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From: Gabriele Monaco <gmonaco@redhat.com>
To: Nam Cao <namcao@linutronix.de>, Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	linux-trace-kernel@vger.kernel.org,
	 linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] rv: Convert to use lock guard
Date: Wed, 26 Nov 2025 10:33:51 +0100	[thread overview]
Message-ID: <2803da35e4de12ef2ca966a69052bf228f1cd10f.camel@redhat.com> (raw)
In-Reply-To: <878qft5gxk.fsf@yellow.woof>

On Wed, 2025-11-26 at 09:36 +0100, Nam Cao wrote:
> On Tue, 2025-11-25 at 14:57 -0500, Steven Rostedt wrote:
> > On Mon, 17 Nov 2025 09:06:02 +0000
> > Nam Cao <namcao@linutronix.de> wrote:
> > 
> > > @@ -644,13 +640,11 @@ static ssize_t enabled_monitors_write(struct file
> > > *filp, const char __user *user
> > >  		else
> > >  			retval = rv_disable_monitor(mon);
> > >  
> > > -		if (!retval)
> > > -			retval = count;
> > > -
> > > -		break;
> > > +		if (retval)
> > > +			return retval;
> > > +		return count;
> > 
> > No biggy, but I wonder if this would look better as:
> > 
> > 		return retval ? : count;
> 
> Unless you really prefer it this way, I would rather not. The first time
> I saw this syntax, it confused the hell out of me. Took me some time
> scratching my head until I figured out that it is a GNU extension.
> 
> I prefer to stay with the C standard unless there is major benefit not
> to.

To be fair, I find it a bit obscure as well, although it's frequently used
within the kernel.

Let's not change it then.

Thanks,
Gabriele


  reply	other threads:[~2025-11-26  9:33 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-17  9:06 [PATCH v2 0/2] rv: Tidy up with auto-cleanup Nam Cao
2025-11-17  9:06 ` [PATCH v2 1/2] rv: Convert to use lock guard Nam Cao
2025-11-25 19:57   ` Steven Rostedt
2025-11-26  7:27     ` Gabriele Monaco
2025-11-26  8:36       ` Nam Cao
2025-11-26  9:33         ` Gabriele Monaco [this message]
2025-11-26 15:42           ` Steven Rostedt
2025-11-26 14:51       ` Steven Rostedt
2025-11-26 15:22         ` Gabriele Monaco
2025-12-01 15:24           ` Steven Rostedt
2025-12-01 15:28             ` Gabriele Monaco
2025-12-02  1:38               ` Steven Rostedt
2025-12-02  1:51                 ` Steven Rostedt
2025-12-02  6:41                   ` Gabriele Monaco
2025-12-01 15:28             ` Nam Cao
2025-11-17  9:06 ` [PATCH v2 2/2] rv: Convert to use __free Nam Cao

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