Re: [PATCH] cpufreq: sun50i: Fix build warning around snprint()
From: Julian Calaby
Date: Tue Apr 23 2024 - 02:28:41 EST
Hi Viresh,
On Tue, Apr 23, 2024 at 4:12 PM Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
>
> On 23-04-24, 11:38, Julian Calaby wrote:
> > On Mon, Apr 22, 2024 at 1:31 PM Viresh Kumar <viresh.kumar@xxxxxxxxxx> wrote:
> > > diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
> > > index 30e5c337611c..cd50cea16a87 100644
> > > --- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c
> > > +++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
> > > @@ -208,7 +206,7 @@ static int sun50i_cpufreq_get_efuse(void)
> > > static int sun50i_cpufreq_nvmem_probe(struct platform_device *pdev)
> > > {
> > > int *opp_tokens;
> > > - char name[MAX_NAME_LEN];
> > > + char name[] = "speedXXXXXXXXXXX"; /* Integers can take 11 chars max */
> >
> > Would it make sense to just set a static length for the string here,
> > say 17-20 characters and add a comment explaining the number, say: /*
> > "speed" + 11 chars for the int */
> >
> > The string constant, while it'll probably be optimised away, seems
> > weird and wasteful.
>
> The counting goes wrong (I have done it in the past) sometimes and so
> I like to explicitly reserve space like this, it also makes it look
> cleaner, i.e. how the eventual string will be named.
I completely agree - ultimately it's whatever works and either way
works equally well.
Thanks,
--
Julian Calaby
Email: julian.calaby@xxxxxxxxx
Profile: http://www.google.com/profiles/julian.calaby/