linux-kernel - Re: [PATCH] OMAP: MMC: recover from transfer failures

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: <20090205121045.4022c319.akpm@linux-foundation.org>
Date:	Thu, 5 Feb 2009 12:10:45 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Jean Pihet <jpihet@...sta.com>
Cc:	tony@...mide.com, ext-adrian.hunter@...ia.com,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	linux-omap@...r.kernel.org, jarkko.lavinen@...ia.com,
	drzeus-mmc@...eus.cx, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] OMAP: MMC: recover from transfer failures - Resend

On Tue, 3 Feb 2009 15:05:58 +0100
Jean Pihet <jpihet@...sta.com> wrote:

> +	while (OMAP_HSMMC_READ(host->base,
> + 			SYSCTL) & SRD)
> + 		;

Is a __raw_readl() sufficient to prevent the cpu from burning up here,
or should we add cpu_relax()?

An infinite loop which assumes the hardware is perfect is always a
worry.  But I see the driver already does that, so we're no worse off..

--
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/