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2021-12-21net/mlx5e: Use bitmap field for profile featuresTariq Toukan
Use a features bitmap field in mlx5e_profile to declare profile support state of the different features. Let it replace the existing rx_ptp_support boolean. It will be extended to cover more features in a downstream patch. Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-21net/mlx5: Remove the repeated declarationShaokun Zhang
Function 'mlx5_esw_vport_match_metadata_supported' and 'mlx5_esw_offloads_vport_metadata_set' are declared twice, so remove the repeated declaration and blank line. Cc: Saeed Mahameed <saeedm@nvidia.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-21net/mlx5: Let user configure max_macs generic paramShay Drory
Currently, max_macs is taking 70Kbytes of memory per function. This size is not needed in all use cases, and is critical with large scale. Hence, allow user to configure the number of max_macs. For example, to reduce the number of max_macs to 1, execute:: $ devlink dev param set pci/0000:00:0b.0 name max_macs value 1 \ cmode driverinit $ devlink dev reload pci/0000:00:0b.0 Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Parav Pandit <parav@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-21devlink: Clarifies max_macs generic devlink paramShay Drory
The generic param max_macs documentation isn't clear. Replace it with a more descriptive documentation Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-21net/mlx5: Let user configure event_eq_size paramShay Drory
Event EQ is an EQ which received the notification of almost all the events generated by the NIC. Currently, each event EQ is taking 512KB of memory. This size is not needed in most use cases, and is critical with large scale. Hence, allow user to configure the size of the event EQ. For example to reduce event EQ size to 64, execute:: $ devlink dev param set pci/0000:00:0b.0 name event_eq_size value 64 \ cmode driverinit $ devlink dev reload pci/0000:00:0b.0 Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-21devlink: Add new "event_eq_size" generic device paramShay Drory
Add new device generic parameter to determine the size of the asynchronous control events EQ. For example, to reduce event EQ size to 64, execute: $ devlink dev param set pci/0000:06:00.0 \ name event_eq_size value 64 cmode driverinit $ devlink dev reload pci/0000:06:00.0 Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-21net/mlx5: Let user configure io_eq_size paramShay Drory
Currently, each I/O EQ is taking 128KB of memory. This size is not needed in all use cases, and is critical with large scale. Hence, allow user to configure the size of I/O EQs. For example, to reduce I/O EQ size to 64, execute: $ devlink dev param set pci/0000:00:0b.0 name io_eq_size value 64 \ cmode driverinit $ devlink dev reload pci/0000:00:0b.0 Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-21devlink: Add new "io_eq_size" generic device paramShay Drory
Add new device generic parameter to determine the size of the I/O completion EQs. For example, to reduce I/O EQ size to 64, execute: $ devlink dev param set pci/0000:06:00.0 \ name io_eq_size value 64 cmode driverinit $ devlink dev reload pci/0000:06:00.0 Signed-off-by: Shay Drory <shayd@nvidia.com> Reviewed-by: Moshe Shemesh <moshe@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
2021-12-22drm/exynos: drop the use of label from exynos_dsi_register_te_irqInki Dae
Dropped the use of 'out' label from exynos_dsi_register_te_irq function because the label isn't needed. This patch returns an error in each error case directly not going to 'out' label. With this patch build warning[1] is also fixed, which was reported by kernel test robot <lkp@intel.com> [1] https://www.spinics.net/lists/dri-devel/msg323803.html Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2021-12-22drm/exynos: remove useless type conversionBernard Zhao
This change is to cleanup the code a bit. Signed-off-by: Bernard Zhao <bernard@vivo.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2021-12-22drm/exynos: Implement mmap as GEM object functionThomas Zimmermann
Moving the driver-specific mmap code into a GEM object function allows for using DRM helpers for various mmap callbacks. The respective exynos functions are being removed. The file_operations structure exynos_drm_driver_fops is now being created by the helper macro DEFINE_DRM_GEM_FOPS(). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Fixed merge conflict. Signed-off-by: Inki Dae <inki.dae@samsung.com>
2021-12-22drm/exynos: Replace legacy gpio interface for gpiod interfaceMaíra Canal
Considering the current transition of the GPIO subsystem, remove all dependencies of the legacy GPIO interface (linux/gpio.h and linux /of_gpio.h) and replace it with the descriptor-based GPIO approach. Signed-off-by: Maíra Canal <maira.canal@usp.br> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2021-12-22pinctrl: Propagate firmware node from a parent deviceAndy Shevchenko
When creating MFD platform devices the firmware node is left unset. This, in particular, prevents GPIO library to use it for different purposes. Propagate firmware node from the parent device and let GPIO library do the right thing. While at it, slightly modify the headers to reflect the usage of APIs. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/20211216151227.58687-1-andriy.shevchenko@linux.intel.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-12-22dt-bindings: pinctrl: qcom: Add SDX65 pinctrl bindingsVamsi Krishna Lanka
Add device tree binding Documentation details for Qualcomm SDX65 pinctrl driver. Signed-off-by: Vamsi Krishna Lanka <quic_vamslank@quicinc.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/ff9abf953c274a1e34f59114642f67ecf02acb6f.1639696427.git.quic_vamslank@quicinc.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-12-22pinctrl: add one more "const" for generic function groupsRafał Miłecki
Generic code doesn't modify those strings and .get_function_groups callback has that extra "const" as well. This allows more flexibility in GENERIC_PINMUX_FUNCTIONS users. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20211216162206.8027-4-zajec5@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-12-22pinctrl: keembay: rework loops looking for groups namesRafał Miłecki
Make the outer loop iterate over functions as that's the real subject. This simplifies code (and reduces amount of lines of code) as allocating memory for names doesn't require extra checks anymore. While at it use local "group_names" variable. The plan for "struct function_desc" is to make its "group_names" /double/ const. That will allow drivers to use it with static const data. This keembay "group_names" change is required to avoid: drivers/pinctrl/pinctrl-keembay.c: In function 'keembay_add_functions': drivers/pinctrl/pinctrl-keembay.c:1594:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1594 | grp = func->group_names; | ^ Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20211216162206.8027-3-zajec5@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-12-22pinctrl: keembay: comment process of building functions a bitRafał Miłecki
This should make code a bit easier to follow. While at it use some "for" loops to simplify array iteration loops. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20211216162206.8027-2-zajec5@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-12-22pinctrl: imx: prepare for making "group_names" in "function_desc" constRafał Miłecki
The plan for "struct function_desc" is to make its "group_names" /double/ const. That will allow drivers to use it with static const data. This imx change is required to avoid: drivers/pinctrl/freescale/pinctrl-imx.c: In function 'imx_pinctrl_parse_functions': drivers/pinctrl/freescale/pinctrl-imx.c:672:24: error: assignment of read-only location '*(func->group_names + (sizetype)(i * 4))' 672 | func->group_names[i] = child->name; | ^ Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20211216162206.8027-1-zajec5@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-12-21Merge branch '1GbE' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue Tony Nguyen says: ==================== 1GbE Intel Wired LAN Driver Updates 2021-12-21 This series contains updates to igc, igb, igbvf, and fm10k drivers. Sasha removes unused defines and enum values from igc driver. Jason Wang removes a variable whose value never changes and, instead, returns the value directly for igb. Karen adjusts a reset message from warning to info for igbvf. Xiang wangx removes a repeated word for fm10k. * '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue: fm10k: Fix syntax errors in comments igbvf: Refactor trace igb: remove never changed variable `ret_val' igc: Remove obsolete define igc: Remove obsolete mask igc: Remove obsolete nvm type igc: Remove unused phy type igc: Remove unused _I_PHY_ID define ==================== Link: https://lore.kernel.org/r/20211221180200.3176851-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-21net: phy: micrel: Adding interrupt support for Link up/Link down in LAN8814 ↵Divya Koppera
Quad phy This patch add support for Link up or Link down interrupt support in LAN8814 Quad phy Signed-off-by: Divya Koppera <Divya.Koppera@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20211221112217.9502-1-Divya.Koppera@microchip.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-21bonding: fix ad_actor_system option setting to defaultFernando Fernandez Mancera
When 802.3ad bond mode is configured the ad_actor_system option is set to "00:00:00:00:00:00". But when trying to set the all-zeroes MAC as actors' system address it was failing with EINVAL. An all-zeroes ethernet address is valid, only multicast addresses are not valid values. Fixes: 171a42c38c6e ("bonding: add netlink support for sys prio, actor sys mac, and port key") Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net> Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com> Link: https://lore.kernel.org/r/20211221111345.2462-1-ffmancera@riseup.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-21bpftool: Enable line buffering for stdoutPaul Chaignon
The output of bpftool prog tracelog is currently buffered, which is inconvenient when piping the output into other commands. A simple tracelog | grep will typically not display anything. This patch fixes it by enabling line buffering on stdout for the whole bpftool binary. Fixes: 30da46b5dc3a ("tools: bpftool: add a command to dump the trace pipe") Signed-off-by: Quentin Monnet <quentin@isovalent.com> Signed-off-by: Paul Chaignon <paul@isovalent.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20211220214528.GA11706@Mem
2021-12-21bpf: Use struct_size() helperXiu Jianfeng
In an effort to avoid open-coded arithmetic in the kernel, use the struct_size() helper instead of open-coded calculation. Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://github.com/KSPP/linux/issues/160 Link: https://lore.kernel.org/bpf/20211220113048.2859-1-xiujianfeng@huawei.com
2021-12-21compiler.h: Fix annotation macro misplacement with ClangJosh Poimboeuf
When building with Clang and CONFIG_TRACE_BRANCH_PROFILING, there are a lot of unreachable warnings, like: arch/x86/kernel/traps.o: warning: objtool: handle_xfd_event()+0x134: unreachable instruction Without an input to the inline asm, 'volatile' is ignored for some reason and Clang feels free to move the reachable() annotation away from its intended location. Fix that by re-adding the counter value to the inputs. Fixes: f1069a8756b9 ("compiler.h: Avoid using inline asm operand modifiers") Fixes: c199f64ff93c ("instrumentation.h: Avoid using inline asm operand modifiers") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/0417e96909b97a406323409210de7bf13df0b170.1636410380.git.jpoimboe@redhat.com Cc: Peter Zijlstra <peterz@infradead.org> Cc: x86@kernel.org Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Miroslav Benes <mbenes@suse.cz>
2021-12-21uapi: Fix undefined __always_inline on non-glibc systemsIsmael Luceno
This macro is defined by glibc itself, which makes the issue go unnoticed on those systems. On non-glibc systems it causes build failures on several utilities and libraries, like bpftool and objtool. Fixes: 1d509f2a6ebc ("x86/insn: Support big endian cross-compiles") Fixes: 2d7ce0e8a704 ("tools/virtio: more stubs") Fixes: 3fb321fde22d ("selftests/net: ipv6 flowlabel") Fixes: 50b3ed57dee9 ("selftests/bpf: test bpf flow dissection") Fixes: 9cacf81f8161 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE") Fixes: a4b2061242ec ("tools include uapi: Grab a copy of linux/in.h") Fixes: b12d6ec09730 ("bpf: btf: add btf print functionality") Fixes: c0dd967818a2 ("tools, include: Grab a copy of linux/erspan.h") Fixes: c4b6014e8bb0 ("tools: Add copy of perf_event.h to tools/include/linux/") Signed-off-by: Ismael Luceno <ismael@iodev.co.uk> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lore.kernel.org/r/20211115134647.1921-1-ismael@iodev.co.uk Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com>
2021-12-21Bluetooth: btusb: Add two more Bluetooth parts for WCN6855Zijun Hu
Add USB IDs (0x10ab, 0x9309) and (0x10ab, 0x9409) to usb_device_id table for WCN6855. * /sys/kernel/debug/usb/devices T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 10 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=10ab ProdID=9309 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 T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 11 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=10ab ProdID=9409 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: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2021-12-21Bluetooth: L2CAP: Fix using wrong modeLuiz Augusto von Dentz
If user has a set to use SOCK_STREAM the socket would default to L2CAP_MODE_ERTM which later needs to be adjusted if the destination address is LE which doesn't support such mode. Fixes: 15f02b9105625 ("Bluetooth: L2CAP: Add initial code for Enhanced Credit Based Mode") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-12-21Bluetooth: hci_sync: Fix not always pausing advertising when necessaryLuiz Augusto von Dentz
hci_pause_advertising_sync shall always pause advertising until hci_resume_advertising_sync but instance 0x00 doesn't count in adv_instance_cnt so it was causing it to be skipped. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-12-21Bluetooth: mgmt: Make use of mgmt_send_event_skb in MGMT_EV_DEVICE_CONNECTEDLuiz Augusto von Dentz
This makes use of mgmt_alloc_skb to build MGMT_EV_DEVICE_CONNECTED so the data is copied directly to skb that is then sent using mgmt_send_event_skb eliminating the necessity of intermediary buffers. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-12-21Bluetooth: mgmt: Make use of mgmt_send_event_skb in MGMT_EV_DEVICE_FOUNDLuiz Augusto von Dentz
This makes use of mgmt_alloc_skb to build MGMT_EV_DEVICE_FOUND so the data is copied directly to skb that is then sent using mgmt_send_event_skb eliminating the necessity of intermediary buffers. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2021-12-21perf arm64: Inject missing frames when using 'perf record --call-graph=fp'Alexandre Truong
When unwinding using frame pointers on ARM64, the return address of the current function may not have been pushed into the stack when a function was interrupted, which makes perf show an incorrect call graph to the user. Consider the following example program: void leaf() { /* long computation */ } void parent() { // (1) leaf(); // (2) } ... could be compiled into (using gcc -fno-inline -fno-omit-frame-pointer): leaf: /* long computation */ nop ret parent: // (1) stp x29, x30, [sp, -16]! mov x29, sp bl parent nop ldp x29, x30, [sp], 16 // (2) ret If the program is interrupted at (1), (2), or any point in "leaf:", the call graph will skip the callers of the current function. We can unwind using the dwarf info and check if the return addr is the same as the LR register, and inject the missing frame into the call graph. Before this patch, the above example shows the following call-graph when recording using "--call-graph fp" mode in ARM64: # Children Self Command Shared Object Symbol # ........ ........ ........ ................ ...................... # 99.86% 99.86% program3 program3 [.] leaf | ---_start __libc_start_main main leaf As can be seen, the "parent" function is missing. This is specially problematic in "leaf" because for leaf functions the compiler may always omit pushing the return addr into the stack. After this patch, it shows the correct graph: # Children Self Command Shared Object Symbol # ........ ........ ........ ................ ...................... # 99.86% 99.86% program3 program3 [.] leaf | ---_start __libc_start_main main parent leaf Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Alexandre Truong <alexandre.truong@arm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20211217154521.80603-7-german.gomez@arm.com Signed-off-by: German Gomez <german.gomez@arm.com> [ Rename machine__normalize_is() to machine__normalized_is(), as suggested by James Clark ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-21perf tools: Refactor SMPL_REG macro in perf_regs.hGerman Gomez
Refactor the SAMPL_REG macro so that it can be used in a followup commit to obtain the masks for ARM64 registers. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: German Gomez <german.gomez@arm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20211217154521.80603-6-german.gomez@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-21perf callchain: Enable dwarf_callchain_users on arm64Alexandre Truong
Enable dwarf_callchain_users on arm64 which will be needed to do a DWARF unwind in order to get the caller of the leaf frame. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Alexandre Truong <alexandre.truong@arm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20211217154521.80603-5-german.gomez@arm.com Signed-off-by: German Gomez <german.gomez@arm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-21perf script: Use callchain_param_setup() instead of open coded equivalentAlexandre Truong
Refactoring script__setup_sample_type() by using callchain_param_setup() to replace the duplicate code for callchain parameter setting up. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Alexandre Truong <alexandre.truong@arm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20211217154521.80603-4-german.gomez@arm.com Signed-off-by: German Gomez <german.gomez@arm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-21perf machine: Add a mechanism to inject stack framesAlexandre Truong
Add a mechanism for platforms to inject stack frames for the leaf frame caller if there is enough information to determine a frame is missing from dwarf or other post processing mechanisms. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Alexandre Truong <alexandre.truong@arm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20211217154521.80603-3-german.gomez@arm.com Signed-off-by: German Gomez <german.gomez@arm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-21perf tools: Record ARM64 LR register automaticallyAlexandre Truong
On ARM64, automatically record the link register if the frame pointer mode is on. It will be used to do a dwarf unwind to find the caller of the leaf frame if the frame pointer was omitted. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Alexandre Truong <alexandre.truong@arm.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: John Garry <john.garry@huawei.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20211217154521.80603-2-german.gomez@arm.com Signed-off-by: German Gomez <german.gomez@arm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-21perf test: Use 3 digits for test numbering now we can have more testsCarsten Haitzler
This is in preparation for adding more tests that will need the test number to be 3 digts so they align nicely in the output. Reviewed-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Carsten Haitzler <carsten.haitzler@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: coresight@lists.linaro.org Link: http://lore.kernel.org/lkml/20211215160403.69264-3-carsten.haitzler@foss.arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-12-21hostfs: Fix writeback of dirty pagesSjoerd Simons
Hostfs was not setting up the backing device information, which means it uses the noop bdi. The noop bdi does not have the writeback capability enabled, which in turns means dirty pages never got written back to storage. In other words programs using mmap to write to files on hostfs never actually got their data written out... Fix this by simply setting up the bdi with default settings as all the required code for writeback is already in place. Signed-off-by: Sjoerd Simons <sjoerd@collabora.com> Reviewed-by: Christopher Obbard <chris.obbard@collabora.com> Tested-by: Ritesh Raj Sarraf <ritesh@collabora.com> Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: Use swap() to make code cleanerYang Guang
Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid opencoding it. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Yang Guang <yang.guang5@zte.com.cn> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21Merge tag 'pm-5.16-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "Fix a recent regression causing the loop in dpm_prepare() to become infinite if one of the device ->prepare() callbacks returns an error" * tag 'pm-5.16-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: sleep: Fix error handling in dpm_prepare()
2021-12-21um: header debriding - sigio.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: header debriding - os.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: header debriding - net_*.hAl Viro
externs dead since before the initial merge Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: header debriding - mem_user.hAl Viro
get_vm(), add_iomem(), phys_offset() dead since 2004; init_mem_user() and setup_memory() - since before the initial merge. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: header debriding - activate_ipi()Al Viro
... had been dead for 15 years. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: common-offsets.h debriding...Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um, x86: bury crypto_tfm_ctx_offsetAl Viro
unused since 2011 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: unexport handle_page_fault()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: remove a dangling extern of syscall_trace()Al Viro
the function had been gone since 2012... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2021-12-21um: kill unused cpu()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
generated by cgit (git 2.34.1) at 2025-09-22 20:30:21 +0000