linux-kernel - Re: [PATCH v4 04/28] range: Add range

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Zwapm97gV0y7Up9H@black.fi.intel.com>
Date: Wed, 9 Oct 2024 19:04:43 +0300
From: Andy Shevchenko <andriy.shevchenko@...el.com>
To: David Sterba <dsterba@...e.cz>
Cc: Ira Weiny <ira.weiny@...el.com>, Dave Jiang <dave.jiang@...el.com>,
	Fan Ni <fan.ni@...sung.com>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Navneet Singh <navneet.singh@...el.com>,
	Jonathan Corbet <corbet@....net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Davidlohr Bueso <dave@...olabs.net>,
	Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	linux-btrfs@...r.kernel.org, linux-cxl@...r.kernel.org,
	linux-doc@...r.kernel.org, nvdimm@...ts.linux.dev,
	linux-kernel@...r.kernel.org, Chris Mason <clm@...com>,
	Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>,
	Johannes Thumshirn <johannes.thumshirn@....com>
Subject: Re: [PATCH v4 04/28] range: Add range_overlaps()

On Wed, Oct 09, 2024 at 05:36:42PM +0200, David Sterba wrote:
> On Wed, Oct 09, 2024 at 05:45:10PM +0300, Andy Shevchenko wrote:
> > On Tue, Oct 08, 2024 at 06:10:32PM +0200, David Sterba wrote:
> > > On Mon, Oct 07, 2024 at 06:16:10PM -0500, Ira Weiny wrote:

...

> > > > +static inline bool range_overlaps(struct range *r1, struct range *r2)
> > > 
> > > I've noticed only now, you can constify the arguments, but this applise
> > > to other range_* functions so that can be done later in one go.
> > 
> > Frankly you may add the same to each new API being added to the file and
> > the "one go" will never happen.
> 
> Yeah, but it's a minor issue for a 28 patchset, I don't know if there
> are some other major things still to do so that a v5 is expected.

At least seems printf() changes have to be amended, so I think v5 is
warranted anyway.

> If anybody is interested, reviewing APIs and interfaces with focus on
> some data structure and const is relatively easy, compile test is
> typically enough.

Except the cases where a const pointer has to be passed thru non-const
(or integer) field in a data structure. Tons of the existing examples is
ID tables that wanted to have kernel_ulong_t instead of const void * in
driver data field.

> The hard part is to find the missing ones. There's no
> compiler aid thad I'd know of (-Wsuggest-attribute=const is not for
> parameters), so it's been reading a file top-down for me.

Yeah...

> > So, I support your first part with
> > constifying, but I think it would be rather done now to start that "one
> > go" to happen.
> 
> Agreed, one patch on top is probably the least intrusive way.

-- 
With Best Regards,
Andy Shevchenko