linux-kernel - Re: [PATCH] remove CONFIG

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Date:   Thu, 30 Jun 2022 05:02:19 +0200
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Joe Perches <joe@...ches.com>
Cc:     Kalesh Singh <kaleshsingh@...gle.com>,
        Christoph Hellwig <hch@....de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arve Hjønnevåg <arve@...roid.com>,
        Todd Kjos <tkjos@...roid.com>,
        Martijn Coenen <maco@...roid.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Christian Brauner <brauner@...nel.org>,
        Hridya Valsaraju <hridya@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Theodore Ts'o <tytso@....edu>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        "Alex Xu (Hello71)" <alex_y_xu@...oo.ca>,
        Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Frederic Weisbecker <frederic@...nel.org>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>,
        Josh Triplett <josh@...htriplett.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Shuah Khan <shuah@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, wireguard@...ts.zx2c4.com,
        netdev@...r.kernel.org, rcu <rcu@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>, sultan@...neltoast.com,
        android-kernel-team <android-kernel-team@...gle.com>,
        John Stultz <jstultz@...gle.com>,
        Saravana Kannan <saravanak@...gle.com>, rafael@...nel.org
Subject: Re: [PATCH] remove CONFIG_ANDROID

On Wed, Jun 29, 2022 at 06:44:14PM -0700, Joe Perches wrote:
> On Thu, 2022-06-30 at 02:50 +0200, Jason A. Donenfeld wrote:
> > On Wed, Jun 29, 2022 at 05:36:57PM -0700, Joe Perches wrote:
> > > > > +static ssize_t pm_userspace_autosleeper_show(struct kobject *kobj,
> > > > > +                               struct kobj_attribute *attr, char *buf)
> > > > > +{
> > > > > +       return sprintf(buf, "%d\n", pm_userspace_autosleeper_enabled);
> > > 
> > > This should use sysfs_emit no?
> > 
> > Probably, yea. Note that I just copy and pasted a nearby function,
> > pm_async_show, `:%s/`d the variable name, and then promptly `git diff |
> > clip`d it and plonked it into my email. Looking at the file, it uses
> > sprintf all over the place in this fashion. So you may want to submit a
> > cleanup to Rafael on this if you're right about sysfs_emit() being
> > universally preferred.
> 
> Perhaps:
> 
> (trivial refactored and added a missing newline in autosleep_show)
> 
> ---
>  kernel/power/main.c | 102 ++++++++++++++++++++++++++--------------------------
>  1 file changed, 52 insertions(+), 50 deletions(-)

You should probably post a proper patch to the PM people. At least I'm
not going to look at that here, as it's not really relevant at all to
this discussion.

Jason