- 03 1月, 2020 2 次提交
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由 Takashi Iwai 提交于
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/20200103081714.9560-37-tiwai@suse.deSigned-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Now we may declare const for snd_device_ops definitions, so let's do it for optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-9-tiwai@suse.deSigned-off-by: NTakashi Iwai <tiwai@suse.de>
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- 22 7月, 2019 1 次提交
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由 Ranjani Sridharan 提交于
snd_hdac_ext_bus_device_exit() has been recently modified to no longer free the hdac device. SOF allocates memory for hdac_device and hda_hda_priv with kzalloc. Make them device-managed instead so that they will be freed when the SOF driver is unloaded. Because of the above change, hda_codec is device-managed and it will be freed when the ASoC device is removed. Freeing the codec in snd_hda_codec_dev_release() leads to kernel panic while unloading and reloading the ASoC driver. So, avoid freeing the hda_codec for ASoC driver. This is done in the same patch to avoid bisect failure. Signed-off-by: NLibin Yang <libin.yang@intel.com> Signed-off-by: NRanjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: NTakashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20190626070450.7229-1-ranjani.sridharan@linux.intel.comSigned-off-by: NMark Brown <broonie@kernel.org>
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- 18 7月, 2019 1 次提交
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由 Takashi Iwai 提交于
The codecs without jack detection also don't have to be resumed forcibly because, obviously, they have no jack. Skip the forced resume in such a case as optimization as well. Reviewed-by: NKai Vehmanen <kai.vehmanen@linux.intel.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 17 7月, 2019 1 次提交
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由 Takashi Iwai 提交于
We apply the codec resume forcibly at system resume callback for updating and syncing the jack detection state that may have changed during sleeping. This is, however, superfluous for the codec like Intel HDMI/DP, where the jack detection is managed via the audio component notification; i.e. the jack state change shall be reported sooner or later from the graphics side at mode change. This patch changes the codec resume callback to avoid the forcible resume conditionally with a new flag, codec->relaxed_resume, for reducing the resume time. The flag is set in the codec probe. Although this doesn't fix the entire bug mentioned in the bugzilla entry below, it's still a good optimization and some improvements are seen. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=201901 Cc: <stable@vger.kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 05 7月, 2019 1 次提交
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由 Takashi Iwai 提交于
Along with the recent fix for the races of snd_hdac_refresh_widgets() it turned out that the instantiation of widgets sysfs at snd_hdac_sysfs_reinit() could cause a race. The race itself was already covered later by extending the mutex protection range, the commit 98482377 ("ALSA: hda: Fix widget_mutex incomplete protection"), but this also indicated that the call of *_reinit() is basically superfluous, as the widgets shall be created sooner or later from snd_hdac_device_register(). This patch removes the redundant call of snd_hdac_sysfs_reinit() at first. By this removal, the sysfs argument itself in snd_hdac_refresh_widgets() becomes superfluous, too, because the only case sysfs=false is always with codec->widgets=NULL. So, we drop this redundant argument as well. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 04 6月, 2019 1 次提交
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由 Ranjani Sridharan 提交于
HDA_DEV_ASOC type codec device refcounts are managed differently from HDA_DEV_LEGACY devices. The refcount is released explicitly in snd_hdac_ext_bus_device_remove() for ASOC type devices. So, remove the put_device() call in snd_hda_codec_dev_free() for such devices to make the refcount balanced. This will prevent the NULL pointer exception when the codec driver is released after the card is freed. Signed-off-by: NRanjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: NTakashi Iwai <tiwai@suse.de> Signed-off-by: NMark Brown <broonie@kernel.org>
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- 31 5月, 2019 1 次提交
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由 Takashi Iwai 提交于
For code simplification and safety, use struct_size() macro for calculating the hda_conn_list object size with the variable array. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 24 5月, 2019 1 次提交
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由 Thomas Gleixner 提交于
Based on 1 normalized pattern(s): this driver 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 driver 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 18 file(s). Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NAllison Randal <allison@lohutok.net> Reviewed-by: NKate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170857.186505395@linutronix.deSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 29 4月, 2019 1 次提交
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由 Bard liao 提交于
snd_hda_codec_device_new() is used by both legacy HDA and ASoC driver. However, we will call snd_hdac_device_unregister() in snd_hdac_ext_bus_device_remove() for ASoC device. This patch uses the type flag in hdac_device struct to determine is it a ASoC device or legacy HDA device and call snd_hdac_device_unregister() in snd_hda_codec_dev_free() only if it is a legacy HDA device. Signed-off-by: NBard liao <yung-chuan.liao@linux.intel.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 13 4月, 2019 1 次提交
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由 Takashi Iwai 提交于
The recent commit 98081ca6 ("ALSA: hda - Record the current power state before suspend/resume calls") made the HD-audio driver to store the PM state in power_state field. This forgot, however, the initialization at power up. Although the codec drivers usually don't need to refer to this field in the normal operation, let's initialize it properly for consistency. Fixes: 98081ca6 ("ALSA: hda - Record the current power state before suspend/resume calls") Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 19 3月, 2019 1 次提交
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由 Hui Wang 提交于
Recently we found the audio jack detection stop working after suspend on many machines with Realtek codec. Sometimes the audio selection dialogue didn't show up after users plugged headhphone/headset into the headset jack, sometimes after uses plugged headphone/headset, then click the sound icon on the upper-right corner of gnome-desktop, it also showed the speaker rather than the headphone. The root cause is that before suspend, the codec already call the runtime_suspend since this codec is not used by any apps, then in resume, it will not call runtime_resume for this codec. But for some realtek codec (so far, alc236, alc255 and alc891) with the specific BIOS, if it doesn't run runtime_resume after suspend, all codec functions including jack detection stop working anymore. This problem existed for a long time, but it was not exposed, that is because when problem happens, if users play sound or open sound-setting to check audio device, this will trigger calling to runtime_resume (via snd_hda_power_up), then the codec starts working again before users notice this problem. Since we don't know how many codec and BIOS combinations have this problem, to fix it, let the driver call runtime_resume for all codecs in pm_resume, maybe for some codecs, this is not needed, but it is harmless. After a codec is runtime resumed, if it is not used by any apps, it will be runtime suspended soon and furthermore we don't run suspend frequently, this change will not add much power consumption. Fixes: cc72da7d ("ALSA: hda - Use standard runtime PM for codec power-save control") Signed-off-by: NHui Wang <hui.wang@canonical.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 30 1月, 2019 2 次提交
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由 Takashi Iwai 提交于
Currently the registration and free of beep input device was done manually from the register and the disconnect callbacks of the assigned codec object. This seems working in most cases, but this may be a cause of some races at probe. Moreover, due to these manual calls, the total code became unnecessarily lengthy. This patch rewrites the beep registration code to follow the standard sound device object style. This allows us reducing the code, in addition to avoiding the nested device registration calls. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Currently we deal with single codec and suspend codec callbacks for all S3, S4 and runtime PM handling. But it turned out that we want distinguish the call patterns sometimes, e.g. for applying some init sequence only at probing and restoring from hibernate. This patch slightly modifies the common PM callbacks for HD-audio codec and stores the currently processed PM event in power_state of the codec's device.power field, which is currently unused. The codec callback can take a look at this event value and judges which purpose it's being called. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 21 1月, 2019 1 次提交
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由 Takashi Iwai 提交于
The unused variable was forgotten to be removed and now we get a compiler warning: sound/pci/hda/hda_codec.c: In function 'hda_codec_runtime_suspend': sound/pci/hda/hda_codec.c:2926:18: warning: unused variable 'pcm' Fixes: 17bc4815 ("ALSA: pci: Remove superfluous snd_pcm_suspend*() calls") Reported-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 16 1月, 2019 1 次提交
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由 Takashi Iwai 提交于
The call of snd_pcm_suspend_all() & co became superfluous since we call it in the PCM PM ops. Let's remove them. Reviewed-by: NJaroslav Kysela <perex@perex.cz> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 11 12月, 2018 1 次提交
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由 Takashi Iwai 提交于
The current HD-audio code manages the DRM audio power via too complex redirections, and this seems even still unbalanced in a corner case as Intel DRM CI has been intermittently reporting. This patch is a big surgery for addressing the complexity and the possible unbalance. Basically the patch changes the display PM in the following ways: - Both HD-audio controller and codec drivers call a single helper, snd_hdac_display_power(). (Formerly, the display power control from a codec was done indirectly via link_power bus ops.) - snd_hdac_display_power() receives the codec address index. For turning on/off from the controller, pass HDA_CODEC_IDX_CONTROLLER. - snd_hdac_display_power() doesn't manage refcounts any longer, but keeps the power status in bitmap. If any of controller or codecs is turned on, the function updates the DRM power state via get_power() or put_power(). Also this refactor allows us more cleanup: - The link_power bus ops is dropped, so there is no longer indirect management, as mentioned in the above. - hdac_device link_power_control flag is moved to hda_codec display_power_control flag, as it's only for HDA legacy. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106525Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 30 8月, 2018 2 次提交
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由 Pierre-Louis Bossart 提交于
As suggested by Takashi, move this header file to make it easier to include from e.g. the Intel Skylake driver in follow-up patches Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: NMark Brown <broonie@kernel.org>
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由 Takashi Iwai 提交于
On AMD/ATI controllers, the HD-audio controller driver allows a bus reset upon the error recovery, and its procedure includes the cancellation of pending jack polling work as found in snd_hda_bus_codec_reset(). This works usually fine, but it becomes a problem when the reset happens from the jack poll work itself; then calling cancel_work_sync() from the work being processed tries to wait the finish endlessly. As a workaround, this patch adds the check of current_work() and applies the cancel_work_sync() only when it's not from the jackpoll_work. This doesn't fix the root cause of the reported error below, but at least, it eases the unexpected stall of the whole system. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=200937 Cc: <stable@vger.kernel.org> Cc: Lukas Wunner <lukas@wunner.de> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 29 8月, 2018 1 次提交
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由 Pierre-Louis Bossart 提交于
As suggested by Takashi, move this header file to make it easier to include from e.g. the Intel Skylake driver in follow-up patches Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: NMark Brown <broonie@kernel.org>
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- 26 7月, 2018 1 次提交
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由 Takashi Iwai 提交于
The knew->iface field is in snd_ctl_elem_iface_t, which is with __bitwise, hence it can't be converted implicitly from integer. Give an explicit cast for the invalid type. Spotted by sparse: sound/pci/hda/hda_codec.c:3280:25: warning: restricted snd_ctl_elem_iface_t degrades to integer Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 28 6月, 2018 2 次提交
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由 Rakesh Ughreja 提交于
Split snd_hda_codec_new into two separate functions. snd_hda_codec_device_init allocates memory and registers with bus. snd_hda_codec_device_new initialializes the fields and performs snd_device_new. This enables reuse of legacy HDA codec drivers as ASoC codec drivers. In addition mark some functions with EXPORT_SYMBOL_GPL so that it can be called by ASoC wrapper around the legacy HDA driver (hdac_hda). Signed-off-by: NRakesh Ughreja <rakesh.a.ughreja@intel.com> Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
The in_pm atomic in hdac_device is an important field used as a flag as well as a refcount for PM. The existing snd_hdac_power_up/down helpers already refer to it in the HD-audio core code, while the code to actually setting the value (atomic_inc() / _dec()) is open-coded in HDA legacy side, which is hard to find. This patch adds the helper functions to set/reset the in_pm counter to HDA core and use them in HDA legacy side, for making it clearer who / where the PM is managed. There is no functional changes, just code refactoring. Reviewed-by: NChris Wilson <chris@chris-wilson.co.uk> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 27 6月, 2018 1 次提交
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由 Takashi Iwai 提交于
snd_hda_codec_update_cache() used to serve for a slightly different purpose from snd_hdac_write_cache(), but now both of them became identical. Let's unify and replace with the latter one consistently. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 21 6月, 2018 1 次提交
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由 Takashi Iwai 提交于
Henning Kühn reported that the discrete AMD GPU on his hybrid graphics laptop no longer runtime-suspends due to the recent commit 07f4f97d ("vga_switcheroo: Use device link for HDA controller"). The root cause is that the HDMI codec on AMD GPU doesn't support CLKSTOP and EPSS, which are currently mandatory for powering down the HD-audio link at runtime suspend. Because the HD-audio link is still up, HD-audio controller driver blocks the transition to D3. For addressing the regression, this patch adds a new flag to indicate the forced link-down, and sets it for AMD HDMI codecs appropriately in the codec driver. Fixes: 07f4f97d ("vga_switcheroo: Use device link for HDA controller") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106957Reported-by: NLukas Wunner <lukas@wunner.de> Reported-and-tested-by: NHenning Kühn <prg@cooco.de> Cc: <stable@vger.kernel.org> # v4.17+ Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 13 6月, 2018 1 次提交
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由 Kees Cook 提交于
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: NKees Cook <keescook@chromium.org>
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- 14 5月, 2018 1 次提交
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由 Takashi Sakamoto 提交于
A series of SNDRV_CTL_TLVO_XXX macro was introduced for position offset of TLV data. This commit applies a code optimization. Signed-off-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 24 4月, 2018 2 次提交
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由 Takashi Iwai 提交于
Put WARN_ON() and bail out if the given index is over the allocated array of the given SPDIF controls. It's merely a sanity check to catch any potential issues (if any). Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Introduce a new helper macro, snd_array_for_each(), to iterate for each snd_array element. It slightly improves the readability than lengthy open codes at each place. Along with it, add const prefix to some obvious places. There should be no functional changes by this. Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 12 2月, 2018 1 次提交
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由 Abhijeet Kumar 提交于
Since sync_power_state is moved to core it's better to use the helper function to ensure the actual power state reaches target instead of using the local helper functions already exsisting in hda code. Signed-off-by: NAbhijeet Kumar <abhijeet.kumar@intel.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 22 11月, 2017 1 次提交
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由 Takashi Iwai 提交于
The previous fix for addressing the breakage in vmaster slave initialization, commit a91d6612 ("ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal"), introduced a new helper to process over each slave kctl. However, this helper passes only the original kctl, not the virtual slave kctl. As a result, HD-audio driver (which is the only user so far) couldn't initialize the slave correctly because it's trying to update the value directly with the original kctl, not with the mapped kctl. This patch fixes the situation again by passing both the mapped slaved and original slave kctls to the function. Luckily there is a single caller as of now, so changing the call signature is no big matter. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197959 Fixes: a91d6612 ("ALSA: hda - Fix incorrect TLV callback check introduced during set_fs() removal") Cc: <stable@vger.kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 19 10月, 2017 1 次提交
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由 Takashi Iwai 提交于
The refresh of HD-audio widget sysfs kobjects via snd_hdac_refresh_widget_sysfs() is slightly racy. The driver recreates the whole tree from scratch after deleting the whole. When CONFIG_DEBUG_KOBJECT_RELEASE option is used, kobject release doesn't happen immediately but delayed, while the re-creation of the same named kobject happens soon after invoking kobject_put(). This may end up with the conflicts of duplicated kobjects, as found in the bug report below. In this patch, we take another approach to refresh the tree: instead of recreating the whole tree, just add the new nodes and delete the non-existing nodes. Since the refresh happens only once at initialization, no longer race would happen. Along with the code change, merge snd_hdac_refresh_widget_sysfs() with the existing snd_hdac_refresh_widgets() with an additional bool flag for simplifying the code. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=197307Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 18 10月, 2017 2 次提交
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由 Takashi Iwai 提交于
The commit 99b5c5bb ("ALSA: hda - Remove the use of set_fs()") converted the get_kctl_0dB_offset() call for killing set_fs() usage in HD-audio codec code. The conversion assumed that the TLV callback used in HD-audio code is only snd_hda_mixer_amp() and applies the TLV calculation locally. Although this assumption is correct, and all slave kctls are actually with that callback, the current code is still utterly buggy; it doesn't hit this condition and falls back to the next check. It's because the function gets called after adding slave kctls to vmaster. By assigning a slave kctl, the slave kctl object is faked inside vmaster code, and the whole kctl ops are overridden. Thus the callback op points to a different value from what we've assumed. More badly, as reported by the KERNEXEC and UDEREF features of PaX, the code flow turns into the unexpected pitfall. The next fallback check is SNDRV_CTL_ELEM_ACCESS_TLV_READ access bit, and this always hits for each kctl with TLV. Then it evaluates the callback function pointer wrongly as if it were a TLV array. Although currently its side-effect is fairly limited, this incorrect reference may lead to an unpleasant result. For addressing the regression, this patch introduces a new helper to vmaster code, snd_ctl_apply_vmaster_slaves(). This works similarly like the existing map_slaves() in hda_codec.c: it loops over the slave list of the given master, and applies the given function to each slave. Then the initializer function receives the right kctl object and we can compare the correct pointer instead of the faked one. Also, for catching the similar breakage in future, give an error message when the unexpected TLV callback is found and bail out immediately. Fixes: 99b5c5bb ("ALSA: hda - Remove the use of set_fs()") Reported-by: NPaX Team <pageexec@freemail.hu> Cc: <stable@vger.kernel.org> # v4.13 Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
While converting the error messages to the standard macros in the commit 4e76a883 ("ALSA: hda - Replace with standard printk"), a superfluous '-' slipped in the code mistakenly. Its influence is almost negligible, merely shows a dB value as negative integer instead of positive integer (or vice versa) in the rare error message. So let's kill this embarrassing byte to show more correct value. Fixes: 4e76a883 ("ALSA: hda - Replace with standard printk") Cc: <stable@vger.kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 03 9月, 2017 1 次提交
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由 Wang YanQing 提交于
Commit fb087eaa ("ALSA: hda - hdmi eld control created based on pcm") forget to filter out invalid pcm numbers, if there is only one invalid pcm number, then this issue causes we create eld control for invalid pcm silently, but when there are more than one invalid pcm numbers, then this issue bring probe error looks like below dmesg: " kernel: [ 1.647283] snd_hda_intel 0000:00:03.0: bound 0000:00:02.0 (ops 0xc2967540) kernel: [ 1.651192] snd_hda_intel 0000:00:03.0: Too many HDMI devices kernel: [ 1.651195] snd_hda_intel 0000:00:03.0: Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y kernel: [ 1.651197] snd_hda_intel 0000:00:03.0: Too many HDMI devices kernel: [ 1.651199] snd_hda_intel 0000:00:03.0: Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y kernel: [ 1.651201] snd_hda_intel 0000:00:03.0: Too many HDMI devices kernel: [ 1.651203] snd_hda_intel 0000:00:03.0: Consider building the kernel with CONFIG_SND_DYNAMIC_MINORS=y kernel: [ 1.651676] snd_hda_intel 0000:00:03.0: control 3:0:0:ELD:0 is already present kernel: [ 1.651787] snd_hda_codec_hdmi: probe of hdaudioC0D0 failed with error -16 " This patch add invalid pcm number filter before calling hdmi_create_eld_ctl. Fixes: fb087eaa ("ALSA: hda - hdmi eld control created based on pcm") Signed-off-by: NWang YanQing <udknight@gmail.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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- 17 5月, 2017 5 次提交
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由 Takashi Iwai 提交于
Reviewed-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Reviewed-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
set_fs() is used in HD-audio vmaster code to retrieve the TLV data of each slave kctl. Since the slave is supposed to be a standard amp kctl, we can call directly the supposed tlv callback instead of the indirect call, so that we can remove the set_fs() hack. Reviewed-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
Now all the users of this workaround code is gone, and we can finally remove the legacy codes from the core HD-audio module. Reviewed-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Takashi Iwai 提交于
The generic parser is the only user of the bind-mixer controls, so we can move the code there and clean up the core helper. Reviewed-by: NTakashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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