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* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h 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>
* Regulators: virtual - use sysfs attribute groupsDmitry Torokhov2010-03-031-31/+33
| | | | | | | | | | Instead of open-coding sysfs attribute group use canned solution. Also add __devinit/__devexit markups for probe and remove methods and use 'bool' where it makes sense. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: Improve virtual consumer probe error handlingMark Brown2009-09-221-4/+8
| | | | | | | | Report errors to the user and try harder to clean up if we're not able to probe. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: Make virtual consumer a bit more chattyMark Brown2009-09-221-0/+8
| | | | | | | This makes it easier to read the logs when doing testing. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: Make virtual consumer use dev_printkMark Brown2009-09-221-16/+18
| | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: Report regulator_get() failure in virtual consumerMark Brown2009-09-221-0/+2
| | | | | | | The core will no longer complain so we should log an error here. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: Set MODULE_ALIAS for regulator driversMark Brown2009-06-151-0/+1
| | | | | | | | Several of the regulator drivers didn't have MODULE_ALIAS so couldn't be auto loaded. Add the MODULE_ALIAS in case they do get built as modules. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator/virtual: fix strings compare predicatesMike Rapoport2009-04-281-4/+4
| | | | | | Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: Mark attributes table for virtual regulator staticMark Brown2009-03-311-1/+1
| | | | | | | It's not exported. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: minor cleanup of virtual consumerAndrew Morton2009-03-311-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Thu, 15 Jan 2009 16:10:22 -0800 Andrew Morton <akpm@linux-foundation.org> wrote: > On Wed, 14 Jan 2009 13:16:27 -0800 > David Brownell <david-b@pacbell.net> wrote: > > > From: David Brownell <dbrownell@users.sourceforge.net> > > > > Minor cleanup to the regulator set_mode sysfs support: > > switch to sysfs_streq() in set_mode(), which is also > > a code shrink. Use the same strings that get_mode() > > uses, shrinking data too. > > > > Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> > > --- > > drivers/regulator/virtual.c | 8 ++++---- > > 1 file changed, 4 insertions(+), 4 deletions(-) > > > > --- a/drivers/regulator/virtual.c > > +++ b/drivers/regulator/virtual.c > > @@ -226,13 +226,13 @@ static ssize_t set_mode(struct device *d > > unsigned int mode; > > int ret; > > > > - if (strncmp(buf, "fast", strlen("fast")) == 0) > > + if (sysfs_streq(buf, "fast\n") == 0) > > mode = REGULATOR_MODE_FAST; > > - else if (strncmp(buf, "normal", strlen("normal")) == 0) > > + else if (sysfs_streq(buf, "normal\n") == 0) > > mode = REGULATOR_MODE_NORMAL; > > - else if (strncmp(buf, "idle", strlen("idle")) == 0) > > + else if (sysfs_streq(buf, "idle\n") == 0) > > mode = REGULATOR_MODE_IDLE; > > - else if (strncmp(buf, "standby", strlen("standby")) == 0) > > + else if (sysfs_streq(buf, "standby\n") == 0) > > mode = REGULATOR_MODE_STANDBY; > > we don't need the \n's, do we? oh, it's for the string sharing. Sneaky. I wonder how many people will try to fix that up for us? Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: minor cleanup of virtual consumerDavid Brownell2009-03-311-4/+4
| | | | | | | | | | | Minor cleanup to the regulator set_mode sysfs support: switch to sysfs_streq() in set_mode(), which is also a code shrink. Use the same strings that get_mode() uses, shrinking data too. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* regulator: regulator test harnessMark Brown2008-07-301-0/+345
This provides a virtual regulator test harness which exposes a sysfs interface for setting power requirements, intended for test purposes only. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
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