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2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo1-0/+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>
2009-09-11drivers/ata: use resource_sizeJulia Lawall1-1/+1
Use the function resource_size, which reduces the chance of introducing off-by-one errors in calculating the resource size. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ struct resource *res; @@ - (res->end - res->start) + 1 + resource_size(res) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24pata-rb532-cf: platform_get_irq() fix ignored failureFlorian Fainelli1-1/+1
platform_get_irq() can return -ENXIO, but since 'irq' is an unsigned int, it does not show when the IRQ resource wasn't found. Make irq an int so that we can use a single variable to test the platform_get_irq() return value. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24[libata] convert drivers to use ata.h mode mask definesErik Inge Bolsø1-1/+1
No functional changes in this patch. Signed-off-by: Erik Inge Bolsø <knan-lkml@anduin.net> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24pata-rb532-cf: drop custom freeze and thawPhil Sutter1-19/+1
I'm not quite sure what freezing and thawing is used for. Tests showed that the port is being frozen at initialisation state and thawed right afterwards, then the functions were not called anymore. Dropping the complete custom code for handling the frozen state seems to work at least for a standard use case including mounting a partition, copying some files in it (in parallel) and finally removing them and unmounting the partition. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24pata-rb532-cf: use ata_sff_data_xfer32()Phil Sutter1-20/+1
The biggest difference between rb532_pata_data_xfer() and ata_sff_data_xfer32() is the call to ata_sff_pause() at the end of rb532_pata_data_xfer() which I suppose to be unnecessary since it works without. I've also tested using ata_sff_data_xfer() as replacement, but since we know that the driver supports 32bit IO, using the optimised version should be safe. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24pata-rb532-cf: use ata_sff_exec_command()Phil Sutter1-8/+0
The only difference between rb532_pata_exec_command() and ata_sff_exec_command() is added debugging output, so it can be dropped and the standard op used instead. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-03-24pata-rb532-cf: replace rb532_pata_finish_io()Phil Sutter1-13/+2
Since the delay used internally is just the same as ata_sff_pause() uses, rb532_pata_finish_io() does exactly the same as ata_sff_pause() and thus can be replaced by the later one. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-01-27pata-rb532-cf: remove set_irq_type from finish_ioPhil Sutter1-2/+0
The driver has been tested without the call to set_irq_type at this point and occurs to work fine, so it should be safe to remove it. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-12-01[libata] pata_rb532_cf: fix signature of the xfer functionPhil Sutter1-1/+3
Per definition, this function should return the number of bytes consumed. As the original parameter "buflen" is being decremented inside the read/write loop, save it in "retlen" at the beginning. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Acked-by: Sergei Shtyltov <sshtylyov@ru.mvista.com> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-12-01[libata] pata_rb532_cf: fix and rename register definitionsPhil Sutter1-4/+7
The original standalone driver uses a custom address for the error register. Use it in pata_rb532_cf, too. Rename two register definitions: - The address offset 0x0800 in fact is the ATA base, not ATA command address. - The offset 0x0C00 is not a regular ATA data address, but a buffered one allowing 4-byte IO. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-06-04libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctlAlan Cox1-1/+3
- Make ata_sff_altstatus private so nobody uses it by mistake - Drop the 400nS delay from it Add ata_sff_irq_status - encapsulates the IRQ check logic This function keeps the existing behaviour for altstatus using devices. I actually suspect the logic was wrong before the changes but -rc isn't the time to play with that ata_sff_sync - ensure writes hit the device Really we want an io* operation for 'is posted' eg ioisposted(ioaddr) so that we can fix the nasty delay this causes on most systems. - ata_sff_pause - 400nS delay Ensure the command hit the device and delay 400nS - ata_sff_dma_pause Ensure the I/O hit the device and enforce an HDMA1:0 transition delay. Requires altstatus register exists, BUG if not so we don't risk corruption in MWDMA modes. (UDMA the checksum will save your backside in theory) The only other complication then is devices with their own handlers. rb532 can use dma_pause but scc needs to access its own altstatus register for internal errata workarounds so directly call the drivers own altstatus function. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-29[MIPS] ATA: Rename routerboard 500 to 532Ralf Baechle1-0/+277
The platform is actually named routerboard 532 so let's call it this. This patch only rename files, Kconfig and C symbols; no functional changes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>