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Date:   Fri, 14 Jun 2019 18:24:36 +0300
From:   Jarkko Sakkinen <>
To:     Stephen Boyd <>
Cc:     Peter Huewe <>,
        Andrey Pronin <>,, Jason Gunthorpe <>,
        Arnd Bergmann <>,
        Greg Kroah-Hartman <>,,,
        Duncan Laurie <>,
        Guenter Roeck <>,
        Dmitry Torokhov <>
Subject: Re: [PATCH 2/8] tpm_tis_core: add optional max xfer size check

On Thu, Jun 13, 2019 at 11:09:25AM -0700, Stephen Boyd wrote:
> From: Andrey Pronin <>
> If tpm reports a bigger burstcnt than allowed by the physical protocol,
> set burstcnt to the max allowed value.
> In practice, seen in case of xfer issues (e.g. in spi interface case,
> lost header causing flow control issues and wrong values returned on read
> from TPM_STS). Without catching, causes the physical layer to reject xfer.
> Signed-off-by: Andrey Pronin <>
> Reviewed-by: Dmitry Torokhov <>
> Reviewed-by: Jarkko Sakkinen <>
> [ Drop extra parenthesis in if statement]
> Signed-off-by: Stephen Boyd <>

Reviewed-by: Jarkko Sakkinen <>


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