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2026-06-04dt-bindings: ethernet: eswin: fix hsp-sp-csr backward compatibilityZhi Li
Commit c36069c6f46c ("dt-bindings: ethernet: eswin: add optional TXD and RXD delay register offsets") added two optional cells to eswin,hsp-sp-csr but omitted minItems: 4. As a result, dt-schema implicitly required all 6 cells, which broke backward compatibility with existing 4-cell device trees. Add minItems: 4 to preserve backward compatibility. Fixes: c36069c6f46c ("dt-bindings: ethernet: eswin: add optional TXD and RXD delay register offsets") Reported-by: Sashiko AI <sashiko-bot@kernel.org> Closes: https://lore.kernel.org/all/20260519022334.35742C2BCB7@smtp.kernel.org/ Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com> Signed-off-by: Zhi Li <lizhi2@eswincomputing.com> Link: https://patch.msgid.link/20260602014528.2076-1-lizhi2@eswincomputing.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-04sctp: validate cached peer INIT chunk length in COOKIE_ECHO processingXin Long
When a listening SCTP server processes a COOKIE_ECHO chunk, the cached peer INIT chunk embedded after the cookie is parsed and its parameters are later walked by sctp_process_init() using sctp_walk_params(). However, the chunk header length of this cached INIT chunk was not validated against the remaining buffer in the COOKIE_ECHO payload. If the length field is inflated, the parameter walk can run beyond the actual received data, leading to out-of-bounds reads and potential memory corruption during later parameter handling (e.g. STATE_COOKIE processing and kmemdup() copies). Add a bounds check in sctp_unpack_cookie() to ensure the cached INIT chunk length does not exceed the available data in the COOKIE_ECHO buffer before it is used. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Brian Geffon <bgeffon@google.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Link: https://patch.msgid.link/eb60825fa22d6f9e663c7d4dbb69f397b5d34d42.1780362366.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-04net/sched: fix pedit partial COW leading to page cache corruptionRajat Gupta
tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hint does not account for the runtime header offset added by typed keys. This can leave part of the write region un-COW'd. Fix by moving skb_ensure_writable() inside the per-key loop where the actual write offset is known, and add overflow checking on the offset arithmetic. For negative offsets (e.g. Ethernet header edits at ingress), use skb_cow() to COW the headroom instead. Guard offset_valid() against INT_MIN, where negation is undefined. Fixes: 8b796475fd78 ("net/sched: act_pedit: really ensure the skb is writable") Reported-by: Yiming Qian <yimingqian591@gmail.com> Reported-by: Keenan Dong <keenanat2000@gmail.com> Reported-by: Han Guidong <2045gemini@gmail.com> Reported-by: Zhang Cen <rollkingzzc@gmail.com> Reviewed-by: Han Guidong <2045gemini@gmail.com> Tested-by: Han Guidong <2045gemini@gmail.com> Reviewed-by: Davide Caratti <dcaratti@redhat.com> Tested-by: Davide Caratti <dcaratti@redhat.com> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Tested-by: Toke Høiland-Jørgensen <toke@redhat.com> Reviewed-by: Victor Nogueira <victor@mojatatu.com> Tested-by: Victor Nogueira <victor@mojatatu.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Rajat Gupta <rajat.gupta@oss.qualcomm.com> Link: https://patch.msgid.link/20260531123221.48732-1-jhs@mojatatu.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Set the Link End (LE) bit on the last descriptorClaudiu Beznea
On an RZ/G2L-based system, it has been observed that when the DMA channels for all enabled IPs are active (TX and RX for one serial IP, TX and RX for one audio IP, and TX and RX for one SPI IP), shortly after all of them are started, the system can become irrecoverably blocked. In one debug session the system did not block, and the DMA HW registers were inspected. It was found that the DER (Descriptor Error) bit in the CHSTAT register for one of the SPI DMA channels was set. According to the RZ/G2L HW Manual, Rev. 1.30, chapter 14.4.7 Channel Status Register n/nS (CHSTAT_n/nS), description of the DER bit, the DER bit is set when the LV (Link Valid) value loaded with a descriptor in link mode is 0. This means that the DMA engine has loaded an invalid descriptor (as defined in Table 14.14, Header Area, of the same manual). The same chapter states that when a descriptor error occurs, the transfer is stopped, but no DMA error interrupt is generated. Set the LE bit on the last descriptor of a transfer. This informs the DMA engine that this is the final descriptor for the transfer. Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-19-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04ASoC: renesas: rz-ssi: Use generic PCM dmaengine APIsClaudiu Beznea
On Renesas RZ/G2L and RZ/G3S SoCs (where this was tested), captured audio files occasionally contained random spikes when viewed with a tool such as Audacity. These spikes were also audible as popping noises. Using cyclic DMA resolves this issue. The driver was reworked to use the existing support provided by the generic PCM dmaengine APIs. In addition to eliminating the random spikes, the following issues were addressed: - blank periods at the beginning of recorded files, which occurred intermittently, are no longer present - no overruns or underruns were observed when continuously recording short audio files (e.g. 5 seconds long) in a loop - concurrency issues in the SSI driver when enqueuing DMA requests were eliminated; previously, DMA requests could be prepared and submitted both from the DMA completion callback and the interrupt handler, which led to crashes after several hours of testing - the SSI driver logic is simplified - the number of generated interrupts is reduced by approximately 250% In the SSI platform driver probe function, the following changes were made: - the driver-specific DMA configuration was removed in favor of the generic PCM dmaengine APIs. As a result, explicit cleanup goto labels are no longer required and the driver remove callback was dropped, since resource management is now handled via devres helpers - special handling was added for IP variants operating in half-duplex mode, where the DMA channel name in the device tree is "rt"; this DMA channel name is taken into account and passed to the generic PCM dmaengine configuration data All code previously responsible for preparing and completing DMA transfers was removed, as this functionality is now handled entirely by the generic PCM dmaengine APIs. Since DMA channels must be paused and resumed during recovery paths (overruns and underruns reported by the hardware), the DMA channel references are stored in rz_ssi_hw_params(). The logic in rz_ssi_is_dma_enabled() was updated to reflect that the driver no longer manages DMA transfers directly. To avoid software reported underruns (e.g. when running aplay during consecutive suspend/resume cycles, or when the CPU is nearly 100% loaded), rz_ssi_pcm_hardware.buffer_bytes_max was increased to 192K. At the same time, rz_ssi_pcm_hardware.period_bytes_max was set to 48K to reduce interrupt overhead. Finally, rz_ssi_stream_is_play() was removed, as it had only a single remaining user after this rework, and its logic was inlined at the call site. Acked-by: Mark Brown <broonie@kernel.org> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-18-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04ASoC: renesas: rz-ssi: Add pause supportClaudiu Beznea
Add pause support as a preparatory step to switch to PCM dmaengine APIs. Acked-by: Mark Brown <broonie@kernel.org> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-17-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Add suspend to RAM supportClaudiu Beznea
The Renesas RZ/G3S SoC supports a power saving mode in which power to most of the SoC components is turned off, including the DMA IP. Add suspend to RAM support to save and restore the DMA IP registers. Cyclic DMA channels require special handling. Since they can be paused and resumed during system suspend/resume, the driver restores additional registers for these channels during the system resume phase. If a channel was not explicitly paused during suspend, the driver ensures that it is paused and resumed as part of the system suspend/resume flow. Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-16-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Add runtime PM supportClaudiu Beznea
Protect the driver exposed APIs with runtime PM suspend/resume calls before accessing HW registers. As the current driver leaves runtime PM enabled in probe, the purpose of the changes in this patch is to avoid accessing HW registers after a failed system suspend leaves the runtime PM state of the device improperly reinitialized. In that case, the driver remains bound to the device, the APIs are still exposed, and any access to HW registers without runtime resuming the device may lead to synchronous aborts. To avoid leaking resources in case of runtime PM failures, save the error code returned by PM_RUNTIME_ACQUIRE_ERR() in rz_dmac_terminate_all() and return it only at the end of the function to allow the cleanup code to run. A similar approach is used in rz_dmac_free_chan_resources(). Because some exposed APIs (e.g. ->device_terminate_all()) may be called from atomic context according to the documentation, mark the DMA device as pm_runtime_irq_safe(). This patch prepares the driver for suspend-to-RAM support. Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-15-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Adjust rz_dmac_chan_get_residue() to return error codesClaudiu Beznea
Adjust rz_dmac_chan_get_residue() to return error codes on failure and provide the residue to callers through the residue parameter. This prepares the code for the addition of runtime PM support. Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-14-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Add cyclic DMA supportClaudiu Beznea
Add cyclic DMA support to the RZ DMAC driver. A per-channel status bit is introduced to mark cyclic channels and is set during the DMA prepare callback. The IRQ handler checks this status bit and calls vchan_cyclic_callback() accordingly. Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-13-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Drop the update of channel->chctrl with CHCTRL_SETENClaudiu Beznea
The CHCTRL_SETEN bit is explicitly set in rz_dmac_enable_hw(). Updating struct rz_dmac_chan::chctrl with this bit in rz_dmac_prepare_desc_for_memcpy() and rz_dmac_prepare_descs_for_slave_sg() is unnecessary in the current code base. Moreover, it conflicts with the configuration sequence that will be used for cyclic DMA channels during suspend to RAM. Cyclic DMA support will be introduced in subsequent commits. This is a preparatory commit for cyclic DMA suspend to RAM support. Reviewed-by: Frank Li <Frank.Li@nxp.com> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-12-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Refactor pause/resume codeClaudiu Beznea
Subsequent patches will add suspend/resume and cyclic DMA support to the rz-dmac driver. This support needs to work on SoCs where power to most components (including DMA) is turned off during system suspend. For this, some channels (for example cyclic ones) may need to be paused and resumed manually by the DMA driver during system suspend/resume. Refactor the pause/resume support so the same code can be reused in the system suspend/resume path. Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-11-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Use virt-dma APIs for channel descriptor processingClaudiu Beznea
The driver used a mix of virt-dma APIs and driver specific logic to process descriptors. It maintained three internal queues: ld_free, ld_queue, and ld_active as follows: - ld_free: stores the descriptors pre-allocated at probe time - ld_queue: stores descriptors after they are taken from ld_free and prepared. At the same time, vchan_tx_prep() queues them to vc->desc_allocated. The vc->desc_allocated list is then checked in rz_dmac_issue_pending() and rz_dmac_irq_handler_thread() before starting a new transfer via rz_dmac_xfer_desc(). In turn, rz_dmac_xfer_desc() grabs the next descriptor from vc->desc_issued and submits it for transfer - ld_active: stores the descriptors currently being transferred The interrupt handler moved a completed descriptor to ld_free before invoking its completion callback. Once returned to ld_free, the descriptor can be reused to prepare a new transfer. In theory, this means the descriptor could be re-prepared before its completion callback is called. Commit fully back the driver by the virt-dma APIs. With this, only ld_free need to be kept to track how many free descriptors are available. This is now done as follows: - the prepare stage removes the first descriptor from the ld_free and prepares it - the completion calls for it vc->desc_free() (rz_dmac_virt_desc_free()) which re-adds the descriptor at the end of ld_free With this, the critical areas in prepare callbacks were minimized to only getting the descriptor from the ld_free list. Introduce struct rz_dmac_chan::desc to keep track of the currently transferred descriptor. It is cleared in rz_dmac_terminate_all(), referenced from rz_dmac_issue_pending() to determine whether a new transfer can be started, and from rz_dmac_irq_handler_thread() once a descriptor has completed. Finally, the rz_dmac_device_synchronize() was updated with vchan_synchronize() call to ensure the terminated descriptor is freed and the tasklet is killed. With this, residue computation is also simplified, as it can now be handled entirely through the virt-dma APIs. The spin_lock/unlock operations from rz_dmac_irq_handler_thread() were replaced by guard as the final code after rework is simpler this way. As subsequent commits will set the Link End bit on the last descriptor of a transfer, rz_dmac_enable_hw() is also adjusted as part of the full conversion to virt-dma APIs. It no longer checks the channel enable status itself; instead, its callers verify whether the channel is enabled and whether the previous transfer has completed before starting a new one. Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-10-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Add helper to check if the channel is pausedClaudiu Beznea
Add the rz_dmac_chan_is_paused() helper to check if the channel is paused. This helper will be reused in subsequent patches. Reviewed-by: Frank Li <Frank.Li@nxp.com> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-9-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Add helper to check if the channel is enabledClaudiu Beznea
Add the rz_dmac_chan_is_enabled() helper to check if a channel is enabled. This helper will be reused in subsequent patches. Reviewed-by: Frank Li <Frank.Li@nxp.com> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-8-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Save the start LM descriptorClaudiu Beznea
Save the start LM descriptor to avoid starting from the beginning of the channel's LM descriptor list in rz_dmac_calculate_residue_bytes_in_vd(). This avoids unnecessary iterations. Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-7-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Add helper to compute the lmdesc addressClaudiu Beznea
Add a the rz_dmac_lmdesc_addr() helper function to compute the lmdesc address, to make the code easier to understand. The helper will be used in subsequent patches. Reviewed-by: Frank Li <Frank.Li@nxp.com> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-6-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Use rz_dmac_disable_hw()Claudiu Beznea
Use rz_dmac_disable_hw() instead of open coding it. This unifies the code and prepares it for the addition of suspend to RAM and cyclic DMA. The rz_dmac_disable_hw() from rz_dmac_chan_probe() was moved after vchan_init() as it initializes the channel->vc.chan.device used in rz_dmac_disable_hw(). Reviewed-by: Frank Li <Frank.Li@nxp.com> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-5-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Use list_first_entry_or_null()Claudiu Beznea
Use list_first_entry_or_null() instead of open-coding it with a list_empty() check and list_first_entry(). This simplifies the code. Reviewed-by: Frank Li <Frank.Li@nxp.com> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-4-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Fix incorrect NULL check for list_first_entry()Claudiu Beznea
list_first_entry() does not return NULL when the list is empty, making the existing NULL check invalid. Use list_first_entry_or_null() instead. Fixes: 21323b118c16 ("dmaengine: sh: rz-dmac: Add device_tx_status() callback") Cc: stable@vger.kernel.org Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-3-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04dmaengine: sh: rz-dmac: Move interrupt request after everything is set upClaudiu Beznea
Once the interrupt is requested, the interrupt handler may run immediately. Since the IRQ handler can access channel->ch_base, which is initialized only after requesting the IRQ, this may lead to invalid memory access. Likewise, the IRQ thread may access uninitialized data (the ld_free, ld_queue, and ld_active lists), which may also lead to issues. Request the interrupts only after everything is set up. To keep the error path simpler, use dmam_alloc_coherent() instead of dma_alloc_coherent(). Fixes: 5000d37042a6 ("dmaengine: sh: Add DMAC driver for RZ/G2L SoC") Cc: stable@vger.kernel.org Reviewed-by: Frank Li <Frank.Li@nxp.com> Tested-by: John Madieu <john.madieu.xa@bp.renesas.com> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com> Tested-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com> Link: https://patch.msgid.link/20260526084710.3491480-2-claudiu.beznea@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2026-06-04ALSA: usb-audio: Add iface reset and delay quirk for AB13X USB AudioLianqin Hu
Setting up the interface when suspended/resumeing fail on this card. Adding a reset and delay quirk will eliminate this problem. usb 1-1: new full-speed USB device number 2 using xhci-hcd usb 1-1: New USB device found, idVendor=3c20, idProduct=3d21 usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: AB13X USB Audio usb 1-1: Manufacturer: Generic usb 1-1: SerialNumber: 20210726905926 Signed-off-by: Lianqin Hu <hulianqin@vivo.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://patch.msgid.link/TYUPR06MB62174610061C213260E1A992D2102@TYUPR06MB6217.apcprd06.prod.outlook.com
2026-06-04ALSA: usb: qcom: Drop unused variablesTakashi Iwai
Forgot to clean up the unused variables after the code refactoring, which leads to compile warnings. Reported-by: Mark Brown <broonie@kernel.org> Closes: https://lore.kernel.org/aiGUoChmVKE-xwvC@sirena.org.uk Fixes: f1f16e1809c8 ("ALSA: usb-audio: qcom: Use PAGE_ALIGN macro for buffer size calculation") Link: https://patch.msgid.link/20260604151927.1227105-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-06-04ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streamsJi'an Zhou
snd_pcm_drain() uses init_waitqueue_entry which does not clear entry.prev/next, and add_wait_queue with a conditional remove_wait_queue that is skipped when to_check is no longer in the group after concurrent UNLINK. The orphaned wait entry remains on the unlinked substream sleep queue. On the next drain iteration, add_wait_queue adds the entry to a new queue while still linked on the old one, corrupting both lists. A subsequent wake_up dereferences NULL at the func pointer (mapped from the spinlock at offset 0 of the misinterpreted wait_queue_head_t), causing a kernel panic. Replace init_waitqueue_entry/add_wait_queue/conditional remove_wait_queue with init_wait_entry/prepare_to_wait/ finish_wait. init_wait_entry clears prev/next via INIT_LIST_HEAD on each iteration and sets autoremove_wake_function which auto-removes the entry on wake-up. finish_wait safely handles both the already-removed and still-queued cases. Fixes: 9b1dbd69ba6f ("ALSA: pcm: fix use-after-free on linked stream runtime in snd_pcm_drain") Signed-off-by: Ji'an Zhou <eilaimemedsnaimel@gmail.com> Link: https://patch.msgid.link/20260604142559.3840881-1-eilaimemedsnaimel@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-06-04Merge tag 'asoc-fix-v7.1-rc6' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v7.1 There's only one actual fix here, for the TDM configuration on the Freescale SAI controller, everytihng else is DMI quirks for AMD systems. One of those is relatively large as it adds a bunch of different structs but it's all data.
2026-06-04PCI: qcom: Initialize DWC MSI lock for firmware-managed ECAM hostsYadu M G
A lockdep warning is observed during boot on a Qcom firmware-managed platform: INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. ... Call trace: register_lock_class+0x128/0x4d8 __lock_acquire+0x110/0x1db0 lock_acquire+0x278/0x3d8 _raw_spin_lock_irq+0x6c/0xc0 dw_pcie_irq_domain_alloc+0x48/0x190 irq_domain_alloc_irqs_parent+0x2c/0x48 msi_domain_alloc+0x90/0x160 ... dw_pcie_irq_domain_alloc() takes pp->lock while allocating MSI interrupts. pp->lock is normally initialized by dw_pcie_host_init(), but Qcom firmware-managed hosts use the ECAM init path instead: pci_host_common_ecam_create() pci_ecam_create() qcom_pcie_ecam_host_init() dw_pcie_msi_host_init() dw_pcie_allocate_domains() That path constructs a fresh struct dw_pcie_rp and calls dw_pcie_msi_host_init() directly, without going through dw_pcie_host_init(). As a result, pp->lock was not initialized, which triggers the warning. Initialize pp->lock in qcom_pcie_ecam_host_init() before registering the MSI domains so the firmware-managed ECAM path matches the normal DWC host initialization sequence. Fixes: 7d944c0f1469 ("PCI: qcom: Add support for Qualcomm SA8255p based PCIe Root Complex") Signed-off-by: Yadu M G <yadu.mg@oss.qualcomm.com> [mani: added fixes tag and CCed stable] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Cc: stable@kernel.org Link: https://patch.msgid.link/20260604122418.727274-1-yadu.mg@oss.qualcomm.com
2026-06-04verification/rvgen: Fix ltl2k writing True as a literalGabriele Monaco
The rvgen parser for LTL stores literal true values in the python representation (capitalised True), this doesn't build in C. The Literal class should already handle this case but ASTNode skips its strigification method and converts the value (true/false) directly. Fix by delegating ASTNode stringification to the Literal and Variable classes instead of bypassing them. Fixes: 97ffa4ce6ab32 ("verification/rvgen: Add support for linear temporal logic") Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/r/20260514152055.229162-8-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
2026-06-04verification/rvgen: Fix options shared among commandsGabriele Monaco
After rvgen was refactored to use subparsers, the common options (-a and -D) were left in the main parser. This meant that they needed to be called /before/ the subcommand and using them without subcommand was allowed. This is not the original intent. rvgen -D "some description" container -n name Define the options as parent in the subparsers to allow them to be used from both subcommands together with other options. rvgen container -n name -D "some description" Fixes: 5270a0e3041c ("verification/dot2k: Replace is_container() hack with subparsers") Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/r/20260514152055.229162-7-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
2026-06-04verification/rvgen: Fix suffix strip in dot2kGabriele Monaco
__start_to_invariant_check() and __get_constraint_env() parse the environment variable's name from sources that have it padded with the monitor name. This is removed using rstrip(), which is not meant to strip a substring but rather a set of characters. Use removesuffix() to actually get rid of the trailing _<monitor name>. Fixes: a82adadb16894 ("verification/rvgen: Add support for Hybrid Automata") Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/r/20260601153840.124372-12-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
2026-06-04tools/rv: Fix cleanup after failed trace setupGabriele Monaco
Currently if ikm_setup_trace_instance() fails, the tool returns without any cleanup, if rv was called with both -t and -r, this means the reactor is not going to be cleared. Jump to the cleanup label to restore the reactor if necessary. Fixes: 6d60f89691fc9 ("tools/rv: Add in-kernel monitor interface") Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/r/20260514152055.229162-5-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
2026-06-04tools/rv: Fix substring match when listing container monitorsGabriele Monaco
When listing monitors within a specific container (rv list <container>), the tool incorrectly matched monitors if the requested container name was only a prefix of the actual container (e.g., 'rv list sche' would incorrectly list monitors from 'sched:'). Fix this by ensuring the container name is an exact match and is immediately followed by the ':' separator. Fixes: eba321a16fc6 ("tools/rv: Add support for nested monitors") Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/r/20260514152055.229162-3-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
2026-06-04tools/rv: Fix substring match bug in monitor name searchGabriele Monaco
__ikm_find_monitor_name() relies on strstr() to find a monitor by name, which fails if the target monitor is a substring of a previously listed monitor. Fix it by tokenizing the available_monitors file and matching full tokens instead. Fixes: eba321a16fc6 ("tools/rv: Add support for nested monitors") Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/r/20260514152055.229162-2-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
2026-06-04tools/rv: Ensure monitor name and desc are NUL-terminatedGabriele Monaco
ikm_fill_monitor_definition() copies monitor name and description with strncpy(), but does not guarantee NUL termination when source strings are equal to or longer than the destination buffers. Clamp copies to sizeof(dst) - 1 and explicitly append '\0' for both fields to keep them safe for later string operations. Suggested-by: unknownbbqrx <dev@unknownbbqr.xyz> Fixes: 6d60f89691fc9 ("tools/rv: Add in-kernel monitor interface") Link: https://lore.kernel.org/r/20260604120946.90302-2-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
2026-06-04perf test: Remove /usr/bin/cc dependency from Intel PT shell testIan Rogers
In test_intel_pt.sh, the test script compiled two external C programs at runtime using /usr/bin/cc (a thread loop workload and a JIT self- modifying workload). Relying on external C compilers inside shell tests frequently causes failures in continuous integration environments. Create a built-in 'jitdump' workload and switch test_intel_pt.sh to use 'perf test -w thloop' and 'perf test -w jitdump'. Also add multi- architecture compatibility without external C compiler dependencies, the workload instruction arrays dynamically encode CHK_BYTE into opcodes across x86, ARM32, ARM64, RISC-V, PowerPC, MIPS, LoongArch, and s390x. Some minor include fixes for util/jitdump.h. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Add shell test to validate JUnit XML reporting outputIan Rogers
Add a shell test script (test_test_junit_output.sh) to execute perf test with the -j/--junit option and validate that the generated test report complies perfectly with standard XML formatting using Python's ElementTree XML parser. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04power: supply: Add support for Surface RT battery and chargerJonas Schwöbel
Add support for Embedded Controller found in the Microsoft Surface RT and used to monitor battery cell and charger input status and properties. Controller works both for UEFI and APX booting. [wmjb: added POWER_SUPPLY_PROP_CHARGE_NOW support] Signed-off-by: Jethro Bull <jethrob@hotmail.com> Signed-off-by: Jonas Schwöbel <jonasschwoebel@yahoo.de> Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Link: https://patch.msgid.link/20260507134608.76222-3-clamor95@gmail.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2026-06-04dt-bindings: embedded-controller: Document Surface RT ECSvyatoslav Ryhel
Document Embedded Controller used in Microsoft Surface RT tablets for monitoring battery properties and charger status. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260507134608.76222-2-clamor95@gmail.com Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2026-06-04perf test: Add -j/--junit option for JUnit XML test reportsIan Rogers
Add a -j/--junit command line option to generate standard JUnit XML format test reports. The generated file defaults to 'test.xml' if no filename is specified, but allows users to override the path (e.g. -jmytest.xml). The XML report captures individual test suite and subtest execution latency, alongside XML-escaped failure logs and skip reasons, while preserving the full multi-process concurrency speed of parallel test execution. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20260602174129.3192312-15-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Split monolithic 'util' test suite into sub-testsIan Rogers
Refactor the monolithic 'util' test suite into distinct 'String replacement' and 'BLAKE2s hash' sub-tests using the struct test_case framework. This improves test reporting granularity and is used in a subsequent perf test for JUnit XML test result reporting. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Skip shebang and SPDX comments in shell test descriptionsIan Rogers
When extracting shell test descriptions in tests-scripts.c, the parser skipped the first line assuming it was the shebang (#!/bin/sh) and then read the first comment line on line 2 as the test description. However, checkpatch.pl expects shell scripts to declare their SPDX license identifier on line 2 (# SPDX-License-Identifier: ...). This caused the test harness to extract the SPDX license string as the test description. Refactor shell_test__description to use io__getline, skipping both shebang and SPDX comment lines. This allows shell tests to include standard SPDX headers without breaking test suite description extraction. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Fix subtest status alignment for multi-digit indexesIan Rogers
When running perf test, the status column (: Ok) became misaligned when subtest indexes reached 2 or 3 digits (e.g. 9.100 vs 9.9 vs 10.1). This occurred because the subtest description field width (subw) was statically fixed to width - 2, assuming all subtest index prefixes were exactly 7 characters wide. Dynamically calculate subw based on the exact character length of the test suite and subtest index prefix. This ensures the status column is perfectly aligned vertically across all test outputs regardless of subtest index digit count. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Add summary reportingIan Rogers
Currently, when running test suites (perf test), users must scroll through hundreds of lines of console output to manually tally the number of passed, skipped, or failed test cases. Introduce an automated, global execution summary printed at the absolute tail of the test run: 1. Track counts mid-flight inside the print_test_result() accumulator, clearly separating pass counts into standalone main tests vs. individual subtests (where num_test_cases > 1). 2. Accumulate the precise descriptions of all failed test cases directly into a global string buffer, formatted with their suite indices (e.g., 3.1: Parse event definition strings) for effortless cross-referencing. 3. Define a summary printer function print_tests_summary() that emits a colored outline of the final pass, skip, and fail totals, followed by the explicit list of failed tests. 4. Invoke the summary printer right before freeing the test array at the absolute tail of __cmd_test(), guaranteeing that the summary is successfully printed even if an internal emergency signal cleanup occurs or if the user interrupts the run early. Example output: ``` $ sudo perf test -v 1: vmlinux symtab matches kallsyms : Skip 2: Detect openat syscall event : Ok 3: Detect openat syscall event on all cpus : Ok ... 163: perf trace summary : Ok === Test Summary === Passed main tests : 123 Passed subtests : 145 Skipped tests : 22 Failed tests : 6 List of failed tests: 92: perf kvm tests 95: kernel lock contention analysis test 120: perf metrics value validation 124: Check branch stack sampling 143: perftool-testsuite_probe 158: test Intel TPEBS counting mode ``` Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04drm/v3d: Fix global performance monitor reference countingMaíra Canal
In the SET_GLOBAL ioctl, v3d_perfmon_find() bumps the reference count on the perfmon it returns, but v3d_perfmon_set_global_ioctl() and v3d_perfmon_delete() fail to release that reference on several paths: 1. v3d_perfmon_set_global_ioctl() leaks the reference on its error paths. 2. CLEAR_GLOBAL leaks both the find reference and the reference previously stashed in v3d->global_perfmon by the SET_GLOBAL ioctl that configured it. 3. Destroying a perfmon that is the current global perfmon leaks the reference stashed by the SET_GLOBAL ioctl. Release each of these references explicitly. Cc: stable@vger.kernel.org Fixes: c6eabbab359c ("drm/v3d: Add DRM_IOCTL_V3D_PERFMON_SET_GLOBAL") Reviewed-by: Iago Toral Quiroga <itoral@igalia.com> Link: https://patch.msgid.link/20260531-v3d-perfmon-lifetime-v2-1-60ed4485a203@igalia.com Signed-off-by: Maíra Canal <mcanal@igalia.com>
2026-06-04perf test: Show snippet failure output for verbose=1Ian Rogers
Currently, when running tests in verbose mode (-v), if a test case fails, the entire raw standard error buffer is dumped to stderr via fprintf(stderr, "%s", child->err_output.buf). For tests that generate massive amounts of debugging or logging output before dying, this results in multi-page terminal dumps where highly critical diagnostic keywords (error, fail, segv) are easily lost. Implement a smart, bounded snippet string processor to improve failure triaging: 1. Introduce a configurable quota limit static unsigned int failure_snippet_lines = 10; accessible via a new command-line option --failure-snippet-lines <N>. 2. Parse the raw error buffer dynamically into lines and run a three-pass extraction algorithm: - Pass 0: Always select the very first line of the log as an initial outline marker. - Pass 1: Scan forward from the top of the log to pick up to N lines that contain case-insensitive failure keywords (error, fail, segv, abort) to isolate the root cause. Automatically pull in the immediate subsequent line as highly-prioritized context. Allow adjacent matching lines to overlap without dropping context by evaluating keywords for all lines (e.g. when "Failed to report" is followed by "Error:"). - Pass 2: If quota remains, scan backward from the absolute tail of the log to capture trailing crash or abort context. 3. Output the selected lines in their original chronological order, inserting a clear ... separator between non-contiguous line jumps. 4. Wrap matched failure keywords dynamically in bold red (PERF_COLOR_RED) to immediately draw the eye to failures. 5. Invoke the smart processor purely when verbose == 1 && ret == TEST_FAIL in both finish_test and finish_tests_parallel, leaving raw full-output dumping completely untouched when running highly verbose (-vv). Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Refactor parallel poll loop to drain all pipes simultaneouslyIan Rogers
When running tests in parallel with verbose output (-v), child processes write to pipes. If a test produces significant output (e.g. Granite Rapids metric parsing printing hundreds of lines), it fills the 64KB pipe buffer and blocks. Previously, the parent harness (finish_test) only polled the pipe of the current test waiting to be printed. Other children blocked indefinitely until the parent reached them, severely sequentializing execution. Address this by implementing finish_tests_parallel() to poll and drain output pipes from all running children simultaneously into per-child buffers, employing safe strbuf_addstr string operations alongside thorough variable orderings for strict ISO C90 compliance. Reaping occurs out of order as children finish, while final result printing remains strictly in order. This drops parallel verbose execution time for the PMU events suite from ~35 seconds down to ~5.9 seconds. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04tools subcmd: Robust fallback and existence checks for process reapingIan Rogers
Update check_if_command_finished() and wait_or_whine() to handle invalid PIDs gracefully (<= 0) by setting cmd->finished = 1 and returning early. This avoids executing waitpid(-1, ...) or waitpid(0, ...) downstream, which can block or reap parallel tests' exit status causing state corruption. Introduce a fallback mechanism in check_if_command_finished() using waitpid(..., WNOHANG) when /proc/<pid>/status is inaccessible (e.g. due to EMFILE/ENFILE) to safely check and reap finished children. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test pmu-events: A sub-test per metric tableIan Rogers
Break apart the slow "Parsing of PMU event table metrics" tests into one pair of tests (real and fake PMU) per metric table found, storing the specific table pointer in priv data. Implement setup_pmu_events_suite() to dynamically allocate and populate these test cases. Split static parser tests out into a separate test__parsing_fake_static() test case. Update test__parsing() and test__parsing_fake() to retrieve the specific table from priv data and test only that table, maintaining fallback compatibility if priv is NULL. Running these individual tests in parallel significantly reduces overall test execution time. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Support dynamic test suites with setup callback and private dataIan Rogers
Add void *priv to struct test_case to allow passing per-test context. Add int (*setup)(struct test_suite *) to struct test_suite to allow dynamic generation of test cases. Update build_suites() to invoke the setup callback for each suite if present, ensuring dynamic cases are available before listing or running. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf test: Drain pipe after child finishes to avoid losing outputIan Rogers
When running tests in parallel, the parent process reads output from the child's pipe. However, it might exit the loop as soon as the child is detected as finished, potentially missing data that arrived in the pipe just after the last poll or before the loop terminated. Address this by draining the pipe after the main loop in finish_test. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-04perf pmu-events: Add API to get metric table name and iterate tablesIan Rogers
Add name field to struct pmu_metrics_table and populate it in generated tables. Add pmu_metrics_table__name() to retrieve the name. Add pmu_metrics_table__for_each_table() to iterate over all known metric tables. This will be used to break apart slow metric tests per table. Assisted-by: Gemini-CLI:Google Gemini 3 Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>