percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Turns out that multiple people sent pretty much the same patch
for the same staging drivers. Commit these in two different
branches and merge them together to get a more complete coverage
of the cleanup and properly credit everyone for the work that they
did.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some code style issues about assignments in if conditions.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some code style issues like to add one space after a while or
switch statement and before a open parenthesis '(', and to include KERN_
facility level in the printk() functions.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some code style issues like else staments after the close
braces '}' and to use __func__ instead of __FUNCTION__.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some coding style issues like to use __func__ instead
__FUNCTION__, "foo *bar" instead "foo* bar" and a initial comment with
"/* */" instead "//"
Signed-off-by: Chihau Chau <chihau@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Removed parenthesis from return statements,
split up assignment and if condition
Signed-off-by: Jochen Maes <jochen.maes@sejo.be>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
String constants that are continued on subsequent lines with \
are not good.
Fixed a "is tryied" / tried typo
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
http://bugzilla.kernel.org/show_bug.cgi?id=14825
sizeof(extlen), always will be sizeof( unit32_t) or 4
It seems that something is wrong?!?!
Signed-off-by: Pavel Vasilyev <pavel@pavlinux.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
the code was looping, setting s_move[i] to the following calculations
if (actual_step>= 0)
s_move[i] = ((((i + 1) * gain + 0x200) - (i * gain + 0x200)) / 0x400);
else
s_move[i] = ((((i + 1) * gain - 0x200) - (i * gain - 0x200)) / 0x400);
but, this code reduces to the expression
s_move[i] = gain>> 10;
The reason for the complexity was to generate a step function with
integer division and rounding to land on specific values. But these calculations
can be simplified to the following code:
gain = ((actual_step<< 10) / 5)>> 10;
for (i = 0; i<= 4; i++)
s_move[i] = gain;
Signed-off-by: Justin Madru<jdm64@gawab.com>
Reviewed-by: Ray Lee<ray-lk@madrabbit.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
cppcheck found that ctrl_pmsm is leaked if the open operation fails.
Signed-off-by: Eric Sesterhenn <eric.sesterhenn@lsexperts.de>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add missing files/includes neccessary for Dream compilation. Mark
flash support as broken -- it is not present on released Dream, anyway.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This adds generic_gpio and pmem support, both are needed for other
dream drivers.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This adds TODO list. It is probably incomplete, as many parts were not
reviewed by the upstream maintainers, yet.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
wakelocks are power optimalization, not supported in mainline. Remove
them so that code compiles on mainline.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Includes changed so that <linux/sched.h> is now needed for
TASK_INTERRUPTIBLE and friends, so include it.
Remove hooks for features not in mainline, such as earlysuspend and
wakelocks.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Check that SMBUS APIs are available in touchscreen driver.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Trilok Soni <soni.trilok@gmail.com>
Cc: <arve@android.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It doesn't build, and hasn't for a long time (if ever). So mark
it BROKEN for now.
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Error handling code following a kmalloc or kzalloc should free the
allocated data.
The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
when != if (...) { <+...x...+> }
(
x->f1 = E
|
(x->f1 == NULL || ...)
|
f(...,x->f1,...)
)
...>
(
return \(0\|<+...x...+>\|ptr\);
|
return@p2 ...;
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
This was done using a semantic patch (http://coccinelle.lip6.fr/) that
checks that the declaration is not inside a function definition, that the
defined variable is not exported using EXPORTED_SYMBOL, etc, and that the
defined variable does not occur in any other file. If these conditions
hold, static is added before the declaration.
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Check that SMBUS APIs are available in touchscreen driver.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Support for input devices connected to GPIO pins. This adds support
for HTC Dream's keyboard and its trackball. Generic support already
exists for keyboard on GPIO, but this one is more advanced because it
can detect shadow key presses (and actually works with Dream :-).
(It also contains Kconfig/Makefile changes, including some that were
missing from previous commit. Sorry.)
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In vfe_send_msg_no_payload there is a wrong struct vfe_message allocation.
It allocates only sizeof(pointer to vfe_message) for a whole structure.
Add a dereference to the sizeof to allocate sizeof(vfe_message).
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This adds pointer to hardware documentation, and adds code comment
from Arve.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This separates coefficient computation into separate function, so that
main probe does not have 1001 variables, and is of a more reasonable
size.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is first part of touchscreen cleanups. I did not remove
earlysuspend functionality for now (to help Google merge the changes).
I mainly introduced helpers to reduce code duplication, and split huge
functions into smaller ones.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This adds support for synaptic touchscreen, used in HTC dream
cellphone.
This is original version from Arve, fixed only to compile; I do have
cleaner version, but I broken something inside, and this will preserve
authorship better. I originally tried to push the driver directly to
input/touchscreen, but the driver has some issues with interrupt
handling that are more difficult to fix than I expected at first.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Limit SMD communication glue to MSM platform. It is closely tied to
MSM architecture.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds driver for HTC Dream camera. I guess driver is
slightly higher quality than usual for staging/ , but it is fairly big
and I don't feel like doing all the cleanups myself. Also some parts
can probably be removed, as they did not end up in shipping hardware..
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Iliyan Malchev <ibm@android.com>
Cc: San Mehat <san@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
QDSP code is neccessarry for communication with some hardware
components on HTC Dream, including camera hardware. It also drives DSP
coproccessor.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Iliyan Malchev <ibm@android.com>
Cc: San Mehat <san@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
rpcrouter code is neccessarry for communication with QDSP and thus
many hardware components on HTC Dream, including camera hardware.
Cc: Brian Swetland <swetland@google.com>
Cc: Iliyan Malchev <ibm@android.com>
Cc: San Mehat <san@android.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Infrastructure to support the Qualcomm "shared memory driver"
interface, used to communicate with the baseband processor on MSM7k
SoCs. The smd core provides low level facilities to interact with the
shared memory comms region, and a "virtual serial channel" interface
that higher level transports (AT command channel, rmnet virtual
ethernet, qmi network management protocol, and oncrpc, for example)
are routed over.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Iliyan Malchev <ibm@android.com>
Cc: San Mehat <san@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tejun Heo