Hello,
I'd like to say thank you for this very useful project. I am
relatively new to kernel development, so it would be impossible
for me to sort out the "collateral evolutions" and history of the
linux internals without backports.
I am trying to backport the rtl8192cu driver from linux v4.14-rc4
to an Android 5.11 system running linux kernel v3.10. My
development system is Linux Mint 17.1. I chose v4.14-rc4 because
that's the latest tag in backports. My backports repo and
linux-next repo are checked out to v4.14-rc4-1 and v4.14-rc4,
respectively.
I am getting an error when I try to create a backport package:
backports $ ./gentree.py --clean --verbose --git-revision v4.14-rc4
../linux-next/ ../linux-backport/
Get original source files from git ...
Applying patches from patches to ../linux-backport/ ...
Applying patch
0000-upstream-backport-changes/0005-uapi-compromise/mwifiex.patch
[...snip lots of good patches here...]
Applying SmPL patch 0027-genl-const/genl-const.cocci
Failed to process SmPL patch 0027-genl-const/genl-const.cocci with 1
Getting the output of pycocci:
backports $ ./devel/pycocci -j 1 -v
./patches/0027-genl-const/genl-const.cocci ../linux-backport/
spatch --sp-file ./patches/0027-genl-const/genl-const.cocci --in-place
--recursive-includes --relax-include-path --use-coccigrep --timeout 120
--dir ../linux-backport/
Failed to apply changes from genl-const.cocci
Specific log output from change that failed using genl-const.cocci
init_defs_builtins: /usr/local/bin/../lib/coccinelle/standard.h
meta: parse error:
File "./patches/0027-genl-const/genl-const.cocci", line 2, column 10,
charpos = 13
around = '__genl_const',
whole content = attribute __genl_const;
Full log using genl-const.cocci
init_defs_builtins: /usr/local/bin/../lib/coccinelle/standard.h
meta: parse error:
File "./patches/0027-genl-const/genl-const.cocci", line 2, column 10,
charpos = 13
around = '__genl_const',
whole content = attribute __genl_const;
[...snip callstack...]
This is very similar to this problem:
<https://www.spinics.net/lists/backports/msg04216.html>
The conclusion of that thread is that the --integrate workflow is
no longer supported.
However, I am not using --integrate, and I am still getting
errors about parsing '__genl_const'. Is that a bug in the patch
or possibly a regression in spatch? I've tried v4.14-rc2 also,
but nothing older.
This page has a lot of great example info, and suggested that it
could be a problem with my version of spatch. Specifically, that
I was missing the menhir and libmenhir-ocaml-dev packages when
building Coccinelle and a rebuild should help.
<http://stonyslp.blogspot.com/2017/08/backport-driver.html>
Unfortunately, I still have the same errors after running make
distclean and rebuilding.
I have:
coccinelle $ git describe --tags
1.0.6-365-gd73c6e6
coccinelle $ spatch --version
spatch version 1.0.6-00365-gd73c6e6 compiled with OCaml version 4.01.0
Flags passed to the configure script: [none]
OCaml scripting support: yes
Python scripting support: yes
Syntax of regular expresssions: PCRE
I found this patch which describes how older versions can't
handle the __genl_const changes (20150209):
<https://www.spinics.net/lists/backports/msg03223.html>
But, I also see commit 748116c8 from shortly after (20150507)
which introduced genl-const.cocci and says only spatch 1.0.0-rc23
is needed.
I feel like I'm close to figuring this out, but would appreciate
any help or pointers.
Thank you,
Remington Furman
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