[RFC PATCH] clocksource: arm_arch_timer: disable the evtstrm via the cmdline

On 06/20/2016 10:21 AM, Will Deacon wrote:

On Sun, Jun 19, 2016 at 10:08:38PM +0200, Daniel Lezcano wrote:

quoted

On 06/17/2016 03:43 PM, Will Deacon wrote:

[ Cc'ed tglx ]

quoted

Disabling the eventstream can be useful for debugging and development
purposes

If it is for debugging and development, why upstream this change ?

Mainly because it's desirable to be able to debug systems remotely, on
machines that you don't have direct access to and where recompiling the
kernel isn't necessarily an option. There are plenty of "no*" kernel
parameters already that fall into a similar category.

Hi Will,

if the kernel is in development and debug, why this option can't be part 
of debugging code ?

If recompiling isn't an option, how this can be for "debugging and 
development" ?

I'm not a big fan of the all the specific driver options for the kernel 
parameters. If there is a real need to disable some parts of a driver, 
it would be much more interesting to write a framework for that and then 
use it from arm_arch_timer, thus giving the other drivers the 
opportunity to provide the same feature.

   -- Daniel


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