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yaml
---
r: 55128
b: refs/heads/master
c: d4b2bab
h: refs/heads/master
v: v3
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Tejun Heo authored and Jeff Garzik committed May 1, 2007
1 parent 0943c55 commit e822776
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2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 9028780a3e6d2c3dd940e89b377765cca008b6df
refs/heads/master: d4b2bab4f26345ea1803feb23ea92fbe3f6b77bc
14 changes: 7 additions & 7 deletions trunk/CREDITS
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Expand Up @@ -661,7 +661,7 @@ N: Kees Cook
E: kees@outflux.net
W: http://outflux.net/
P: 1024D/17063E6D 9FA3 C49C 23C9 D1BC 2E30 1975 1FFF 4BA9 1706 3E6D
D: Minor updates to SCSI types, added /proc/pid/maps protection
D: Minor updates to SCSI code for the Communications type
S: (ask for current address)
S: USA

Expand Down Expand Up @@ -1745,9 +1745,8 @@ S: D-64295
S: Germany

N: Andi Kleen
E: andi@firstfloor.org
U: http://www.halobates.de
D: network, x86, NUMA, various hacks
E: ak@muc.de
D: network hacker, syncookies
S: Schwalbenstr. 96
S: 85551 Ottobrunn
S: Germany
Expand Down Expand Up @@ -2580,9 +2579,10 @@ S: Australia

N: Miguel Ojeda Sandonis
E: maxextreme@gmail.com
W: http://maxextreme.googlepages.com/
D: Author of the ks0108, cfag12864b and cfag12864bfb auxiliary display drivers.
D: Maintainer of the auxiliary display drivers tree (drivers/auxdisplay/*)
D: Author: Auxiliary LCD Controller driver (ks0108)
D: Author: Auxiliary LCD driver (cfag12864b)
D: Author: Auxiliary LCD framebuffer driver (cfag12864bfb)
D: Maintainer: Auxiliary display drivers tree (drivers/auxdisplay/*)
S: C/ Mieses 20, 9-B
S: Valladolid 47009
S: Spain
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17 changes: 1 addition & 16 deletions trunk/Documentation/CodingStyle
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Expand Up @@ -160,21 +160,6 @@ supply of new-lines on your screen is not a renewable resource (think
25-line terminal screens here), you have more empty lines to put
comments on.

Do not unnecessarily use braces where a single statement will do.

if (condition)
action();

This does not apply if one branch of a conditional statement is a single
statement. Use braces in both branches.

if (condition) {
do_this();
do_that();
} else {
otherwise();
}

3.1: Spaces

Linux kernel style for use of spaces depends (mostly) on
Expand Down Expand Up @@ -640,7 +625,7 @@ language.

There appears to be a common misperception that gcc has a magic "make me
faster" speedup option called "inline". While the use of inlines can be
appropriate (for example as a means of replacing macros, see Chapter 12), it
appropriate (for example as a means of replacing macros, see Chapter 11), it
very often is not. Abundant use of the inline keyword leads to a much bigger
kernel, which in turn slows the system as a whole down, due to a bigger
icache footprint for the CPU and simply because there is less memory
Expand Down
19 changes: 7 additions & 12 deletions trunk/Documentation/DocBook/Makefile
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Expand Up @@ -41,9 +41,8 @@ psdocs: $(PS)
PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
pdfdocs: $(PDF)

HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
HTML := $(patsubst %.xml, %.html, $(BOOKS))
htmldocs: $(HTML)
$(call build_main_index)

MAN := $(patsubst %.xml, %.9, $(BOOKS))
mandocs: $(MAN)
Expand Down Expand Up @@ -133,17 +132,10 @@ quiet_cmd_db2pdf = PDF $@
%.pdf : %.xml
$(call cmd,db2pdf)


main_idx = Documentation/DocBook/index.html
build_main_index = rm -rf $(main_idx) && \
echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \
echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
cat $(HTML) >> $(main_idx)

quiet_cmd_db2html = HTML $@
cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
$(patsubst %.html,%,$(notdir $@))</a><p>' > $@
Goto $(patsubst %.html,%,$(notdir $@))</a><p>' > $@

%.html: %.xml
@(which xmlto > /dev/null 2>&1) || \
Expand All @@ -160,7 +152,6 @@ quiet_cmd_db2man = MAN $@
@(which xmlto > /dev/null 2>&1) || \
(echo "*** You need to install xmlto ***"; \
exit 1)
$(Q)mkdir -p $(obj)/man
$(call cmd,db2man)
@touch $@

Expand Down Expand Up @@ -221,7 +212,11 @@ clean-files := $(DOCBOOKS) \
$(patsubst %.xml, %.9, $(DOCBOOKS)) \
$(C-procfs-example)

clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS))

#man put files in man subdir - traverse down
subdir- := man/


# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable se we can use it in if_changed and friends.
Expand Down
63 changes: 0 additions & 63 deletions trunk/Documentation/DocBook/kernel-api.tmpl
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Expand Up @@ -576,67 +576,4 @@ X!Idrivers/video/console/fonts.c
!Edrivers/input/ff-core.c
!Edrivers/input/ff-memless.c
</chapter>

<chapter id="spi">
<title>Serial Peripheral Interface (SPI)</title>
<para>
SPI is the "Serial Peripheral Interface", widely used with
embedded systems because it is a simple and efficient
interface: basically a multiplexed shift register.
Its three signal wires hold a clock (SCK, often in the range
of 1-20 MHz), a "Master Out, Slave In" (MOSI) data line, and
a "Master In, Slave Out" (MISO) data line.
SPI is a full duplex protocol; for each bit shifted out the
MOSI line (one per clock) another is shifted in on the MISO line.
Those bits are assembled into words of various sizes on the
way to and from system memory.
An additional chipselect line is usually active-low (nCS);
four signals are normally used for each peripheral, plus
sometimes an interrupt.
</para>
<para>
The SPI bus facilities listed here provide a generalized
interface to declare SPI busses and devices, manage them
according to the standard Linux driver model, and perform
input/output operations.
At this time, only "master" side interfaces are supported,
where Linux talks to SPI peripherals and does not implement
such a peripheral itself.
(Interfaces to support implementing SPI slaves would
necessarily look different.)
</para>
<para>
The programming interface is structured around two kinds of driver,
and two kinds of device.
A "Controller Driver" abstracts the controller hardware, which may
be as simple as a set of GPIO pins or as complex as a pair of FIFOs
connected to dual DMA engines on the other side of the SPI shift
register (maximizing throughput). Such drivers bridge between
whatever bus they sit on (often the platform bus) and SPI, and
expose the SPI side of their device as a
<structname>struct spi_master</structname>.
SPI devices are children of that master, represented as a
<structname>struct spi_device</structname> and manufactured from
<structname>struct spi_board_info</structname> descriptors which
are usually provided by board-specific initialization code.
A <structname>struct spi_driver</structname> is called a
"Protocol Driver", and is bound to a spi_device using normal
driver model calls.
</para>
<para>
The I/O model is a set of queued messages. Protocol drivers
submit one or more <structname>struct spi_message</structname>
objects, which are processed and completed asynchronously.
(There are synchronous wrappers, however.) Messages are
built from one or more <structname>struct spi_transfer</structname>
objects, each of which wraps a full duplex SPI transfer.
A variety of protocol tweaking options are needed, because
different chips adopt very different policies for how they
use the bits transferred with SPI.
</para>
!Iinclude/linux/spi/spi.h
!Fdrivers/spi/spi.c spi_register_board_info
!Edrivers/spi/spi.c
</chapter>

</book>
16 changes: 8 additions & 8 deletions trunk/Documentation/DocBook/librs.tmpl
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Expand Up @@ -79,12 +79,12 @@
<chapter id="usage">
<title>Usage</title>
<para>
This chapter provides examples of how to use the library.
This chapter provides examples how to use the library.
</para>
<sect1>
<title>Initializing</title>
<para>
The init function init_rs returns a pointer to an
The init function init_rs returns a pointer to a
rs decoder structure, which holds the necessary
information for encoding, decoding and error correction
with the given polynomial. It either uses an existing
Expand All @@ -98,10 +98,10 @@
static struct rs_control *rs_decoder;

/* Symbolsize is 10 (bits)
* Primitive polynomial is x^10+x^3+1
* Primitve polynomial is x^10+x^3+1
* first consecutive root is 0
* primitive element to generate roots = 1
* generator polynomial degree (number of roots) = 6
* primitve element to generate roots = 1
* generator polinomial degree (number of roots) = 6
*/
rs_decoder = init_rs (10, 0x409, 0, 1, 6);
</programlisting>
Expand All @@ -116,12 +116,12 @@ rs_decoder = init_rs (10, 0x409, 0, 1, 6);
</para>
<para>
The expanded data can be inverted on the fly by
providing a non-zero inversion mask. The expanded data is
providing a non zero inversion mask. The expanded data is
XOR'ed with the mask. This is used e.g. for FLASH
ECC, where the all 0xFF is inverted to an all 0x00.
The Reed-Solomon code for all 0x00 is all 0x00. The
code is inverted before storing to FLASH so it is 0xFF
too. This prevents that reading from an erased FLASH
too. This prevent's that reading from an erased FLASH
results in ECC errors.
</para>
<para>
Expand Down Expand Up @@ -273,7 +273,7 @@ free_rs(rs_decoder);
May be used under the terms of the GNU General Public License (GPL)
</programlisting>
<para>
The wrapper functions and interfaces are written by Thomas Gleixner.
The wrapper functions and interfaces are written by Thomas Gleixner
</para>
<para>
Many users have provided bugfixes, improvements and helping hands for testing.
Expand Down
3 changes: 3 additions & 0 deletions trunk/Documentation/DocBook/man/Makefile
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@@ -0,0 +1,3 @@
# Rules are put in Documentation/DocBook

clean-files := *.9.gz *.sgml manpage.links manpage.refs
15 changes: 0 additions & 15 deletions trunk/Documentation/SubmittingDrivers
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Expand Up @@ -87,21 +87,6 @@ Clarity: It helps if anyone can see how to fix the driver. It helps
driver that intentionally obfuscates how the hardware works
it will go in the bitbucket.

PM support: Since Linux is used on many portable and desktop systems, your
driver is likely to be used on such a system and therefore it
should support basic power management by implementing, if
necessary, the .suspend and .resume methods used during the
system-wide suspend and resume transitions. You should verify
that your driver correctly handles the suspend and resume, but
if you are unable to ensure that, please at least define the
.suspend method returning the -ENOSYS ("Function not
implemented") error. You should also try to make sure that your
driver uses as little power as possible when it's not doing
anything. For the driver testing instructions see
Documentation/power/drivers-testing.txt and for a relatively
complete overview of the power management issues related to
drivers see Documentation/power/devices.txt .

Control: In general if there is active maintainance of a driver by
the author then patches will be redirected to them unless
they are totally obvious and without need of checking.
Expand Down
20 changes: 6 additions & 14 deletions trunk/Documentation/accounting/getdelays.c
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Expand Up @@ -61,6 +61,8 @@ __u64 stime, utime;
#define MAX_MSG_SIZE 1024
/* Maximum number of cpus expected to be specified in a cpumask */
#define MAX_CPUS 32
/* Maximum length of pathname to log file */
#define MAX_FILENAME 256

struct msgtemplate {
struct nlmsghdr n;
Expand All @@ -70,16 +72,6 @@ struct msgtemplate {

char cpumask[100+6*MAX_CPUS];

static void usage(void)
{
fprintf(stderr, "getdelays [-dilv] [-w logfile] [-r bufsize] "
"[-m cpumask] [-t tgid] [-p pid]\n");
fprintf(stderr, " -d: print delayacct stats\n");
fprintf(stderr, " -i: print IO accounting (works only with -p)\n");
fprintf(stderr, " -l: listen forever\n");
fprintf(stderr, " -v: debug on\n");
}

/*
* Create a raw netlink socket and bind
*/
Expand Down Expand Up @@ -229,13 +221,13 @@ int main(int argc, char *argv[])
int count = 0;
int write_file = 0;
int maskset = 0;
char *logfile = NULL;
char logfile[128];
int loop = 0;

struct msgtemplate msg;

while (1) {
c = getopt(argc, argv, "diw:r:m:t:p:vl");
c = getopt(argc, argv, "diw:r:m:t:p:v:l");
if (c < 0)
break;

Expand All @@ -249,7 +241,7 @@ int main(int argc, char *argv[])
print_io_accounting = 1;
break;
case 'w':
logfile = strdup(optarg);
strncpy(logfile, optarg, MAX_FILENAME);
printf("write to file %s\n", logfile);
write_file = 1;
break;
Expand Down Expand Up @@ -285,7 +277,7 @@ int main(int argc, char *argv[])
loop = 1;
break;
default:
usage();
printf("Unknown option %d\n", c);
exit(-1);
}
}
Expand Down
11 changes: 0 additions & 11 deletions trunk/Documentation/blackfin/00-INDEX
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