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2018-04-25ALSA: control: Hardening for potential Spectre v1Takashi Iwai1-2/+5
As recently Smatch suggested, a few places in ALSA control core codes may expand the array directly from the user-space value with speculation: sound/core/control.c:1003 snd_ctl_elem_lock() warn: potential spectre issue 'kctl->vd' sound/core/control.c:1031 snd_ctl_elem_unlock() warn: potential spectre issue 'kctl->vd' sound/core/control.c:844 snd_ctl_elem_info() warn: potential spectre issue 'kctl->vd' sound/core/control.c:891 snd_ctl_elem_read() warn: potential spectre issue 'kctl->vd' sound/core/control.c:939 snd_ctl_elem_write() warn: potential spectre issue 'kctl->vd' Although all these seem doing only the first load without further reference, we may want to stay in a safer side, so hardening with array_index_nospec() would still make sense. In this patch, we put array_index_nospec() to the common snd_ctl_get_ioff*() helpers instead of each caller. These helpers are also referred from some drivers, too, and basically all usages are to calculate the array index from the user-space value, hence it's better to cover there. BugLink: https://marc.info/?l=linux-kernel&m=152411496503418&w=2 Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-04-05Merge tag 'sound-4.17-rc1' of ↵Linus Torvalds9-33/+43
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "This became a large update. The changes are scattered widely, and the majority of them are attributed to ASoC componentization. The gitk output made me dizzy, but it's slightly better than London tube. OK, below are some highlights: - Continued hardening works in ALSA PCM core; most of the existing syzkaller reports should have been covered. - USB-audio got the initial USB Audio Class 3 support, as well as UAC2 jack detection support and more DSD-device support. - ASoC componentization: finally each individual driver was converted to components framework, which is more future-proof for further works. Most of conversations were systematic. - Lots of fixes for Intel Baytrail / Cherrytrail devices with Realtek codecs, typically tablets and small PCs. - Fixes / cleanups for Samsung Odroid systems - Cleanups in Freescale SSI driver - New ASoC drivers: * AKM AK4458 and AK5558 codecs * A few AMD based machine drivers * Intel Kabylake machine drivers * Maxim MAX9759 codec * Motorola CPCAP codec * Socionext Uniphier SoCs * TI PCM1789 and TDA7419 codecs - Retirement of Blackfin drivers along with architecture removal" * tag 'sound-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (497 commits) ALSA: pcm: Fix UAF at PCM release via PCM timer access ALSA: usb-audio: silence a static checker warning ASoC: tscs42xx: Remove owner assignment from i2c_driver ASoC: mediatek: remove "simple-mfd" in the example ASoC: cpcap: replace codec to component ASoC: Intel: bytcr_rt5651: don't use codec anymore ASoC: amd: don't use codec anymore ALSA: usb-audio: fix memory leak on cval ALSA: pcm: Fix mutex unbalance in OSS emulation ioctls ASoC: topology: Fix kcontrol name string handling ALSA: aloop: Mark paused device as inactive ALSA: usb-audio: update clock valid control ALSA: usb-audio: UAC2 jack detection ALSA: pcm: Return -EBUSY for OSS ioctls changing busy streams ALSA: pcm: Avoid potential races between OSS ioctls and read/write ALSA: usb-audio: Integrate native DSD support for ITF-USB based DACs. ALSA: usb-audio: FIX native DSD support for TEAC UD-501 DAC ALSA: usb-audio: Add native DSD support for Luxman DA-06 ALSA: usb-audio: fix uac control query argument ASoC: nau8824: recover system clock when device changes ...
2018-04-02Merge tag 'asoc-v4.17' of ↵Takashi Iwai6-32/+37
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v4.17 This is a *very* big release for ASoC. Not much change in the core but there s the transition of all the individual drivers over to components which is intended to support further core work. The goal is to make it easier to do further core work by removing the need to special case all the different driver classes in the core, many of the devices end up being used in multiple roles in modern systems. We also have quite a lot of new drivers added this month of all kinds, quite a few for simple devices but also some more advanced ones with more substantial code. - The biggest thing is the huge series from Morimoto-san which converted everything over to components. This is a huge change by code volume but was fairly mechanical - Many fixes for some of the Realtek based Baytrail systems covering both the CODECs and the CPUs, contributed by Hans de Goode. - Lots of cleanups for Samsung based Odroid systems from Sylwester Nawrocki. - The Freescale SSI driver also got a lot of cleanups from Nicolin Chen. - The Blackfin drivers have been removed as part of the removal of the architecture. - New drivers for AKM AK4458 and AK5558, several AMD based machines, several Intel based machines, Maxim MAX9759, Motorola CPCAP, Socionext Uniphier SoCs, and TI PCM1789 and TDA7419
2018-03-28Backmerge tag 'v4.16-rc7' into drm-nextDave Airlie1-1/+1
Linux 4.16-rc7 This was requested by Daniel, and things were getting a bit hard to reconcile, most of the conflicts were trivial though.
2018-03-28Merge remote-tracking branches 'asoc/topic/rt5645', 'asoc/topic/rt5651', ↵Mark Brown2-36/+1
'asoc/topic/rt5659' and 'asoc/topic/rt5660' into asoc-next
2018-03-28Merge remote-tracking branches 'asoc/topic/fsl_esai', 'asoc/topic/fsl_ssi', ↵Mark Brown1-0/+5
'asoc/topic/fsl_utils', 'asoc/topic/generic-dmaengine' and 'asoc/topic/gtm601' into asoc-next
2018-03-28Merge remote-tracking branches 'asoc/topic/da7219', 'asoc/topic/da732x', ↵Mark Brown1-0/+2
'asoc/topic/da9055' and 'asoc/topic/dmic' into asoc-next
2018-03-28Merge remote-tracking branches 'asoc/topic/88pm860x', 'asoc/topic/ab8500', ↵Mark Brown1-3/+10
'asoc/topic/ac97', 'asoc/topic/ad1836' and 'asoc/topic/ad193x' into asoc-next
2018-03-28Merge remote-tracking branch 'asoc/topic/samsung' into asoc-nextMark Brown1-0/+1
2018-03-28Merge remote-tracking branch 'asoc/topic/intel' into asoc-nextMark Brown2-6/+15
2018-03-28Merge remote-tracking branch 'asoc/topic/dapm' into asoc-nextMark Brown1-0/+16
2018-03-28Merge remote-tracking branch 'asoc/topic/component-platform' into asoc-nextMark Brown1-0/+2
2018-03-24ALSA: pcm: Return -EBUSY for OSS ioctls changing busy streamsTakashi Iwai1-0/+1
OSS PCM stream management isn't modal but it allows ioctls issued at any time for changing the parameters. In the previous hardening patch ("ALSA: pcm: Avoid potential races between OSS ioctls and read/write"), we covered these races and prevent the corruption by protecting the concurrent accesses via params_lock mutex. However, this means that some ioctls that try to change the stream parameter (e.g. channels or format) would be blocked until the read/write finishes, and it may take really long. Basically changing the parameter while reading/writing is an invalid operation, hence it's even more user-friendly from the API POV if it returns -EBUSY in such a situation. This patch adds such checks in the relevant ioctls with the addition of read/write access refcount. Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-03-14vga_switcheroo: Use device link for HDA controllerLukas Wunner1-3/+0
Back in 2013, runtime PM for GPUs with integrated HDA controller was introduced with commits 0d69704ae348 ("gpu/vga_switcheroo: add driver control power feature. (v3)") and 246efa4a072f ("snd/hda: add runtime suspend/resume on optimus support (v4)"). Briefly, the idea was that the HDA controller is forced on and off in unison with the GPU. The original code is mostly still in place even though it was never a 100% perfect solution: E.g. on access to the HDA controller, the GPU is powered up via vga_switcheroo_runtime_resume_hdmi_audio() but there are no provisions to keep it resumed until access to the HDA controller has ceased: The GPU autosuspends after 5 seconds, rendering the HDA controller inaccessible. Additionally, a kludge is required when hda_intel.c probes: It has to check whether the GPU is powered down (check_hdmi_disabled()) and defer probing if so. However in the meantime (in v4.10) the driver core has gained a feature called device links which promises to solve such issues in a clean way: It allows us to declare a dependency from the HDA controller (consumer) to the GPU (supplier). The PM core then automagically ensures that the GPU is runtime resumed as long as the HDA controller's ->probe hook is executed and whenever the HDA controller is accessed. By default, the HDA controller has a dependency on its parent, a PCIe Root Port. Adding a device link creates another dependency on its sibling: PCIe Root Port ^ ^ | | | | HDA ===> GPU The device link is not only used for runtime PM, it also guarantees that on system sleep, the HDA controller suspends before the GPU and resumes after the GPU, and on system shutdown the HDA controller's ->shutdown hook is executed before the one of the GPU. It is a complete solution. Using this functionality is as simple as calling device_link_add(), which results in a dmesg entry like this: pci 0000:01:00.1: Linked as a consumer to 0000:01:00.0 The code for the GPU-governed audio power management can thus be removed (except where it's still needed for legacy manual power control). The device link is added in a PCI quirk rather than in hda_intel.c. It is therefore legal for the GPU to runtime suspend to D3cold even if the HDA controller is not bound to a driver or if CONFIG_SND_HDA_INTEL is not enabled, for accesses to the HDA controller will cause the GPU to wake up regardless if they're occurring outside of hda_intel.c (think config space readout via sysfs). Contrary to the previous implementation, the HDA controller's power state is now self-governed, rather than GPU-governed, whereas the GPU's power state is no longer fully self-governed. (The HDA controller needs to runtime suspend before the GPU can.) It is thus crucial that runtime PM is always activated on the HDA controller even if CONFIG_SND_HDA_POWER_SAVE_DEFAULT is set to 0 (which is the default), lest the GPU stays awake. This is achieved by setting the auto_runtime_pm flag on every codec and the AZX_DCAPS_PM_RUNTIME flag on the HDA controller. A side effect is that power consumption might be reduced if the GPU is in use but the HDA controller is not, because the HDA controller is now allowed to go to D3hot. Before, it was forced to stay in D0 as long as the GPU was in use. (There is no reduction in power consumption on my Nvidia GK107, but there might be on other chips.) The code paths for legacy manual power control are adjusted such that runtime PM is disabled during power off, thereby preventing the PM core from resuming the HDA controller. Note that the device link is not only added on vga_switcheroo capable systems, but for *any* GPU with integrated HDA controller. The idea is that the HDA controller streams audio via connectors located on the GPU, so the GPU needs to be on for the HDA controller to do anything useful. This commit implicitly fixes an unbalanced runtime PM ref upon unbind of hda_intel.c: On ->probe, a runtime PM ref was previously released under the condition "azx_has_pm_runtime(chip) || hda->use_vga_switcheroo", but on ->remove a runtime PM ref was only acquired under the first of those conditions. Thus, binding and unbinding the driver twice on a vga_switcheroo capable system caused the runtime PM refcount to drop below zero. The issue is resolved because the AZX_DCAPS_PM_RUNTIME flag is now always set if use_vga_switcheroo is true. For more information on device links please refer to: https://www.kernel.org/doc/html/latest/driver-api/device_link.html Documentation/driver-api/device_link.rst Cc: Dave Airlie <airlied@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Peter Wu <peter@lekensteyn.nl> Tested-by: Kai Heng Feng <kai.heng.feng@canonical.com> # AMD PowerXpress Tested-by: Mike Lothian <mike@fireburn.co.uk> # AMD PowerXpress Tested-by: Denis Lisov <dennis.lissov@gmail.com> # Nvidia Optimus Tested-by: Peter Wu <peter@lekensteyn.nl> # Nvidia Optimus Tested-by: Lukas Wunner <lukas@wunner.de> # MacBook Pro Signed-off-by: Lukas Wunner <lukas@wunner.de> Link: https://patchwork.freedesktop.org/patch/msgid/51bd38360ff502a8c42b1ebf4405ee1d3f27118d.1520068884.git.lukas@wunner.de
2018-03-13ASoC: dapm: add support to pinctrl dapmSrinivas Kandagatla1-0/+16
Purpose of having pinctrl dapm is to dynamically put the pins in low power state when they are not actively used by the audio and saving power. Without this each driver has to set the pinctrl states, either during probe or dynamically depending on the callbacks received from ASoC core. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-03-13ASoC: dmaengine_pcm: document process callbackOlivier Moysan1-0/+2
Add missing description of process callback. Fixes: 78648092ef46 ("ASoC: dmaengine_pcm: add processing support") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-03-13ASoC: rt5651: move definitions of dt-binding constants to include/dt-bindingsHans de Goede1-36/+0
Move the definitions of constants used in the dt-bindings from include/sound/rt5651.h to include/dt-bindings/sound/rt5651.h. As dt-bindings headers may also be parsed by the dt-compiler, they cannot use enums, only defines, so this commit also changes the code declaring the constants to use defines. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-03-12Merge branch 'topic/of' of ↵Mark Brown1-0/+1
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-samsung
2018-03-12ASoC: Add snd_soc_of_put_dai_link_codecs() helper functionSylwester Nawrocki1-0/+1
The code for dereferencing device nodes in the 'codecs' array is moved to a separate function so we can avoid open coding that in drivers. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-03-09ASoC: da7219: Add common clock usage for providing DAI clksAdam Thomson1-0/+2
There is a need to use DA7219 as DAI clock master for other codecs within a system, which means that the DAI clocks are required to remain, regardless of whether the codec is actually running playback/capture. To be able to expose control of the DAI clocking the common clock framework has been employed. The current implementation adds a simple clock gate for enabling and disabling the DAI clocks, with no rate control supported (this is still handled through standard hw_params() functions as before). If DT is enabled then the clock is added to the OF providers list, otherwise a clkdev lookup is used. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-03-07Merge branch 'topic/rt5651' of ↵Mark Brown1-6/+13
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel
2018-03-07ASoC: rt5651: Allow specifying the OVCD scale-factor through a device-propertyHans de Goede1-0/+11
OVer-Current-Detection (OVCD) for the micbias current is used to detect if an inserted jack is a headset or headphones (mic shorted to ground). The threshold for at which current the OVCD triggers on the rt5651 is not only controlled by setting the absolute current limit, but also by setting a scale factor which applies to the limit. Testing has shown that we need to set both (depending on the board). This commit adds support for the sofar unused OVCD scale-factor register and adds support for specifying non-default values for it through the "realtek,over-current-scale-factor" device-property. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-03-07ASoC: rt5651: Configure jack-detect source through a device-propertyHans de Goede1-0/+4
Configure the jack-detect source through a device-property which can be set by code outside of the codec driver. Rather then putting platform specific DMI quirks inside the generic codec driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-03-01Merge branch 'topic/component-platform' of ↵Mark Brown1-0/+2
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel
2018-03-01ASoC: rt5651: Remove unused rt5651_platform_dataHans de Goede1-8/+0
There are no in tree users of platform-data for the rt5651 codec driver, so lets remove support for it. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-26ASoC: dmaengine_pcm: add processing supportOlivier Moysan1-0/+3
Allow dmaengine client to optionally register a processing callback. This callback is intended to apply processing on samples in buffer copied from/to user space, before/after DMA transfer. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-14ALSA: emu10k1: add a IOMMU workaroundMaciej S. Szmigiero1-0/+3
The Audigy 2 CA0102 chip (but most likely others from the emu10k1 family, too) has a problem that from time to time it likes to do few DMA reads a bit beyond its normal allocation and gets very confused if these reads get blocked by a IOMMU. For the first (reserved) page this happens multiple times at every playback, for various synth pages it happens randomly, rarely for PCM playback buffers and the page table memory itself. All these reads seem to follow a similar pattern, observed read offsets beyond the allocation end were 0x00, 0x40, 0x80 and 0xc0 (PCI cache line multiples), so it looks like the device tries to accesses up to 256 extra bytes. As a workaround let's widen these DMA allocations by an extra page if we detect that the device is behind a non-passthrough IOMMU (the DMA memory should be relatively plenty on IOMMU systems). Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-14ALSA: emu10k1: remove reserved_pageMaciej S. Szmigiero1-1/+0
The emu10k1-family chips need the first page (index 0) reserved in their page tables for some reason (every emu10k1 driver I've checked does this without much of an explanation). Using the first page for normal samples results in a broken playback. However, we already have a dummy page allocated - so called "silent page" and, in fact, had always been setting it as the first page in the chip page table because an initialization of every entry of the page table to point to a silent page happens after and overwrites the reserved_page allocation. So the only thing remaining to remove the reserved_page allocation is a trivial change to the page allocation logic to ignore the first page entry and start its allocations from the second entry (index 1). Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-12Merge branch 'topic/hda-sync-power' into for-nextTakashi Iwai1-0/+2
Pull the HD-audio power sync fix. This is shared with ASoC. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-12ALSA: hda: Copying sync power state helper to coreAbhijeet Kumar1-0/+2
The current sync_power_state is local to hda code, moving it core so that other users apart from hda legacy can use it. The helper function ensures the actual state reaches the target state. Signed-off-by: Abhijeet Kumar <abhijeet.kumar@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-12ASoC: soc-generic-dmaengine-pcm: replace platform to componentKuninori Morimoto1-0/+2
Now platform can be replaced to component, let's do it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-12ASoC: ac97: replace codec to componentKuninori Morimoto1-3/+10
Now we can replace Codec to Component. Let's do it. Note: xxx_codec_xxx() -> xxx_component_xxx() .idle_bias_off = 0 -> .idle_bias_on = 1 .ignore_pmdown_time = 0 -> .use_pmdown_time = 1 - -> .endianness = 1 - -> .non_legacy_dai_naming = 1 To keep compatibilty, this patch adds snd_soc_xxx_ac97_codec() macro. These will be removed when all codec code was removed. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-12ASoC: rt5659: Add the support of Intel HDA Headeroder_chiou@realtek.com1-0/+1
The patch adds the support of Intel HDA Header. Signed-off-by: Oder Chiou <oder_chiou@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-02-12Merge branch 'topic/fixes' into for-linusTakashi Iwai1-1/+1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-12ALSA: ac97: Fix copy and paste typo in documentationMatthias Lange1-1/+1
It's 'optional' instead of 'optinal'. Signed-off-by: Matthias Lange <matthias.lange@kernkonzept.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-07Merge tag 'asoc-v4.16-5' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound Pull more ASoC updates from Mark Brown: "With the merge window having been delayed for another week here's another batch of updates that came in during that week. There's a few important fixes in here, mainly a fix for I/O on a number of devices caused by some of the component rework and a fix for a potential issue if more than one component in a link provides compressed operations. The I/O fixes are particularly important as the problem causes a power regression on a number of OMAP platforms" * tag 'asoc-v4.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound: (22 commits) ASoC: stm32: add of dependency for stm32 drivers ASoC: mt8173-rt5650: fix child-node lookup ASoC: dapm: fix debugfs read using path->connected ASoC: compress: Fixup error messages ASoC: compress: Remove some extraneous blank lines ASoC: compress: Correct handling of copy callback ASoC: Intel: kbl: Enable mclk and ssp sclk early ASoC: Intel: Skylake: Add extended I2S config blob support in Clock driver ASoC: Intel: Skylake: Add ssp clock driver ASoC: Fix twl4030 and 6040 regression by adding back read and write ASoC: sun8i-codec: Add ADC support for a33 ASoC: rockchip: Use dummy_dai for rt5514 dsp dailink ASoC: soc-pcm: rename .pmdown_time to .use_pmdown_time for Component ASoC: ak4613: call dummy write for PW_MGMT1/3 when Playback ASoC: soc-pcm: don't call flush_delayed_work() many times in soc_pcm_private_free() ASoC: soc-core: snd_soc_rtdcom_lookup() cares component driver name ASoC: sam9x5_wm8731: Drop 'ASoC' prefix from error messages ASoC: sam9g20_wm8731: use dev_*() logging functions ASoC: max98373 Changed SPDX header in C++ comments style ASoC: dmic: Fix check of return value from read of 'num-channels' ...
2018-02-07Merge remote-tracking branches 'asoc/topic/max98373', 'asoc/topic/mtk', ↵Mark Brown1-1/+1
'asoc/topic/pcm', 'asoc/topic/rockchip' and 'asoc/topic/sam9g20_wm8731' into asoc-next
2018-02-07Merge remote-tracking branches 'asoc/topic/ak4613', 'asoc/topic/core', ↵Mark Brown2-7/+6
'asoc/topic/dmic' and 'asoc/topic/intel' into asoc-next
2018-01-31Merge branch 'misc.poll' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull poll annotations from Al Viro: "This introduces a __bitwise type for POLL### bitmap, and propagates the annotations through the tree. Most of that stuff is as simple as 'make ->poll() instances return __poll_t and do the same to local variables used to hold the future return value'. Some of the obvious brainos found in process are fixed (e.g. POLLIN misspelled as POLL_IN). At that point the amount of sparse warnings is low and most of them are for genuine bugs - e.g. ->poll() instance deciding to return -EINVAL instead of a bitmap. I hadn't touched those in this series - it's large enough as it is. Another problem it has caught was eventpoll() ABI mess; select.c and eventpoll.c assumed that corresponding POLL### and EPOLL### were equal. That's true for some, but not all of them - EPOLL### are arch-independent, but POLL### are not. The last commit in this series separates userland POLL### values from the (now arch-independent) kernel-side ones, converting between them in the few places where they are copied to/from userland. AFAICS, this is the least disruptive fix preserving poll(2) ABI and making epoll() work on all architectures. As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and it will trigger only on what would've triggered EPOLLWRBAND on other architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered at all on sparc. With this patch they should work consistently on all architectures" * 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits) make kernel-side POLL... arch-independent eventpoll: no need to mask the result of epi_item_poll() again eventpoll: constify struct epoll_event pointers debugging printk in sg_poll() uses %x to print POLL... bitmap annotate poll(2) guts 9p: untangle ->poll() mess ->si_band gets POLL... bitmap stored into a user-visible long field ring_buffer_poll_wait() return value used as return value of ->poll() the rest of drivers/*: annotate ->poll() instances media: annotate ->poll() instances fs: annotate ->poll() instances ipc, kernel, mm: annotate ->poll() instances net: annotate ->poll() instances apparmor: annotate ->poll() instances tomoyo: annotate ->poll() instances sound: annotate ->poll() instances acpi: annotate ->poll() instances crypto: annotate ->poll() instances block: annotate ->poll() instances x86: annotate ->poll() instances ...
2018-01-24ASoC: soc-pcm: rename .pmdown_time to .use_pmdown_time for ComponentKuninori Morimoto1-1/+1
commit fbb16563c6c2 ("ASoC: snd_soc_component_driver has pmdown_time") added new .pmdown_time which is for inverted version of current .ignore_pmdown_time But it is confusable name. Let's rename it to .use_pmdown_time Reported-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-18Merge remote-tracking branches 'asoc/topic/stm32', 'asoc/topic/sun4i-i2s', ↵Mark Brown1-3/+0
'asoc/topic/sunxi', 'asoc/topic/symmetry' and 'asoc/topic/tas5720' into asoc-next
2018-01-18Merge remote-tracking branches 'asoc/topic/rl6231', 'asoc/topic/rt5514', ↵Mark Brown2-0/+5
'asoc/topic/rt5645' and 'asoc/topic/samsung' into asoc-next
2018-01-18Merge remote-tracking branches 'asoc/topic/fsl', 'asoc/topic/fsl-ssi', ↵Mark Brown2-0/+10
'asoc/topic/fsl_asrc' and 'asoc/topic/hdac_hdmi' into asoc-next
2018-01-18Merge remote-tracking branches 'asoc/topic/cs47l24', 'asoc/topic/cx20442', ↵Mark Brown1-3/+1
'asoc/topic/da7213', 'asoc/topic/da7218' and 'asoc/topic/dai-drv' into asoc-next
2018-01-18Merge remote-tracking branch 'asoc/topic/rcar' into asoc-nextMark Brown1-0/+2
2018-01-18Merge remote-tracking branch 'asoc/topic/intel' into asoc-nextMark Brown2-12/+5
2018-01-18Merge remote-tracking branch 'asoc/topic/core' into asoc-nextMark Brown1-0/+3
2018-01-16ASoC: add Component level .read/.writeKuninori Morimoto1-0/+3
In current ALSA SoC, Codec only has .read/.write callback. Codec will be merged into Component in next generation ALSA SoC, thus current Codec specific feature need to be merged into it. This is glue patch for it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-13ASoC: Intel - Convert to use acpi_dev_get_first_match_name()Andy Shevchenko1-7/+0
Instead of home grown snd_soc_acpi_find_name_from_hid() use acpi_dev_get_first_match_name(). Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-13Merge branch 'topic/hdac-hdmi' of ↵Mark Brown1-2/+2
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-intel