linux-kernel - Re: [PATCH 08/14] zram: check that backends array has at least one backend

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Sun, 5 May 2024 14:13:05 +0900
From: Sergey Senozhatsky <senozhatsky@...omium.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: kernel test robot <lkp@...el.com>, Minchan Kim <minchan@...nel.org>,
	llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	Linux Memory Management List <linux-mm@...ck.org>,
	linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
	Sergey Senozhatsky <senozhatsky@...omium.org>
Subject: Re: [PATCH 08/14] zram: check that backends array has at least one
 backend

On (24/05/05 13:39), Sergey Senozhatsky wrote:
[..]
> > I guess just pick one if none were selected.

How do I pick one if none were selected? Does Kconfig support
something like that?

> : config ZRAM
> :        tristate "Compressed RAM block device support"
> :        depends on BLOCK && SYSFS && MMU
> :        select ZSMALLOC
> :        depends on (LZO_COMPRESS && LZO_DECOMPRESS) || \
> :                (LZ4_COMPRESS && LZ4_DECOMPRESS) || \
> :                (LZ4HC_COMPRESS && LZ4_DECOMPRESS) || \
> :                (ZSTD_COMPRESS && ZSTD_DECOMPRESS) || \
> :                (ZLIB_DEFLATE && ZLIB_INFLATE)

The problem I'm having with this is that FOO_COMPRESS can be M while
zram needs Y.