Re: [PATCH] serial: 8250_pci: fix -Winitializer-overrides for Brainboxes UC-260/271/701/756 entries
From: Greg Kroah-Hartman
Date: Tue Jul 07 2026 - 11:35:41 EST
On Thu, May 28, 2026 at 01:12:50PM -0700, Rosen Penev wrote:
> PCI_VDEVICE() expands to set .class=0 and .class_mask=0, but the Brainboxes
> UC-260/271/701/756 entries immediately override those fields. This causes
> a build error with clang -Werror,-Winitializer-overrides.
>
> Fix by expanding PCI_VDEVICE() manually, omitting the trailing
> .class/.class_mask zeroes so each field is set exactly once.
>
> Found with W=1
>
> Assisted-by: Opencode:Big-pickle
> Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
> ---
> drivers/tty/serial/8250/8250_pci.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
> index 3e5bc9e8d269..0513f4b3c093 100644
> --- a/drivers/tty/serial/8250/8250_pci.c
> +++ b/drivers/tty/serial/8250/8250_pci.c
> @@ -5394,12 +5394,14 @@ static const struct pci_device_id serial_pci_tbl[] = {
> * Brainboxes UC-260/271/701/756
> */
> {
> - PCI_VDEVICE(INTASHIELD, 0x0D21),
> + .vendor = PCI_VENDOR_ID_INTASHIELD, .device = 0x0D21,
> + .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID,
> .class = PCI_CLASS_COMMUNICATION_MULTISERIAL << 8,
> .class_mask = 0xffff00,
> .driver_data = pbn_b2_4_115200,
> }, {
> - PCI_VDEVICE(INTASHIELD, 0x0E34),
> + .vendor = PCI_VENDOR_ID_INTASHIELD, .device = 0x0E34,
> + .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID,
> .class = PCI_CLASS_COMMUNICATION_MULTISERIAL << 8,
> .class_mask = 0xffff00,
> .driver_data = pbn_b2_4_115200,
> --
> 2.54.0
>
Does not apply to the current tree :(