Re: [PATCH v3 1/7] tty: 8250: Fix IS-200 PCI ID comment

From: Cameron Williams
Date: Mon Oct 16 2023 - 03:30:00 EST


On Mon, Oct 16, 2023 at 07:37:43AM +0200, Jiri Slaby wrote:
Hi Jiri
> On 15. 10. 23, 19:10, Cameron Williams wrote:
> > Fix the PCI comment for the IS-200 card. The PCI ID for the IS-200
> > is 0x0d80, and the definition used (PCI_DEVICE_ID_INTASHIELD_IS200)
> > is indeed 0x0d80, clarify that by fixing the comment as its
> > neighbouring cards are all at 0x0020 offsets.
>
> The real question is why to maintain a comment here at all? I suggest
> dropping them both instead.
>
I try to avoid touching other people's code unless it's wrong as is the
case here. I could remove them both but since they both (IS-200 and IS-400)
refer to the definition in pci_ids.h, and the rest of the cards use the raw
hex IDs instead, its more consistent to have them all showing the card ID in
one way or another, IMHO.
> > Signed-off-by: Cameron Williams <cang1@xxxxxxxxxx>
> > ---
> > v2 - v3:
> > Clarify commit message with better explanation of the change.
> > Re-submit patch series using git send-email to make threading work.
> >
> > v1 - v2:
> > This is a resubmission series for the patch series below. That series
> > was lots of changes sent to lots of maintainers, this series is just for
> > the tty/serial/8250 subsystem.
> >
> > [1] https://lore.kernel.org/all/DU0PR02MB789950E64D808DB57E9D7312C4F8A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> > [2] https://lore.kernel.org/all/DU0PR02MB7899DE53DFC900EFB50E53F2C4F8A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> > [3] https://lore.kernel.org/all/DU0PR02MB7899033E7E81EAF3694BC20AC4F8A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> > [4] https://lore.kernel.org/all/DU0PR02MB7899EABA8C3DCAC94DCC79D4C4F8A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> >
> > drivers/tty/serial/8250/8250_pci.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
> > index 62a9bd30b4db..ecb4e9acc70d 100644
> > --- a/drivers/tty/serial/8250/8250_pci.c
> > +++ b/drivers/tty/serial/8250/8250_pci.c
> > @@ -4917,7 +4917,7 @@ static const struct pci_device_id serial_pci_tbl[] = {
> > * IntaShield IS-200
> > */
> > { PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS200,
> > - PCI_ANY_ID, PCI_ANY_ID, 0, 0, /* 135a.0811 */
> > + PCI_ANY_ID, PCI_ANY_ID, 0, 0, /* 135a.0d80 */
> > pbn_b2_2_115200 },
> > /*
> > * IntaShield IS-400
>
> thanks,
> --
> js
> suse labs
>