Re: [PATCH 00/11] Add support for RaspberryPi RP1 PCI device using a DT overlay

Andrew Lunn
2024-08-22T13:04:47Z

> WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
> #673: FILE: drivers/pinctrl/pinctrl-rp1.c:600:
> + return -ENOTSUPP;
>
> This I must investigate: I've already tried to fix it before sending the patchset
> but for some reason it wouldn't work, so I planned to fix it in the upcoming
> releases.

ENOTSUPP is an NFS error. It should not be used outside for NFS. You
want EOPNOTSUPP.

> WARNING: externs should be avoided in .c files
> #331: FILE: drivers/misc/rp1/rp1-pci.c:58:
> +extern char __dtbo_rp1_pci_begin[];
>
> True, but in this case we don't have a symbol that should be exported to other
> translation units, it just needs to be referenced inside the driver and
> consumed locally. Hence it would be better to place the extern in .c file.

Did you try making it static.

Andrew