Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (7bed1455) · Commits · 戴 / test

Documentation/ABI/testing/dev-kmsg

+0 −5

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		@@ -56,11 +56,6 @@ Description: The /dev/kmsg character device node provides userspace access
		seek after the last record available at the time
		the last SYSLOG_ACTION_CLEAR was issued.

		Due to the record nature of this interface with a "read all"
		behavior and the specific positions each seek operation sets,
		SEEK_CUR is not supported, returning -ESPIPE (invalid seek) to
		errno whenever requested.

		The output format consists of a prefix carrying the syslog
		prefix including priority and facility, the 64 bit message
		sequence number and the monotonic timestamp in microseconds,

0 → 100644

+27 −0

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		What: /sys/bus/nd/devices/nmemX/papr/flags
		Date: Apr, 2020
		KernelVersion: v5.8
		Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-nvdimm@lists.01.org,
		Description:
		(RO) Report flags indicating various states of a
		papr-pmem NVDIMM device. Each flag maps to a one or
		more bits set in the dimm-health-bitmap retrieved in
		response to H_SCM_HEALTH hcall. The details of the bit
		flags returned in response to this hcall is available
		at 'Documentation/powerpc/papr_hcalls.rst' . Below are
		the flags reported in this sysfs file:

		* "not_armed" : Indicates that NVDIMM contents will not
		survive a power cycle.
		* "flush_fail" : Indicates that NVDIMM contents
		couldn't be flushed during last
		shut-down event.
		* "restore_fail": Indicates that NVDIMM contents
		couldn't be restored during NVDIMM
		initialization.
		* "encrypted" : NVDIMM contents are encrypted.
		* "smart_notify": There is health event for the NVDIMM.
		* "scrubbed" : Indicating that contents of the
		NVDIMM have been scrubbed.
		* "locked" : Indicating that NVDIMM contents cant
		be modified until next power cycle.

+3 −3

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		@@ -186,7 +186,7 @@ prctl(PR_SVE_SET_VL, unsigned long arg)

		flags:

		PR_SVE_SET_VL_INHERIT
		PR_SVE_VL_INHERIT

		Inherit the current vector length across execve(). Otherwise, the
		vector length is reset to the system default at execve(). (See
		@@ -247,7 +247,7 @@ prctl(PR_SVE_GET_VL)

		The following flag may be OR-ed into the result:

		PR_SVE_SET_VL_INHERIT
		PR_SVE_VL_INHERIT

		Vector length will be inherited across execve().

		@@ -393,7 +393,7 @@ The regset data starts with struct user_sve_header, containing:
		* At every execve() call, the new vector length of the new process is set to
		the system default vector length, unless

		* PR_SVE_SET_VL_INHERIT (or equivalently SVE_PT_VL_INHERIT) is set for the
		* PR_SVE_VL_INHERIT (or equivalently SVE_PT_VL_INHERIT) is set for the
		calling thread, or

		* a deferred vector length change is pending, established via the

+14 −0

Original line number	Diff line number	Diff line
		@@ -86,6 +86,20 @@ then the next program in the chain (A) will see those changes,
		not the original input ``setsockopt`` arguments. The potentially
		modified values will be then passed down to the kernel.

		Large optval
		============
		When the ``optval`` is greater than the ``PAGE_SIZE``, the BPF program
		can access only the first ``PAGE_SIZE`` of that data. So it has to options:

		* Set ``optlen`` to zero, which indicates that the kernel should
		use the original buffer from the userspace. Any modifications
		done by the BPF program to the ``optval`` are ignored.
		* Set ``optlen`` to the value less than ``PAGE_SIZE``, which
		indicates that the kernel should use BPF's trimmed ``optval``.

		When the BPF program returns with the ``optlen`` greater than
		``PAGE_SIZE``, the userspace will receive ``EFAULT`` errno.

		Example
		=======

+17 −9

Original line number	Diff line number	Diff line
		@@ -34,12 +34,15 @@ properties:
		maxItems: 1

		clocks:
		maxItems: 1
		minItems: 1
		maxItems: 2
		items:
		- description: controller register bus clock
		- description: baud rate generator and delay control clock

		clock-names:
		description: input clock for the baud rate generator
		items:
		- const: core
		minItems: 1
		maxItems: 2

		if:
		properties:
		@@ -51,17 +54,22 @@ if:
		then:
		properties:
		clocks:
		contains:
		items:
		- description: controller register bus clock
		- description: baud rate generator and delay control clock
		minItems: 2

		clock-names:
		minItems: 2
		items:
		- const: core
		- const: pclk

		else:
		properties:
		clocks:
		maxItems: 1

		clock-names:
		items:
		- const: core

		required:
		- compatible
		- reg