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2021-07-19ALSA: opl3sa2: Allocate resources with device-managed APIsTakashi Iwai1-49/+11
This patch converts the resource management in ISA opl3sa2 driver with devres as a clean up. Each manual resource management is converted with the corresponding devres helper. The remove callback became superfluous and dropped. This should give no user-visible functional changes. Link: https://lore.kernel.org/r/20210715075941.23332-69-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-06-09ALSA: opl3sa2: Fix assignment in if conditionTakashi Iwai1-24/+44
ISA OPL3SA2 driver code contains lots of assignments in if condition, which is a bad coding style that may confuse readers and occasionally lead to bugs. This patch is merely for coding-style fixes, no functional changes. Link: https://lore.kernel.org/r/20210608140540.17885-10-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-17module: remove never implemented MODULE_SUPPORTED_DEVICELeon Romanovsky1-5/+0
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-01-26isa: Make the remove callback for isa drivers return voidUwe Kleine-König1-2/+1
The driver core ignores the return value of the remove callback, so don't give isa drivers the chance to provide a value. Adapt all isa_drivers with a remove callbacks accordingly; they all return 0 unconditionally anyhow. Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for drivers/net/can/sja1000/tscan1.c Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Acked-by: Wolfram Sang <wsa@kernel.org> # for drivers/i2c/ Reviewed-by: Takashi Iway <tiwai@suse.de> # for sound/ Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for drivers/media/ Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Link: https://lore.kernel.org/r/20210122092449.426097-4-uwe@kleine-koenig.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03ALSA: isa: Constify snd_kcontrol_new itemsTakashi Iwai1-2/+2
Most of snd_kcontrol_new definitions are read-only and passed as-is. Let's declare them as const for further optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-36-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-12-11ALSA: opl3sa2: Support PCM sync_stopTakashi Iwai1-0/+1
The driver invokes snd_pcm_period_elapsed() simply from the interrupt handler. Set card->sync_irq for enabling the missing sync_stop PCM operation. Link: https://lore.kernel.org/r/20191210063454.31603-45-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner1-16/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-17ALSA: opl3sa2: constify pnp_device_id and pnp_card_device_idArvind Yadav1-2/+2
*_device_id are not supposed to change at runtime. All functions working with *_device_id provided by <linux/pnp.h> work with const *_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-20Annotate hardware config module parameters in sound/isa/David Howells1-8/+8
When the kernel is running in secure boot mode, we lock down the kernel to prevent userspace from modifying the running kernel image. Whilst this includes prohibiting access to things like /dev/mem, it must also prevent access by means of configuring driver modules in such a way as to cause a device to access or modify the kernel image. To this end, annotate module_param* statements that refer to hardware configuration and indicate for future reference what type of parameter they specify. The parameter parser in the core sees this information and can skip such parameters with an error message if the kernel is locked down. The module initialisation then runs as normal, but just sees whatever the default values for those parameters is. Note that we do still need to do the module initialisation because some drivers have viable defaults set in case parameters aren't specified and some drivers support automatic configuration (e.g. PNP or PCI) in addition to manually coded parameters. This patch annotates drivers in sound/isa/. Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk> Signed-off-by: David Howells <dhowells@redhat.com> cc: Jaroslav Kysela <perex@perex.cz> cc: Takashi Iwai <tiwai@suse.com> cc: alsa-devel@alsa-project.org
2015-01-28ALSA: Include linux/io.h instead of asm/io.hTakashi Iwai1-2/+1
Nowadays it's recommended. Replace all in a shot. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-02ALSA: wss: Remove (almost) always NULL parametersLars-Peter Clausen1-2/+2
Most callers of snd_wss_pcm(), snd_wss_timer() and snd_cs4236_pcm() pass NULL as the last parameter, some callers pass a pointer but never use it after the function has been called and only a few callers pass a pointer and actually use it. The later is only the case for snd_wss_pcm() for snd_cs4236_pcm() and it is possible to get the same PCM object by accessing the pcm field of the snd_wss struct that was passed as the first parameter. This function removes the last parameters from the functions mentioned above and updates the callers which used it to use chip->pcm instead. This allows us to slightly simplify the functions since they don't have to check and set the last parameter anymore which makes the code slightly shorter and cleaner. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-12ALSA: isa: Convert to snd_card_new() with a device pointerTakashi Iwai1-9/+7
Also remove superfluous snd_card_set_dev() calls. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-05-29ALSA: ISA: Remove superfluous *_set_drvdata(NULL) callsTakashi Iwai1-2/+0
Similarly like the previous commit for PCI drivers, remove dev_set_drvdata(NULL) and pnp_set_drvdata(NULL) calls in ISA drivers now. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-12-07ALSA: isa: remove __dev* attributesBill Pemberton1-20/+20
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-19ALSA: module_param: make bool parameters really boolRusty Russell1-2/+2
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-31sound: fix drivers needing module.h not moduleparam.hPaul Gortmaker1-1/+1
The implicit presence of module.h lured several users into incorrectly thinking that they only needed/used modparam.h but once we clean up the module.h presence, these will show up as build failures, so fix 'em now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-22sound: irq: Remove IRQF_DISABLEDYong Zhang1-1/+1
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-09-14ALSA: mpu401: clean up interrupt specificationClemens Ladisch1-2/+3
The semantics of snd_mpu401_uart_new()'s interrupt parameters are somewhat counterintuitive: To prevent the function from allocating its own interrupt, either the irq number must be invalid, or the irq_flags parameter must be zero. At the same time, the irq parameter being invalid specifies that the mpu401 code has to work without an interrupt allocated by the caller. This implies that, if there is an interrupt and it is allocated by the caller, the irq parameter must be set to a valid-looking number which then isn't actually used. With the removal of IRQF_DISABLED, zero becomes a valid irq_flags value, which forces us to handle the parameters differently. This patch introduces a new flag MPU401_INFO_IRQ_HOOK for when the device interrupt is handled by the caller, and makes the allocation of the interrupt to depend only on the irq parameter. As suggested by Takashi, the irq_flags parameter was dropped because, when used, it had the constant value IRQF_DISABLED. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-11-01tree-wide: fix comment/printk typosUwe Kleine-König1-1/+1
"gadget", "through", "command", "maintain", "maintain", "controller", "address", "between", "initiali[zs]e", "instead", "function", "select", "already", "equal", "access", "management", "hierarchy", "registration", "interest", "relative", "memory", "offset", "already", Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-03-30include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.hTejun Heo1-1/+0
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>
2009-04-06ALSA: opl3sa2: add ZV port controlKrzysztof Helt1-0/+1
Add ZV port control switch. This patch is done after solution given in the ALSA bug #2872 report. The patch resolves the issue. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-24Merge branch 'topic/isa-misc' into for-linusTakashi Iwai1-2/+2
2009-03-24Merge branch 'topic/cs423x-merge' into for-linusTakashi Iwai1-3/+7
2009-03-24Merge branch 'topic/snd_card_new-err' into for-linusTakashi Iwai1-14/+17
2009-03-17Merge branch 'fix/opl3sa2-suspend' into topic/isa-miscTakashi Iwai1-6/+12
2009-03-17ALSA: opl3sa2 - Fix NULL dereference when suspending snd_opl3sa2Krzysztof Helt1-6/+12
Fix the OOPS during a opl3sa2 card suspend and resume if the driver is loaded but the card is not found. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-02ALSA: opl3sa2 fix irq releasing and short name of cardKrzysztof Helt1-2/+2
Two simple fixes: 1. Use the same pointer for the free_irq() and the request_irq() calls. 2. A short name of card is appended with '2' or '3' character depending on a detected chip. Remove the '2' character from the short name. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-02-16Merge branch 'topic/snd_card_new-err' into topic/cs423x-mergeTakashi Iwai1-14/+17
2009-02-05ALSA: isa/*: Add missing KERN_* prefix to printkTakashi Iwai1-3/+7
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-01-12ALSA: Convert to snd_card_create() in sound/isa/*Takashi Iwai1-14/+17
Convert from snd_card_new() to the new snd_card_create() function. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-08-25ALSA: opl3sa2: replace nd_opl3sa2_info_xxx() with snd_wss_info_xxx()Krzysztof Helt1-27/+5
Replace snd_opl3sa2_info_xxx() with snd_wss_info_xxx(). Drop check of card->private_data which cannot be NULL if card is not NULL (spotted by Rene Herman). Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Reviewed-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-08-25ALSA: opl3sa2: drop snd_card pointer from the snd_opl3sa2 structureKrzysztof Helt1-14/+19
Remove card pointer from the snd_opl3sa2 structure and break circular reference snd_card->snd_opl3sa2->snd_card. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-08-06ALSA: wss_lib: rename cs4321_foo to wss_fooKrzysztof Helt1-16/+18
Rename functions and structures from the former cs4321_lib to names more corresponding with the new name: wss_lib. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Reviewed-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-08-06ALSA: wss_lib: rename cs4231.h into wss.hKrzysztof Helt1-1/+1
Rename file include/sound/cs4231.h into include/sound/wss.h Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Reviewed-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] Remove sound/driver.hTakashi Iwai1-1/+0
This header file exists only for some hacks to adapt alsa-driver tree. It's useless for building in the kernel. Let's move a few lines in it to sound/core.h and remove it. With this patch, sound/driver.h isn't removed but has just a single compile warning to include it. This should be really killed in future. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] sound/isa: kill pnp_resource_changeRene Herman1-34/+2
This removes the pnp_resource_change use from the ALSA ISAPnP drivers. In 2.4 these were useful in providing an easy path to setting the resources, but in 2.6 they retain function as a layering violation only. This makes for a nice cleanup (-550 lines) of ALSA but moreover, ALSA is the only remaining user of pnp_init_resource_table(), pnp_resource_change() and pnp_manual_config_dev() (and, in fact, of 'struct pnp_resource_table') in the tree outide of drivers/pnp itself meaning it makes for more cleanup potential inside the PnP layer. Thomas Renninger acked their removal from that side, you did from the ALSA side (CC list just copied from that thread). Against current alsa-kernel HG. Many more potential cleanups in there, but this _only_ removes the pnp_resource_change code. Compile tested against current alsa-kernel HG and compile- and use-tested against 2.6.23.x (few offsets). Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16[ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.czJaroslav Kysela1-2/+2
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16[ALSA] Fix bugs in mode change/recalibration for opl3sa2 driverPaul Vojta1-0/+1
The mode change / recalibration doesn't work always with opl3sa2 devices, e.g. the first time it's played back. The patch fixes the problem. Signed-off-by: Paul Vojta <vojta@math.berkeley.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-07-20[ALSA] opl3sa2 - Add Neomagic MagicWave 3D ISA PnP IDPaul Vojta1-0/+2
Add Neomagic MagicWave 3D to list of supported devices for opl3sa2 driver. Signed-off-by: Paul Vojta <vojta@math.berkeley.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-06-28ALSA: use __devexit_pRandy Dunlap1-1/+1
Change __devexit to __devexit_p: sound/isa/opl3sa2.c:956: error: expected expression before '__attribute__' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-16[ALSA] Fix probe of non-PnP ISA devicesRene Herman1-4/+11
isa_register_driver() returns an error if no device is found and it's no fatal error for the drivers with pnp support. Signed-off-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11[ALSA] isa_bus device/driver namingRene Herman1-2/+2
isa_bus: delete snd_ prefix from the (sysfs visible) device/driver names. Signed-off-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11[ALSA] Port the rest of ALSA ISA drivers to isa_driverTakashi Iwai1-75/+48
Port the rest of ALSA ISA drivers to use isa_driver framework instead of platform_driver. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-14[ALSA] Fix __devinit and __devexit issues with sound driversPrarit Bhargava1-2/+2
Fix __devinit and __devexit issues with sound drivers. Resolves MODPOST warnings similar to: WARNING: sound/drivers/snd-dummy.o - Section mismatch: reference to .init.text:snd_dummy_probe from .data.rel.local between 'snd_dummy_driver' (at offset 0x0) and 'snd_dummy_controls' WARNING: sound/drivers/snd-mtpav.o - Section mismatch: reference to .init.text:snd_mtpav_probe from .data.rel.local between 'snd_mtpav_driver' (at offset 0x0) and 'snd_mtpav_input' WARNING: sound/drivers/snd-virmidi.o - Section mismatch: reference to .init.text:snd_virmidi_probe from .data.rel.local after 'snd_virmidi_driver' (at offset 0x0) Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09[ALSA] Add even more 'const' to everything related to TLVTakashi Iwai1-2/+2
Mark TLV data as 'const' Signed-of-by: Philipp Matthias Hahn <pmhahn@pmhahn.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells1-3/+3
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)
2006-09-23[ALSA] Add dB scale information to opl3sa2 driverTakashi Iwai1-2/+24
Added the dB scale information to opl3sa2 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-07-02[PATCH] irq-flags: sound: Use the new IRQF_ constantsThomas Gleixner1-1/+1
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: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-22[ALSA] Fix invalid __init in ALSA ISA driversTakashi Iwai1-5/+5
Replaced invalid __init with __devinit in snd-sbawe and snd-opl3sa2 drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] Remove zero-initialization of static variablesTakashi Iwai1-1/+1
Removed zero-initializations of static variables. A tiny optimization. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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