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2020-07-30ASoC: amd: Added hw_params support for ALC1015Ravulapati Vishnu vardhan rao
Adding rt1015 hw_params which set Bit-clock ratio, PLL and appropriate sys clk specific with RTK1015. Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> Link: https://lore.kernel.org/r/20200728160255.31020-6-Vishnuvardhanrao.Ravulapati@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: amd: Adding DAI LINK for rt1015 codecRavulapati Vishnu vardhan rao
DAI link support for RTK 1015 and providing the codec details depending on the snd_soc_card selected by ACPI ID. Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> Link: https://lore.kernel.org/r/20200728160255.31020-5-Vishnuvardhanrao.Ravulapati@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: amd: Adding support for ALC1015 codec in machine driverRavulapati Vishnu vardhan rao
Adding support for ALC1015 RTK codec in machine driver. Passing specific card structure based on its ACPI ID. Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> Link: https://lore.kernel.org/r/20200728160255.31020-4-Vishnuvardhanrao.Ravulapati@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: amd: Passing card structure based on codecRavulapati Vishnu vardhan rao
Passing specific snd_soc_card structure depending on the ACPI ID. In future we can add other IDs in the ACPI table and pass the structure. Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> Link: https://lore.kernel.org/r/20200728160255.31020-3-Vishnuvardhanrao.Ravulapati@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: amd: Renaming snd-soc-card structure and fieldsRavulapati Vishnu vardhan rao
As in future our machine driver supports multiple codecs So changing naming convention of snd_soc_card struct and its fields. Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com> Link: https://lore.kernel.org/r/20200728160255.31020-2-Vishnuvardhanrao.Ravulapati@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: samsung: Add sound support for Midas boardsSimon Shields
This patch adds support for voice and BT calls, along with standard audio output via the speaker, earpiece, headphone jack, HDMI, and any accessories compatible with Midas boards. This patch also supports headphone/headset detection and headsets with inline buttons. [m.szyprowski: adaptation to v5.1+ kernels (DAI links initialization)] [s.nawrocki: removal of the clk API calls for CODEC MCLK, the jack data structure moved to struct midas_priv, coding style and typo fixes, conversion to new cpu/codec/dai-node binding] Signed-off-by: Simon Shields <simon@lineageos.org> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200728131111.14334-2-s.nawrocki@samsung.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: samsung: Document DT bindings for Midas sound subsystemSylwester Nawrocki
This patch adds documentation of DT biding for the Midas sound complex. Partially based on the *txt version by Simon Shields <simon@lineageos.org>. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200728131111.14334-1-s.nawrocki@samsung.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: tlv320adcx140: Move device reset to before programmingDan Murphy
Reset the device before programming the registers or all programming will be lost as the device resets registers to default settings. Signed-off-by: Dan Murphy <dmurphy@ti.com> Link: https://lore.kernel.org/r/20200730142419.28205-2-dmurphy@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: tlv320adcx140: Fix GPO register start addressDan Murphy
The header was updated to align with the data sheet to start the GPO_CFG at GPO_CFG0. The code was not updated to the change and therefore the GPO_CFG0 register was not written to. Fixes: 6617cff6a05e ("ASoC: tlv320adcx140: Add GPO configuration and drive output config") Signed-off-by: Dan Murphy <dmurphy@ti.com> Link: https://lore.kernel.org/r/20200730142419.28205-1-dmurphy@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: Intel: KMB: Rework disable channel functionMichael Sit Wei Hong
All channels are enabled at boot up, this patch ensures that all channels are disabled at boot and whenever the function is called. Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com> Reviewed-by: Sia Jee Heng <jee.heng.sia@intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200730055319.1522-3-michael.wei.hong.sit@intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: Intel: KMB: Add 8kHz audio supportMichael Sit Wei Hong
Enable 8kHz audio support for Intel Keem Bay platform. Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com> Reviewed-by: Sia Jee Heng <jee.heng.sia@intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200730055319.1522-2-michael.wei.hong.sit@intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30Merge tag 'pci-v5.8-fixes-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fix from Bjorn Helgaas: "Disable ASPM on ASM1083/1085 PCIe-to-PCI bridge (Robert Hancock)" * tag 'pci-v5.8-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI/ASPM: Disable ASPM on ASMedia ASM1083/1085 PCIe-to-PCI bridge
2020-07-30Merge series "ASoC: meson: tdm fixes" from Jerome Brunet <jbrunet@baylibre.com>:Mark Brown
This patcheset is collection of fixes for the TDM input and output the axg audio architecture. Its fixes: - slave mode format setting - g12 and sm1 skew offset - tdm clock inversion - standard daifmt props names which don't require a specific prefix Jerome Brunet (4): ASoC: meson: axg-tdm-interface: fix link fmt setup ASoC: meson: axg-tdmin: fix g12a skew ASoC: meson: axg-tdm-formatters: fix sclk inversion ASoC: meson: cards: remove DT_PREFIX for standard daifmt properties sound/soc/meson/axg-tdm-formatter.c | 11 ++++++----- sound/soc/meson/axg-tdm-formatter.h | 1 - sound/soc/meson/axg-tdm-interface.c | 26 +++++++++++++++++--------- sound/soc/meson/axg-tdmin.c | 16 +++++++++++++++- sound/soc/meson/axg-tdmout.c | 3 --- sound/soc/meson/meson-card-utils.c | 2 +- 6 files changed, 39 insertions(+), 20 deletions(-) -- 2.25.4
2020-07-30ASoC: soc-core: Fix regression causing sysfs entries to disappearCharles Keepax
The allocation order of things in soc_new_pcm_runtime was changed to move the device_register before the allocation of the rtd structure. This was to allow the rtd allocation to be managed by devm. However currently the sysfs entries are added by device_register and their visibility depends on variables within the rtd structure, this causes the pmdown_time and dapm_widgets sysfs entries to be missing for all rtds. Correct this issue by manually calling device_add_groups after the appropriate information is available. Fixes: d918a37610b1 ("ASoC: soc-core: tidyup soc_new_pcm_runtime() alloc order") Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20200730120715.637-1-ckeepax@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: meson: cards: remove DT_PREFIX for standard daifmt propertiesJerome Brunet
Standard dai format property don't need the "amlogic," prefix. There nothing amlogic specific about them. Just remove it. Fixes: 435857e015dc ("ASoC: meson: align axg card driver with DT bindings documentation") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200729154456.1983396-5-jbrunet@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: meson: axg-tdm-formatters: fix sclk inversionJerome Brunet
After carefully checking, it appears that both tdmout and tdmin require the rising edge of the sclk they get to be synchronized with the frame sync event (which should be a rising edge of lrclk). TDMIN was improperly set before this patch. Remove the sclk_invert quirk which is no longer needed and fix the sclk phase. Fixes: 1a11d88f499c ("ASoC: meson: add tdm formatter base driver") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200729154456.1983396-4-jbrunet@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: meson: axg-tdmin: fix g12a skewJerome Brunet
After carefully checking the result provided by the TDMIN on the g12a and sm1 SoC families, the TDMIN skew offset appears to be 3 instead of 2 on the axg. Fixes: f01bc67f58fd ("ASoC: meson: axg-tdm-formatter: rework quirks settings") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200729154456.1983396-3-jbrunet@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30ASoC: meson: axg-tdm-interface: fix link fmt setupJerome Brunet
The .set_fmt() callback of the axg tdm interface incorrectly test the content of SND_SOC_DAIFMT_MASTER_MASK as if it was a bitfield, which it is not. Implement the test correctly. Fixes: d60e4f1e4be5 ("ASoC: meson: add tdm interface driver") Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Link: https://lore.kernel.org/r/20200729154456.1983396-2-jbrunet@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-30igb: use eth_zero_addr() to clear mac addressMiaohe Lin
Use eth_zero_addr() to clear mac address instead of memset(). Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30ixgbe: use eth_zero_addr() to clear mac addressMiaohe Lin
Use eth_zero_addr() to clear mac address instead of memset(). Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30riscv: fix build warning of mm/pageattrZong Li
Add hearder for missing prototype. Also, static keyword should be at beginning of declaration. Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Fix build warning for mm/initZong Li
Add static keyword for resource_init, this function is only used in this object file. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30RISC-V: Setup exception vector earlyAtish Patra
The trap vector is set only in trap_init which may be too late in some cases. Early ioremap/efi spits many warning messages which may be useful. Setup the trap vector early so that any warning/bug can be handled before generic code invokes trap_init. Signed-off-by: Atish Patra <atish.patra@wdc.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Select ARCH_HAS_DEBUG_VM_PGTABLEEmil Renner Berthing
This allows the pgtable tests to be built. Signed-off-by: Emil Renner Berthing <kernel@esmil.dk> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Use generic pgprot_* macros from <linux/pgtable.h>Pekka Enberg
The <linux/pgtable.h> header now defines generic pgprot_ macros also for the no-MMU configuration, so let's use them. Signed-off-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30mm: pgtable: Make generic pgprot_* macros available for no-MMUPekka Enberg
The <linux/pgtable.h> header defines some generic pgprot_* implementations, but they are only available when CONFIG_MMU is enabled. The RISC-V architecture, for example, therefore defines some of these pgprot_* macros for !NOMMU. Let's make the pgprot_* generic available even for !NOMMU so we can remove the RISC-V specific definitions. Compile-tested with x86 defconfig, and riscv defconfig and !MMU defconfig. Suggested-by: Palmer Dabbelt <palmerdabbelt@google.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Pekka Enberg <penberg@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Cleanup unnecessary define in asm-offset.cGuo Ren
- TASK_THREAD_SP is duplicated define - TASK_STACK is no use at all - Don't worry about thread_info's offset in task_struct, have a look on comment in include/linux/sched.h: struct task_struct { /* * For reasons of header soup (see current_thread_info()), this * must be the first element of task_struct. */ struct thread_info thread_info; Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Add jump-label implementationEmil Renner Berthing
Add jump-label implementation based on the ARM64 version and add CONFIG_JUMP_LABEL=y to the defconfigs. Signed-off-by: Emil Renner Berthing <kernel@esmil.dk> Reviewed-by: Björn Töpel <bjorn.topel@gmail.com> Tested-by: Björn Töpel <bjorn.topel@gmail.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Support R_RISCV_ADD64 and R_RISCV_SUB64 relocsEmil Renner Berthing
These are needed for the __jump_table in modules using static keys/jump-labels with the layout from HAVE_ARCH_JUMP_LABEL_RELATIVE on 64bit kernels. Signed-off-by: Emil Renner Berthing <kernel@esmil.dk> Reviewed-by: Björn Töpel <bjorn.topel@gmail.com> Tested-by: Björn Töpel <bjorn.topel@gmail.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30Replace HTTP links with HTTPS ones: RISC-VAlexander A. Klimov
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Add STACKPROTECTOR supportedGuo Ren
The -fstack-protector & -fstack-protector-strong features are from gcc. The patch only add basic kernel support to stack-protector feature and some arch could have its own solution such as ARM64_PTR_AUTH. After enabling STACKPROTECTOR and STACKPROTECTOR_STRONG, the .text size is expanded from 0x7de066 to 0x81fb32 (only 5%) to add canary checking code. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Fix typo in asm/hwcap.h uapi headerTobias Klauser
s/userpsace/userspace/ Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Add kmemleak supportTobias Klauser
Tested using syzkaller in QEMU's riscv64 virt machine. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Allow building with kcov coverageTobias Klauser
Add ARCH_HAS_KCOV and HAVE_GCC_PLUGINS to the riscv Kconfig. Also disable instrumentation of some early boot code and vdso. Boot-tested on QEMU's riscv64 virt machine. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Enable context trackingGreentime Hu
This patch implements and enables context tracking for riscv (which is a prerequisite for CONFIG_NO_HZ_FULL support) It adds checking for previous state in the entry that all excepttions and interrupts goes to and calls context_tracking_user_exit() if it comes from user space. It also calls context_tracking_user_enter() if it will return to user space before restore_all. This patch is tested with the dynticks-testing testcase in qemu-system-riscv64 virt machine and Unleashed board. git://git.kernel.org/pub/scm/linux/kernel/git/frederic/dynticks-testing.git We can see the log here. The tick got mostly stopped during the execution of the user loop. _-----=> irqs-off / _----=> need-resched | / _---=> hardirq/softirq || / _--=> preempt-depth ||| / delay TASK-PID CPU# |||| TIMESTAMP FUNCTION | | | |||| | | <idle>-0 [001] d..2 604.183512: sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=taskset next_pid=273 next_prio=120 user_loop-273 [001] d.h1 604.184788: hrtimer_expire_entry: hrtimer=000000002eda5fab function=tick_sched_timer now=604176096300 user_loop-273 [001] d.s2 604.184897: workqueue_queue_work: work struct=00000000383402c2 function=vmstat_update workqueue=00000000f36d35d4 req_cpu=1 cpu=1 user_loop-273 [001] dns2 604.185039: tick_stop: success=0 dependency=SCHED user_loop-273 [001] dn.1 604.185103: tick_stop: success=0 dependency=SCHED user_loop-273 [001] d..2 604.185154: sched_switch: prev_comm=taskset prev_pid=273 prev_prio=120 prev_state=R+ ==> next_comm=kworker/1:1 next_pid=46 next_prio=120 <...>-46 [001] .... 604.185194: workqueue_execute_start: work struct 00000000383402c2: function vmstat_update <...>-46 [001] d..2 604.185266: sched_switch: prev_comm=kworker/1:1 prev_pid=46 prev_prio=120 prev_state=I ==> next_comm=taskset next_pid=273 next_prio=120 user_loop-273 [001] d.h1 604.188812: hrtimer_expire_entry: hrtimer=000000002eda5fab function=tick_sched_timer now=604180133400 user_loop-273 [001] d..1 604.189050: tick_stop: success=1 dependency=NONE user_loop-273 [001] d..2 614.251386: sched_switch: prev_comm=user_loop prev_pid=273 prev_prio=120 prev_state=X ==> next_comm=swapper/1 next_pid=0 next_prio=120 <idle>-0 [001] d..2 614.315391: sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=taskset next_pid=276 next_prio=120 Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Support irq_work via self IPIsGreentime Hu
Support for arch_irq_work_raise() and arch_irq_work_has_interrupt() was missing from riscv (a prerequisite for FULL_NOHZ). Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORTGuo Ren
Lockdep is needed by proving the spinlocks and rwlocks. To suupport it, we need fixup TRACE_IRQFLAGS_SUPPORT in kernel/entry.S. This patch follow Documentation/irqflags-tracing.txt. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Fixup lockdep_assert_held with wrong param cpu_runningZong Li
The cpu_running is not a lock-class, it lacks the dep_map member in completion. It causes the error as follow: arch/riscv/kernel/smpboot.c: In function '__cpu_up': ./include/linux/lockdep.h:364:52: error: 'struct completion' has no member named 'dep_map' 364 | #define lockdep_is_held(lock) lock_is_held(&(lock)->dep_map) | ^~ ./include/asm-generic/bug.h:113:25: note: in definition of macro 'WARN_ON' 113 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ ./include/linux/lockdep.h:390:27: note: in expansion of macro 'lockdep_is_held' 390 | WARN_ON(debug_locks && !lockdep_is_held(l)); \ | ^~~~~~~~~~~~~~~ arch/riscv/kernel/smpboot.c:118:2: note: in expansion of macro 'lockdep_assert_held' 118 | lockdep_assert_held(&cpu_running); There are a lot of archs which use cpu_running in smpboot.c (arm, arm64, openrisc, xtensa, s390, x86, mips), but none of them try lockdep_assert_held(&cpu_running.wait.lock). So Just remove it. Signed-off-by: Zong Li <zong.li@sifive.com> Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30riscv: Fixup static_obj() failGuo Ren
When enable LOCKDEP, static_obj() will cause error. Because some __initdata static variables is before _stext: static int static_obj(const void *obj) { unsigned long start = (unsigned long) &_stext, end = (unsigned long) &_end, addr = (unsigned long) obj; /* * static variable? */ if ((addr >= start) && (addr < end)) return 1; [ 0.067192] INFO: trying to register non-static key. [ 0.067325] the code is fine but needs lockdep annotation. [ 0.067449] turning off the locking correctness validator. [ 0.067718] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc7-dirty #44 [ 0.067945] Call Trace: [ 0.068369] [<ffffffe00020323c>] walk_stackframe+0x0/0xa4 [ 0.068506] [<ffffffe000203422>] show_stack+0x2a/0x34 [ 0.068631] [<ffffffe000521e4e>] dump_stack+0x94/0xca [ 0.068757] [<ffffffe000255a4e>] register_lock_class+0x5b8/0x5bc [ 0.068969] [<ffffffe000255abe>] __lock_acquire+0x6c/0x1d5c [ 0.069101] [<ffffffe0002550fe>] lock_acquire+0xae/0x312 [ 0.069228] [<ffffffe000989a8e>] _raw_spin_lock_irqsave+0x40/0x5a [ 0.069357] [<ffffffe000247c64>] complete+0x1e/0x50 [ 0.069479] [<ffffffe000984c38>] rest_init+0x1b0/0x28a [ 0.069660] [<ffffffe0000016a2>] 0xffffffe0000016a2 [ 0.069779] [<ffffffe000001b84>] 0xffffffe000001b84 [ 0.069953] [<ffffffe000001092>] 0xffffffe000001092 static __initdata DECLARE_COMPLETION(kthreadd_done); noinline void __ref rest_init(void) { ... complete(&kthreadd_done); Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-30tasklet: Introduce new initialization APIRomain Perier
Nowadays, modern kernel subsystems that use callbacks pass the data structure associated with a given callback as argument to the callback. The tasklet subsystem remains one which passes an arbitrary unsigned long to the callback function. This has several problems: - This keeps an extra field for storing the argument in each tasklet data structure, it bloats the tasklet_struct structure with a redundant .data field - No type checking can be performed on this argument. Instead of using container_of() like other callback subsystems, it forces callbacks to do explicit type cast of the unsigned long argument into the required object type. - Buffer overflows can overwrite the .func and the .data field, so an attacker can easily overwrite the function and its first argument to whatever it wants. Add a new tasklet initialization API, via DECLARE_TASKLET() and tasklet_setup(), which will replace the existing ones. This work is greatly inspired by the timer_struct conversion series, see commit e99e88a9d2b0 ("treewide: setup_timer() -> timer_setup()") To avoid problems with both -Wcast-function-type (which is enabled in the kernel via -Wextra is several subsystems), and with mismatched function prototypes when build with Control Flow Integrity enabled, this adds the "use_callback" member to let the tasklet caller choose which union member to call through. Once all old API uses are removed, this and the .data member will be removed as well. (On 64-bit this does not grow the struct size as the new member fills the hole after atomic_t, which is also "int" sized.) Signed-off-by: Romain Perier <romain.perier@gmail.com> Co-developed-by: Allen Pais <allen.lkml@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Co-developed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-30treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()Kees Cook
This converts all the existing DECLARE_TASKLET() (and ...DISABLED) macros with DECLARE_TASKLET_OLD() in preparation for refactoring the tasklet callback type. All existing DECLARE_TASKLET() users had a "0" data argument, it has been removed here as well. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-30usb: gadget: udc: Avoid tasklet passing a globalKees Cook
There's no reason for the tasklet callback to set an argument since it always uses a global. Instead, use the global directly, in preparation for converting the tasklet subsystem to modern callback conventions. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org>
2020-07-30RDMA/hns: Fix the unneeded process when getting a general type of CQE errorXi Wang
If the hns ROCEE reports a general error CQE (types not specified by the IB General Specifications), it's no need to change the QP state to error, and the driver should just skip it. Fixes: 7c044adca272 ("RDMA/hns: Simplify the cqe code of poll cq") Link: https://lore.kernel.org/r/1595932941-40613-8-git-send-email-liweihang@huawei.com Signed-off-by: Xi Wang <wangxi11@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-30RDMA/hns: Fix error during modify qp RTS2RTSLang Cheng
One qp state migrations legal configuration was deleted mistakenly. Fixes: 357f34294686 ("RDMA/hns: Simplify the state judgment code of qp") Link: https://lore.kernel.org/r/1595932941-40613-7-git-send-email-liweihang@huawei.com Signed-off-by: Lang Cheng <chenglang@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-30RDMA/hns: Delete unnecessary memset when allocating VF resourceLang Cheng
The hns_roce_cmq_setup_basic_desc() can clear the whole desc, so removes these redundant memset operations. Link: https://lore.kernel.org/r/1595932941-40613-6-git-send-email-liweihang@huawei.com Signed-off-by: Lang Cheng <chenglang@huawei.com> Signed-off-by: Weihang Li <liweihang@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-30Documentation: intel: Replace HTTP links with HTTPS onesAlexander A. Klimov
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30ixgbe: Remove unnecessary usages of memsetSuraj Upadhyay
Replace memsets of 1 byte with simple assignment. Issue found with checkpatch.pl Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30igb: Remove unnecessary usages of memsetSuraj Upadhyay
Replace memsets of 1 byte with simple assignment. Issue found with checkpatch.pl Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30e1000e: Remove unnecessary usages of memsetSuraj Upadhyay
Replace memsets of 1 byte with simple assignments. Issue found with checkpatch.pl Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-07-30e1000: Remove unnecessary usages of memsetSuraj Upadhyay
Replace memsets of 1 byte with simple assignments. Issue reported by checkpatch.pl. Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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