From: Meelis Roos <mroos@linux.ee>
To: Joel Stanley <joel@jms.id.au>
Cc: Krzysztof Kozlowski <krzk@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Herbert Xu <herbert@gondor.apana.org.au>,
Michael Ellerman <mpe@ellerman.id.au>,
Christophe LEROY <christophe.leroy@c-s.fr>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] lib/xz: Put CRC32_POLY_LE in xz_private.h
Date: Sat, 22 Sep 2018 12:49:06 +0300 (EEST) [thread overview]
Message-ID: <alpine.LRH.2.21.1809221248410.17835@math.ut.ee> (raw)
In-Reply-To: <20180921025431.28366-1-joel@jms.id.au>
> This fixes a regression introduced by faa16bc404d72a5 ("lib: Use
> existing define with polynomial").
>
> The cleanup added a dependency on include/linux, which broke the PowerPC
> boot wrapper/decompresser when KERNEL_XZ is enabled:
>
> BOOTCC arch/powerpc/boot/decompress.o
> In file included from arch/powerpc/boot/../../../lib/decompress_unxz.c:233,
> from arch/powerpc/boot/decompress.c:42:
> arch/powerpc/boot/../../../lib/xz/xz_crc32.c:18:10: fatal error:
> linux/crc32poly.h: No such file or directory
> #include <linux/crc32poly.h>
> ^~~~~~~~~~~~~~~~~~~
>
> The powerpc decompresser is a hairy corner of the kernel. Even while building
> a 64-bit kernel it needs to build a 32-bit binary and therefore avoid including
> files from include/linux.
>
> This allows users of the xz library to avoid including headers from
> 'include/linux/' while still achieving the cleanup of the magic number.
>
> Fixes: faa16bc404d72a5 ("lib: Use existing define with polynomial")
> Reported-by: Meelis Roos <mroos@linux.ee>
> Reported-by: kbuild test robot <lkp@intel.com>
> Suggested-by: Christophe LEROY <christophe.leroy@c-s.fr>
> Signed-off-by: Joel Stanley <joel@jms.id.au>
Tested-by: Meelis Roos <mroos@linux.ee>
--
Meelis Roos (mroos@linux.ee)
next prev parent reply other threads:[~2018-09-22 9:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-21 2:54 [PATCH] lib/xz: Put CRC32_POLY_LE in xz_private.h Joel Stanley
2018-09-22 9:49 ` Meelis Roos [this message]
2018-10-05 1:37 ` Michael Ellerman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.LRH.2.21.1809221248410.17835@math.ut.ee \
--to=mroos@linux.ee \
--cc=christophe.leroy@c-s.fr \
--cc=gregkh@linuxfoundation.org \
--cc=herbert@gondor.apana.org.au \
--cc=joel@jms.id.au \
--cc=krzk@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).