linux-kernel - Re: [RFC] arm: Add for atomic half word exchange

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: <39330782.97MFhnlPJe@wuerfel>
Date:	Tue, 19 May 2015 13:42:42 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org, ganguly.s@...sung.com
Cc:	"Waiman.Long@...com" <Waiman.Long@...com>,
	"peterz@...radead.org" <peterz@...radead.org>,
	"vikram.m@...sung.com" <vikram.m@...sung.com>,
	"raghavendra.kt@...ux.vnet.ibm.com" 
	<raghavendra.kt@...ux.vnet.ibm.com>,
	"oleg@...hat.com" <oleg@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"mingo@...hat.com" <mingo@...hat.com>,
	SHARAN ALLUR <sharan.allur@...sung.com>,
	"hpa@...or.com" <hpa@...or.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>
Subject: Re: [RFC] arm: Add for atomic half word exchange

On Tuesday 19 May 2015 11:20:11 Sarbojit Ganguly wrote:
> Yes, I will try to do that. OTOH, I saw that  there was a discussion on
> removal of bad_xchg() altogether. Perhaps that approach be better than
> adding this half word exchange?

Removing bad_xchg() only helps insofar as we get a link-time error
instead of a run-time error. That is certainly a good idea, but it
does not solve your problem.

	Arnd
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/