linux-kernel - Re: linux-next: build failure after merge all the trees

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Message-ID: <20250508222531.0e7fab9c@canb.auug.org.au>
Date: Thu, 8 May 2025 22:25:31 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Akira Yokosawa <akiyks@...il.com>
Cc: corbet@....net, linux-kernel@...r.kernel.org,
 linux-next@...r.kernel.org, Mauro Carvalho Chehab
 <mchehab+huawei@...nel.org>, Dan Williams <dan.j.williams@...el.com>
Subject: Re: linux-next: build failure after merge all the trees

Hi Akira,

On Thu, 8 May 2025 19:54:08 +0900 Akira Yokosawa <akiyks@...il.com> wrote:
>
> Please try:
> 
>   make O="$HOME/next/htmldocs" KERNELDOC=scripts/kernel-doc.pl htmldocs
> 
> , assuming your $HOME/next/next is the top of kernel source.
> 
> I'm suspecting that the conflict resolution done in
> c84724f2137f ("Merge branch 'for-6.16/tsm-mr' into tsm-next")
> ended up in mismatching path names given to "kernel-doc::" somewhere.
> 
> Looks like recent conversion of the kernel-doc script into python
> has changed the behavior in such error conditions.
> With the perl version, you'll see a couple of:
> 
>     Error: Cannot open file <...>/linux/drivers/virt/coco/tsm-mr.c
> 
> , but the doc build should complete.

OK, so, yes, the build completes.  I get the following message
(multiple similar ones):

WARNING: kernel-doc 'scripts/kernel-doc.pl -rst -enable-lineno -export -export-file drivers/misc/mei/bus.c drivers/misc/mei/bus.c' processing failed with: [Errno 2] No such file or directory: 'scripts/kernel-doc.pl'

So, I used "KERNELDOC=$(pwd)/scripts/kernel-doc.pl" and tried again.

I got these (new) messages:

Error: Cannot open file drivers/virt/coco/tsm-mr.c
Error: Cannot open file drivers/virt/coco/tsm-mr.c
WARNING: kernel-doc 'scripts/kernel-doc.pl -rst -enable-lineno -export drivers/virt/coco/tsm-mr.c' failed with return code 2

(and a few other innocuous ones)

So your guess is good.

It would be nice to have the Python kernel-doc fixed as well as the
devsec-tsm tree.

Thanks.
-- 
Cheers,
Stephen Rothwell

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