[PATCH 00/18] ARM: use const and __initconst for smp_operations

Masahiro Yamada yamada.masahiro at socionext.com
Mon Aug 24 18:37:15 PDT 2015

Hi Russell, Olof,

2015-08-25 6:44 GMT+09:00 Olof Johansson <olof at lixom.net>:
> On Mon, Aug 24, 2015 at 2:21 PM, Russell King - ARM Linux
> <linux at arm.linux.org.uk> wrote:
>> On Mon, Aug 24, 2015 at 02:12:06PM -0700, Olof Johansson wrote:
>>> Easiest of all would probably be to get the sub-arch patches into one
>>> release, then switch the prototypes and function definitions in the
>>> next. If you switch prototypes first you'll get a bunch of warnings,
>>> right?
>> Wrong way around. :)
>> If you change the sub-arches to declare the smp operations as const,
>> and try and pass them into a function which doesn't take a const-pointer,
>> you'll get a warning.  The core bits need to go in first before the
>> sub-arch patches.
> Ah yes, my bad.
>> I think the series has limited value - it allows us to (a) check that a
>> small quantity of code doesn't write to these things, and (b) allows us
>> to move the SMP operations structure from __initdata to __initconstdata.
>> It's still going to end up in the init region which is read/write in any
>> case, and still gets thrown away.
>> Given where we are, I don't think we need to rush this in during the
>> last week before the merge window opens, even though it's trivial.
> Agreed. So if you pick it up for 4.4, we'll get the rest for 4.5.


I will put 01 and 02 to Russell's patch tracker
(after waiting for a bit more comments just in case).

I will do the rest later.

Best Regards
Masahiro Yamada

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