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Groups > linux.kernel > #1451707

[PATCH v3 2/2] tpm_tis_spi: add max xfer size

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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>
---
 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 dbaad9c..b103373 100644
--- a/drivers/char/tpm/tpm_tis_spi.c
+++ b/drivers/char/tpm/tpm_tis_spi.c
@@ -206,6 +206,7 @@ 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)
-- 
2.6.6

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[PATCH v3 0/2] tpm: add optional max xfer size check Andrey Pronin <apronin@chromium.org> - 2016-07-28 06:00 +0200
  [PATCH v3 1/2] tpm_tis_core: add optional max xfer size check Andrey Pronin <apronin@chromium.org> - 2016-07-28 06:00 +0200
    Re: [PATCH v3 1/2] tpm_tis_core: add optional max xfer size check Dmitry Torokhov <dtor@chromium.org> - 2016-07-29 01:00 +0200
    Re: [PATCH v3 1/2] tpm_tis_core: add optional max xfer size check Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-08-09 10:20 +0200
  [PATCH v3 2/2] tpm_tis_spi: add max xfer size Andrey Pronin <apronin@chromium.org> - 2016-07-28 06:00 +0200
    Re: [PATCH v3 2/2] tpm_tis_spi: add max xfer size Dmitry Torokhov <dtor@chromium.org> - 2016-07-29 01:00 +0200
      Re: [PATCH v3 2/2] tpm_tis_spi: add max xfer size Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2016-08-09 10:20 +0200

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