Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Tue, Apr 10, 2018 at 03:31:09PM +0300, Jarkko Sakkinen wrote: > On Mon, 2018-04-09 at 10:29 -0400, Mimi Zohar wrote: > > If this change is acceptable, do you want to make the change or should Nayna > > repost the patch? > > No need. I'll move on to testing. Tested-by: Jarkko SakkinenReviewed-by: Jarkko Sakkinen /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Tue, Apr 10, 2018 at 03:31:09PM +0300, Jarkko Sakkinen wrote: > On Mon, 2018-04-09 at 10:29 -0400, Mimi Zohar wrote: > > If this change is acceptable, do you want to make the change or should Nayna > > repost the patch? > > No need. I'll move on to testing. Tested-by: Jarkko Sakkinen Reviewed-by: Jarkko Sakkinen /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Mon, 2018-04-09 at 10:29 -0400, Mimi Zohar wrote: > On Sat, 2018-04-07 at 13:36 +0300, Jarkko Sakkinen wrote: > > On Fri, Apr 06, 2018 at 02:03:37PM +0530, Nayna Jain wrote: > > > On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: > > > > On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > > > > > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > > > > > handle the TPM2_RC_RETRY error. The loop retries the command after > > > > > sleeping for the specified time, which is incremented exponentially in > > > > > every iteration. This patch fixes the initial sleep to be the default > > > > > sleep time. > > > > > > > > I think I understand the code change but do not understand what the > > > > long description. > > > > > > It tells that the first sleep is delay_msec * 2 and not delay_msec. > > > > So the problem is that the loop doubles the time before sleeping > > for the first time. This is missing from the description. Please > > refine it in some way. > > Sure, how about replacing the last line of the patch description with: > Unfortunately, the loop doubles the time before sleeping, causing the > initial sleep to be doubled. This patch fixes the initial sleep time. > > If this change is acceptable, do you want to make the change or should Nayna > repost the patch? No need. I'll move on to testing. /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Mon, 2018-04-09 at 10:29 -0400, Mimi Zohar wrote: > On Sat, 2018-04-07 at 13:36 +0300, Jarkko Sakkinen wrote: > > On Fri, Apr 06, 2018 at 02:03:37PM +0530, Nayna Jain wrote: > > > On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: > > > > On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > > > > > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > > > > > handle the TPM2_RC_RETRY error. The loop retries the command after > > > > > sleeping for the specified time, which is incremented exponentially in > > > > > every iteration. This patch fixes the initial sleep to be the default > > > > > sleep time. > > > > > > > > I think I understand the code change but do not understand what the > > > > long description. > > > > > > It tells that the first sleep is delay_msec * 2 and not delay_msec. > > > > So the problem is that the loop doubles the time before sleeping > > for the first time. This is missing from the description. Please > > refine it in some way. > > Sure, how about replacing the last line of the patch description with: > Unfortunately, the loop doubles the time before sleeping, causing the > initial sleep to be doubled. This patch fixes the initial sleep time. > > If this change is acceptable, do you want to make the change or should Nayna > repost the patch? No need. I'll move on to testing. /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Sat, 2018-04-07 at 13:36 +0300, Jarkko Sakkinen wrote: > On Fri, Apr 06, 2018 at 02:03:37PM +0530, Nayna Jain wrote: > > On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: > > > On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > > > > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > > > > handle the TPM2_RC_RETRY error. The loop retries the command after > > > > sleeping for the specified time, which is incremented exponentially in > > > > every iteration. This patch fixes the initial sleep to be the default > > > > sleep time. > > > I think I understand the code change but do not understand what the > > > long description. > > > > It tells that the first sleep is delay_msec * 2 and not delay_msec. > > So the problem is that the loop doubles the time before sleeping > for the first time. This is missing from the description. Please > refine it in some way. Sure, how about replacing the last line of the patch description with: Unfortunately, the loop doubles the time before sleeping, causing the initial sleep to be doubled. This patch fixes the initial sleep time. If this change is acceptable, do you want to make the change or should Nayna repost the patch? thanks, Mimi
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Sat, 2018-04-07 at 13:36 +0300, Jarkko Sakkinen wrote: > On Fri, Apr 06, 2018 at 02:03:37PM +0530, Nayna Jain wrote: > > On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: > > > On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > > > > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > > > > handle the TPM2_RC_RETRY error. The loop retries the command after > > > > sleeping for the specified time, which is incremented exponentially in > > > > every iteration. This patch fixes the initial sleep to be the default > > > > sleep time. > > > I think I understand the code change but do not understand what the > > > long description. > > > > It tells that the first sleep is delay_msec * 2 and not delay_msec. > > So the problem is that the loop doubles the time before sleeping > for the first time. This is missing from the description. Please > refine it in some way. Sure, how about replacing the last line of the patch description with: Unfortunately, the loop doubles the time before sleeping, causing the initial sleep to be doubled. This patch fixes the initial sleep time. If this change is acceptable, do you want to make the change or should Nayna repost the patch? thanks, Mimi
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Fri, Apr 06, 2018 at 02:03:37PM +0530, Nayna Jain wrote: > On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: > > On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > > > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > > > handle the TPM2_RC_RETRY error. The loop retries the command after > > > sleeping for the specified time, which is incremented exponentially in > > > every iteration. This patch fixes the initial sleep to be the default > > > sleep time. > > I think I understand the code change but do not understand what the > > long description. > > It tells that the first sleep is delay_msec * 2 and not delay_msec. So the problem is that the loop doubles the time before sleeping for the first time. This is missing from the description. Please refine it in some way. /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Fri, Apr 06, 2018 at 02:03:37PM +0530, Nayna Jain wrote: > On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: > > On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > > > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > > > handle the TPM2_RC_RETRY error. The loop retries the command after > > > sleeping for the specified time, which is incremented exponentially in > > > every iteration. This patch fixes the initial sleep to be the default > > > sleep time. > > I think I understand the code change but do not understand what the > > long description. > > It tells that the first sleep is delay_msec * 2 and not delay_msec. So the problem is that the loop doubles the time before sleeping for the first time. This is missing from the description. Please refine it in some way. /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to handle the TPM2_RC_RETRY error. The loop retries the command after sleeping for the specified time, which is incremented exponentially in every iteration. This patch fixes the initial sleep to be the default sleep time. I think I understand the code change but do not understand what the long description. It tells that the first sleep is delay_msec * 2 and not delay_msec. Fixes: commit e2fb992d82c6 ("tpm: add retry logic") Signed-off-by: Nayna JainReviewed-by: Mimi Zohar --- drivers/char/tpm/tpm-interface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index c43a9e28995e..6201aab374e6 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -587,7 +587,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, */ if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST) break; - delay_msec *= 2; + Extra whitespace I left just for clarity, but if not needed then I can remove it. Thanks & Regards, - Nayna if (delay_msec > TPM2_DURATION_LONG) { if (rc == TPM2_RC_RETRY) dev_err(>dev, "in retry loop\n"); @@ -597,6 +597,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, break; } tpm_msleep(delay_msec); + delay_msec *= 2; memcpy(buf, save, save_size); } return ret; -- 2.13.6 /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On 04/05/2018 03:42 PM, Jarkko Sakkinen wrote: On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to handle the TPM2_RC_RETRY error. The loop retries the command after sleeping for the specified time, which is incremented exponentially in every iteration. This patch fixes the initial sleep to be the default sleep time. I think I understand the code change but do not understand what the long description. It tells that the first sleep is delay_msec * 2 and not delay_msec. Fixes: commit e2fb992d82c6 ("tpm: add retry logic") Signed-off-by: Nayna Jain Reviewed-by: Mimi Zohar --- drivers/char/tpm/tpm-interface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index c43a9e28995e..6201aab374e6 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -587,7 +587,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, */ if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST) break; - delay_msec *= 2; + Extra whitespace I left just for clarity, but if not needed then I can remove it. Thanks & Regards, - Nayna if (delay_msec > TPM2_DURATION_LONG) { if (rc == TPM2_RC_RETRY) dev_err(>dev, "in retry loop\n"); @@ -597,6 +597,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, break; } tpm_msleep(delay_msec); + delay_msec *= 2; memcpy(buf, save, save_size); } return ret; -- 2.13.6 /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > handle the TPM2_RC_RETRY error. The loop retries the command after > sleeping for the specified time, which is incremented exponentially in > every iteration. This patch fixes the initial sleep to be the default > sleep time. I think I understand the code change but do not understand what the long description. > > Fixes: commit e2fb992d82c6 ("tpm: add retry logic") > Signed-off-by: Nayna Jain> Reviewed-by: Mimi Zohar > --- > drivers/char/tpm/tpm-interface.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/char/tpm/tpm-interface.c > b/drivers/char/tpm/tpm-interface.c > index c43a9e28995e..6201aab374e6 100644 > --- a/drivers/char/tpm/tpm-interface.c > +++ b/drivers/char/tpm/tpm-interface.c > @@ -587,7 +587,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct > tpm_space *space, >*/ > if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST) > break; > - delay_msec *= 2; > + Extra whitespace > if (delay_msec > TPM2_DURATION_LONG) { > if (rc == TPM2_RC_RETRY) > dev_err(>dev, "in retry loop\n"); > @@ -597,6 +597,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct > tpm_space *space, > break; > } > tpm_msleep(delay_msec); > + delay_msec *= 2; > memcpy(buf, save, save_size); > } > return ret; > -- > 2.13.6 > /Jarkko
Re: [PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
On Mon, Apr 02, 2018 at 09:50:06PM +0530, Nayna Jain wrote: > Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to > handle the TPM2_RC_RETRY error. The loop retries the command after > sleeping for the specified time, which is incremented exponentially in > every iteration. This patch fixes the initial sleep to be the default > sleep time. I think I understand the code change but do not understand what the long description. > > Fixes: commit e2fb992d82c6 ("tpm: add retry logic") > Signed-off-by: Nayna Jain > Reviewed-by: Mimi Zohar > --- > drivers/char/tpm/tpm-interface.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/char/tpm/tpm-interface.c > b/drivers/char/tpm/tpm-interface.c > index c43a9e28995e..6201aab374e6 100644 > --- a/drivers/char/tpm/tpm-interface.c > +++ b/drivers/char/tpm/tpm-interface.c > @@ -587,7 +587,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct > tpm_space *space, >*/ > if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST) > break; > - delay_msec *= 2; > + Extra whitespace > if (delay_msec > TPM2_DURATION_LONG) { > if (rc == TPM2_RC_RETRY) > dev_err(>dev, "in retry loop\n"); > @@ -597,6 +597,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct > tpm_space *space, > break; > } > tpm_msleep(delay_msec); > + delay_msec *= 2; > memcpy(buf, save, save_size); > } > return ret; > -- > 2.13.6 > /Jarkko
[PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to handle the TPM2_RC_RETRY error. The loop retries the command after sleeping for the specified time, which is incremented exponentially in every iteration. This patch fixes the initial sleep to be the default sleep time. Fixes: commit e2fb992d82c6 ("tpm: add retry logic") Signed-off-by: Nayna JainReviewed-by: Mimi Zohar --- drivers/char/tpm/tpm-interface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index c43a9e28995e..6201aab374e6 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -587,7 +587,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, */ if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST) break; - delay_msec *= 2; + if (delay_msec > TPM2_DURATION_LONG) { if (rc == TPM2_RC_RETRY) dev_err(>dev, "in retry loop\n"); @@ -597,6 +597,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, break; } tpm_msleep(delay_msec); + delay_msec *= 2; memcpy(buf, save, save_size); } return ret; -- 2.13.6
[PATCH] tpm: moves the delay_msec increment after sleep in tpm_transmit()
Commit e2fb992d82c6 ("tpm: add retry logic") introduced a new loop to handle the TPM2_RC_RETRY error. The loop retries the command after sleeping for the specified time, which is incremented exponentially in every iteration. This patch fixes the initial sleep to be the default sleep time. Fixes: commit e2fb992d82c6 ("tpm: add retry logic") Signed-off-by: Nayna Jain Reviewed-by: Mimi Zohar --- drivers/char/tpm/tpm-interface.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c index c43a9e28995e..6201aab374e6 100644 --- a/drivers/char/tpm/tpm-interface.c +++ b/drivers/char/tpm/tpm-interface.c @@ -587,7 +587,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, */ if (rc == TPM2_RC_TESTING && cc == TPM2_CC_SELF_TEST) break; - delay_msec *= 2; + if (delay_msec > TPM2_DURATION_LONG) { if (rc == TPM2_RC_RETRY) dev_err(>dev, "in retry loop\n"); @@ -597,6 +597,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space, break; } tpm_msleep(delay_msec); + delay_msec *= 2; memcpy(buf, save, save_size); } return ret; -- 2.13.6