All of lore.kernel.org
 help / color / mirror / Atom feed
From: Stephen Boyd <swboyd@chromium.org>
To: Peter Huewe <peterhuewe@gmx.de>,
	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: Andrey Pronin <apronin@chromium.org>,
	linux-kernel@vger.kernel.org, Jason Gunthorpe <jgg@ziepe.ca>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-integrity@vger.kernel.org,
	Duncan Laurie <dlaurie@chromium.org>,
	Guenter Roeck <groeck@chromium.org>,
	Dmitry Torokhov <dtor@chromium.org>
Subject: [PATCH v2 3/6] tpm_tis_spi: add max xfer size
Date: Tue, 16 Jul 2019 15:45:15 -0700	[thread overview]
Message-ID: <20190716224518.62556-4-swboyd@chromium.org> (raw)
In-Reply-To: <20190716224518.62556-1-swboyd@chromium.org>

From: Andrey Pronin <apronin@chromium.org>

Reject burstcounts larger than 64 bytes reported by tpm.
SPI Hardware Protocol defined in section 6.4 of TCG PTP
Spec supports up to 64 bytes of data in a transaction.

Signed-off-by: Andrey Pronin <apronin@chromium.org>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 drivers/char/tpm/tpm_tis_spi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/tpm/tpm_tis_spi.c b/drivers/char/tpm/tpm_tis_spi.c
index 19513e622053..27393275a3f0 100644
--- a/drivers/char/tpm/tpm_tis_spi.c
+++ b/drivers/char/tpm/tpm_tis_spi.c
@@ -190,6 +190,7 @@ static const struct tpm_tis_phy_ops tpm_spi_phy_ops = {
 	.read16 = tpm_tis_spi_read16,
 	.read32 = tpm_tis_spi_read32,
 	.write32 = tpm_tis_spi_write32,
+	.max_xfer_size = MAX_SPI_FRAMESIZE,
 };
 
 static int tpm_tis_spi_probe(struct spi_device *dev)
-- 
Sent by a computer through tubes


  parent reply	other threads:[~2019-07-16 22:45 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-16 22:45 [PATCH v2 0/6] tpm: Add driver for cr50 Stephen Boyd
2019-07-16 22:45 ` [PATCH v2 1/6] hwrng: core: Freeze khwrng thread during suspend Stephen Boyd
2019-07-17  1:43   ` Herbert Xu
2019-07-17 16:36     ` Stephen Boyd
2019-07-17 11:39   ` Jason Gunthorpe
2019-07-17 16:42     ` Stephen Boyd
2019-07-17 16:50       ` Jason Gunthorpe
2019-07-17 17:03         ` Stephen Boyd
2019-08-02 22:50           ` Stephen Boyd
2019-08-16 15:56             ` Alexander Steffen
2019-08-16 23:55               ` Jarkko Sakkinen
2019-08-02 20:22   ` Jarkko Sakkinen
2019-08-02 23:18     ` Stephen Boyd
2019-07-16 22:45 ` [PATCH v2 2/6] tpm_tis_core: add optional max xfer size check Stephen Boyd
2019-07-16 22:45 ` Stephen Boyd [this message]
2019-07-17  8:07   ` [PATCH v2 3/6] tpm_tis_spi: add max xfer size Alexander Steffen
2019-07-17 18:19     ` Stephen Boyd
2019-07-16 22:45 ` [PATCH v2 4/6] dt-bindings: tpm: document properties for cr50 Stephen Boyd
2019-07-16 22:45 ` [PATCH v2 5/6] tpm: add driver for cr50 on SPI Stephen Boyd
2019-07-17 12:00   ` Alexander Steffen
2019-07-17 12:25     ` Jason Gunthorpe
2019-07-17 16:49       ` Stephen Boyd
2019-07-17 16:56         ` Jason Gunthorpe
2019-07-17 17:05           ` Stephen Boyd
2019-07-17 17:12             ` Jason Gunthorpe
2019-07-17 17:22               ` Stephen Boyd
2019-07-17 17:25                 ` Jason Gunthorpe
2019-07-17 18:21                   ` Stephen Boyd
2019-07-17 18:30                     ` Guenter Roeck
2019-07-17 18:36                       ` Jason Gunthorpe
2019-07-17 19:57     ` Stephen Boyd
2019-07-17 21:38       ` Stephen Boyd
2019-07-17 22:17         ` Stephen Boyd
2019-07-18 16:47         ` Alexander Steffen
2019-07-18 18:11           ` Stephen Boyd
2019-07-19  7:53             ` Alexander Steffen
2019-08-01 16:02               ` Stephen Boyd
2019-08-02 15:21                 ` Jarkko Sakkinen
2019-08-02 18:03                   ` Stephen Boyd
2019-08-02 19:43                 ` Jarkko Sakkinen
2019-07-18 16:47       ` Alexander Steffen
2019-07-18 18:07         ` Stephen Boyd
2019-07-19  7:51           ` Alexander Steffen
2019-08-02 20:43         ` Jarkko Sakkinen
2019-08-02 22:32           ` Stephen Boyd
2019-08-02 20:41     ` Jarkko Sakkinen
2019-07-16 22:45 ` [PATCH v2 6/6] tpm: Add driver for cr50 on I2C Stephen Boyd
2019-07-17 15:19   ` Alexander Steffen
2019-08-05 23:52     ` Stephen Boyd
2019-08-02 20:44   ` Jarkko Sakkinen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190716224518.62556-4-swboyd@chromium.org \
    --to=swboyd@chromium.org \
    --cc=apronin@chromium.org \
    --cc=arnd@arndb.de \
    --cc=dlaurie@chromium.org \
    --cc=dtor@chromium.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=groeck@chromium.org \
    --cc=jarkko.sakkinen@linux.intel.com \
    --cc=jgg@ziepe.ca \
    --cc=linux-integrity@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterhuewe@gmx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.