Re: [RFC bpf-next] bpf: document eBPF helpers and add a script to generate man page

2018-04-09 18:47 UTC-0700 ~ Alexei Starovoitov > On Mon, Apr 09, 2018 at 02:25:26PM +0100, Quentin Monnet wrote: >> >> Anyway, I am fine with keeping just signatures, descriptions and return >> values for now. I will submit a new version with only those items. > >

Re: [PATCH 00/32] docs/vm: convert to ReST format

Jon, Andrew, How do you suggest to continue with this? On Sun, Apr 01, 2018 at 09:38:58AM +0300, Mike Rapoport wrote: > (added akpm) > > On Thu, Mar 29, 2018 at 03:46:07PM -0600, Jonathan Corbet wrote: > > On Wed, 21 Mar 2018 21:22:16 +0200 > > Mike Rapoport wrote: > >

Re: [PATCH v2 7/9] trace_uprobe/sdt: Fix multiple update of same reference counter

Hi Ravi, On 04/10, Ravi Bangoria wrote: > > > and what if __mmu_notifier_register() fails simply because signal_pending() > > == T? > > see mm_take_all_locks(). > > > > at first glance this all look suspicious and sub-optimal, > > Yes. I should have added checks for failure cases. > Will fix

Re: [PATCH V2 3/9] dt-bindings: Tegra186 tachometer device tree bindings

On Mon, Apr 9, 2018 at 9:37 AM, Mikko Perttunen wrote: > > > On 04/09/2018 04:21 PM, Rob Herring wrote: >> >> On Mon, Apr 9, 2018 at 12:38 AM, Mikko Perttunen wrote: >>> >>> Rob, >> >> >> Please don't top post to lists. >> >>> this binding is for a specific IP

Re: [PATCH v11 1/4] arm64: KVM: export the capability to set guest SError syndrome

Hi Dongjiu Geng, On 09/04/18 22:36, Dongjiu Geng wrote: > Before user space injects a SError, it needs to know whether it can > specify the guest Exception Syndrome, so KVM should tell user space > whether it has such capability. (you could improve the commit message by briefly explaining

Re: [PATCH v11 2/4] arm/arm64: KVM: Add KVM_GET/SET_VCPU_EVENTS

Hi Dongjiu Geng, On 09/04/18 22:36, Dongjiu Geng wrote: > This new IOCTL exports user-invisible states related to SError. > Together with appropriate user space changes, it can inject > SError with specified syndrome to guest by setup kvm_vcpu_events > value. > Also it can support live

Re: [PATCH v11 0/4] set VSESR_EL2 by user space and support NOTIFY_SEI notification

Hi Dongjiu Geng, On 09/04/18 22:36, Dongjiu Geng wrote: > 1. Detect whether KVM can set set guest SError syndrome > 2. Support to Set VSESR_EL2 and inject SError by user space. > 3. Support live migration to keep SError pending state and VSESR_EL2 value. > 4. ACPI 6.1 adds support for NOTIFY_SEI

Re: [PATCH 2/3] mm: replace __HAVE_ARCH_PTE_SPECIAL

On 09/04/2018 22:08, David Rientjes wrote: > On Mon, 9 Apr 2018, Christoph Hellwig wrote: > >>> -#ifdef __HAVE_ARCH_PTE_SPECIAL >>> +#ifdef CONFIG_ARCH_HAS_PTE_SPECIAL >>> # define HAVE_PTE_SPECIAL 1 >>> #else >>> # define HAVE_PTE_SPECIAL 0 >> >> I'd say kill this odd indirection and just use

Re: [PATCH V2 3/9] dt-bindings: Tegra186 tachometer device tree bindings

On 04/10/2018 06:30 AM, Rob Herring wrote: On Mon, Apr 9, 2018 at 9:37 AM, Mikko Perttunen wrote: On 04/09/2018 04:21 PM, Rob Herring wrote: On Mon, Apr 9, 2018 at 12:38 AM, Mikko Perttunen wrote: Rob, Please don't top post to lists. this binding

[RFC bpf-next v2 0/8] bpf: document eBPF helpers and add a script to generate man page

eBPF helper functions can be called from within eBPF programs to perform a variety of tasks that would be otherwise hard or impossible to do with eBPF itself. There is a growing number of such helper functions in the kernel, but documentation is scarce. The main user space header file does contain

[RFC bpf-next v2 3/8] bpf: add documentation for eBPF helpers (12-22)

Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man page. The objective is to make the documentation

[RFC bpf-next v2 4/8] bpf: add documentation for eBPF helpers (23-32)

Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man page. The objective is to make the documentation

[PATCH v2 1/2] mm: introduce ARCH_HAS_PTE_SPECIAL

Currently the PTE special supports is turned on in per architecture header files. Most of the time, it is defined in arch/*/include/asm/pgtable.h depending or not on some other per architecture static definition. This patch introduce a new configuration variable to manage this directly in the

[PATCH v2 0/2] move __HAVE_ARCH_PTE_SPECIAL in Kconfig

The per architecture __HAVE_ARCH_PTE_SPECIAL is defined statically in the per architecture header files. This doesn't allow to make other configuration dependent on it. The first patch of this series is replacing __HAVE_ARCH_PTE_SPECIAL by CONFIG_ARCH_HAS_PTE_SPECIAL defined into the Kconfig

[PATCH v2 2/2] mm: remove odd HAVE_PTE_SPECIAL

Remove the additional define HAVE_PTE_SPECIAL and rely directly on CONFIG_ARCH_HAS_PTE_SPECIAL. There is no functional change introduced by this patch Signed-off-by: Laurent Dufour --- mm/memory.c | 23 ++- 1 file changed, 10 insertions(+), 13

Re: [PATCH v2 1/2] mm: introduce ARCH_HAS_PTE_SPECIAL

On Tue, Apr 10, 2018 at 05:25:50PM +0200, Laurent Dufour wrote: > arch/powerpc/include/asm/pte-common.h | 3 --- > arch/riscv/Kconfig | 1 + > arch/s390/Kconfig | 1 + You forgot to delete

Re: [PATCH v2 1/2] mm: introduce ARCH_HAS_PTE_SPECIAL

On 10/04/2018 18:09, Matthew Wilcox wrote: > On Tue, Apr 10, 2018 at 05:25:50PM +0200, Laurent Dufour wrote: >> arch/powerpc/include/asm/pte-common.h | 3 --- >> arch/riscv/Kconfig | 1 + >> arch/s390/Kconfig

[RFC 01/10] PCI: dwc: Add MSI-X callbacks handler

Changes the pcie_raise_irq function signature, namely the interrupt_num variable type from u8 to u16 to accommodate the MSI-X maximum interrupts of 2048. Implements a PCIe config space capability iterator function to search and save the MSI and MSI-X pointers. With this method the code becomes

Re: [RFC bpf-next v2 7/8] bpf: add documentation for eBPF helpers (51-57)

Quentin Monnet [Tue, 2018-04-10 07:43 -0700]: > + * int bpf_bind(struct bpf_sock_addr_kern *ctx, struct sockaddr *addr, int > addr_len) > + * Description > + * Bind the socket associated to *ctx* to the address pointed by > + * *addr*, of

Re: [RFC bpf-next v2 2/8] bpf: add documentation for eBPF helpers (01-11)

On Tue, Apr 10, 2018 at 03:41:51PM +0100, Quentin Monnet wrote: > Add documentation for eBPF helper functions to bpf.h user header file. > This documentation can be parsed with the Python script provided in > another commit of the patch series, in order to provide a RST document > that can later

Re: [RFC bpf-next v2 7/8] bpf: add documentation for eBPF helpers (51-57)

On 4/10/18 7:41 AM, Quentin Monnet wrote: Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man

[RFC 07/10] misc: pci_endpoint_test: Replace lower into upper case characters

Replaces lower into upper case characters in comments and debug printks. Signed-off-by: Gustavo Pimentel --- drivers/misc/pci_endpoint_test.c | 18 +- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/misc/pci_endpoint_test.c

[RFC 05/10] PCI: dwc: Add legacy interrupt callback handler

Adds a legacy interrupt callback handler. Currently Designware IP doesn't allow triggering the legacy interrupt. Signed-off-by: Gustavo Pimentel --- drivers/pci/dwc/pcie-designware-ep.c | 10 ++ drivers/pci/dwc/pcie-designware-plat.c | 3 +--

[PATCH] gpiolib: add hogs support for machine code

Board files constitute a significant part of the users of the legacy GPIO framework. In many cases they only export a line and set its desired value. We could use GPIO hogs for that like we do for DT and ACPI but there's no support for that in machine code. This patch proposes to extend the

[RFC bpf-next v2 5/8] bpf: add documentation for eBPF helpers (33-41)

Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man page. The objective is to make the documentation

[RFC bpf-next v2 6/8] bpf: add documentation for eBPF helpers (42-50)

Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man page. The objective is to make the documentation

[RFC bpf-next v2 7/8] bpf: add documentation for eBPF helpers (51-57)

Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man page. The objective is to make the documentation

[RFC bpf-next v2 1/8] bpf: add script and prepare bpf.h for new helpers documentation

Remove previous "overview" of eBPF helpers from user bpf.h header. Replace it by a comment explaining how to process the new documentation (to come in following patches) with a Python script to produce RST, then man page documentation. Also add the aforementioned Python script under scripts/. It

[RFC bpf-next v2 2/8] bpf: add documentation for eBPF helpers (01-11)

Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man page. The objective is to make the documentation

[RFC bpf-next v2 8/8] bpf: add documentation for eBPF helpers (58-64)

Add documentation for eBPF helper functions to bpf.h user header file. This documentation can be parsed with the Python script provided in another commit of the patch series, in order to provide a RST document that can later be converted into a man page. The objective is to make the documentation

Re: [PATCH v2 2/2] mm: remove odd HAVE_PTE_SPECIAL

On 10/04/2018 17:58, Robin Murphy wrote: > On 10/04/18 16:25, Laurent Dufour wrote: >> Remove the additional define HAVE_PTE_SPECIAL and rely directly on >> CONFIG_ARCH_HAS_PTE_SPECIAL. >> >> There is no functional change introduced by this patch >> >> Signed-off-by: Laurent Dufour

[RFC 04/10] PCI: dwc: MSI callbacks handler rework

Adds in pci_epc_set_msi function a maximum number of 32 interrupts validation. Removes duplicate defines located on pcie-designware.h file. Uses now the defines available on /include/uapi/linux/pci-regs.h file. Signed-off-by: Gustavo Pimentel ---

[RFC 02/10] PCI: cadence: Update cdns_pcie_ep_raise_irq function signature

Changes the cdns_pcie_ep_raise_irq function signature, namely the interrupt_num variable type from u8 to u16 to accommodate the MSI-X maximum interrupts of 2048. Signed-off-by: Gustavo Pimentel --- drivers/pci/cadence/pcie-cadence-ep.c | 2 +- 1 file changed, 1

[RFC 06/10] misc: pci_endpoint_test: Add MSI-X support

Adds the MSI-X support and updates driver documentation accordingly. Changes the driver parameter in order to allow the interruption type selection. Signed-off-by: Gustavo Pimentel --- Documentation/misc-devices/pci-endpoint-test.txt | 3 +

[RFC 10/10] tools: PCI: Add MSI-X support

Adds MSI-X support to the pcitest tool and modified the pcitest.sh script to accomodate this new type of interruption test. Signed-off-by: Gustavo Pimentel --- include/uapi/linux/pcitest.h | 1 + tools/pci/pcitest.c | 18 +-

Re: [PATCH] gpiolib: add hogs support for machine code

Hi Bartosz, I love your patch! Yet something to improve: [auto build test ERROR on gpio/for-next] [also build test ERROR on v4.16 next-20180410] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits

[PATCH v3 01/10] Documentations: dt-bindings: Add documents of generic PECI bus, adapter and client drivers

This commit adds documents of generic PECI bus, adapter and client drivers. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery

[PATCH v3 00/10] PECI device driver introduction

Introduction of the Platform Environment Control Interface (PECI) bus device driver. PECI is a one-wire bus interface that provides a communication channel between an Intel processor and chipset components to external monitoring or control devices. PECI is designed to support the following

[PATCH v3 09/10] drivers/hwmon: Add PECI hwmon client drivers

This commit adds PECI cputemp and dimmtemp hwmon drivers. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Cc: Alan

[PATCH v3 10/10] Add a maintainer for the PECI subsystem

This commit adds a maintainer information for the PECI subsystem. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery Cc:

Re: [PATCH 1/2] perf: riscv: preliminary RISC-V support

Alan, I merged SBI emulation for perf counters and config: https://github.com/riscv/riscv-pk/pull/98 You should be able to write these CSRs. Thanks, Alex On Mon, Apr 9, 2018 at 12:07 AM, Alan Kao wrote: > On Thu, Apr 05, 2018 at 09:47:50AM -0700, Palmer Dabbelt wrote:

[PATCH v3 07/10] Documentation: dt-bindings: Add documents for PECI hwmon client drivers

This commit adds dt-bindings documents for PECI cputemp and dimmtemp client drivers. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery

Re: [RFC bpf-next v2 1/8] bpf: add script and prepare bpf.h for new helpers documentation

On Tue, Apr 10, 2018 at 03:41:50PM +0100, Quentin Monnet wrote: > Remove previous "overview" of eBPF helpers from user bpf.h header. > Replace it by a comment explaining how to process the new documentation > (to come in following patches) with a Python script to produce RST, then > man page

[PATCH v3 03/10] drivers/peci: Add support for PECI bus driver core

This commit adds driver implementation for PECI bus core into linux driver framework. Signed-off-by: Jae Hyun Yoo Signed-off-by: Fengguang Wu Reviewed-by: Haiyue Wang Reviewed-by: James Feist

[PATCH v3 02/10] Documentations: ioctl: Add ioctl numbers for PECI subsystem

This commit Updates ioctl-number.txt to reflect ioctl numbers being used by the PECI subsystem. Signed-off-by: Jae Hyun Yoo Cc: Alan Cox Cc: Andrew Jeffery Cc: Andrew Lunn Cc: Andy Shevchenko

[PATCH v3 05/10] ARM: dts: aspeed: peci: Add PECI node

This commit adds PECI bus/adapter node of AST24xx/AST25xx into aspeed-g4 and aspeed-g5. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery

[PATCH v3 06/10] drivers/peci: Add a PECI adapter driver for Aspeed AST24xx/AST25xx

This commit adds PECI adapter driver implementation for Aspeed AST24xx/AST25xx. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery

[PATCH v3 08/10] Documentation: hwmon: Add documents for PECI hwmon client drivers

This commit adds hwmon documents for PECI cputemp and dimmtemp drivers. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery

[PATCH v3 04/10] Documentations: dt-bindings: Add a document of PECI adapter driver for Aspeed AST24xx/25xx SoCs

This commit adds a dt-bindings document of PECI adapter driver for Aspeed AST24xx/25xx SoCs. Signed-off-by: Jae Hyun Yoo Reviewed-by: Haiyue Wang Reviewed-by: James Feist Reviewed-by: Vernon Mauery

Re: [PATCH v2 2/2] mm: remove odd HAVE_PTE_SPECIAL

On 10/04/18 16:25, Laurent Dufour wrote: Remove the additional define HAVE_PTE_SPECIAL and rely directly on CONFIG_ARCH_HAS_PTE_SPECIAL. There is no functional change introduced by this patch Signed-off-by: Laurent Dufour --- mm/memory.c | 23

[RFC 08/10] PCI: endpoint: functions/pci-epf-test: Add MSI-X support

Adds driver's MSI-X support. Signed-off-by: Gustavo Pimentel --- drivers/pci/endpoint/functions/pci-epf-test.c | 87 +-- 1 file changed, 69 insertions(+), 18 deletions(-) diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c

[RFC 09/10] PCI: endpoint: functions/pci-epf-test: Replace lower into upper case characters

Replaces lower into upper case characters in comments and debug printks. Signed-off-by: Gustavo Pimentel --- drivers/pci/endpoint/functions/pci-epf-test.c | 26 +- 1 file changed, 13 insertions(+), 13 deletions(-) diff --git

Re: [RFC bpf-next v2 3/8] bpf: add documentation for eBPF helpers (12-22)

On Tue, Apr 10, 2018 at 03:41:52PM +0100, Quentin Monnet wrote: > Add documentation for eBPF helper functions to bpf.h user header file. > This documentation can be parsed with the Python script provided in > another commit of the patch series, in order to provide a RST document > that can later

Re: [PATCH v3 09/10] drivers/hwmon: Add PECI hwmon client drivers

On Tue, Apr 10, 2018 at 11:32:11AM -0700, Jae Hyun Yoo wrote: > This commit adds PECI cputemp and dimmtemp hwmon drivers. > > Signed-off-by: Jae Hyun Yoo > Reviewed-by: Haiyue Wang > Reviewed-by: James Feist

Re: [PATCH v2 1/2] mm: introduce ARCH_HAS_PTE_SPECIAL

On Tue, 10 Apr 2018 09:09:32 PDT (-0700), wi...@infradead.org wrote: On Tue, Apr 10, 2018 at 05:25:50PM +0200, Laurent Dufour wrote: arch/powerpc/include/asm/pte-common.h | 3 --- arch/riscv/Kconfig | 1 + arch/s390/Kconfig

[PATCH v2] gpiolib: add hogs support for machine code

Board files constitute a significant part of the users of the legacy GPIO framework. In many cases they only export a line and set its desired value. We could use GPIO hogs for that like we do for DT and ACPI but there's no support for that in machine code. This patch proposes to extend the

Re: [PATCH v2 1/2] mm: introduce ARCH_HAS_PTE_SPECIAL

On Tue, 10 Apr 2018, Laurent Dufour wrote: > > On Tue, Apr 10, 2018 at 05:25:50PM +0200, Laurent Dufour wrote: > >> arch/powerpc/include/asm/pte-common.h | 3 --- > >> arch/riscv/Kconfig | 1 + > >> arch/s390/Kconfig

Re: [PATCH] gpiolib: add hogs support for machine code

2018-04-10 19:05 GMT+02:00 kbuild test robot <l...@intel.com>: > Hi Bartosz, > > I love your patch! Yet something to improve: > > [auto build test ERROR on gpio/for-next] > [also build test ERROR on v4.16 next-20180410] > [if your patch is applied to the wrong git

Re: [PATCH v2 7/9] trace_uprobe/sdt: Fix multiple update of same reference counter

Hi Oleg, On 04/09/2018 06:59 PM, Oleg Nesterov wrote: > On 04/04, Ravi Bangoria wrote: >> +static void sdt_add_mm_list(struct trace_uprobe *tu, struct mm_struct *mm) >> +{ >> +struct mmu_notifier *mn; >> +struct sdt_mm_list *sml = kzalloc(sizeof(*sml), GFP_KERNEL); >> + >> +if (!sml)

Re: [PATCH v2 7/9] trace_uprobe/sdt: Fix multiple update of same reference counter

Hi Oleg, On 04/10/2018 04:36 PM, Oleg Nesterov wrote: > Hi Ravi, > > On 04/10, Ravi Bangoria wrote: >>> and what if __mmu_notifier_register() fails simply because signal_pending() >>> == T? >>> see mm_take_all_locks(). >>> >>> at first glance this all look suspicious and sub-optimal, >> Yes. I