Subject: [PATCH next] arm64: remove "SMP: Total of %d processors activated." message

From: [email-masked] (Will Deacon)
Date: Fri, 18 Nov 2016 10:18:26 +0000

On Fri, Nov 18, 2016 at 11:37:10AM +0800, Kefeng Wang wrote:
> 
> 
> On 2016/11/17 22:22, Will Deacon wrote:
> > On Thu, Nov 17, 2016 at 03:32:26PM +0800, Kefeng Wang wrote:
> >> There is a common SMP boot message in generic code on all arches,
> >> kill "SMP: Total of %d processors activated." in smp_cpus_done()
> >> on arm64.
> >>
> >> Signed-off-by: Kefeng Wang <[email-masked]>
> >> ---
> >> Boot message on qemu.
> >> [    0.375116] smp: Brought up 1 node, 8 CPUs
> >> [    0.383749] SMP: Total of 8 processors activated.
> >>
> >>  arch/arm64/kernel/smp.c | 1 -
> >>  1 file changed, 1 deletion(-)
> >>
> >> diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
> >> index cb87234..9db4a95 100644
> >> --- a/arch/arm64/kernel/smp.c
> >> +++ b/arch/arm64/kernel/smp.c
> >> @@ -428,7 +428,6 @@ static void __init hyp_mode_check(void)
> >>  
> >>  void __init smp_cpus_done(unsigned int max_cpus)
> >>  {
> >> -	pr_info("SMP: Total of %d processors activated.\n", num_online_cpus());
> >>  	setup_cpu_features();
> >>  	hyp_mode_check();
> >>  	apply_alternatives_all();
> > 
> > Why? Are you proposing the same change to other architectures? Are you paid
> > per patch?
> 
> The message provides no further information than the generic code, so kill it.
> Or show BogoMIPS like arm32?

Ha! No, I don't think printing the BogoMIPS is the right solution. I just
think that, if you insist on removing the harmless print, then you should
also consider doing the same thing for all the other architectures that
print the same message.

Will