From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrey Pronin Subject: [PATCH v3 0/2] tpm: add optional max xfer size check Date: Wed, 27 Jul 2016 20:49:55 -0700 Message-ID: <1469677797-74304-1-git-send-email-apronin@chromium.org> References: <1468546745-14646-1-git-send-email-apronin@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1468546745-14646-1-git-send-email-apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> In-Reply-To: <1468546745-14646-1-git-send-email-apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> References: <1468546745-14646-1-git-send-email-apronin-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tpmdd-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Jarkko Sakkinen Cc: Christophe Ricard , dianders-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, smbarber-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, dtor-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org List-Id: tpmdd-devel@lists.sourceforge.net This patchset introduces an optional maximum transfer size that can be specified by a tpm driver. Setting the max_xfer_size helps to catch the cases when burstcnt is incorrectly reported by the device (e.g. >64 for spi - happened in practice) and gracefully handle such situations. v2: removed unnecessary accessors in tpm_tis_core.h, fixed style v3: simplified logic: simply cap the burstcnt at max_xfer_size, don't attempt to re-request from tpm. Andrey Pronin (2): tpm_tis_core: add optional max xfer size check tpm_tis_spi: add max xfer size drivers/char/tpm/tpm_tis_core.c | 9 ++++++++- drivers/char/tpm/tpm_tis_core.h | 1 + drivers/char/tpm/tpm_tis_spi.c | 1 + 3 files changed, 10 insertions(+), 1 deletion(-) -- 2.6.6 ------------------------------------------------------------------------------