Re: [PATCH] vTPM: set virtual device before passing to ibmvtpm_reset_crq
Hi Peter, Yes, it's a fix to a kernel dump caused by enabling both vtpm and kdump. On Tue, 2015-06-16 at 22:37 +0200, Peter Hüwe wrote: > Hey, > > Am Freitag, 22. Mai 2015, 19:23:02 schrieb Hon Ching(Vicky) Lo: > > tpm_ibmvtpm_probe() calls ibmvtpm_reset_crq(ibmvtpm) without having yet > > set the virtual device in the ibmvtpm structure. So in ibmvtpm_reset_crq, > > the phype call contains empty unit addresses, ibmvtpm->vdev->unit_address. > > > > Signed-off-by: Hon Ching(Vicky) Lo > > Signed-off-by: Joy Latten > > --- > > drivers/char/tpm/tpm_ibmvtpm.c |5 +++-- > > 1 files changed, 3 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/char/tpm/tpm_ibmvtpm.c > > b/drivers/char/tpm/tpm_ibmvtpm.c index 42ffa5e..27ebf95 100644 > > --- a/drivers/char/tpm/tpm_ibmvtpm.c > > +++ b/drivers/char/tpm/tpm_ibmvtpm.c > > @@ -578,6 +578,9 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, > > goto cleanup; > > } > > > > + ibmvtpm->dev = dev; > > + ibmvtpm->vdev = vio_dev; > > + > > crq_q = &ibmvtpm->crq_queue; > > crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL); > > if (!crq_q->crq_addr) { > > @@ -622,8 +625,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, > > > > crq_q->index = 0; > > > > - ibmvtpm->dev = dev; > > - ibmvtpm->vdev = vio_dev; > > TPM_VPRIV(chip) = (void *)ibmvtpm; > > > > spin_lock_init(&ibmvtpm->rtce_lock); > > Is this a fix for something? > does it need to go through stable? > > Thanks, > Peter > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] vTPM: set virtual device before passing to ibmvtpm_reset_crq
Hey, Am Freitag, 22. Mai 2015, 19:23:02 schrieb Hon Ching(Vicky) Lo: > tpm_ibmvtpm_probe() calls ibmvtpm_reset_crq(ibmvtpm) without having yet > set the virtual device in the ibmvtpm structure. So in ibmvtpm_reset_crq, > the phype call contains empty unit addresses, ibmvtpm->vdev->unit_address. > > Signed-off-by: Hon Ching(Vicky) Lo > Signed-off-by: Joy Latten > --- > drivers/char/tpm/tpm_ibmvtpm.c |5 +++-- > 1 files changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/char/tpm/tpm_ibmvtpm.c > b/drivers/char/tpm/tpm_ibmvtpm.c index 42ffa5e..27ebf95 100644 > --- a/drivers/char/tpm/tpm_ibmvtpm.c > +++ b/drivers/char/tpm/tpm_ibmvtpm.c > @@ -578,6 +578,9 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, > goto cleanup; > } > > + ibmvtpm->dev = dev; > + ibmvtpm->vdev = vio_dev; > + > crq_q = &ibmvtpm->crq_queue; > crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL); > if (!crq_q->crq_addr) { > @@ -622,8 +625,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, > > crq_q->index = 0; > > - ibmvtpm->dev = dev; > - ibmvtpm->vdev = vio_dev; > TPM_VPRIV(chip) = (void *)ibmvtpm; > > spin_lock_init(&ibmvtpm->rtce_lock); Is this a fix for something? does it need to go through stable? Thanks, Peter -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[Fwd: Re: [PATCH] vTPM: set virtual device before passing to ibmvtpm_reset_crq]
Hi Peter, Would it be possible for you to review and commit the following patch at your earliest convenience? Thanks in advance! Forwarded Message From: Ashley Lai To: Hon Ching(Vicky) Lo Cc: tpmdd-de...@lists.sourceforge.net, Peter Huewe , Ashley Lai , Vicky Lo , linux-kernel@vger.kernel.org, Joy Latten Subject: Re: [PATCH] vTPM: set virtual device before passing to ibmvtpm_reset_crq Date: Tue, 2 Jun 2015 00:50:43 -0500 (CDT) Thanks for the patch. Looks good to me. Reviewed-by: Ashley Lai --Ashley Lai On Fri, 22 May 2015, Hon Ching(Vicky) Lo wrote: > tpm_ibmvtpm_probe() calls ibmvtpm_reset_crq(ibmvtpm) without having yet > set the virtual device in the ibmvtpm structure. So in ibmvtpm_reset_crq, > the phype call contains empty unit addresses, ibmvtpm->vdev->unit_address. > > Signed-off-by: Hon Ching(Vicky) Lo > Signed-off-by: Joy Latten > --- > drivers/char/tpm/tpm_ibmvtpm.c |5 +++-- > 1 files changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c > index 42ffa5e..27ebf95 100644 > --- a/drivers/char/tpm/tpm_ibmvtpm.c > +++ b/drivers/char/tpm/tpm_ibmvtpm.c > @@ -578,6 +578,9 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, > goto cleanup; > } > > + ibmvtpm->dev = dev; > + ibmvtpm->vdev = vio_dev; > + > crq_q = &ibmvtpm->crq_queue; > crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL); > if (!crq_q->crq_addr) { > @@ -622,8 +625,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, > > crq_q->index = 0; > > - ibmvtpm->dev = dev; > - ibmvtpm->vdev = vio_dev; > TPM_VPRIV(chip) = (void *)ibmvtpm; > > spin_lock_init(&ibmvtpm->rtce_lock); > -- > 1.7.1 > > Best Regards, Vicky -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] vTPM: set virtual device before passing to ibmvtpm_reset_crq
Thanks for the patch. Looks good to me. Reviewed-by: Ashley Lai --Ashley Lai On Fri, 22 May 2015, Hon Ching(Vicky) Lo wrote: tpm_ibmvtpm_probe() calls ibmvtpm_reset_crq(ibmvtpm) without having yet set the virtual device in the ibmvtpm structure. So in ibmvtpm_reset_crq, the phype call contains empty unit addresses, ibmvtpm->vdev->unit_address. Signed-off-by: Hon Ching(Vicky) Lo Signed-off-by: Joy Latten --- drivers/char/tpm/tpm_ibmvtpm.c |5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c index 42ffa5e..27ebf95 100644 --- a/drivers/char/tpm/tpm_ibmvtpm.c +++ b/drivers/char/tpm/tpm_ibmvtpm.c @@ -578,6 +578,9 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, goto cleanup; } + ibmvtpm->dev = dev; + ibmvtpm->vdev = vio_dev; + crq_q = &ibmvtpm->crq_queue; crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL); if (!crq_q->crq_addr) { @@ -622,8 +625,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, crq_q->index = 0; - ibmvtpm->dev = dev; - ibmvtpm->vdev = vio_dev; TPM_VPRIV(chip) = (void *)ibmvtpm; spin_lock_init(&ibmvtpm->rtce_lock); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH] vTPM: set virtual device before passing to ibmvtpm_reset_crq
tpm_ibmvtpm_probe() calls ibmvtpm_reset_crq(ibmvtpm) without having yet set the virtual device in the ibmvtpm structure. So in ibmvtpm_reset_crq, the phype call contains empty unit addresses, ibmvtpm->vdev->unit_address. Signed-off-by: Hon Ching(Vicky) Lo Signed-off-by: Joy Latten --- drivers/char/tpm/tpm_ibmvtpm.c |5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c index 42ffa5e..27ebf95 100644 --- a/drivers/char/tpm/tpm_ibmvtpm.c +++ b/drivers/char/tpm/tpm_ibmvtpm.c @@ -578,6 +578,9 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, goto cleanup; } + ibmvtpm->dev = dev; + ibmvtpm->vdev = vio_dev; + crq_q = &ibmvtpm->crq_queue; crq_q->crq_addr = (struct ibmvtpm_crq *)get_zeroed_page(GFP_KERNEL); if (!crq_q->crq_addr) { @@ -622,8 +625,6 @@ static int tpm_ibmvtpm_probe(struct vio_dev *vio_dev, crq_q->index = 0; - ibmvtpm->dev = dev; - ibmvtpm->vdev = vio_dev; TPM_VPRIV(chip) = (void *)ibmvtpm; spin_lock_init(&ibmvtpm->rtce_lock); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/