Re: [PATCH v7 02/13] arch/x86: Rename the RDT functions and definitions

From: Borislav Petkov
Date: Mon Nov 12 2018 - 14:46:11 EST


On Mon, Nov 12, 2018 at 07:25:02PM +0000, Moger, Babu wrote:
> >> @@ -637,10 +637,11 @@ int rdt_get_mon_l3_config(struct rdt_resource *r)
> >> *
> >> * For a 35MB LLC and 56 RMIDs, this is ~1.8% of the LLC.
> >> */
> >> - intel_cqm_threshold = boot_cpu_data.x86_cache_size * 1024 / r->num_rmid;
> >> + resctrl_cqm_threshold = boot_cpu_data.x86_cache_size * 1024 /
> >> + r->num_rmid;
> >
> > No need to break that line here.
>
> Without the line break, checkpatch complains for "line over 80
> characters". Do you think we can ignore those?

To quote from the tip handbook which is in preparation right now:

"+The 80 character rule is not a strict rule, so please use common sense when
+breaking lines."

In this particular case, it is more readable IMO to leave the line unbroken:

resctrl_cqm_threshold = boot_cpu_data.x86_cache_size * 1024 / r->num_rmid;

What is even more readable though is:

unsigned int cl_size = boot_cpu_data.x86_cache_size;

...

resctrl_cqm_threshold = cl_size * 1024 / r->num_rmid;

and now you have a win-win situation. :)

Thx.

--
Regards/Gruss,
Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.