:03AM +0200, Jiri Slaby wrote:
> On 02. 10. 23, 3:56, Crescent CY Hsieh wrote:
> > @@ -1958,6 +1958,9 @@ pci_moxa_setup(struct serial_private *priv,
> >   #define PCIE_DEVICE_ID_WCH_CH384_8S	0x3853
> >   #define PCIE_DEVICE_ID_WCH_CH382_2S	0x3253
> > +/* MOXA */
> > +#define PCI_VENDOR_ID_MOXA	0x1393
> 
> Isn't this a redefinition of the pci-ids.h one?

At first, I attempt to place DEVICE_ID macros into pci_ids.h to enable
their usage throughout 8250_pci.c and to establish centralized
management. However, I notice the comment in pci_ids.h which is:

'Do not add new entries to this file unless the definitions are shared
between multiple drivers'

So I add this VENDOR_ID just for the clarity, even though it results in
duplication.

Should I put these macros into pci_ids.h? If so, I am willing to help
relocate all other macros.

---
Sincerely,
Crescent CY Hsieh