On Wed, Apr 19, 2017 at 06:29:08PM +0300, Jarkko Sakkinen wrote:

On Sun, Apr 16, 2017 at 09:14:29PM +0200, Paul Menzel wrote:

quoted

Dear Greg,


On 2017-04-15 22:50, Greg KH wrote:

quoted

On Sat, Apr 15, 2017 at 06:26:22PM +0300, Jarkko Sakkinen wrote:

quoted

From: "Maciej S. Szmigiero" <redacted>

Since commit 1107d065fdf1 ("tpm_tis: Introduce intermediate layer for
TPM access") Atmel 3203 TPM on ThinkPad X61S (TPM firmware version
13.9)
no longer works.  The initialization proceeds fine until we get and
start using chip-reported timeouts - and the chip reports C and D
timeouts of zero.

It turns out that until commit 8e54caf407b98e ("tpm: Provide a generic
means to override the chip returned timeouts") we had actually let
default timeout values remain in this case, so let's bring back this
behavior to make chips like Atmel 3203 work again.

Use a common code that was introduced by that commit so a warning is
printed in this case and /sys/class/tpm/tpm*/timeouts correctly says
the
timeouts aren't chip-original.

Fixes: 1107d065fdf1 ("tpm_tis: Introduce intermediate layer for TPM
access")
Cc: stable at vger.kernel.org
Signed-off-by: Maciej S. Szmigiero <redacted>
Reviewed-by: Jarkko Sakkinen <redacted>
Signed-off-by: Jarkko Sakkinen <redacted>

What is the git commit id for this patch in Linus's tree?

The git commit hash is 1d70fe9d9c3a4c627f9757cbba5d628687b121c1.


Kind regards,

Paul

Do you want me to revise the backport? Thanks.

I can't take it as-is, so yes, if you want it applied, it needs to be
fixed :)

thanks,

greg k-h
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