linux-kernel - Re: [PATCH v3 2/6] compiler.h: Introduce TYPEOF

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <20241209113039.GN21636@noisy.programming.kicks-ass.net>
Date: Mon, 9 Dec 2024 12:30:39 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Uros Bizjak <ubizjak@...il.com>
Cc: x86@...nel.org, linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	linux-bcachefs@...r.kernel.org, linux-arch@...r.kernel.org,
	netdev@...r.kernel.org, Nadav Amit <nadav.amit@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Dennis Zhou <dennis@...nel.org>, Tejun Heo <tj@...nel.org>,
	Christoph Lameter <cl@...ux.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andy Lutomirski <luto@...nel.org>, Ingo Molnar <mingo@...nel.org>,
	Brian Gerst <brgerst@...il.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH v3 2/6] compiler.h: Introduce TYPEOF_UNQUAL() macro

On Sun, Dec 08, 2024 at 09:45:17PM +0100, Uros Bizjak wrote:
> Define TYPEOF_UNQUAL() to use __typeof_unqual__() as typeof operator
> when available, to return unqualified type of the expression.
> 
> Current version of sparse doesn't know anything about __typeof_unqual__()
> operator. Avoid the usage of __typeof_unqual__() when sparse checking
> is active to prevent sparse errors with unknowing keyword.

Ooooh, new toys.

I suppose __unqual_scalar_typeof() wants to be using this when
available?