On Thu, Apr 01, 2021 at 02:03:49PM +0200, Heiner Kallweit wrote:
> Realtek RTL8169/8168/8125 NIC families indicate VPD capability and an
> optional VPD EEPROM can be connected via I2C/SPI. However I haven't
> seen any card or system with such a VPD EEPROM yet. The missing EEPROM
> causes the following warning whenever e.g. lscpi -vv is executed.
>
> invalid short VPD tag 00 at offset 01
>
> The warning confuses users, I think we should handle the situation more
> gentle. Therefore, if first VPD byte is read as 0x00, assume a missing
> optional VPD PROM and replace the warning with a more descriptive
> message at info level.
>
> Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Looks perfect, applied to pci/vpd for v5.13, thanks!
> ---
> v2: - don't remove user info completely, replace the warning with a more
> message at info level
> ---
> drivers/pci/vpd.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c
> index d1cbc5e64..48f4a9ae8 100644
> --- a/drivers/pci/vpd.c
> +++ b/drivers/pci/vpd.c
> @@ -74,6 +74,11 @@ static size_t pci_vpd_size(struct pci_dev *dev, size_t old_size)
> pci_read_vpd(dev, off, 1, header) == 1) {
> unsigned char tag;
>
> + if (!header[0] && !off) {
> + pci_info(dev, "Invalid VPD tag 00, assume missing optional VPD EPROM\n");
> + return 0;
> + }
> +
> if (header[0] & PCI_VPD_LRDT) {
> /* Large Resource Data Type Tag */
> tag = pci_vpd_lrdt_tag(header);
> --
> 2.31.1
>
