Messages in this thread | | | Subject | Re: [PATCH AUTOSEL 5.5 23/28] kconfig: Add yes2modconfig and mod2yesconfig targets. | From | Tetsuo Handa <> | Date | Fri, 27 Mar 2020 08:41:28 +0900 |
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Hello.
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 <penguin-kernel@i-love.sakura.ne.jp> > > [ 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 <penguin-kernel@I-love.SAKURA.ne.jp> > Cc: Dmitry Vyukov <dvyukov@google.com> > Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> > Signed-off-by: Sasha Levin <sashal@kernel.org>
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