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2026-04-10vfio: remove dead notifier codePaolo Bonzini
group->notifier is dead code. VFIO initializes it and checks it for emptiness on teardown, but nobody ever registers on it or triggers it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Anthony Krowiak <akrowiak@linux.ibm.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20260407175934.1602711-1-pbonzini@redhat.com Signed-off-by: Alex Williamson <alex@shazbot.org>
2026-04-10Merge branch 'for-7.1/cxl-misc' into cxl-for-nextDave Jiang
cxl/hdm: Add support for 32 switch decoders
2026-04-10mtd: spinand: winbond: Declare the QE bit on W25NxxJWMiquel Raynal
Factory default for this bit is "set" (at least on the chips I have), but we must make sure it is actually set by Linux explicitly, as the bit is writable by an earlier stage. Fixes: 6a804fb72de5 ("mtd: spinand: winbond: add support for serial NAND flash") Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-04-10wifi: ath12k: avoid dynamic alloc when parsing wmi tbNicolas Escande
On each WMI message received from the hardware, we alloc a temporary array of WMI_TAG_MAX entries of type void *. This array is then populated with pointers of parsed structs depending on the WMI type, and then freed. This alloc can fail when memory pressure in the system is high enough. Given the fact that it is scheduled in softirq with the system_bh_wq, we should not be able to parse more than one WMI message per CPU at any time. So instead lets move to a per cpu allocated array, that is reused across calls. This memory is allocated as needed and refcounted to exist only as long as one struct ath12k_base lives. ath12k_wmi_tlv_parse_alloc() and ath12k_wmi_tlv_parse() are merged together as it no longer allocs mem but returns the existing per-cpu one. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00218-QCAHKSWPL_SILICONZ-1 Signed-off-by: Nicolas Escande <nico.escande@gmail.com> Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com> Reviewed-by: Rameshkumar Sundaram <rameshkumar.sundaram@oss.qualcomm.com> Link: https://patch.msgid.link/20260407095426.3285574-1-nico.escande@gmail.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
2026-04-10efi/capsule-loader: fix incorrect sizeof in phys array reallocationThomas Huth
The krealloc() call for cap_info->phys in __efi_capsule_setup_info() uses sizeof(phys_addr_t *) instead of sizeof(phys_addr_t), which might be causing an undersized allocation. The allocation is also inconsistent with the initial array allocation in efi_capsule_open() that allocates one entry with sizeof(phys_addr_t), and the efi_capsule_write() function that stores phys_addr_t values (not pointers) via page_to_phys(). On 64-bit systems where sizeof(phys_addr_t) == sizeof(phys_addr_t *), this goes unnoticed. On 32-bit systems with PAE where phys_addr_t is 64-bit but pointers are 32-bit, this allocates half the required space, which might lead to a heap buffer overflow when storing physical addresses. This is similar to the bug fixed in commit fccfa646ef36 ("efi/capsule-loader: fix incorrect allocation size") which fixed the same issue at the initial allocation site. Fixes: f24c4d478013 ("efi/capsule-loader: Reinstate virtual capsule mapping") Assisted-by: Claude:claude-sonnet-4-5 Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2026-04-10Merge tag 'vfs-7.0-rc8.fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: "The kernfs rbtree is keyed by (hash, ns, name) where the hash is seeded with the raw namespace pointer via init_name_hash(ns). The resulting hash values are exposed to userspace through readdir seek positions, and the pointer-based ordering in kernfs_name_compare() is observable through entry order. Switch from raw pointers to ns_common::ns_id for both hashing and comparison. A preparatory commit first replaces all const void * namespace parameters with const struct ns_common * throughout kernfs, sysfs, and kobject so the code can access ns->ns_id. Also compare the ns_id when hashes match in the rbtree to handle crafted collisions. Also fix eventpoll RCU grace period issue and a cachefiles refcount problem" * tag 'vfs-7.0-rc8.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: kernfs: make directory seek namespace-aware kernfs: use namespace id instead of pointer for hashing and comparison kernfs: pass struct ns_common instead of const void * for namespace tags eventpoll: defer struct eventpoll free to RCU grace period cachefiles: fix incorrect dentry refcount in cachefiles_cull()
2026-04-10hwmon: (powerz) Avoid cacheline sharing for DMA bufferThomas Weißschuh
Depending on the architecture the transfer buffer may share a cacheline with the following mutex. As the buffer may be used for DMA, that is problematic. Use the high-level DMA helpers to make sure that cacheline sharing can not happen. Also drop the comment, as the helpers are documentation enough. https://sashiko.dev/#/message/20260408175814.934BFC19421%40smtp.kernel.org Fixes: 4381a36abdf1c ("hwmon: add POWER-Z driver") Cc: stable@vger.kernel.org # ca085faabb42: dma-mapping: add __dma_from_device_group_begin()/end() Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Link: https://lore.kernel.org/r/20260408-powerz-cacheline-alias-v1-1-1254891be0dd@weissschuh.net Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-04-10Merge tag 'gpio-fixes-for-v7.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - gracefully handle missing regmap in gpio-bd72720 - fix IRQ resource release in gpio-tegra - return -ENOMEM on devm_kzalloc() failure instead of -ENODEV in gpio-tegra * tag 'gpio-fixes-for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: tegra: return -ENOMEM on allocation failure in probe gpio: tegra: fix irq_release_resources calling enable instead of disable gpio: bd72720: handle missing regmap
2026-04-10cxl/hdm: Add support for 32 switch decodersLi Ming
Per CXL r4.0 section 8.2.4.20.1. CXL host bridge and switch ports can support 32 HDM decoders. Current implementation misses some decoders on CXL host bridge and switch in the case that the value of Decoder Count field in CXL HDM decoder Capability Register is greater than or equal to 9. Update calculation implementation to ensure the decoder count calculation is correct for CXL host bridge/switch ports. Signed-off-by: Li Ming <ming.li@zohomail.com> Reviewed-by: Gregory Price <gourry@gourry.net> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Link: https://patch.msgid.link/20260321061459.1910205-1-ming.li@zohomail.com Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2026-04-10hwmon: (isl28022) Fix integer overflow in power calculation on 32-bitSanman Pradhan
isl28022_read_power() computes: *val = ((51200000L * ((long)data->gain)) / (long)data->shunt) * (long)regval; On 32-bit platforms, 'long' is 32 bits. With gain=8 and shunt=10000 (the default configuration): (51200000 * 8) / 10000 = 40960 40960 * 65535 = 2,684,313,600 This exceeds LONG_MAX (2,147,483,647), resulting in signed integer overflow. Additionally, dividing before multiplying by regval loses precision unnecessarily. Use u64 arithmetic with div_u64() and multiply before dividing to retain precision. The intermediate product cannot overflow u64 (worst case: 51200000 * 8 * 65535 = 26843136000000). Power is inherently non-negative, so unsigned types are the natural fit. Cap the result to LONG_MAX before returning it through the hwmon callback. Fixes: 39671a14df4f2 ("hwmon: (isl28022) new driver for ISL28022 power monitor") Cc: stable@vger.kernel.org Signed-off-by: Sanman Pradhan <psanman@juniper.net> Link: https://lore.kernel.org/r/20260410002613.424557-1-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-04-10hwmon: (pt5161l) Fix bugs in pt5161l_read_block_data()Sanman Pradhan
Fix two bugs in pt5161l_read_block_data(): 1. Buffer overrun: The local buffer rbuf is declared as u8 rbuf[24], but i2c_smbus_read_block_data() can return up to I2C_SMBUS_BLOCK_MAX (32) bytes. The i2c-core copies the data into the caller's buffer before the return value can be checked, so the post-read length validation does not prevent a stack overrun if a device returns more than 24 bytes. Resize the buffer to I2C_SMBUS_BLOCK_MAX. 2. Unexpected positive return on length mismatch: When all three retries are exhausted because the device returns data with an unexpected length, i2c_smbus_read_block_data() returns a positive byte count. The function returns this directly, and callers treat any non-negative return as success, processing stale or incomplete buffer contents. Return -EIO when retries are exhausted with a positive return value, preserving the negative error code on I2C failure. Fixes: 1b2ca93cd0592 ("hwmon: Add driver for Astera Labs PT5161L retimer") Cc: stable@vger.kernel.org Signed-off-by: Sanman Pradhan <psanman@juniper.net> Link: https://lore.kernel.org/r/20260410002549.424162-1-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-04-10hwmon: (powerz) Fix missing usb_kill_urb() on signal interruptSanman Pradhan
wait_for_completion_interruptible_timeout() returns -ERESTARTSYS when interrupted. This needs to abort the URB and return an error. No data has been received from the device so any reads from the transfer buffer are invalid. The original code tests !ret, which only catches the timeout case (0). On signal delivery (-ERESTARTSYS), !ret is false so the function skips usb_kill_urb() and falls through to read from the unfilled transfer buffer. Fix by capturing the return value into a long (matching the function return type) and handling signal (negative) and timeout (zero) cases with separate checks that both call usb_kill_urb() before returning. Fixes: 4381a36abdf1c ("hwmon: add POWER-Z driver") Cc: stable@vger.kernel.org Signed-off-by: Sanman Pradhan <psanman@juniper.net> Link: https://lore.kernel.org/r/20260410002521.422645-3-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-04-10hwmon: (powerz) Fix use-after-free on USB disconnectSanman Pradhan
After powerz_disconnect() frees the URB and releases the mutex, a subsequent powerz_read() call can acquire the mutex and call powerz_read_data(), which dereferences the freed URB pointer. Fix by: - Setting priv->urb to NULL in powerz_disconnect() so that powerz_read_data() can detect the disconnected state. - Adding a !priv->urb check at the start of powerz_read_data() to return -ENODEV on a disconnected device. - Moving usb_set_intfdata() before hwmon registration so the disconnect handler can always find the priv pointer. Fixes: 4381a36abdf1c ("hwmon: add POWER-Z driver") Cc: stable@vger.kernel.org Signed-off-by: Sanman Pradhan <psanman@juniper.net> Link: https://lore.kernel.org/r/20260410002521.422645-2-sanman.pradhan@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-04-10Merge tag 'pinctrl-v7.0-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: "Some late pin control fixes. I'm not happy to have bugs so late in the kernel cycle, but they are all driver specifics so I guess it's how it is. - Three fixes for the Intel pin control driver fixing the feature set for the new silicon - One fix for an IRQ storm in the MCP23S08 pin controller/GPIO expander" * tag 'pinctrl-v7.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: mcp23s08: Disable all pin interrupts during probe pinctrl: intel: Enable 3-bit PAD_OWN feature pinctrl: intel: Fix the revision for new features (1kOhm PD, HW debouncer) pinctrl: intel: Improve capability support
2026-04-10hwmon: pmbus: Add support for Sony APS-379Chris Packham
Add pmbus support for Sony APS-379 power supplies. There are a few PMBUS commands that return data that is undocumented/invalid so these need to be rejected with -ENXIO. The READ_VOUT command returns data in linear11 format instead of linear16 so we need to workaround this. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Link: https://lore.kernel.org/r/20260410012414.2818829-3-chris.packham@alliedtelesis.co.nz [groeck: Dropped empty line from documentation; added module name to Kconfig] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2026-04-10HID: logitech-dj: fix wrong detection of bad DJ_SHORT output reportBenjamin Tissoires
commit b6a57912854e ("HID: logitech-dj: Prevent REPORT_ID_DJ_SHORT related user initiated OOB write") assumed that all HID devices attached to the logitech-dj driver was having an output report of DJ_SHORT. However, on the receiver itself, we have 2 other HID device we attach here: the mouse emulation and the keyboard emulation. For those devices the value of rep is NULL and we are triggered a segfault here. This is doubly required because logitech-dj also handles non DJ devices that might not have the DJ collection. Fixes: b6a57912854e ("HID: logitech-dj: Prevent REPORT_ID_DJ_SHORT related user initiated OOB write") Signed-off-by: Benjamin Tissoires <bentiss@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2026-04-10fbdev: udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFOGreg Kroah-Hartman
Much like commit 19f953e74356 ("fbdev: fb_pm2fb: Avoid potential divide by zero error"), we also need to prevent that same crash from happening in the udlfb driver as it uses pixclock directly when dividing, which will crash. Cc: Bernie Thompson <bernie@plugable.com> Cc: Helge Deller <deller@gmx.de> Fixes: 59277b679f8b ("Staging: udlfb: add dynamic modeset support") Assisted-by: gregkh_clanker_t1000 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-10fbdev: tdfxfb: avoid divide-by-zero on FBIOPUT_VSCREENINFOGreg Kroah-Hartman
Much like commit 19f953e74356 ("fbdev: fb_pm2fb: Avoid potential divide by zero error"), we also need to prevent that same crash from happening in the udlfb driver as it uses pixclock directly when dividing, which will crash. Cc: Helge Deller <deller@gmx.de> Assisted-by: gregkh_clanker_t1000 Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-04-10Bluetooth: qca: enable pwrseq support for WCN39xx devicesDmitry Baryshkov
The WCN39xx family of WiFi/BT chips incorporates a simple PMU, spreading voltages over internal rails. Implement support for using powersequencer for this family of QCA devices in addition to using regulators. Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel_pci: Fix btintel_pcie_read_hwexp code styleLuiz Augusto von Dentz
Use proper alignment for break under a switch. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel_pcie: Add device id of Scorpious2, Nova Lake-PCD-SKiran K
sudo lspci -v -k -d 8086:6e74 80:14.7 Bluetooth: Intel Corporation Device 6e74 (rev 10) Subsystem: Intel Corporation Device 0011 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at 200002a8000 (64-bit, non-prefetchable) [size=16K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [40] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [80] MSI-X: Enable+ Count=32 Masked- Capabilities: [100] Latency Tolerance Reporting Kernel driver in use: btintel_pcie Kernel modules: btintel_pcie Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel_pcie: Add device id of Scorpius Peak2, Nova Lake-PCD-HKiran K
sudo lspci -v -k -d 8086:d346 00:14.7 Bluetooth: Intel Corporation Device d346 Subsystem: Intel Corporation Device 0011 Flags: bus master, fast devsel, latency 0, IRQ 16, IOMMU group 14 Memory at b018378000 (64-bit, non-prefetchable) [size=16K] Capabilities: [c8] Power Management version 3 Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [40] Express Root Complex Integrated Endpoint, MSI 00 Capabilities: [80] MSI-X: Enable+ Count=32 Masked- Capabilities: [100] Latency Tolerance Reporting Kernel driver in use: btintel_pcie Kernel modules: btintel_pcie Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel_pcie: Add support for exception dump for ScP2FKiran K
Add device coredump support for Scorpious Peak2F product. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel: Add support for Scorpious Peak2F supportKiran K
Add support for Intel Bluetooth Scorpious Peak2F core. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel_pcie: Add support for exception dump for ScP2Kiran K
Add device coredump support for Scorpious Peak2 product. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel: Add DSBR support for ScP2 onwardsKiran K
Add DSBR support for Scorpious Peak2 cores onwards. Refer commit eb9e749c0182 ("Bluetooth: btintel: Allow configuring drive strength of BRI") for details about DSBR. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel: Add support for Scorpious Peak2 supportKiran K
Add support for Intel Bluetooth Scorpious Peak2 core. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel: Replace CNVi id with hardware variantKiran K
Use hardware variant instead of CNVi to send dsbr command. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel: Add support for hybrid signature for ScP2 onwardsKiran K
If FW image has hybrid signature (ECDSA and LMS) then send CSS header, ECDSA public key, ECDSA signature, LMS public key, LMS signature and command buffer to device. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btmtk: add MT7902 SDIO supportSean Wang
Add MT7902 Bluetooth SDIO support by introducing chip data and registering the device ID. Runtime PM is not yet supported by the driver, but normal operation is unaffected. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btusb: Add new VID/PID 0e8d/1ede for MT7902Sean Wang
Add VID 0e8d & PID 1ede for MediaTek MT7902 USB Bluetooth chip. The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below. T: Bus=01 Lev=01 Prnt=01 Port=05 Cnt=02 Dev#= 4 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0e8d ProdID=1ede Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I:* If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us Co-developed-by: Bitterblue Smith <rtl8821cerfe2@gmail.com> Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btusb: Add new VID/PID 13d3/3596 for MT7902Sean Wang
Add VID 13d3 & PID 3596 for MediaTek MT7902 USB Bluetooth chip. The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below. T: Bus=07 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3596 Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I: If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us Co-developed-by: Kush Kulshrestha <kush.kulshrestha.5@gmail.com> Signed-off-by: Kush Kulshrestha <kush.kulshrestha.5@gmail.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btusb: Add new VID/PID 13d3/3594 for MT7902Sean Wang
Add VID 13d3 & PID 3594 for MediaTek MT7902 USB Bluetooth chip. The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below. T: Bus=03 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 3 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3594 Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I: If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us Co-developed-by: Kush Kulshrestha <kush.kulshrestha.5@gmail.com> Signed-off-by: Kush Kulshrestha <kush.kulshrestha.5@gmail.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btusb: Add new VID/PID 13d3/3580 for MT7902Sean Wang
Add VID 13d3 & PID 3580 for MediaTek MT7902 USB Bluetooth chip. The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below. T: Bus=03 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3580 Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I:* If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us Co-developed-by: Kush Kulshrestha <kush.kulshrestha.5@gmail.com> Signed-off-by: Kush Kulshrestha <kush.kulshrestha.5@gmail.com> Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btusb: Add new VID/PID 13d3/3579 for MT7902Sean Wang
Add VID 13d3 & PID 3579 for MediaTek MT7902 USB Bluetooth chip. The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below. T: Bus=01 Lev=01 Prnt=01 Port=09 Cnt=04 Dev#= 7 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3579 Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I:* If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btmtk: add MT7902 MCU supportSean Wang
Add MT7902 device ID and firmware filename to enable MCU firmware loading. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel_pcie: Use struct_size to improve hci_drv_read_infoThorsten Blum
Use struct_size(), which provides additional compile-time checks for structures with flexible array members (e.g., __must_be_array()), to determine the allocation size for a new 'struct hci_drv_rp_read_info'. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btusb: Add Lite-On 04ca:3807 for MediaTek MT7921Dylan Eray
Add USB device ID (04ca:3807) for a Lite-On Wireless_Device containing a MediaTek MT7921 (MT7920) Bluetooth chipset found in Acer laptops. Without this entry, btusb binds via the generic USB class-based wildcard match but never sets the BTUSB_MEDIATEK flag. This means btmtk never triggers firmware loading, and the driver sends a raw HCI Reset that the uninitialized chip cannot respond to, resulting in: Bluetooth: hci0: Opcode 0x0c03 failed: -110 The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below: T: Bus=03 Lev=01 Prnt=01 Port=09 Cnt=01 Dev#=5 Spd=480 MxCh=0 P: Vendor=04ca ProdID=3807 Rev=1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C: #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=(none) Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Dylan Eray <dylan.eray6@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btintel_pcie: Replace snprintf("%s") with strscpyThorsten Blum
Replace snprintf("%s", ...) with the faster and more direct strscpy(). Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: hci_qca: Fix BT not getting powered-off on rmmodHans de Goede
The BT core skips calling the hci_dev's shutdown method when the HCI is unregistered. This means that qca_power_off() was not getting called leaving BT powered on. This causes regulators / pwrseq providers to not get disabled which also causes problem when re-loading the module because regulators and pwrseq providers have an enablecount which now has never dropped to 0, causing the BT to not get properly reset between rmmod and re-load which causes initialization failure on the re-load. Fix this by calling qca_power_off() from qca_close() when BT has not already been powered off through a qca_hci_shutdown() call. hci_ldisc.c will call qca_close() after freeing the hdev, so this means that qca_power_off() can now no longer deref hu->hdev, change the logging in qca_power_off() to no longer use hu->hdev. Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: hci_qca: Fix confusing shutdown() and power_off() namingHans de Goede
The function called qca_power_off() is actually the hci_dev shutdown handler, rename it to qca_hci_shutdown() to make this clear. While the qca_power_shutdown() function is actually the counter-part of qca_power_on() rename it to qca_power_off() to make this clear. Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btbcm: Add entry for BCM4343A2 UART BluetoothMarek Vasut
This patch adds the device ID for the BCM4343A2 module, found e.g. in the muRata 1YN WiFi+BT combined device. The required firmware file is named 'BCM4343A2.hcd'. Signed-off-by: Marek Vasut <marex@nabladev.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: qca: Refactor code on the basis of chipset namesVivek Sahu
Whenever new chipset support is added to the driver code, we ended up adding chipset name to the last of the switch case arising code readability issue because of improper sorting of the chipset names in various places of the code. Refactor code such a way that new chipset can be added easily in the code without compromising code readability. Signed-off-by: Vivek Sahu <vivek.sahu@oss.qualcomm.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btmtk: Add reset mechanism if downloading firmware failedChris Lu
Add a new flag 'BTMTK_FIRMWARE_DL_RETRY'. If an error occurs during mt79xx firmware download process, this flag will be set and cleared after a reset. If the flag is already set and firmware still cannot be loaded successfully after a reset, no further reset attempts will be made. In other words, if there is a problem during firmware download, only one reset will be attempted. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btmtk: add status check in mt79xx firmware setupChris Lu
To prevent abnormal controller states, it is necessary to check status in another part of the mt79xx firmware setup. During this process, receiving the 'BTMTK_WMT_PATCH_PROGRESS' status is unexpected. If this occurs, it should be treated as an error, and driver must be prevented from continuing execution. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10fwctl: Fix class init ordering to avoid NULL pointer dereference on device ↵Richard Cheng
removal CXL is linked before fwctl in drivers/Makefile. Both use `module_init, so `cxl_pci_driver_init()` runs first. When `cxl_pci_probe()` calls `fwctl_register()` and then `device_add()`, fwctl_class is not yet registered because fwctl_init() hasn't run, causing `class_to_subsys()` to return NULL and skip knode_class initialization. On device removal, `class_to_subsys()` returns non-NULL, and `device_del()` calls `klist_del()` on the uninitialized knode, triggering a NULL pointer dereference. Fixes: 858ce2f56b52 ("cxl: Add FWCTL support to CXL") Link: https://patch.msgid.link/r/20260409051902.40218-1-icheng@nvidia.com Signed-off-by: Richard Cheng <icheng@nvidia.com> Reviewed-by: Kai-Heng Feng <kaihengf@nvidia.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2026-04-10Bluetooth: btmtk: improve mt79xx firmware setup retry flowChris Lu
If retries are exhausted, driver should not do futher operation. During mt79xx firmware download process, if the retry count reaches0, driver will return an -EIO error and release the firmware resources. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btbcm: remove done label in btbcm_patchramDongyang Jin
There is no point in having the label since all it does is return the value in the 'err' variable. Instead make every goto return directly and remove the label. Signed-off-by: Dongyang Jin <jindongyang@kylinos.cn> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10Bluetooth: btusb: MT7922: Add VID/PID 0489/e174Chris Lu
Add VID 0489 & PID e174 for MediaTek MT7922 USB Bluetooth chip. The information in /sys/kernel/debug/usb/devices about the Bluetooth device is listed as the below. T: Bus=06 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 0 D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e174 Rev= 1.00 S: Manufacturer=MediaTek Inc. S: Product=Wireless_Device S: SerialNumber=000000000 C:* #Ifs= 3 Cfg#= 1 Atr=e0 MxPwr=100mA A: FirstIf#= 0 IfCount= 3 Cls=e0(wlcon) Sub=01 Prot=01 I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms I: If#= 2 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 64 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 64 Ivl=125us I:* If#= 2 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=8a(I) Atr=03(Int.) MxPS= 512 Ivl=125us E: Ad=0a(O) Atr=03(Int.) MxPS= 512 Ivl=125us Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2026-04-10platform/x86: int3472: Parameterize LED con_id in registrationMarco Nenciarini
Add a con_id parameter to skl_int3472_register_led() to allow callers to specify both the LED name suffix and lookup con_id instead of hardcoding "privacy". This prepares for registering additional LED types with different names. While at it, rename the privacy LED's GPIO con_id from "privacy-led" to "privacy" in int3472_get_con_id_and_polarity() and pass it directly to skl_int3472_register_led(), reducing churn when adding new LED types. No functional change. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Signed-off-by: Marco Nenciarini <mnencia@kcore.it> Link: https://patch.msgid.link/20260401203638.1601661-4-mnencia@kcore.it Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>