Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/doc

Pull documentation updates from Jiri Kosina:
 "Updates to kernel documentation.

  I took this over (hopefully temporarily) from Randy who was not
  willing to maintain it any longer.  This pile mostly is a relay of
  queue that Randy already had in his tree"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/doc:
  Documentation: fix broken v4l-utils URL
  Documentation: update include path for mpssd
  Documentation: correct parameter error for dma_mapping_error
  MAINTAINERS: update location of linux-doc tree
  Documentation: remove networking/.gitignore
  tools: add more endian.h macros
  Make Documenation depend on headers_install
  Docs: this_cpu_ops: remove redundant add forms
  Documentation: disable vdso_test to avoid breakage with old glibc
  Documentation: update vDSO makefile to build portable examples
  Documentation: update .gitignore files
  Documentation: support glibc versions without htole macros
  v4l2-pci-skeleton: Only build if PCI is available
  Documentation: fix misc. warnings
  Documentation: make functions static to avoid prototype warnings
  Documentation: add makefiles for more targets
  Documentation: use subdir-y to avoid unnecessary built-in.o files
This commit is contained in:
Linus Torvalds 2014-10-07 21:14:57 -04:00
commit b6420ebd4a
50 changed files with 168 additions and 136 deletions

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@ -1,7 +0,0 @@
filesystems/dnotify_test
laptops/dslm
timers/hpet_example
vm/hugepage-mmap
vm/hugepage-shm
vm/map_hugetlb

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@ -531,7 +531,7 @@ To map a single region, you do:
size_t size = buffer->len;
dma_handle = dma_map_single(dev, addr, size, direction);
if (dma_mapping_error(dma_handle)) {
if (dma_mapping_error(dev, dma_handle)) {
/*
* reduce current DMA mapping usage,
* delay and try again later or
@ -588,7 +588,7 @@ Specifically:
size_t size = buffer->len;
dma_handle = dma_map_page(dev, page, offset, size, direction);
if (dma_mapping_error(dma_handle)) {
if (dma_mapping_error(dev, dma_handle)) {
/*
* reduce current DMA mapping usage,
* delay and try again later or
@ -689,7 +689,7 @@ to use the dma_sync_*() interfaces.
dma_addr_t mapping;
mapping = dma_map_single(cp->dev, buffer, len, DMA_FROM_DEVICE);
if (dma_mapping_error(dma_handle)) {
if (dma_mapping_error(cp->dev, dma_handle)) {
/*
* reduce current DMA mapping usage,
* delay and try again later or

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@ -110,7 +110,7 @@ makes no provisions to find these related devices. Some really
complex devices use the Media Controller (see <xref linkend="media_controller" />)
which can be used for this purpose. But most drivers do not use it,
and while some code exists that uses sysfs to discover related devices
(see libmedia_dev in the <ulink url="http://git.linuxtv.org/v4l-utils/">v4l-utils</ulink>
(see libmedia_dev in the <ulink url="http://git.linuxtv.org/cgit.cgi/v4l-utils.git/">v4l-utils</ulink>
git repository), there is no library yet that can provide a single API towards
both Media Controller-based devices and devices that do not use the Media Controller.
If you want to work on this please write to the linux-media mailing list: &v4l-ml;.</para>

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@ -1,3 +1,4 @@
obj-m := DocBook/ accounting/ auxdisplay/ connector/ \
filesystems/ filesystems/configfs/ ia64/ laptops/ networking/ \
pcmcia/ spi/ timers/ watchdog/src/ misc-devices/mei/
subdir-y := accounting arm auxdisplay blackfin connector \
filesystems filesystems ia64 laptops mic misc-devices \
networking pcmcia prctl ptp spi timers vDSO video4linux \
watchdog

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@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := getdelays

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@ -0,0 +1 @@
subdir-y := SH-Mobile

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@ -0,0 +1 @@
vrl4

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@ -1,8 +1,7 @@
BIN := vrl4
# List of programs to build
hostprogs-y := vrl4
.PHONY: all
all: $(BIN)
# Tell kbuild to always build the programs
always := $(hostprogs-y)
.PHONY: clean
clean:
rm -f *.o $(BIN)
HOSTCFLAGS_vrl4.o += -I$(objtree)/usr/include -I$(srctree)/tools/include

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@ -34,6 +34,7 @@
#include <stdint.h>
#include <stdio.h>
#include <errno.h>
#include <tools/endian.h>
struct hdr {
uint32_t magic1;
@ -77,7 +78,7 @@ struct hdr {
#define ROUND_UP(x) ((x + ALIGN - 1) & ~(ALIGN - 1))
ssize_t do_read(int fd, void *buf, size_t count)
static ssize_t do_read(int fd, void *buf, size_t count)
{
size_t offset = 0;
ssize_t l;
@ -98,7 +99,7 @@ ssize_t do_read(int fd, void *buf, size_t count)
return offset;
}
ssize_t do_write(int fd, const void *buf, size_t count)
static ssize_t do_write(int fd, const void *buf, size_t count)
{
size_t offset = 0;
ssize_t l;
@ -117,7 +118,7 @@ ssize_t do_write(int fd, const void *buf, size_t count)
return offset;
}
ssize_t write_zero(int fd, size_t len)
static ssize_t write_zero(int fd, size_t len)
{
size_t i = len;

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@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := cfag12864b-example

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@ -1,6 +1,3 @@
ifneq ($(CONFIG_BLACKFIN),)
obj-m := gptimers-example.o
all: modules
modules clean:
$(MAKE) -C ../.. SUBDIRS=$(PWD) $@
endif

1
Documentation/filesystems/.gitignore vendored Normal file
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@ -0,0 +1 @@
dnotify_test

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@ -1,5 +1,4 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
subdir-y := configfs
# List of programs to build
hostprogs-y := dnotify_test

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@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := aliasing-test

2
Documentation/laptops/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
dslm
freefall

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@ -1,8 +1,5 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := dslm
hostprogs-y := dslm freefall
# Tell kbuild to always build the programs
always := $(hostprogs-y)

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@ -0,0 +1 @@
subdir-y := mpssd

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@ -1,19 +1,19 @@
#
# Makefile - Intel MIC User Space Tools.
# Copyright(c) 2013, Intel Corporation.
#
# List of programs to build
hostprogs-y := mpssd
mpssd-objs := mpssd.o sysfs.o
# Tell kbuild to always build the programs
always := $(hostprogs-y)
HOSTCFLAGS += -I$(objtree)/usr/include -I$(srctree)/tools/include
ifdef DEBUG
CFLAGS += $(USERWARNFLAGS) -I. -g -Wall -DDEBUG=$(DEBUG)
else
CFLAGS += $(USERWARNFLAGS) -I. -g -Wall
HOSTCFLAGS += -DDEBUG=$(DEBUG)
endif
mpssd: mpssd.o sysfs.o
$(CC) $(CFLAGS) -o $@ $^ -lpthread
HOSTLOADLIBES_mpssd := -lpthread
install:
install mpssd /usr/sbin/mpssd
install micctrl /usr/sbin/micctrl
clean:
rm -f mpssd *.o

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@ -41,6 +41,7 @@
#include "mpssd.h"
#include <linux/mic_ioctl.h>
#include <linux/mic_common.h>
#include <tools/endian.h>
static void init_mic(struct mic_info *mic);
@ -1476,9 +1477,9 @@ set_cmdline(struct mic_info *mic)
len = snprintf(buffer, PATH_MAX,
"clocksource=tsc highres=off nohz=off ");
len += snprintf(buffer + len, PATH_MAX,
len += snprintf(buffer + len, PATH_MAX - len,
"cpufreq_on;corec6_off;pc3_off;pc6_off ");
len += snprintf(buffer + len, PATH_MAX,
len += snprintf(buffer + len, PATH_MAX - len,
"ifcfg=static;address,172.31.%d.1;netmask,255.255.255.0",
mic->id);

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@ -0,0 +1 @@
subdir-y := mei

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@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := mei-amt-version
HOSTCFLAGS_mei-amt-version.o += -I$(objtree)/usr/include

View file

View file

@ -1,7 +1 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# Tell kbuild to always build the programs
always := $(hostprogs-y)
obj-m := timestamping/
subdir-y := timestamping

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@ -1,2 +1,3 @@
timestamping
txtimestamp
hwtstamp_config

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@ -1,14 +1,8 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := timestamping hwtstamp_config
hostprogs-y := hwtstamp_config timestamping
# Tell kbuild to always build the programs
always := $(hostprogs-y)
HOSTCFLAGS_timestamping.o += -I$(objtree)/usr/include
HOSTCFLAGS_hwtstamp_config.o += -I$(objtree)/usr/include
clean:
rm -f timestamping hwtstamp_config

View file

@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := crc32hash

3
Documentation/prctl/.gitignore vendored Normal file
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@ -0,0 +1,3 @@
disable-tsc-ctxt-sw-stress-test
disable-tsc-on-off-stress-test
disable-tsc-test

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@ -0,0 +1,8 @@
# List of programs to build
hostprogs-y := disable-tsc-ctxt-sw-stress-test disable-tsc-on-off-stress-test disable-tsc-test
# Tell kbuild to always build the programs
always := $(hostprogs-y)
HOSTCFLAGS_disable-tsc-ctxt-sw-stress-test.o += -I$(objtree)/usr/include
HOSTCFLAGS_disable-tsc-on-off-stress-test.o += -I$(objtree)/usr/include
HOSTCFLAGS_disable-tsc-test.o += -I$(objtree)/usr/include

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@ -27,19 +27,20 @@
# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
#endif
uint64_t rdtsc() {
static uint64_t rdtsc(void)
{
uint32_t lo, hi;
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return (uint64_t)hi << 32 | lo;
}
void sigsegv_expect(int sig)
static void sigsegv_expect(int sig)
{
/* */
}
void segvtask(void)
static void segvtask(void)
{
if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0)
{
@ -54,13 +55,13 @@ void segvtask(void)
}
void sigsegv_fail(int sig)
static void sigsegv_fail(int sig)
{
fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n");
exit(0);
}
void rdtsctask(void)
static void rdtsctask(void)
{
if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0)
{

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@ -29,7 +29,8 @@
/* snippet from wikipedia :-) */
uint64_t rdtsc() {
static uint64_t rdtsc(void)
{
uint32_t lo, hi;
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
@ -38,7 +39,7 @@ return (uint64_t)hi << 32 | lo;
int should_segv = 0;
void sigsegv_cb(int sig)
static void sigsegv_cb(int sig)
{
if (!should_segv)
{
@ -55,7 +56,7 @@ void sigsegv_cb(int sig)
rdtsc();
}
void task(void)
static void task(void)
{
signal(SIGSEGV, sigsegv_cb);
alarm(10);

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@ -29,14 +29,15 @@ const char *tsc_names[] =
[PR_TSC_SIGSEGV] = "PR_TSC_SIGSEGV",
};
uint64_t rdtsc() {
static uint64_t rdtsc(void)
{
uint32_t lo, hi;
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return (uint64_t)hi << 32 | lo;
}
void sigsegv_cb(int sig)
static void sigsegv_cb(int sig)
{
int tsc_val = 0;

1
Documentation/ptp/.gitignore vendored Normal file
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@ -0,0 +1 @@
testptp

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@ -0,0 +1,8 @@
# List of programs to build
hostprogs-y := testptp
# Tell kbuild to always build the programs
always := $(hostprogs-y)
HOSTCFLAGS_testptp.o += -I$(objtree)/usr/include
HOSTLOADLIBES_testptp := -lrt

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@ -500,11 +500,11 @@ int main(int argc, char *argv[])
interval = t2 - t1;
offset = (t2 + t1) / 2 - tp;
printf("system time: %" PRId64 ".%u\n",
printf("system time: %lld.%u\n",
(pct+2*i)->sec, (pct+2*i)->nsec);
printf("phc time: %" PRId64 ".%u\n",
printf("phc time: %lld.%u\n",
(pct+2*i+1)->sec, (pct+2*i+1)->nsec);
printf("system time: %" PRId64 ".%u\n",
printf("system time: %lld.%u\n",
(pct+2*i+2)->sec, (pct+2*i+2)->nsec);
printf("system/phc clock time offset is %" PRId64 " ns\n"
"system clock time delay is %" PRId64 " ns\n",

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@ -1,33 +0,0 @@
# PTP 1588 clock support - User space test program
#
# Copyright (C) 2010 OMICRON electronics GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
CC = $(CROSS_COMPILE)gcc
INC = -I$(KBUILD_OUTPUT)/usr/include
CFLAGS = -Wall $(INC)
LDLIBS = -lrt
PROGS = testptp
all: $(PROGS)
testptp: testptp.o
clean:
rm -f testptp.o
distclean: clean
rm -f $(PROGS)

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@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := spidev_test spidev_fdx

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@ -41,7 +41,6 @@ The following this_cpu() operations with implied preemption protection
are defined. These operations can be used without worrying about
preemption and interrupts.
this_cpu_add()
this_cpu_read(pcp)
this_cpu_write(pcp, val)
this_cpu_add(pcp, val)
@ -225,7 +224,6 @@ still occur while an operation is in progress and if the interrupt too
modifies the variable, then RMW actions can not be guaranteed to be
safe.
__this_cpu_add()
__this_cpu_read(pcp)
__this_cpu_write(pcp, val)
__this_cpu_add(pcp, val)

1
Documentation/timers/.gitignore vendored Normal file
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@ -0,0 +1 @@
hpet_example

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@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-$(CONFIG_X86) := hpet_example

2
Documentation/vDSO/.gitignore vendored Normal file
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@ -0,0 +1,2 @@
vdso_test
vdso_standalone_test_x86

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@ -0,0 +1,12 @@
# vdso_test won't build for glibc < 2.16, so disable it
# hostprogs-y := vdso_test
hostprogs-$(CONFIG_X86) := vdso_standalone_test_x86
vdso_standalone_test_x86-objs := vdso_standalone_test_x86.o parse_vdso.o
vdso_test-objs := parse_vdso.o vdso_test.o
# Tell kbuild to always build the programs
always := $(hostprogs-y)
HOSTCFLAGS := -I$(objtree)/usr/include -std=gnu99
HOSTCFLAGS_vdso_standalone_test_x86.o := -fno-asynchronous-unwind-tables -fno-stack-protector
HOSTLOADLIBES_vdso_standalone_test_x86 := -nostdlib

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@ -1 +0,0 @@
v4lgrab

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@ -0,0 +1 @@
obj-$(CONFIG_VIDEO_PCI_SKELETON) := v4l2-pci-skeleton.o

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@ -0,0 +1 @@
subdir-y := src

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@ -1,6 +1,3 @@
# kbuild trick to avoid linker error. Can be omitted if a module is built.
obj- := dummy.o
# List of programs to build
hostprogs-y := watchdog-simple watchdog-test

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@ -3018,6 +3018,7 @@ F: Documentation/
X: Documentation/ABI/
X: Documentation/devicetree/
X: Documentation/[a-z][a-z]_[A-Z][A-Z]/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jikos/doc.git
DOUBLETALK DRIVER
M: "James R. Van Zandt" <jrv@vanzandt.mv.com>

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@ -1547,6 +1547,8 @@ endif
$(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
# Make sure the latest headers are built for Documentation
Documentation/: headers_install
%/: prepare scripts FORCE
$(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \

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@ -12,4 +12,4 @@ config RC_MAP
The ir-keytable program, available at v4l-utils package
provide the tool and the same RC maps for load from
userspace. Its available at
http://git.linuxtv.org/v4l-utils
http://git.linuxtv.org/cgit.cgi/v4l-utils.git/

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@ -25,6 +25,15 @@ config VIDEO_FIXED_MINOR_RANGES
When in doubt, say N.
config VIDEO_PCI_SKELETON
tristate "Skeleton PCI V4L2 driver"
depends on PCI && BUILD_DOCSRC
depends on VIDEO_V4L2 && VIDEOBUF2_CORE
depends on VIDEOBUF2_MEMOPS && VIDEOBUF2_DMA_CONTIG
---help---
Enable build of the skeleton PCI driver, used as a reference
when developing new drivers.
# Used by drivers that need tuner.ko
config VIDEO_TUNER
tristate

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@ -0,0 +1,56 @@
#ifndef _TOOLS_ENDIAN_H
#define _TOOLS_ENDIAN_H
#include <byteswap.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#ifndef htole16
#define htole16(x) (x)
#endif
#ifndef htole32
#define htole32(x) (x)
#endif
#ifndef htole64
#define htole64(x) (x)
#endif
#ifndef le16toh
#define le16toh(x) (x)
#endif
#ifndef le32toh
#define le32toh(x) (x)
#endif
#ifndef le64toh
#define le64toh(x) (x)
#endif
#else /* __BYTE_ORDER */
#ifndef htole16
#define htole16(x) __bswap_16(x)
#endif
#ifndef htole32
#define htole32(x) __bswap_32(x)
#endif
#ifndef htole64
#define htole64(x) __bswap_64(x)
#endif
#ifndef le16toh
#define le16toh(x) __bswap_16(x)
#endif
#ifndef le32toh
#define le32toh(x) __bswap_32(x)
#endif
#ifndef le64toh
#define le64toh(x) __bswap_64(x)
#endif
#endif
#endif /* _TOOLS_ENDIAN_H */