Commit Graph

119 Commits

Author SHA1 Message Date
Dominik Brodowski
5fa9167a1b pcmcia: rework the irq_req_t typedef
Most of the irq_req_t typedef'd struct can be re-worked quite
easily:

(1) IRQInfo2 was unused in any case, so drop it.

(2) IRQInfo1 was used write-only, so drop it.

(3) Instance (private data to be passed to the IRQ handler):
	Most PCMCIA drivers using pcmcia_request_irq() to actually
	register an IRQ handler set the "dev_id" to the same pointer
	as the "priv" pointer in struct pcmcia_device. Modify the two
	exceptions (ipwireless, ibmtr_cs) to also work this waym and
	set the IRQ handler's "dev_id" to p_dev->priv unconditionally.

(4) Handler is to be of type irq_handler_t.

(5) Handler != NULL already tells whether an IRQ handler is present.
	Therefore, we do not need the IRQ_HANDLER_PRESENT flag in
	irq_req_t.Attributes.

CC: netdev@vger.kernel.org
CC: linux-bluetooth@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: Jaroslav Kysela <perex@perex.cz>
CC: Jiri Kosina <jkosina@suse.cz>
CC: Karsten Keil <isdn@linux-pingi.de>
for the Bluetooth parts: Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:03:14 +01:00
Dominik Brodowski
6838b03fc6 pcmcia: pcmcia_request_window() doesn't need a pointer to a pointer
pcmcia_request_window() only needs a pointer to struct pcmcia_device, not
a pointer to a pointer.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
Acked-by: Karsten Keil <keil@b1-systems.de> (for ISDN)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:58 +01:00
Magnus Damm
868575d1e8 pcmcia: Pass struct pcmcia_device to pcmcia_map_mem_page()
No logic changes, just pass struct pcmcia_device to pcmcia_map_mem_page()

[linux@dominikbrodowski.net: update to 2.6.31]
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
Acked-by: Karsten Keil <keil@b1-systems.de> (for ISDN)
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-28 18:02:13 +01:00
Dominik Brodowski
3e7166178a pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (scsi)
Convert PCMCIA drivers to use the dynamic debug infrastructure, instead of
requiring manual settings of PCMCIA_DEBUG.

Also, remove all usages of the CS_CHECK macro and replace them with proper
Linux style calling and return value checking. The extra error reporting may
be dropped, as the PCMCIA core already complains about any (non-driver-author)
errors.

CC: linux-scsi@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-11-09 08:30:03 +01:00
Jiri Slaby
edced191e4 [SCSI] nsp_cs: fix buf overflow
In nsp_cs_config there is a wrong struct nsp_cs_configdata allocation.
It allocates only sizeof(pointer to nsp_cs_configdata) for a whole
structure. Add a dereference to the sizeof to allocate
sizeof(nsp_cs_configdata).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:52:22 -05:00
Roel Kluin
0454c7408a [SCSI] nsp_cs: time_out reaches -1
With a postfix decrement timeouts will reach -1 rather than 0, so the
errors do not appear.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-15 10:09:31 -05:00
Larry Finger
58607b30fc [SCSI] aha152x_cs: Fix regression that keeps driver from using shared interrupts
At some point since 2.6.22, the aha152x_cs driver stopped working and
started erring on load with the following messages:

kernel: pcmcia: request for exclusive IRQ could not be fulfilled.
kernel: pcmcia: the driver needs updating to supported shared IRQ lines.

With the following change, the driver works with shared IRQs.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@kernel.org>		[2.6.28], [2.6.27], [2.6.26]
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-01-05 12:17:42 -06:00
Linus Torvalds
2be4ff2f08 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (49 commits)
  pcmcia: ioctl-internal definitions
  pcmcia: cistpl header cleanup
  pcmcia: remove unused argument to pcmcia_parse_tuple()
  pcmcia: card services header cleanup
  pcmcia: device_id header cleanup
  pcmcia: encapsulate ioaddr_t
  pcmcia: cleanup device driver header file
  pcmcia: cleanup socket services header file
  pcmcia: merge ds_internal.h into cs_internal.h
  pcmcia: cleanup cs_internal.h
  pcmcia: cs_internal.h is internal
  pcmcia: use dev_printk for cs_error()
  pcmcia: remove CS_ error codes alltogether
  pcmcia: deprecate CS_BAD_TUPLE
  pcmcia: deprecate CS_BAD_ARGS
  pcmcia: deprecate CS_BAD_BASE, CS_BAD_IRQ, CS_BAD_OFFSET and CS_BAD_SIZE
  pcmcia: deprecate CS_BAD_ATTRIBUTE, CS_BAD_TYPE and CS_BAD_PAGE
  pcmcia: deprecate CS_NO_MORE_ITEMS
  pcmcia: deprecate CS_IN_USE
  pcmcia: deprecate CS_CONFIGURATION_LOCKED
  ...

Fix trivial conflict in drivers/pcmcia/ds.c manually
2008-10-13 14:12:40 -07:00
Adrian Bunk
7a8fc9b248 removed unused #include <linux/version.h>'s
This patch lets the files using linux/version.h match the files that
#include it.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-23 12:14:12 -07:00
Dominik Brodowski
ad913c1192 pcmcia: pcmcia_config_loop() improvement by passing vcc
By passing the current Vcc setting to the pcmcia_config_loop callback
function, we can remove pcmcia_get_configuration_info() calls from many
drivers.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23 01:22:52 +02:00
Dominik Brodowski
8e2fc39dde pcmcia: pcmcia_config_loop() default CIS entry handling
Many drivers use the default CIS entry within their pcmcia_config_loop()
callback function. Therefore, factor the default CIS entry handling out.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23 01:22:00 +02:00
Dominik Brodowski
498ac1899b pcmcia: pcmcia_config_loop() ConfigIndex unification
Almost all drivers set p_dev->conf.ConfigIndex to cfg->index in
the pcmcia_config_loop() callback function. Therefore, factor it out.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23 01:21:29 +02:00
Dominik Brodowski
0e6f9d2708 pcmcia: use pcmcia_loop_config in scsi pcmcia drivers
Use the config loop helper in scsi pcmcia drivers.

CC: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
CC: linux-scsi@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23 01:21:23 +02:00
Harvey Harrison
cadbd4a5e3 [SCSI] replace __FUNCTION__ with __func__
[jejb: fixed up a ton of missed conversions.

 All of you are on notice this has happened, driver trees will now
 need to be rebased]

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: SCSI List <linux-scsi@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-07-27 10:31:49 -04:00
Tony Jones
ee959b00c3 SCSI: convert struct class_device to struct device
It's big, but there doesn't seem to be a way to split it up smaller...

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-19 19:10:33 -07:00
Olof Johansson
ecb8a8472f pcmcia: convert some internal-only ioaddr_t to unsigned int
Convert the io_req_t members to unsigned int, to allow use on machines with
more than 16 bits worth of IO ports (i.e.  secondary busses on ppc64, etc).

There was only a couple of places in drivers where a change was needed.  I
left printk formats alone (there are lots of %04x-style formats in there),
mostly to not change the format on the platforms that only have 16-bit io
addresses, but also because the padding doesn't really add all that much value
most of the time.

I found only one sprintf of an address, and upsized the string accordingly (I
doubt anyone will have anywhere near INT_MAX as irq value, but at least
there's room for it now).

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:08 -08:00
James Bottomley
d3f46f39b7 [SCSI] remove use_sg_chaining
With the sg table code, every SCSI driver is now either chain capable
or broken (or has sg_tablesize set so chaining is never activated), so
there's no need to have a check in the host template.

Also tidy up the code by moving the scatterlist size defines into the
SCSI includes and permit the last entry of the scatterlist pools not
to be a power of two.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-30 13:14:02 -06:00
James Bottomley
b523381e32 [SCSI] fix pcmcia compile problem
This patch

commit 8ae732a91d
Author: Tejun Heo <htejun@gmail.com>
Date:   Fri Dec 7 22:36:23 2007 +0900

    [SCSI] make pcmcia directory use obj-y|m instead of subdir-y|m

Moved the scsi Makefile into conformance, but also caused the pcmcia
subdirectory to get built in for the first time, leading to duplicate
symbols in an allyesconfig build.  Since evidently no-one relies on
these being built in, fix this by ensuring they can only be built as
modules.

Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-23 11:29:34 -06:00
Boaz Harrosh
040cd23242 [SCSI] nsp_cs: convert to data accessors and !use_sg cleanup
- use scsi data accessors
  - cleanup !use_sg code paths
  - TODO: use next_sg() for Jens's sglist branch. Look for 2
    places with "SCp.buffer++"

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-11 18:22:34 -06:00
Jens Axboe
45711f1af6 [SG] Update drivers to use sg helpers
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 21:19:53 +02:00
Jiri Slaby
93043ece03 define global BIT macro
define global BIT macro

move all local BIT defines to the new globally define macro.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00
FUJITA Tomonori
9cb83c7529 [SCSI] add use_sg_chaining option to scsi_host_template
This option is true if a low-level driver can support sg
chaining. This will be removed eventually when all the drivers are
converted to support sg chaining. q->max_phys_segments is set to
SCSI_MAX_SG_SEGMENTS if false.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 11:24:32 +02:00
Adrian Bunk
774251ef64 [SCSI] nsp_cs: remove kernel 2.4 code
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-10-12 14:54:24 -04:00
Linus Torvalds
e6f194d8f6 Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (60 commits)
  [SCSI] libsas: make ATA functions selectable by a config option
  [SCSI] bsg: unexport sg v3 helper functions
  [SCSI] bsg: fix bsg_unregister_queue
  [SCSI] bsg: make class backlinks
  [SCSI] 3w-9xxx: add support for 9690SA
  [SCSI] bsg: fix bsg_register_queue error path
  [SCSI] ESP: Increase ESP_BUS_TIMEOUT to 275.
  [SCSI] libsas: fix scr_read/write users and update the libata documentation
  [SCSI] mpt fusion: update Kconfig help
  [SCSI] scsi_transport_sas: add destructor for bsg
  [SCSI] iscsi_tcp: buggered kmalloc()
  [SCSI] qla2xxx: Update version number to 8.02.00-k2.
  [SCSI] qla2xxx: Add ISP25XX support.
  [SCSI] qla2xxx: Use pci_try_set_mwi().
  [SCSI] qla2xxx: Use PCI-X/PCI-Express read control interfaces.
  [SCSI] qla2xxx: Re-factor isp_operations to static structures.
  [SCSI] qla2xxx: Validate mid-layer 'underflow' during check-condition handling.
  [SCSI] qla2xxx: Correct setting of 'current' and 'supported' speeds during FDMI registration.
  [SCSI] qla2xxx: Generalize iIDMA support.
  [SCSI] qla2xxx: Generalize FW-Interface-2 support.
  ...
2007-07-22 11:36:49 -07:00
Yoann Padioleau
dd00cc486a some kmalloc/memset ->kzalloc (tree wide)
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

Here is a short excerpt of the semantic patch performing
this transformation:

@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@

 x =
- kmalloc
+ kzalloc
  (E1,E2)
  ...  when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);

@@
expression E1,E2,E3;
@@

- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)

[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:50 -07:00
Jan Engelhardt
fc6e740d0b [SCSI] Use menuconfig objects
Make a "menuconfig" out of the Kconfig objects "menu, ..., endmenu",
so that the user can disable all the options in that menu at once
instead of having to disable each option separately.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-18 11:16:54 -05:00
FUJITA Tomonori
9482ef855e [SCSI] sym53c500_cs: convert to use the data buffer accessors
- remove the unnecessary map_single path.

- convert to use the new accessors for the sg lists and the
parameters.

Jens Axboe <jens.axboe@oracle.com> did the for_each_sg cleanup.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-05-26 19:09:22 -05:00
Robert P. J. Day
023ae61999 [SCSI] pcmcia: allow drivers to be built non-modular
Remove the Kconfig requirement that the PCMCIA SCSI drivers be built
only as modules, and allow them to be built into the kernel.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-04-01 10:07:14 -05:00
Tim Schmielau
cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00
Michal Piotrowski
af0db3a8ab [SCSI] nsp_cs: remove old scsi code
Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-02-07 18:30:57 -05:00
Al Viro
9a696b4f3c [PATCH] sym53c500_cs: remove bogus call fo free_dma()
What DMA for 16bit pcmcia card, anyway?  We never do request_dma()
there and ->dma_channel never changes since initialization to -1.
IOW, that call is dead code.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 08:39:20 -08:00
Daniel Ritz
e176d397ad [PATCH] PCMCIA: fix drivers broken by recent cleanup
Setting .ConfigBase and .Present is now done at the pcmcia core.

The driver cleanup missed a few places where the driver did set .Present
to PRESENT_OPTION and later to the values from the CIS.  Setting to
PRESENT_OPTION now overrides the values from the CIS.  So just remove
those lines.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:24:39 -08:00
Dominik Brodowski
af2b3b503a [PATCH] pcmcia: conf.ConfigBase and conf.Present consolidation
struct pcmcia_device *p_dev->conf.ConfigBase and .Present are set in almost
all PCMICA driver right at the beginning, using the same calls but slightly
different implementations. Unfiy this in the PCMCIA core.

Includes a small bugfix ("drivers/net/pcmcia/xirc2ps_cs.c: remove unused
label") from and Signed-off-by Adrian Bunk <bunk@stusta.de>

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-12-04 20:12:02 -05:00
Dominik Brodowski
efd50585e2 [PATCH] pcmcia: remove manf_id and card_id indirection
As we read out the manufactor and card_id from the PCMCIA device in the
PCMCIA core, and device drivers can access those reliably in struct
pcmcia_device's fields manf_id and card_id, remove additional (and partly
broken) manf_id and card_id detection logic from PCMCIA device drivers.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-12-04 20:09:20 -05:00
Henrik Kretzschmar
0fc82d5e84 [SCSI] convert ninja driver to struct scsi_cmnd
Changes the obsolete typedefd Scsi_Cmnd to struct scsi_cmnd in
the ninja scsi pcmcia driver.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-25 15:12:42 -07:00
David Howells
7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Henne
de77aaff5f [SCSI] scsi: remove hosts.h
Remove the obsolete hosts.h file under drivers/scsi.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-04 13:10:52 -05:00
James Bottomley
c4e00fac42 Merge ../scsi-misc-2.6
Conflicts:

	drivers/scsi/nsp32.c
	drivers/scsi/pcmcia/nsp_cs.c

Removal of randomness flag conflicts with SA_ -> IRQF_ global
replacement.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-07-03 09:41:12 -05:00
Thomas Gleixner
1d6f359a2e [PATCH] irq-flags: scsi: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:53 -07:00
Matt Mackall
99d19bb75b [SCSI] random: remove redundant SA_SAMPLE_RANDOM from NinjaSCSI
The scsi layer is already calling add_disk_randomness in scsi_end_request.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-06-26 16:33:45 -05:00
Dominik Brodowski
e2d4096365 [PATCH] pcmcia: use bitfield instead of p_state and state
Instead of the two status values struct pcmcia_device->p_state and state,
use descriptive bitfields. Most value-checking in drivers was invalid, as
the core now only calls the ->remove() (a.k.a. detach) function in case the
attachement _and_ configuration was successful.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:26:33 +02:00
Dominik Brodowski
15b99ac172 [PATCH] pcmcia: add return value to _config() functions
Most of the driver initialization isn't done in the .probe function, but in
the internal _config() functions. Make them return a value, so that .probe
can properly report whether the probing of the device succeeded or not.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:26:06 +02:00
Dominik Brodowski
fba395eee7 [PATCH] pcmcia: remove dev_link_t and client_handle_t indirection
dev_link_t * and client_handle_t both mean struct pcmcai_device * by now.
Therefore, remove all such indirections.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:21:06 +02:00
Dominik Brodowski
fd238232cd [PATCH] pcmcia: embed dev_link_t into struct pcmcia_device
Embed dev_link_t into struct pcmcia_device(), as they basically address the
same entity. The actual contents of dev_link_t will be cleaned up step by step.
This patch includes a bugfix from and signed-off-by Andrew Morton.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:57 +02:00
Dominik Brodowski
70294b4683 [PATCH] pcmcia: remove unneeded Vcc pseudo setting
As we do not allow setting Vcc in the pcmcia core, and Vpp1 and
Vpp2 can only be set to the same value, a lot of code can be
streamlined.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:55 +02:00
Dominik Brodowski
8661bb5b4a [PATCH] pcmcia: default suspend and resume handling
In all but one case, the suspend and resume functions of PCMCIA drivers
contain mostly of calls to pcmcia_release_configuration() and
pcmcia_request_configuration(). Therefore, move this code out of the
drivers and into the core.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:52 +02:00
Dominik Brodowski
50db3fdbbc [PATCH] pcmcia: convert remaining users of pcmcia_release_io and _irq
Convert the remaining drivers which use pcmcia_release_io or
pcmcia_release_irq, and remove the EXPORT of these symbols.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:51 +02:00
Dominik Brodowski
5f2a71fcb7 [PATCH] pcmcia: add pcmcia_disable_device
pcmcia_disable_device(struct pcmcia_device *p_dev) performs the necessary
cleanups upon device or driver removal: it calls the appropriate
pcmcia_release_* functions, and can replace (most) of the current drivers'
_release() functions.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-03-31 17:15:50 +02:00
Dominik Brodowski
cdaeedae98 [SCSI] scsi: aha152x pcmcia driver needs spi transport
AHA152X PCMCIA module needs spi_print_msg.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-03-05 08:00:47 -06:00
Jrgen E. Fischer
e2482fa16e [SCSI] aha152x: fix variable use before initialisation and other bugs
- change interface of the reset functions from Scsi_Cmnd to Scsi_Host.
- add functions with the original interface and rename the new
  functions to reflect the new interface.
- call these from the pcmcia driver, thereby avoiding the need to
  construct a (broken) Scsi_Cmnd from a Scsi_Host.
- just run the bh if the interrupt is from the controller and if so
  ensure that it's only called once per interrupt.

Signed-off-by: Juergen E. Fischer <fischer@linux-buechse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-28 11:20:45 -06:00
Dominik Brodowski
f8cfa618dc [PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback
Unify the EVENT_CARD_INSERTION and "attach" callbacks to one unified
probe() callback. As all in-kernel drivers are changed to this new
callback, there will be no temporary backwards-compatibility. Inside a
probe() function, each driver _must_ set struct pcmcia_device
*p_dev->instance and instance->handle correctly.

With these patches, the basic driver interface for 16-bit PCMCIA drivers
now has the classic four callbacks known also from other buses:

        int (*probe)            (struct pcmcia_device *dev);
        void (*remove)          (struct pcmcia_device *dev);

        int (*suspend)          (struct pcmcia_device *dev);
        int (*resume)           (struct pcmcia_device *dev);

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-06 00:03:24 +01:00
Dominik Brodowski
b463581154 [PATCH] pcmcia: remove dev_list from drivers
The linked list of devices managed by each PCMCIA driver is, in very most
cases, unused. Therefore, remove it from many drivers.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-06 00:03:20 +01:00
Dominik Brodowski
cc3b4866be [PATCH] pcmcia: unify detach, REMOVAL_EVENT handlers into one remove callback
Unify the "detach" and REMOVAL_EVENT handlers to one "remove" function.
Old functionality is preserved, for the moment.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-06 00:03:10 +01:00
Dominik Brodowski
98e4c28b7e [PATCH] pcmcia: new suspend core
Move the suspend and resume methods out of the event handler, and into
special functions. Also use these functions for pre- and post-reset, as
almost all drivers already do, and the remaining ones can easily be
converted.

Bugfix to include/pcmcia/ds.c
Signed-off-by: Andrew Morton <akpm@osdl.org>

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-05 23:59:02 +01:00
Christoph Hellwig
f64a181d89 [SCSI] remove Scsi_Device typedef
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-09 15:48:20 -05:00
Christoph Hellwig
d0be4a7d29 [SCSI] remove Scsi_Host_Template typedef
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-11-09 15:44:09 -05:00
Jeff Garzik
422c0d61d5 [SCSI] use scmd_id(), scmd_channel() throughout code
Wrap a highly common idiom.  Makes the code easier to read, helps pave
the way for sdev->{id,channel} removal, and adds a token that can easily
by grepped-for in the future.

There are a couple sdev_id() and scmd_printk() updates thrown in as well.

Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-10-28 21:10:16 -05:00
Dominik Brodowski
44670d2b50 [PATCH] pcmcia: remove references to pcmcia/version.h
As a follow-up, remove the inclusion of pcmcia/version.h in many files.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:07 -07:00
Pavel Roskin
2ffe6e280f [PATCH] pcmcia: remove client services version (fix)
One correction is needed.  Changes are not needed for
drivers/scsi/pcmcia/nsp_cs.c because it uses versioning in the
compatibility part, which is never used in 2.6 kernels.  The only right
thing we could to that compatibility code would be to remove it throughout
the file, but that would be a separate patch.

Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:06 -07:00
Pavel Roskin
a00db1ba7c [PATCH] pcmcia: remove client services version
The Linux PCMCIA code has some data that was apparently used (or meant to be
used) to ensure that only proper client drivers are loaded.  This is now
ensured (to a certain degree) by the fact that the most client drivers are
part of the kernel.  Also, the version information has not been updated
despite major changes in PCMCIA API.  This has made it meaningless.

This patch removes servinfo_t and pcmcia_get_card_services_info.  They are not
used in any userspace utilities such as pcmcia-cs and pcmciautils.
drivers/pcmcia/pcmcia_ioctl.c is adjusted accordingly.

CS_RELEASE and CS_RELEASE_CODE are removed.  include/pcmcia/version.h is empty
now.  It will be removed later, but for now it's left in the tree to avoid
touching all PCMCIA clients.

The only driver that needs to be changed is drivers/scsi/pcmcia/nsp_cs.c,
which uses CS_RELEASE_CODE.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:06 -07:00
Dominik Brodowski
1e212f3645 [PATCH] pcmcia: move event handler
Move the "event handler" to struct pcmcia_driver -- the unified event handler
will disappear really soon, but switching it to struct pcmcia_driver in the
meantime allows for better "step-by-step" patches.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:24:05 -07:00
Dominik Brodowski
aba1410005 [PATCH] pcmcia: id_table for nsp_cs.c
Add pcmcia_device_id table.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 18:03:16 -07:00
Dominik Brodowski
7a5a6eeb6d [PATCH] pcmcia: id_table for qlogic_stub.c
Add pcmcia_device_id table.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 18:03:11 -07:00
Dominik Brodowski
2a355d07f2 [PATCH] pcmcia: id_table for sym53c500_cs.c
Add pcmcia_device_id table.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 18:03:11 -07:00
Dominik Brodowski
2d1fb37621 [PATCH] pcmcia: id_table for fdomain_stub
Add pcmcia_device_id table.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 18:03:09 -07:00
Dominik Brodowski
2dc27daa58 [PATCH] pcmcia: id_table for aha152x
Add pcmcia_device_id table.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 18:03:09 -07:00
Jeff Garzik
df0ae2497d [SCSI] allow sleeping in ->eh_host_reset_handler()
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:05:18 -05:00
Jeff Garzik
3471c28803 [SCSI] Remove no-op implementations of SCSI EH hooks
Drivers need not implement a hook that returns FAILED, and does nothing
else, since the SCSI midlayer code will do that for us.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-17 12:04:45 -05:00
Linus Torvalds
1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00