linux-kernel - RE: [PATCH] CHROMIUM: tpm: tpm_tis_i2c: Lock the I2C adapter for a sequence of requests.

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: <74A44E99E3274B4CB570415926B37D44056417@MUCSE501.eu.infineon.com>
Date:	Fri, 5 Aug 2011 07:33:58 +0000
From:	<Huewe.external@...ineon.com>
To:	<bfreed@...omium.org>, <linux-kernel@...r.kernel.org>
CC:	<tpmdd-devel@...ts.sourceforge.net>, <m.selhorst@...rix.com>,
	<srajiv@...ux.vnet.ibm.com>, <debora@...ux.vnet.ibm.com>
Subject: RE: [PATCH] CHROMIUM: tpm: tpm_tis_i2c: Lock the I2C adapter for a
 sequence of requests.

Looks good to me :)

Signed-off-by: Peter Huewe <huewe.external@...ineon.com>

> Subject: [PATCH] CHROMIUM: tpm: tpm_tis_i2c: Lock the I2C adapter for a
> sequence of requests.
> 
> This is derived from Peter Huewe's recommended fix:
> 
> On some ChromeOS systems, a TPM sharing the I2C bus with another device
> gets confused when it sees I2C requests to that other device.
> This change locks the I2C adapter for the duration of the full sequence
> of I2C requests the TPM needs to complete.
> 
> smbus_xfer is not supported, but SMBUS is not supported by the original
> driver, either.
> 
> Signed-off-by: Bryan Freed <bfreed@...omium.org>
> ---

--
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/