linux-kernel - Re: [PATCH v2 7/8] minmax: Use __auto

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Message-ID: <CAHk-=wjJY5tT=Jk5EC+JV2nqqVjxsOJHK8_AE8YnpPMT3AYu9Q@mail.gmail.com>
Date: Sun, 28 Jul 2024 09:59:12 -0700
From: Linus Torvalds <torvalds@...uxfoundation.org>
To: David Laight <David.Laight@...lab.com>
Cc: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Jens Axboe <axboe@...nel.dk>, 
	"Matthew Wilcox (Oracle)" <willy@...radead.org>, Christoph Hellwig <hch@...radead.org>, 
	Andrew Morton <akpm@...ux-foundation.org>, 
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
	Dan Carpenter <dan.carpenter@...aro.org>, Arnd Bergmann <arnd@...nel.org>, 
	"Jason@...c4.com" <Jason@...c4.com>, "pedro.falcato@...il.com" <pedro.falcato@...il.com>, 
	Mateusz Guzik <mjguzik@...il.com>, "linux-mm@...ck.org" <linux-mm@...ck.org>, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Subject: Re: [PATCH v2 7/8] minmax: Use __auto_type

On Sun, 28 Jul 2024 at 07:24, David Laight <David.Laight@...lab.com> wrote:
>
> Replacing 'typeof(x) _x = (x)' with '__auto_type _x = (x)' removes
> one expansion of 'x'.

Ack. We should do this more widely, but the whole "typeof()" predates
__auto_type by many years, and we (and by that I mean "I" - the royal
we) have just years of historical mental baggage.

              Linus