Re: [PATCH 00/33] ABI: add it to the documentation build system

[Greg Kroah-Hartman]

On Wed, Oct 28, 2020 at 03:22:58PM +0100, Mauro Carvalho Chehab wrote:
> Hi Greg,
> 
> As requested, this is a rebased version on the top of v5.10-rc1
> adding support for having the Linux ABI documentted inside
> the Linux admin manual.
> 
> When compared with the version I sent years ago, this
> version has:
> 
> - a logic to detect duplicated ABI symbols;
> - it auto-generate cross-reference markups for ABI symbols,
>   ABI files and .rst files;
> - Other files from 5.10-rc1 required adjustments in order
>   to be accepted by the script in rst-source mode;
> - Some bug fixes.
> 
> PS.: I didn't try to merge it against linux-next yet. So,
> I won't doubt that applying it could cause some conflicts.
> 
> Feel free to review it.

After applying the first 10 patches, and running it, I see a bunch of
these types of warnings:

Use of uninitialized value $kernelversion in substitution (s///) at ./scripts/get_abi.pl line 444.
Use of uninitialized value $users in substitution (s///) at ./scripts/get_abi.pl line 446.
Use of uninitialized value $users in substitution (s///) at ./scripts/get_abi.pl line 447.

When doing something like:
$ ./scripts/get_abi.pl search usb --dir Documentation/ABI/stable/

Is that expected?

thanks,

greg k-h