Re: [PATCH] prctl: Deprecate non PR_SET_MM_MAP operations
From: Randy Dunlap
Date: Wed Apr 04 2018 - 17:37:08 EST
On 04/04/2018 02:29 PM, Cyrill Gorcunov wrote:
> On Wed, Apr 04, 2018 at 01:53:08PM -0700, Randy Dunlap wrote:
>>> At first this was plain warning without code removal but I've
>>> been advised that dropping it completely may be a better idea
>>> which I agree https://lkml.org/lkml/2018/4/4/31 Or you mean the
>>> warning message itsef? We aready have similars, for example
>>> in kernel/auditfilter.c
>> The traditional way (eons ago) to deprecate something was to add a
>> printk() and then delete the feature a few years later.
>> Still, I have no objection to dropping that prctl.
>> Sorry if I wasn't clear. I was objecting to the "language", i.e., to the
>> word "deprecated." Deprecated means frowned on, advised against, etc.
>> It does not mean "deleted."
> True. I remember this rule of deprecation. But when I dropped the
> code I though which message to put here (or should I put it at
> all) and since "deprecated" was the first word came into mind
> I decided to grep sources, the result you see by its own :)
>>> printk(KERN_ERR "AUDIT_POSSIBLE is deprecated\n");
>> Yeah, that one's wrong also. :)
> So, maybe just get rid of any warning message at all?
That would be OK since -EINVAL or something similar is being returned.