; sdev = NULL;
>
> - if (sdev && sdev->ops && sdev->ops->fault_cb) {
> - int rwxp = (req->rd_req << 3) | (req->wr_req << 2) |
> - (req->exe_req <
ess = (u64)req->addr << VTD_PAGE_SHIFT;
> if (!req->pasid_present) {
> @@ -649,11 +719,7 @@ static irqreturn_t prq_event_thread(int irq, void *d)
> if (WARN_ON(>list == >devs))
> sdev = NULL;
>
> - if
Hi,
On 11/18/2017 02:55 AM, Jacob Pan wrote:
> Currently, when device DMA faults are detected by IOMMU the fault
> reasons are printed but the driver of the offending device is
"... but the driver of the offending device is not involved in ..."
Best regards,
Lu Baolu
>
Hi,
On 11/18/2017 02:55 AM, Jacob Pan wrote:
> Currently, when device DMA faults are detected by IOMMU the fault
> reasons are printed but the driver of the offending device is
"... but the driver of the offending device is not involved in ..."
Best regards,
Lu Baolu
>
gt; +EXPORT_SYMBOL_GPL(iommu_unregister_device_fault_handler);
> +
> +
> +int iommu_report_device_fault(struct device *dev, struct iommu_fault_event
> *evt)
> +{
> + /* we only report device fault if there is a handler registered */
> + if (!dev->iommu_param || !dev-&
;iommu_param;
> +
> + if (!idata)
> + return -EINVAL;
> +
> + kfree(idata->fault_param);
> + idata->fault_param = NULL;
> + put_device(dev);
> +
> + return 0;
> +}
> +EXPORT_SYMBOL_GPL(iommu_unregister_device_fault_handler);
ed, which should be set to 0.
> + */
> + if (!ecap_dit(info->iommu->ecap))
> + info->pfsid = 0;
> + else if (pdev && pdev->is_virtfn) {
> + if (ecap_dit(info->iommu->ecap))
Isn't this condition always true when it comes here
if (!ecap_dit(info->iommu->ecap))
> + info->pfsid = 0;
> + else if (pdev && pdev->is_virtfn) {
> + if (ecap_dit(info->iommu->ecap))
Isn't this condition always true when it comes here?
Best regards,
Lu Baolu
> +
int iommu_prot)
> @@ -5304,7 +5481,7 @@ static int intel_iommu_bind_pasid_table(struct
> iommu_domain *domain,
> iommu = device_to_iommu(dev, , );
> if (!iommu)
> return -ENODEV;
> - /* VT-d spec 9.4 says pasid table size is encoded as 2^(x+5) */
&
_table(struct
> iommu_domain *domain,
> iommu = device_to_iommu(dev, , );
> if (!iommu)
> return -ENODEV;
> - /* VT-d spec 9.4 says pasid table size is encoded as 2^(x+5) */
> + /* VT-d spec section 9.4 says pasid table size is encoded as 2^(x+5) */
Hi Johan,
On 11/28/2017 05:01 PM, Johan Hovold wrote:
> On Tue, Nov 28, 2017 at 12:40:59PM +0800, Lu Baolu wrote:
>> USB vendor id and product id for Linux USB Debug Target is added.
>>
>> Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
>> ---
>> driv
Hi Johan,
On 11/28/2017 05:01 PM, Johan Hovold wrote:
> On Tue, Nov 28, 2017 at 12:40:59PM +0800, Lu Baolu wrote:
>> USB vendor id and product id for Linux USB Debug Target is added.
>>
>> Signed-off-by: Lu Baolu
>> ---
>> drivers/usb/serial/usb_debug.c | 2 ++
Hi Felipe,
On 11/28/2017 04:05 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>> The kernel FIFO implementation, kfifo, provides interfaces to manipulate
>> a first-in-first-out circular buffer. Use kfifo instead of the homemade
>>
Hi Felipe,
On 11/28/2017 04:05 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> The kernel FIFO implementation, kfifo, provides interfaces to manipulate
>> a first-in-first-out circular buffer. Use kfifo instead of the homemade
>> one to make the cod
Hi,
On 11/28/2017 03:29 PM, Greg Kroah-Hartman wrote:
> On Tue, Nov 28, 2017 at 12:52:24PM +0800, Lu Baolu wrote:
>> This corrects the endpiont type value set to the DbC bulk in endpoint.
>> The previous value doesn't cause any problems because that we now only
>> use the b
Hi,
On 11/28/2017 03:29 PM, Greg Kroah-Hartman wrote:
> On Tue, Nov 28, 2017 at 12:52:24PM +0800, Lu Baolu wrote:
>> This corrects the endpiont type value set to the DbC bulk in endpoint.
>> The previous value doesn't cause any problems because that we now only
>> use the b
This corrects the endpiont type value set to the DbC bulk in endpoint.
The previous value doesn't cause any problems because that we now only
use the bulk out endpoint. Set the hardware with the correct value any
way.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/earl
This corrects the endpiont type value set to the DbC bulk in endpoint.
The previous value doesn't cause any problems because that we now only
use the bulk out endpoint. Set the hardware with the correct value any
way.
Signed-off-by: Lu Baolu
---
drivers/usb/early/xhci-dbc.c | 2 +-
1 file
The kernel FIFO implementation, kfifo, provides interfaces to manipulate
a first-in-first-out circular buffer. Use kfifo instead of the homemade
one to make the code more concise and readable.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/gadget/function/u_serial.c
The kernel FIFO implementation, kfifo, provides interfaces to manipulate
a first-in-first-out circular buffer. Use kfifo instead of the homemade
one to make the code more concise and readable.
Signed-off-by: Lu Baolu
---
drivers/usb/gadget/function/u_serial.c | 192
USB vendor id and product id for Linux USB Debug Target is added.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/serial/usb_debug.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index ab5a2ac..4
USB vendor id and product id for Linux USB Debug Target is added.
Signed-off-by: Lu Baolu
---
drivers/usb/serial/usb_debug.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index ab5a2ac..47636b6 100644
--- a/drivers/usb
; + if (!db->buf_buf)
>>> + return -ENOMEM;
>>> +
>>> + db->buf_size = size;
>>> + db->buf_put = db->buf_buf;
>>> + db->buf_get = db->buf_buf;
>>> +
>>> + return 0;
>>> +}
> you may wanna have a look at kfifo.
>
Yeah! kfifo gives me exactly what I want here.
I will replace it with kfifo. Thank you.
Best regards,
Lu Baolu
return -ENOMEM;
>>> +
>>> + db->buf_size = size;
>>> + db->buf_put = db->buf_buf;
>>> + db->buf_get = db->buf_buf;
>>> +
>>> + return 0;
>>> +}
> you may wanna have a look at kfifo.
>
Yeah! kfifo gives me exactly what I want here.
I will replace it with kfifo. Thank you.
Best regards,
Lu Baolu
Hi,
On 11/07/2017 04:13 AM, Alex Williamson wrote:
> On Thu, 19 Oct 2017 08:39:14 +0800
> Lu Baolu <baolu...@linux.intel.com> wrote:
>
>> intel_svm_alloc_pasid_tables() might return an error but never be
>> checked by the callers. Later when intel_svm_bind_mm() is cal
Hi,
On 11/07/2017 04:13 AM, Alex Williamson wrote:
> On Thu, 19 Oct 2017 08:39:14 +0800
> Lu Baolu wrote:
>
>> intel_svm_alloc_pasid_tables() might return an error but never be
>> checked by the callers. Later when intel_svm_bind_mm() is called,
>> there are no ch
;sta...@vger.kernel.org> # v4.12+
Cc: Johan Hovold <jo...@kernel.org>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/serial/usb_debug.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb
# v4.12+
Cc: Johan Hovold
Signed-off-by: Lu Baolu
---
drivers/usb/serial/usb_debug.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index 12f4c5a..48f285a 100644
--- a/drivers/usb/serial/usb_debug.c
+++
a
valid one. The description strings are changed accordingly.
This patch should be back-ported to kernels as old as v4.12,
that contain the commit aeb9dd1de98c ("usb/early: Add driver
for xhci debug capability").
Cc: <sta...@vger.kernel.org> # v4.12+
Signed-off-by: Lu Baolu <baolu
a
valid one. The description strings are changed accordingly.
This patch should be back-ported to kernels as old as v4.12,
that contain the commit aeb9dd1de98c ("usb/early: Add driver
for xhci debug capability").
Cc: # v4.12+
Signed-off-by: Lu Baolu
---
drivers/usb/early/xhci-dbc.h | 6
Hi,
On 11/06/2017 04:00 PM, Greg Kroah-Hartman wrote:
> On Mon, Nov 06, 2017 at 08:35:41AM +0800, Lu Baolu wrote:
>> Hi,
>>
>> On 11/03/2017 02:27 PM, Greg Kroah-Hartman wrote:
>>> On Fri, Nov 03, 2017 at 08:45:46AM +0800, Lu Baolu wrote:
>>>> Hi,
&g
Hi,
On 11/06/2017 04:00 PM, Greg Kroah-Hartman wrote:
> On Mon, Nov 06, 2017 at 08:35:41AM +0800, Lu Baolu wrote:
>> Hi,
>>
>> On 11/03/2017 02:27 PM, Greg Kroah-Hartman wrote:
>>> On Fri, Nov 03, 2017 at 08:45:46AM +0800, Lu Baolu wrote:
>>>> Hi,
&g
Hi,
On 11/03/2017 02:27 PM, Greg Kroah-Hartman wrote:
> On Fri, Nov 03, 2017 at 08:45:46AM +0800, Lu Baolu wrote:
>> Hi,
>>
>> On 11/03/2017 12:51 AM, Greg Kroah-Hartman wrote:
>>> On Thu, Nov 02, 2017 at 12:38:57PM +0200, Felipe Balbi wrote:
>>>>
Hi,
On 11/03/2017 02:27 PM, Greg Kroah-Hartman wrote:
> On Fri, Nov 03, 2017 at 08:45:46AM +0800, Lu Baolu wrote:
>> Hi,
>>
>> On 11/03/2017 12:51 AM, Greg Kroah-Hartman wrote:
>>> On Thu, Nov 02, 2017 at 12:38:57PM +0200, Felipe Balbi wrote:
>>>>&g
;> >> > and disabling of the debug capability.
>>>>>>> > >> >> >
>>>>>>> > >> >> > When the debug capability is enabled, it will present a debug
>>>>>>> > >> >> &g
y.
>>>>>>> > >> >> >
>>>>>>> > >> >> > When the debug capability is enabled, it will present a debug
>>>>>>> > >> >> > device
>>>>>>> > >> >> >
Hi Greg,
On 09/05/2017 09:58 AM, Lu Baolu wrote:
> xHCI compatible USB host controllers(i.e. super-speed USB3 controllers)
> can be implemented with the Debug Capability(DbC). It presents a debug
> device which is fully compliant with the USB framework and provides the
> equivalent of
Hi Greg,
On 09/05/2017 09:58 AM, Lu Baolu wrote:
> xHCI compatible USB host controllers(i.e. super-speed USB3 controllers)
> can be implemented with the Debug Capability(DbC). It presents a debug
> device which is fully compliant with the USB framework and provides the
> equivalent of
> On 05.09.2017 04:58, Lu Baolu wrote:
>> xHCI compatible USB host controllers(i.e. super-speed USB3 controllers)
>> can be implemented with the Debug Capability(DbC). It presents a debug
>> device which is fully compliant with the USB framework and provides the
>> equi
> On 05.09.2017 04:58, Lu Baolu wrote:
>> xHCI compatible USB host controllers(i.e. super-speed USB3 controllers)
>> can be implemented with the Debug Capability(DbC). It presents a debug
>> device which is fully compliant with the USB framework and provides the
>> equi
Hi Yi,
On 10/19/2017 02:40 PM, Liu, Yi L wrote:
>
>> -Original Message-
>> From: iommu-boun...@lists.linux-foundation.org [mailto:iommu-
>> boun...@lists.linux-foundation.org] On Behalf Of Lu Baolu
>> Sent: Thursday, October 19, 2017 8:39 AM
>> To: j..
Hi Yi,
On 10/19/2017 02:40 PM, Liu, Yi L wrote:
>
>> -Original Message-
>> From: iommu-boun...@lists.linux-foundation.org [mailto:iommu-
>> boun...@lists.linux-foundation.org] On Behalf Of Lu Baolu
>> Sent: Thursday, October 19, 2017 8:39 AM
>> To: j..
intel_svm_alloc_pasid_tables() might return an error but never be
checked by the callers. Later when intel_svm_bind_mm() is called,
there are no checks for valid pasid tables before enabling them.
Signed-off-by: Ashok Raj <ashok@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.
intel_svm_alloc_pasid_tables() might return an error but never be
checked by the callers. Later when intel_svm_bind_mm() is called,
there are no checks for valid pasid tables before enabling them.
Signed-off-by: Ashok Raj
Signed-off-by: Lu Baolu
---
drivers/iommu/intel-svm.c | 2 +-
1 file
In intel_svm_unbind_mm(), pasid table entry must be cleared during
svm free. Otherwise, hardware may be set up with a wild pointer.
Suggested-by: Ashok Raj <ashok@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/iommu/intel-svm.c | 2 ++
1 file changed,
In intel_svm_unbind_mm(), pasid table entry must be cleared during
svm free. Otherwise, hardware may be set up with a wild pointer.
Suggested-by: Ashok Raj
Signed-off-by: Lu Baolu
---
drivers/iommu/intel-svm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iommu/intel-svm.c b
Currently Page Request Overflow bit in IOMMU Fault Status register
is not cleared. Not clearing this bit would mean that any future
page-request is going to be automatically dropped by IOMMU.
Suggested-by: Ashok Raj <ashok@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.
Currently Page Request Overflow bit in IOMMU Fault Status register
is not cleared. Not clearing this bit would mean that any future
page-request is going to be automatically dropped by IOMMU.
Suggested-by: Ashok Raj
Signed-off-by: Lu Baolu
---
drivers/iommu/dmar.c| 3 ++-
include
The devices running at SuperSpeedPlus speed are also LPM capable.
Apply usb3 hardware LPM attributes to those devices as well.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/core/sysfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/us
The devices running at SuperSpeedPlus speed are also LPM capable.
Apply usb3 hardware LPM attributes to those devices as well.
Signed-off-by: Lu Baolu
---
drivers/usb/core/sysfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core
Update Documentation/driver-api/usb/usb3-debug-port.rst. This update
includes the guide for using xHCI debug capability based TTY serial
link.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/driver-api/usb/usb3-debug-port.rst | 68
1 file chang
Update Documentation/driver-api/usb/usb3-debug-port.rst. This update
includes the guide for using xHCI debug capability based TTY serial
link.
Signed-off-by: Lu Baolu
---
Documentation/driver-api/usb/usb3-debug-port.rst | 68
1 file changed, 68 insertions(+)
diff --git
This patch makes some static functions global to avoid duplications
in different files. These functions can be used in the implementation
of xHCI debug capability. There is no functional change.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-mem.c
.
Hence it can be remote accessed by a debug host. Another use case can
probably be found in servers. It provides a peer-to-peer USB link
between two host-only machines. This provides a reasonable out-of-band
communication method between two servers.
Signed-off-by: Lu Baolu <baolu...@linux.intel.
This patch makes some static functions global to avoid duplications
in different files. These functions can be used in the implementation
of xHCI debug capability. There is no functional change.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-mem.c | 94
.
Hence it can be remote accessed by a debug host. Another use case can
probably be found in servers. It provides a peer-to-peer USB link
between two host-only machines. This provides a reasonable out-of-band
communication method between two servers.
Signed-off-by: Lu Baolu
---
.../ABI/testing/sysfs
communication method between two servers.
Best regards,
Lu Baolu
---
Change log:
v1->v2:
- Add a new patch to move u_serial.c from drivers/usb/gadget/function
to drivers/usb/common/ and move u_serial.h to include/linux/usb/.
v2->v3:
- Remove the use of u_serial and add a new tt
communication method between two servers.
Best regards,
Lu Baolu
---
Change log:
v1->v2:
- Add a new patch to move u_serial.c from drivers/usb/gadget/function
to drivers/usb/common/ and move u_serial.h to include/linux/usb/.
v2->v3:
- Remove the use of u_serial and add a new tt
Hi,
On 08/18/2017 09:31 PM, Mathias Nyman wrote:
> On 16.08.2017 05:15, Lu Baolu wrote:
>> Hi,
>>
>> On 08/15/2017 07:30 PM, Mathias Nyman wrote:
>>> On 11.08.2017 05:41, Lu Baolu wrote:
>>>> Xhci driver handles USB transaction errors on transfer events
Hi,
On 08/18/2017 09:31 PM, Mathias Nyman wrote:
> On 16.08.2017 05:15, Lu Baolu wrote:
>> Hi,
>>
>> On 08/15/2017 07:30 PM, Mathias Nyman wrote:
>>> On 11.08.2017 05:41, Lu Baolu wrote:
>>>> Xhci driver handles USB transaction errors on transfer events
ecking virt dev for test mode in PATCH 1/5.
v3->v4:
- Resolve xhci->mutex locking issue in 5/5.
Lu Baolu (5):
usb: xhci: Disable slot even virt-dev is null
usb: xhci: Fix potential memory leak in xhci_disable_slot()
usb: xhci: Fix memory leak when xhci_disable_slot() returns error
ecking virt dev for test mode in PATCH 1/5.
v3->v4:
- Resolve xhci->mutex locking issue in 5/5.
Lu Baolu (5):
usb: xhci: Disable slot even virt-dev is null
usb: xhci: Fix potential memory leak in xhci_disable_slot()
usb: xhci: Fix memory leak when xhci_disable_slot() returns error
m>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-hub.c | 2 +-
drivers/usb/host/xhci.c | 30 +-
drivers/usb/host/xhci.h | 3 +--
3 files changed, 11 insertions(+), 24 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b
pointer, but xhci_disable_slot()
frees it when it detects a dead host.
This patch fixes these two problems by removing the command parameter
from xhci_disable_slot().
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
--
the responsibilities to
free the slot related data structure. Otherwise, memory leakage
happens.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/
c: Guoqing Zhang <guoqing.zh...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-hub.c | 3 +++
drivers/usb/host/xhci.c | 4
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xh
the responsibilities to
free the slot related data structure. Otherwise, memory leakage
happens.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index cb2461a..2df601e 100644
c: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-hub.c | 3 +++
drivers/usb/host/xhci.c | 4
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 00721e8..6fcb98d 100644
--- a/drivers/usb/host/xhci-h
to a dead host.
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang <guoqing.zh...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --
to a dead host.
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2df601
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman <mathias.ny...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/driv
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index d6b728d..c8a64d2
Hi,
On 08/15/2017 07:30 PM, Mathias Nyman wrote:
> On 11.08.2017 05:41, Lu Baolu wrote:
>> Xhci driver handles USB transaction errors on transfer events,
>> but transaction errors are possible on address device command
>> completion events as well.
>>
>> The
Hi,
On 08/15/2017 07:30 PM, Mathias Nyman wrote:
> On 11.08.2017 05:41, Lu Baolu wrote:
>> Xhci driver handles USB transaction errors on transfer events,
>> but transaction errors are possible on address device command
>> completion events as well.
>>
>> The
m>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-hub.c | 2 +-
drivers/usb/host/xhci.c | 30 +-
drivers/usb/host/xhci.h | 3 +--
3 files changed, 11 insertions(+), 24 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b
pointer, but xhci_disable_slot()
frees it when it detects a dead host.
This patch fixes these two problems by removing the command parameter
from xhci_disable_slot().
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
--
ecking virt dev for test mode in PATCH 1/5.
Lu Baolu (5):
usb: xhci: Disable slot even virt-dev is null
usb: xhci: Fix potential memory leak in xhci_disable_slot()
usb: xhci: Fix memory leak when xhci_disable_slot() returns error
usb: xhci: Return error when host is dead in xhci_disabl
ecking virt dev for test mode in PATCH 1/5.
Lu Baolu (5):
usb: xhci: Disable slot even virt-dev is null
usb: xhci: Fix potential memory leak in xhci_disable_slot()
usb: xhci: Fix memory leak when xhci_disable_slot() returns error
usb: xhci: Return error when host is dead in xhci_disabl
the responsibilities to
free the slot related data structure. Otherwise, memory leakage
happens.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/
c: Guoqing Zhang <guoqing.zh...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-hub.c | 3 +++
drivers/usb/host/xhci.c | 4
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xh
the responsibilities to
free the slot related data structure. Otherwise, memory leakage
happens.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index cb2461a..2df601e 100644
c: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-hub.c | 3 +++
drivers/usb/host/xhci.c | 4
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 00721e8..6fcb98d 100644
--- a/drivers/usb/host/xhci-h
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman <mathias.ny...@linux.intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/driv
/?l=linux-usb=149362010728921=2
http://marc.info/?l=linux-usb=149252752825755=2
Suggested-by: Mathias Nyman
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index d6b728d..95780f8 100644
to a dead host.
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang <guoqing.zh...@intel.com>
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --
to a dead host.
Fixes: f9e609b82479 ("usb: xhci: Add helper function xhci_disable_slot().")
Cc: Guoqing Zhang
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2df601
Hi,
On 08/10/2017 06:00 PM, Mathias Nyman wrote:
> On 10.08.2017 03:35, Lu Baolu wrote:
>> Hi,
>>
>> On 08/09/2017 03:58 PM, Mathias Nyman wrote:
>>> On 27.07.2017 05:21, Lu Baolu wrote:
>>>> xhci_disable_slot() is a helper for disabling a slot when a de
Hi,
On 08/10/2017 06:00 PM, Mathias Nyman wrote:
> On 10.08.2017 03:35, Lu Baolu wrote:
>> Hi,
>>
>> On 08/09/2017 03:58 PM, Mathias Nyman wrote:
>>> On 27.07.2017 05:21, Lu Baolu wrote:
>>>> xhci_disable_slot() is a helper for disabling a slot when a de
Hi,
On 08/09/2017 03:58 PM, Mathias Nyman wrote:
> On 27.07.2017 05:21, Lu Baolu wrote:
>> xhci_disable_slot() is a helper for disabling a slot when a device
>> goes away or recovers from error situations. Currently, it checks
>> the corespoding virt-dev pointer and returns
Hi,
On 08/09/2017 03:58 PM, Mathias Nyman wrote:
> On 27.07.2017 05:21, Lu Baolu wrote:
>> xhci_disable_slot() is a helper for disabling a slot when a device
>> goes away or recovers from error situations. Currently, it checks
>> the corespoding virt-dev pointer and returns
Hi,
On 08/08/2017 02:14 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>>> Lu Baolu <baolu...@linux.intel.com> writes:
>>>> The component u_serial provides a glue layer between TTY layer
>>>> and a U
Hi,
On 08/08/2017 02:14 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>>> Lu Baolu writes:
>>>> The component u_serial provides a glue layer between TTY layer
>>>> and a USB gadget device needed to provide a basic serial port
>>>>
Hi,
On 08/07/2017 04:13 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu <baolu...@linux.intel.com> writes:
>> The component u_serial provides a glue layer between TTY layer
>> and a USB gadget device needed to provide a basic serial port
>> functionality. Currently, u_
Hi,
On 08/07/2017 04:13 PM, Felipe Balbi wrote:
> Hi,
>
> Lu Baolu writes:
>> The component u_serial provides a glue layer between TTY layer
>> and a USB gadget device needed to provide a basic serial port
>> functionality. Currently, u_serial sits under gad
Update Documentation/driver-api/usb/usb3-debug-port.rst. This update
includes the guide for using xHCI debug capability based TTY serial
link.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
Documentation/driver-api/usb/usb3-debug-port.rst | 68
1 file chang
Update Documentation/driver-api/usb/usb3-debug-port.rst. This update
includes the guide for using xHCI debug capability based TTY serial
link.
Signed-off-by: Lu Baolu
---
Documentation/driver-api/usb/usb3-debug-port.rst | 68
1 file changed, 68 insertions(+)
diff --git
This patch makes some static functions global to avoid duplications
in different files. These functions can be used in the implementation
of xHCI debug capability. There is no functional change.
Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/host/xhci-mem.c
This patch makes some static functions global to avoid duplications
in different files. These functions can be used in the implementation
of xHCI debug capability. There is no functional change.
Signed-off-by: Lu Baolu
---
drivers/usb/host/xhci-mem.c | 94
.
Hence it can be remote accessed by a debug host. Another use case can
probably be found in servers. It provides a peer-to-peer USB link
between two host-only machines. This provides a reasonable out-of-band
communication method between two servers.
Signed-off-by: Lu Baolu <baolu...@linux.intel.
-off-by: Lu Baolu <baolu...@linux.intel.com>
---
drivers/usb/Kconfig|3 +
drivers/usb/Makefile |3 +-
drivers/usb/common/Makefile|1 +
drivers/usb/common/u_serial.c | 1604 +++
drivers/usb/
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