Re: [PATCH] PCI/VPD: Add Realtek 8126 to VPD blacklist

[Manivannan Sadhasivam]

On Fri, May 22, 2026 at 07:41:34PM +0800, Hans Zhang wrote:
> The Realtek 8126 Ethernet controller advertises VPD capability but
> returns invalid data when VPD is read, leading to kernel messages
> like:
> 
>   r8169 ... invalid VPD tag 0x00 (size 0) at offset 0; assume
>   missing optional EEPROM
> 
> and pcilib reporting "sysfs_read_vpd: read failed: No such device".
> 
> Add the device to the VPD blacklist to suppress these errors.
> 
> Signed-off-by: Hans Zhang <18255117159@xxxxxxx>

Reviewed-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>

- Mani

> ---
>  drivers/pci/vpd.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c
> index 153394a652d3..fbc34cd842ac 100644
> --- a/drivers/pci/vpd.c
> +++ b/drivers/pci/vpd.c
> @@ -590,6 +590,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_LSI_LOGIC, 0x002f, quirk_blacklist_vpd);
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_LSI_LOGIC, 0x005d, quirk_blacklist_vpd);
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_LSI_LOGIC, 0x005f, quirk_blacklist_vpd);
>  DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATTANSIC, PCI_ANY_ID, quirk_blacklist_vpd);
> +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8126, quirk_blacklist_vpd);
>  /*
>   * The Amazon Annapurna Labs 0x0031 device id is reused for other non Root Port
>   * device types, so the quirk is registered for the PCI_CLASS_BRIDGE_PCI class.
> -- 
> 2.43.0
> 
> 

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