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2024-11-14Bluetooth: btintel_pcie: Replace deprecated PCI functionsPhilipp Stanner
pcim_iomap_regions() and pcim_iomap_table() have been deprecated in commit e354bb84a4c1 ("PCI: Deprecate pcim_iomap_table(), pcim_iomap_regions_request_all()"). Replace these functions with pcim_iomap_region(). Signed-off-by: Philipp Stanner <pstanner@redhat.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: Set quirks for ATS2851Danil Pylaev
This adds quirks for broken ats2851 features. Signed-off-by: Danil Pylaev <danstiv404@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: Support new quirks for ATS2851Danil Pylaev
This adds support for quirks for broken extended create connection, and write auth payload timeout. Signed-off-by: Danil Pylaev <danstiv404@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: Add new quirks for ATS2851Danil Pylaev
This adds quirks for broken extended create connection, and write auth payload timeout. Signed-off-by: Danil Pylaev <danstiv404@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14clk: amlogic: axg-audio: fix Kconfig dependency on RESET_MESON_AUXArnd Bergmann
As in most cases, using 'imply' is wrong here and does not prevent build failures since that code may not be visible to a built-in clk driver: axg-audio.c:(.text+0x15c): undefined reference to `devm_meson_rst_aux_register' Replace the incorrt 'imply' with the necessary 'depends on'. Fixes: 664988eb47dd ("clk: amlogic: axg-audio: use the auxiliary reset driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20241111102932.3209861-1-arnd@kernel.org Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-11-14Bluetooth: btintel_pcie: remove redundant assignment to variable retColin Ian King
The variable ret is being assigned -ENOMEM however this is never read and it is being re-assigned a new value when the code jumps to label resubmit. The assignment is redundant and can be removed. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: Fix type of len in rfcomm_sock_getsockopt{,_old}()Andrej Shadura
Commit 9bf4e919ccad worked around an issue introduced after an innocuous optimisation change in LLVM main: > len is defined as an 'int' because it is assigned from > '__user int *optlen'. However, it is clamped against the result of > sizeof(), which has a type of 'size_t' ('unsigned long' for 64-bit > platforms). This is done with min_t() because min() requires compatible > types, which results in both len and the result of sizeof() being casted > to 'unsigned int', meaning len changes signs and the result of sizeof() > is truncated. From there, len is passed to copy_to_user(), which has a > third parameter type of 'unsigned long', so it is widened and changes > signs again. This excessive casting in combination with the KCSAN > instrumentation causes LLVM to fail to eliminate the __bad_copy_from() > call, failing the build. The same issue occurs in rfcomm in functions rfcomm_sock_getsockopt and rfcomm_sock_getsockopt_old. Change the type of len to size_t in both rfcomm_sock_getsockopt and rfcomm_sock_getsockopt_old and replace min_t() with min(). Cc: stable@vger.kernel.org Co-authored-by: Aleksei Vetrov <vvvvvv@google.com> Improves: 9bf4e919ccad ("Bluetooth: Fix type of len in {l2cap,sco}_sock_getsockopt_old()") Link: https://github.com/ClangBuiltLinux/linux/issues/2007 Link: https://github.com/llvm/llvm-project/issues/85647 Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btintel: Do no pass vendor events to stackKiran K
During firmware download, vendor specific events like boot up and secure send result are generated. These events can be safely processed at the driver level. Passing on these events to stack prints unnecessary log as below. Bluetooth: hci0: Malformed MSFT vendor event: 0x02 Fixes: 3368aa357f3b ("Bluetooth: msft: Handle MSFT Monitor Device Event") Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btintel_pcie: Remove deadcodeEverest K.C.
The switch case statement has a default branch. Thus, the return statement at the end of the function can never be reached. Fix it by removing the return statement at the end of the function. This issue was reported by Coverity Scan. Signed-off-by: Everest K.C. <everestkc@everestkc.com.np> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: hci_qca: use devm_clk_get_optional_enabled_with_rate()Bartosz Golaszewski
Use the new devm_clk_get_optional_enabled_with_rate() clock helper to shrink the code a bit. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btintel: Add DSBR support for BlazarIW, BlazarU and GaPKiran K
Add DSBR support for BlazarIW, BlazarU and Gale Peak2 cores. 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>
2024-11-14Bluetooth: btmtksdio: Lookup device node only as fallbackChen-Yu Tsai
If the device tree is properly written, the SDIO function device node should be correctly defined, and the mmc core in Linux should correctly tie it to the device being probed. Only fall back to searching for the device node by compatible if the original device node tied to the device is incorrect, as seen in older device trees. Signed-off-by: Chen-Yu Tsai <wenst@chromium.org> Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> # Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14clk: clk-apple-nco: Add NULL check in applnco_probeCharles Han
Add NULL check in applnco_probe, to handle kernel NULL pointer dereference error. Fixes: 6641057d5dba ("clk: clk-apple-nco: Add driver for Apple NCO") Signed-off-by: Charles Han <hanchunchao@inspur.com> Link: https://lore.kernel.org/r/20241114072820.3071-1-hanchunchao@inspur.com Reviewed-by: Martin Povišer <povik+lin@cutebit.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-11-14Bluetooth: btintel_pcie: Add recovery mechanismKiran K
This patch adds a recovery mechanism to recover controller if firmware download fails due to unresponsive controller, command timeout, firmware signature verification failure etc. Driver attmepts maximum of 5 times before giving up. Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btintel_pcie: Add handshake between driver and firmwareKiran K
The following handshake mechanism needs be followed after firmware download is completed to bring the firmware to running state. After firmware fragments of Operational image are downloaded and secure sends result of the image succeeds, 1. Driver sends HCI Intel reset with boot option #1 to switch FW image. 2. FW sends Alive GP[0] MSIx 3. Driver enables data path (doorbell 0x460 for RBDs, etc...) 4. Driver gets Bootup event from firmware 5. Driver performs D0 entry to device (WRITE to IPC_Sleep_Control =0x0) 6. FW sends Alive GP[0] MSIx 7. Device host interface is fully set for BT protocol stack operation. 8. Driver may optionally get debug event with ID 0x97 which can be dropped For Intermediate loadger image, all the above steps are applicable expcept #5 and #6. On HCI_OP_RESET, firmware raises alive interrupt. Driver needs to wait for it before passing control over to bluetooth stack. Co-developed-by: Devegowda Chandrashekar <chandrashekar.devegowda@intel.com> Signed-off-by: Devegowda Chandrashekar <chandrashekar.devegowda@intel.com> Signed-off-by: Kiran K <kiran.k@intel.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: hci_core: Fix not checking skb length on hci_scodata_packetLuiz Augusto von Dentz
This fixes not checking if skb really contains an SCO header otherwise the code may attempt to access some uninitilized/invalid memory past the valid skb->data. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packetLuiz Augusto von Dentz
This fixes not checking if skb really contains an ACL header otherwise the code may attempt to access some uninitilized/invalid memory past the valid skb->data. Reported-by: syzbot+6ea290ba76d8c1eb1ac2@syzkaller.appspotmail.com Tested-by: syzbot+6ea290ba76d8c1eb1ac2@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=6ea290ba76d8c1eb1ac2 Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btnxpuart: Add GPIO support to power save featureNeeraj Sanjay Kale
This adds support for driving the chip into sleep or wakeup with a GPIO. If the device tree property device-wakeup-gpios is defined, the driver utilizes this GPIO for controlling the chip's power save state, else it uses the default UART-break method. Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14dt-bindings: net: bluetooth: nxp: Add support for power save feature using GPIONeeraj Sanjay Kale
This adds a new optional device tree property device-wakeup-gpios, which specifies the GPIO connected to BT_WAKE_IN pin of the NXP chipset. If this property is defined, the driver will use this GPIO for driving chip into sleep/wakeup state, else use the UART break signal by default. Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: hci_conn: Use disable_delayed_work_syncLuiz Augusto von Dentz
This makes use of disable_delayed_work_sync instead cancel_delayed_work_sync as it not only cancel the ongoing work but also disables new submit which is disarable since the object holding the work is about to be freed. Reported-by: syzbot+2446dd3cb07277388db6@syzkaller.appspotmail.com Tested-by: syzbot+2446dd3cb07277388db6@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=2446dd3cb07277388db6 Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btusb: Add USB HW IDs for MT7920/MT7925Jiande Lu
Add HW IDs for wireless module. These HW IDs are extracted from Windows driver inf file and the test for card bring up successful. MT7920 HW IDs test with below patch. https://patchwork.kernel.org/project/bluetooth/ patch/20240930081257.23975-1-chris.lu@mediatek.com/ Patch has been tested successfully and controller is recognized devices pair successfully. MT7920 module bring up message as below. Bluetooth: Core ver 2.22 Bluetooth: HCI device and connection manager initialized Bluetooth: HCI socket layer initialized Bluetooth: L2CAP socket layer initialized Bluetooth: SCO socket layer initialized Bluetooth: hci0: HW/SW Version: 0x008a008a, Build Time: 20240930111457 Bluetooth: hci0: Device setup in 143004 usecs Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported. Bluetooth: hci0: AOSP extensions version v1.00 Bluetooth: hci0: AOSP quality report is supported Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Bluetooth: BNEP filters: protocol multicast Bluetooth: BNEP socket layer initialized Bluetooth: MGMT ver 1.22 Bluetooth: RFCOMM TTY layer initialized Bluetooth: RFCOMM socket layer initialized Bluetooth: RFCOMM ver 1.11 MT7925 module bring up message as below. Bluetooth: Core ver 2.22 Bluetooth: HCI device and connection manager initialized Bluetooth: HCI socket layer initialized Bluetooth: L2CAP socket layer initialized Bluetooth: SCO socket layer initialized Bluetooth: hci0: HW/SW Version: 0x00000000, Build Time: 20240816133202 Bluetooth: hci0: Device setup in 286558 usecs Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported. Bluetooth: hci0: AOSP extensions version v1.00 Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Bluetooth: BNEP filters: protocol multicast Bluetooth: BNEP socket layer initialized Bluetooth: MGMT ver 1.22 Bluetooth: RFCOMM TTY layer initialized Bluetooth: RFCOMM socket layer initialized Bluetooth: RFCOMM ver 1.11 Signed-off-by: Jiande Lu <jiande.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btusb: Add RTL8852BE device 0489:e123 to device tablesHilda Wu
Add the support ID 0489:e123 to usb_device_id table for Realtek RTL8852B chip. The device info from /sys/kernel/debug/usb/devices as below. T: Bus=01 Lev=01 Prnt=01 Port=07 Cnt=04 Dev#= 7 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e123 Rev= 0.00 S: Manufacturer=Realtek S: Product=Bluetooth Radio S: SerialNumber=00e04c000001 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA 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=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=83(I) 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=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms Signed-off-by: Hilda Wu <hildawu@realtek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14bluetooth: Fix typos in the commentsYan Zhen
Correctly spelled comments make it easier for the reader to understand the code. Fix typos: 'fragement' ==> 'fragment', 'genration' ==> 'generation', 'funciton' ==> 'function', 'Explitly' ==> 'Explicitly', 'explaination' ==> 'explanation', 'Tranlate' ==> 'Translate', 'immediatelly' ==> 'immediately', 'isntance' ==> 'instance', 'transmittion' ==> 'transmission', 'recevie' ==> 'receive', 'outselves' ==> 'ourselves', 'conrol' ==> 'control'. Signed-off-by: Yan Zhen <yanzhen@vivo.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: hci_conn: Reduce hci_conn_drop() calls in two functionsMarkus Elfring
An hci_conn_drop() call was immediately used after a null pointer check for an hci_conn_link() call in two function implementations. Thus call such a function only once instead directly before the checks. This issue was transformed by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btnxpuart: Rename IW615 to IW610Neeraj Sanjay Kale
This changes the chip name of IW615 to IW610. IW610 (formerly called IW615) is yet to be released to broad market, hence there is no issue of backward compatibility. Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btnxpuart: Drop _v0 suffix from FW namesNeeraj Sanjay Kale
This updates all FW names by dropping the _v0 suffix. Its been decided that all NXP BT/ WiFi FW names won't support _v0 suffix. The suffix would be kept for next HW versions such as v1, v2 and so on, which do not have backward compatible FW. This change affects W8987, IW416 and IW615 chipsets, out of which new FW files for W8987 and IW615 are yet to be released to broad market. For IW416, old and new FW names are added to maintain backward compatibility for existing customers. Signed-off-by: Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14dt-bindings: clock: actions,owl-cmu: convert to YAMLIvaylo Ivanov
Convert the Actions Semi Owl CMU bindings to DT schema. Changes during conversion: - Since all Actions Semi Owl SoCs utilize the internal low frequency oscillator as a parent for some clocks, require it. Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Link: https://lore.kernel.org/r/20241114072601.265011-1-ivo.ivanov.ivanov1@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-11-14Bluetooth: btusb: Add one more ID 0x13d3:0x3623 for Qualcomm WCN785xZijun Hu
Add one more part with ID (0x13d3, 0x3623) to usb_device_id table for Qualcomm WCN785x, and its device info from /sys/kernel/debug/usb/devices is shown below: T: Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3623 Rev= 0.01 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA 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=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 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#= 1 Alt= 7 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 65 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 65 Ivl=1ms Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btusb: Add one more ID 0x0489:0xe0f3 for Qualcomm WCN785xZijun Hu
Add one more part with ID (0x0489, 0xe0f3) to usb_device_id table for Qualcomm WCN785x, and its device info from /sys/kernel/debug/usb/devices is shown below: T: Bus=01 Lev=01 Prnt=01 Port=13 Cnt=03 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e0f3 Rev= 0.01 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA 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=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 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#= 1 Alt= 7 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 65 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 65 Ivl=1ms Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btusb: add Foxconn 0xe0fc for Qualcomm WCN785xAaron Ma
Firmwares are already in upstream. kernel boot log as following: Bluetooth: hci0: using rampatch file: qca/rampatch_usb_00190200.bin Bluetooth: hci0: QCA: patch rome 0x190200 build 0x5656, firmware rome 0x190200 build 0x43fb Bluetooth: hci0: using NVM file: qca/nvm_usb_00190200.bin Paired BT headphone, output is good. T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0489 ProdID=e0fc Rev= 0.01 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA 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=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 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#= 1 Alt= 7 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 65 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 65 Ivl=1ms Signed-off-by: Aaron Ma <aaron.ma@canonical.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btusb: mediatek: change the conditions for ISO interfaceChris Lu
Change conditions for Bluetooth driver claiming and releasing usb ISO interface for MediaTek ISO data transmission. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btusb: mediatek: add intf release flow when usb disconnectChris Lu
MediaTek claim an special usb intr interface for ISO data transmission. The interface need to be released before unregistering hci device when usb disconnect. Removing BT usb dongle without properly releasing the interface may cause Kernel panic while unregister hci device. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14Bluetooth: btusb: mediatek: add callback function in btusb_disconnectChris Lu
Add disconnect callback function in btusb_disconnect which is reserved for vendor specific usage before deregister hci in btusb_disconnect. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-14dt-bindings: clock: ti: Convert mux.txt to json-schemaAndreas Kemnade
Convert the OMAP mux clock device tree binding to json-schema. Specify the creator of the original binding as a maintainer. Choose GPL-only license because original binding was also GPL. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20241112162618.400194-1-andreas@kemnade.info Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2024-11-14Bluetooth: btusb: mediatek: move Bluetooth power off command positionChris Lu
Move MediaTek Bluetooth power off command before releasing usb ISO interface. Signed-off-by: Chris Lu <chris.lu@mediatek.com> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2024-11-15Merge tag 'drm-intel-fixes-2024-11-14' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes - Don't load GSC on ARL-H and ARL-U if too old FW - Avoid potential OOPS in enabling/disabling TV output Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZzWksU6CMGLPfjkT@jlahtine-mobl.ger.corp.intel.com
2024-11-14perf probe: Introduce quotation marks supportMasami Hiramatsu (Google)
In non-C languages, it is possible to have ':' in the function names. It is possible to escape it with backslashes, but if there are too many backslashes, it is annoying. This introduce quotation marks (`"` or `'`) support. For example, without quotes, we have to pass it as below $ perf probe -x cro3 -L "cro3\:\:cmd\:\:servo\:\:run_show" <run_show@/work/cro3/src/cmd/servo.rs:0> 0 fn run_show(args: &ArgsShow) -> Result<()> { 1 let list = ServoList::discover()?; 2 let s = list.find_by_serial(&args.servo)?; 3 if args.json { 4 println!("{s}"); With quotes, we can more naturally write the function name as below; $ perf probe -x cro3 -L \"cro3::cmd::servo::run_show\" <run_show@/work/cro3/src/cmd/servo.rs:0> 0 fn run_show(args: &ArgsShow) -> Result<()> { 1 let list = ServoList::discover()?; 2 let s = list.find_by_serial(&args.servo)?; 3 if args.json { 4 println!("{s}"); Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/173099116941.2431889.11609129616090100386.stgit@mhiramat.roam.corp.google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-11-14perf string: Add strpbrk_esq() and strdup_esq() for escape and quoteMasami Hiramatsu (Google)
strpbrk_esq() and strdup_esq() are new variants for strpbrk() and strdup() which handles escaped characters and quoted strings. - strpbrk_esq() searches specified set of characters but ignores the escaped characters and quoted strings. e.g. strpbrk_esq("'quote\d' \queue quiz", "qd") returns "quiz". - strdup_esq() duplicates string but removes backslash and quotes which is used for quotation. It also keeps the string (including backslash) in the quoted part. e.g. strdup_esq("'quote\d' \queue quiz") returns "quote\d queue quiz". The (single, double) quotes in the quoted part should be escaped by backslash. In this case, strdup_esq() removes that backslash. The same quotes must be paired. If you use double quotation, you need to use the double quotation to close the quoted part. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/173099116045.2431889.15772916605719019533.stgit@mhiramat.roam.corp.google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-11-14perf probe: Accept FUNC@* to specify function name explicitlyMasami Hiramatsu (Google)
In Golang, the function name will have the '.', and 'perf probe' misinterprets it as a file name. To mitigate this situation, introduce `function@*` so that user can explicitly specify that it is a function name. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/173099115149.2431889.13682110856853358354.stgit@mhiramat.roam.corp.google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-11-14perf probe: Fix to ignore escaped characters in --lines optionMasami Hiramatsu (Google)
Use strbprk_esc() and strdup_esc() to ignore escaped characters in --lines option. This has been done for other options, but only --lines option doesn't. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/173099114272.2431889.4820591557298941207.stgit@mhiramat.roam.corp.google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-11-14perf probe: Fix error message for failing to find line rangeMasami Hiramatsu (Google)
With --lines option, if perf-probe fails to find the specified line, it warns as "Debuginfo analysis failed." but this misleads user as the debuginfo is broken. Fix this message to "Specified source line(LINESPEC) is not found." so that user can understand the error correctly. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Link: https://lore.kernel.org/r/173099113381.2431889.16263147678401426107.stgit@mhiramat.roam.corp.google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-11-14jffs2: Prevent rtime decompress memory corruptionKinsey Moore
The rtime decompression routine does not fully check bounds during the entirety of the decompression pass and can corrupt memory outside the decompression buffer if the compressed data is corrupted. This adds the required check to prevent this failure mode. Cc: stable@vger.kernel.org Signed-off-by: Kinsey Moore <kinsey.moore@oarcorp.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2024-11-14perf trace: Fix tracing itself, creating feedback loopsHoward Chu
There exists a pids_filtered map in augmented_raw_syscalls.bpf.c that ceases to provide functionality after the BPF skeleton migration done in: 5e6da6be3082f77b ("perf trace: Migrate BPF augmentation to use a skeleton") Before the migration, pid_filtered map works, courtesy of Arnaldo Carvalho de Melo <acme@kernel.org>: ⬢ [acme@toolbox perf-tools]$ git log --oneline -5 6f769c3458b6cf2d (HEAD) perf tests trace+probe_vfs_getname.sh: Accept quotes surrounding the filename 7777ac3dfe29f55d perf test trace+probe_vfs_getname.sh: Remove stray \ before / 33d9c5062113a4bd perf script python: Add stub for PMU symbol to the python binding e59fea47f83e8a9a perf symbols: Fix DSO kernel load and symbol process to correctly map DSO to its long_name, type and adjust_symbols 878460e8d0ff84a0 perf build: Remove -Wno-unused-but-set-variable from the flex flags when building with clang < 13.0.0 root@x1:/home/acme/git/perf-tools# perf trace -e /tmp/augmented_raw_syscalls.o -e write* --max-events=30 & [1] 180632 root@x1:/home/acme/git/perf-tools# 0.000 ( 0.051 ms): NetworkManager/1127 write(fd: 3, buf: 0x7ffeb508ef70, count: 8) = 8 0.115 ( 0.010 ms): NetworkManager/1127 write(fd: 3, buf: 0x7ffeb508ef70, count: 8) = 8 0.916 ( 0.068 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 246) = 246 1.699 ( 0.047 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 2.167 ( 0.041 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 2.739 ( 0.042 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 3.138 ( 0.027 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 3.477 ( 0.027 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 3.738 ( 0.023 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 3.946 ( 0.024 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 4.195 ( 0.024 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 121) = 121 4.212 ( 0.026 ms): NetworkManager/1127 write(fd: 3, buf: 0x7ffeb508ef70, count: 8) = 8 4.285 ( 0.006 ms): NetworkManager/1127 write(fd: 3, buf: 0x7ffeb508ef70, count: 8) = 8 4.445 ( 0.018 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 260) = 260 4.508 ( 0.009 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 124) = 124 4.592 ( 0.010 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 116) = 116 4.666 ( 0.009 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 130) = 130 4.715 ( 0.010 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 95) = 95 4.765 ( 0.007 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 102) = 102 4.815 ( 0.009 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 79) = 79 4.890 ( 0.008 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 57) = 57 4.937 ( 0.007 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 89) = 89 5.009 ( 0.010 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 112) = 112 5.059 ( 0.010 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 112) = 112 5.116 ( 0.007 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 79) = 79 5.152 ( 0.009 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 33) = 33 5.215 ( 0.008 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 37) = 37 5.293 ( 0.010 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 128) = 128 5.339 ( 0.009 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 89) = 89 5.384 ( 0.008 ms): sudo/156867 write(fd: 8, buf: 0x55cb4cd2f650, count: 100) = 100 [1]+ Done perf trace -e /tmp/augmented_raw_syscalls.o -e write* --max-events=30 root@x1:/home/acme/git/perf-tools# No events for the 'perf trace' (pid 180632), i.e. no feedback loop. If we leave it running: root@x1:/home/acme/git/perf-tools# perf trace -e /tmp/augmented_raw_syscalls.o -e landlock_add_rule & [1] 181068 root@x1:/home/acme/git/perf-tools# And then look at what maps it sets up: root@x1:/home/acme/git/perf-tools# bpftool map | grep pids_filtered -A3 1190: hash name pids_filtered flags 0x0 key 4B value 1B max_entries 64 memlock 7264B btf_id 1613 pids perf(181068) root@x1:/home/acme/git/perf-tools# And ask for dumping its contents: We see that we are _also_ setting it to filter those: root@x1:/home/acme/git/perf-tools# bpftool map dump id 1190 [{ "key": 181068, "value": 1 },{ "key": 156801, "value": 1 } ] Now testing the migration commit: perf $ git log commit 5e6da6be3082f77be06894a1a94d52a90b4007dc (HEAD) Author: Ian Rogers <irogers@google.com> Date: Thu Aug 10 11:48:51 2023 -0700 perf trace: Migrate BPF augmentation to use a skeleton perf $ ./perf trace -e write --max-events=10 & echo #! [1] 1808653 perf $ 0.000 ( 0.010 ms): :1808671/1808671 write(fd: 1, buf: 0x6003f5b26fc0, count: 11) = 11 0.162 ( ): perf/1808653 write(fd: 2, buf: 0x7fffc2174e50, count: 11) ... 0.174 ( ): perf/1808653 write(fd: 2, buf: 0x74ce21804563, count: 1) ... 0.184 ( ): perf/1808653 write(fd: 2, buf: 0x57b936589052, count: 5) The feedback loop is there. Keep it running, look into the bpf map: perf $ bpftool map | grep pids_filtered 10675: hash name pids_filtered flags 0x0 perf $ bpftool map dump id 10675 [] The map is empty. Now, this commit: 64917f4df048a064 ("perf trace: Use heuristic when deciding if a syscall tracepoint "const char *" field is really a string") Temporarily fixed the feedback loop for perf trace -e write, that's because before using the heuristic, write is hooked to sys_enter_openat: perf $ git log commit 83a0943b1870944612a8aa0049f910826ebfd4f7 (HEAD) Author: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Thu Aug 17 12:11:51 2023 -0300 perf trace: Use the augmented_raw_syscall BPF skel only for tracing syscalls perf $ ./perf trace -e write --max-events=10 -v 2>&1 | grep Reusing Reusing "openat" BPF sys_enter augmenter for "write" And after the heuristic fix, it's unaugmented: perf $ git log commit 64917f4df048a0649ea7901c2321f020e71e6f24 (HEAD) Author: Arnaldo Carvalho de Melo <acme@redhat.com> Date: Thu Aug 17 15:14:21 2023 -0300 perf trace: Use heuristic when deciding if a syscall tracepoint "const char *" field is really a string perf $ ./perf trace -e write --max-events=10 -v 2>&1 | grep Reusing perf $ After using the heuristic, write is hooked to syscall_unaugmented, which returns 1. SEC("tp/raw_syscalls/sys_enter") int syscall_unaugmented(struct syscall_enter_args *args) { return 1; } If the BPF program returns 1, the tracepoint filter will filter it (since the tracepoint filter for perf is correctly set), but before the heuristic, when it was hooked to a sys_enter_openat(), which is a BPF program that calls bpf_perf_event_output() and writes to the buffer, it didn't get filtered, thus creating feedback loop. So switching write to unaugmented accidentally fixed the problem. But some syscalls are not so lucky, for example newfstatat: perf $ ./perf trace -e newfstatat --max-events=100 & echo #! [1] 2166948 457.718 ( ): perf/2166948 newfstatat(dfd: CWD, filename: "/proc/self/ns/mnt", statbuf: 0x7fff0132a9f0) ... 457.749 ( ): perf/2166948 newfstatat(dfd: CWD, filename: "/proc/2166950/ns/mnt", statbuf: 0x7fff0132aa80) ... 457.962 ( ): perf/2166948 newfstatat(dfd: CWD, filename: "/proc/self/ns/mnt", statbuf: 0x7fff0132a9f0) ... Currently, write is augmented by the new BTF general augmenter (which calls bpf_perf_event_output()). The problem, which luckily got fixed, resurfaced, and that’s how it was discovered. Fixes: 5e6da6be3082f77b ("perf trace: Migrate BPF augmentation to use a skeleton") Signed-off-by: Howard Chu <howardchu95@gmail.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: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20241030052431.2220130-1-howardchu95@gmail.com [ Check if trace->skel is non-NULL, as it is only initialized if trace->trace_syscalls is set ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-11-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.12-rc8). Conflicts: tools/testing/selftests/net/.gitignore 252e01e68241 ("selftests: net: add netlink-dumps to .gitignore") be43a6b23829 ("selftests: ncdevmem: Move ncdevmem under drivers/net/hw") https://lore.kernel.org/all/20241113122359.1b95180a@canb.auug.org.au/ drivers/net/phy/phylink.c 671154f174e0 ("net: phylink: ensure PHY momentary link-fails are handled") 7530ea26c810 ("net: phylink: remove "using_mac_select_pcs"") Adjacent changes: drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c 5b366eae7193 ("stmmac: dwmac-intel-plat: fix call balance of tx_clk handling routines") e96321fad3ad ("net: ethernet: Switch back to struct platform_driver::remove()") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-11-14jffs2: remove redundant check on outpos > posColin Ian King
The check for outpos > pos is always false because outpos is zero and pos is at least zero; outpos can never be greater than pos. The check is redundant and can be removed. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2024-11-14fs: jffs2: Fix inconsistent indentation in jffs2_mark_node_obsoleteSuraj Sonawane
Fix the indentation to ensure consistent code style and improve readability, and to fix this warnings: fs/jffs2/nodemgmt.c:635 jffs2_mark_node_obsolete() warn: inconsistent indenting fs/jffs2/nodemgmt.c:646 jffs2_mark_node_obsolete() warn: inconsistent indenting Signed-off-by: Suraj Sonawane <surajsonawane0215@gmail.com> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2024-11-14jffs2: Correct some typos in commentsShen Lichuan
Fixed some confusing spelling errors, the details are as follows: -in the code comments: wating -> waiting succefully -> successfully Signed-off-by: Shen Lichuan <shenlichuan@vivo.com> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2024-11-14jffs2: fix use of uninitialized variableQingfang Deng
When building the kernel with -Wmaybe-uninitialized, the compiler reports this warning: In function 'jffs2_mark_erased_block', inlined from 'jffs2_erase_pending_blocks' at fs/jffs2/erase.c:116:4: fs/jffs2/erase.c:474:9: warning: 'bad_offset' may be used uninitialized [-Wmaybe-uninitialized] 474 | jffs2_erase_failed(c, jeb, bad_offset); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/jffs2/erase.c: In function 'jffs2_erase_pending_blocks': fs/jffs2/erase.c:402:18: note: 'bad_offset' was declared here 402 | uint32_t bad_offset; | ^~~~~~~~~~ When mtd->point() is used, jffs2_erase_pending_blocks can return -EIO without initializing bad_offset, which is later used at the filebad label in jffs2_mark_erased_block. Fix it by initializing this variable. Fixes: 8a0f572397ca ("[JFFS2] Return values of jffs2_block_check_erase error paths") Signed-off-by: Qingfang Deng <qingfang.deng@siflower.com.cn> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2024-11-14jffs2: Use str_yes_no() helper functionThorsten Blum
Remove hard-coded strings by using the str_yes_no() helper function. Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Signed-off-by: Richard Weinberger <richard@nod.at>
2024-11-14mtd: ubi: remove redundant check on bytes_left at end of functionColin Ian King
In function ubi_nvmem_reg_read the while-loop can only be exiting of bytes_left is zero or an error has occurred. There is an exit return path if an error occurs, so the bytes_left can only be zero after that point. Hence the check for a non-zero bytes_left at the end of the function is redundant and can be removed. Remove the check and just return 0. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
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