[lkml]   [2020]   [Mar]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH AUTOSEL 5.5 23/28] kconfig: Add yes2modconfig and mod2yesconfig targets.

I'm fine with backporting this patch. But if you want to backport this patch, please also
backport 089b7d890f972f6b ("kconfig: Invalidate all symbols after changing to y or m.")
which actually makes this patch functional.

On 2020/03/27 8:23, Sasha Levin wrote:
> From: Tetsuo Handa <>
> [ Upstream commit 89b9060987d988333de59dd218c9666bd7ee95a5 ]
> Since kernel configs provided by syzbot are close to "make allyesconfig",
> it takes long time to rebuild. This is especially waste of time when we
> need to rebuild for many times (e.g. doing manual printk() inspection,
> bisect operations).
> We can save time if we can exclude modules which are irrelevant to each
> problem. But "make localmodconfig" cannot exclude modules which are built
> into vmlinux because /sbin/lsmod output is used as the source of modules.
> Therefore, this patch adds "make yes2modconfig" which converts from =y
> to =m if possible. After confirming that the interested problem is still
> reproducible, we can try "make localmodconfig" (and/or manually tune
> based on "Modules linked in:" line) in order to exclude modules which are
> irrelevant to the interested problem. While we are at it, this patch also
> adds "make mod2yesconfig" which converts from =m to =y in case someone
> wants to convert from =m to =y after "make localmodconfig".
> Signed-off-by: Tetsuo Handa <>
> Cc: Dmitry Vyukov <>
> Signed-off-by: Masahiro Yamada <>
> Signed-off-by: Sasha Levin <>

 \ /
  Last update: 2020-03-27 00:43    [W:0.119 / U:1.976 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site