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2019-06-25ASoC: rt5677: depop stereo dacCurtis Malainey
Upon enabling the ASRC DAC we need a delay to avoid popping the speakers. Signed-off-by: Curtis Malainey <cujomalainey@chromium.org> Cc: Ross Zwisler <zwisler@chromium.org> Tested-by: Ross Zwisler <zwisler@google.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-25powerpc/64s/exception: Fix machine check early corrupting AMRNicholas Piggin
The early machine check runs in real mode, so locking is unnecessary. Worse, the windup does not restore AMR, so this can result in a false KUAP fault after a recoverable machine check hits inside a user copy operation. Fix this similarly to HMI by just avoiding the kuap lock in the early machine check handler (it will be set by the late handler that runs in virtual mode if that runs). If the virtual mode handler is reached, it will lock and restore the AMR. Fixes: 890274c2dc4c0 ("powerpc/64s: Implement KUAP for Radix MMU") Cc: Russell Currey <ruscur@russell.cc> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2019-06-25mt76: mt7615: do not process rx packets if the device is not initializedLorenzo Bianconi
Fix following crash that occurs when the driver is processing rx packets while the device is not initialized yet $ rmmod mt7615e [ 67.210261] mt7615e 0000:01:00.0: Message -239 (seq 2) timeout $ modprobe mt7615e [ 72.406937] bus=0x1, slot = 0x0, irq=0x16 [ 72.436590] CPU 0 Unable to handle kernel paging request at virtual address 00000004, epc == 8eec4240, ra == 8eec41e0 [ 72.450291] mt7615e 0000:01:00.0: Firmware is not ready for download [ 72.457724] Oops[#1]: [ 72.470494] mt7615e: probe of 0000:01:00.0 failed with error -5 [ 72.474829] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.14.114 #0 [ 72.498702] task: 805769e0 task.stack: 80564000 [ 72.507709] $ 0 : 00000000 00000001 00000000 00000001 [ 72.518106] $ 4 : 8f704dbc 00000000 00000000 8f7046c0 [ 72.528500] $ 8 : 00000024 8045e98c 81210008 11000000 [ 72.538895] $12 : 8fc09f60 00000008 00000019 00000033 [ 72.549289] $16 : 8f704d80 e00000ff 8f0c7800 3c182406 [ 72.559684] $20 : 00000006 8ee615a0 4e000108 00000000 [ 72.570078] $24 : 0000004c 8000cf94 [ 72.580474] $28 : 80564000 8fc09e38 00000001 8eec41e0 [ 72.590869] Hi : 00000001 [ 72.596582] Lo : 00000000 [ 72.602319] epc : 8eec4240 mt7615_mac_fill_rx+0xac/0x494 [mt7615e] [ 72.614953] ra : 8eec41e0 mt7615_mac_fill_rx+0x4c/0x494 [mt7615e] [ 72.627580] Status: 11008403 KERNEL EXL IE [ 72.635899] Cause : 40800008 (ExcCode 02) [ 72.643860] BadVA : 00000004 [ 72.649573] PrId : 0001992f (MIPS 1004Kc) [ 72.657704] Modules linked in: mt7615e pppoe ppp_async pppox ppp_generic nf_conntrack_ipv6 mt76x2e mt76x2_common mt76x02_lib mt7603e mt76 mac80211 iptable_nat ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_mu] [ 72.792717] Process swapper/0 (pid: 0, threadinfo=80564000, task=805769e0, tls=00000000) [ 72.808799] Stack : 8f0c7800 00000800 8f0c7800 8032b874 00000000 40000000 8f704d80 8ee615a0 [ 72.825428] 8dc88010 00000001 8ee615e0 8eec09b0 8dc88010 8032b914 8f3aee80 80567d20 [ 72.842055] 00000000 8ee615e0 40000000 8f0c7800 00000108 8eec9944 00000000 00000000 [ 72.858682] 80508f10 80510000 00000001 80567d20 8ee615a0 00000000 00000000 8ee61c00 [ 72.875308] 8ee61c40 00000040 80610000 80580000 00000000 8ee615dc 8ee61a68 00000001 [ 72.891936] ... [ 72.896793] Call Trace: [ 72.901649] [<8eec4240>] mt7615_mac_fill_rx+0xac/0x494 [mt7615e] [ 72.913602] [<8eec09b0>] mt7615_queue_rx_skb+0xe4/0x12c [mt7615e] [ 72.925734] [<8eec9944>] mt76_dma_cleanup+0x390/0x42c [mt76] [ 72.936988] Code: ae020018 8ea20004 24030001 <94420004> a602002a 8ea20004 90420000 14430003 a2020034 [ 72.956390] [ 72.959676] ---[ end trace f176967739edb19f ]--- Fixes: 04b8e65922f6 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt76x02: fix edcca file permissionLorenzo Bianconi
Use 0600 as edcca file permission in mt76x02 debugfs Fixes: 643749d4a82b ("mt76: mt76x02: disable ED/CCA by default") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7603: add debugfs knob to enable/disable edccaLorenzo Bianconi
Introduce a knob in mt7603 debugfs in order to enable/disable energy detection based on CCA thresholds Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt76x02: run mt76x02_edcca_init atomically in mt76_edcca_setLorenzo Bianconi
Run mt76x02_edcca_init atomically in mt76_edcca_set since it runs concurrently with calibration work and mt76x2_set_channel. Moreover perform phy calibration atomically Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt76x2: move mutex_lock inside mt76x2_set_channelLorenzo Bianconi
This is a preliminary patch to run mt76x02_edcca_init atomically Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt76x2u: remove mt76x02_edcca_init in mt76x2u_set_channelLorenzo Bianconi
Remove mt76x02_edcca_init in mt76x2u_set_channel since it is already run by mt76x2u_phy_channel_calibrate performing channel calibration Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt76x02: remove enable from mt76x02_edcca_init signatureLorenzo Bianconi
Remove enable parameter from mt76x02_edcca_init routine signature since it is always true Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7615: add static qualifier to mt7615_rx_poll_completeLorenzo Bianconi
Make mt7615_rx_poll_complete static since it is used just in pci.c to initialize rx_poll_complete function pointer Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7615: rearrange cleanup operations in mt7615_unregister_deviceLorenzo Bianconi
Cleanup tx/rx napi before releasing pending idrs. Moreover unmap txwi_cache running mt76_free_device routine Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7603: stop mac80211 queues before setting the channelLorenzo Bianconi
Suspend data transmission during channel switch Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: run __mt76_mcu_send_msg in mt7615_mcu_send_firmwareLorenzo Bianconi
Run __mt76_mcu_send_msg instead of __mt7615_mcu_msg_send and remove duplicated code. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: init mcu_restart function pointerLorenzo Bianconi
Use common function wrapper in mt7615_mcu_exit since the code is shared with m7603 driver Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: initialize mt76_mcu_ops data structureLorenzo Bianconi
Use __mt76_mcu_send_msg wrapper instead of mt7615_mcu_msg_send. This is a preliminary patch for mt7615-mt7603 mcu code unification Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: use standard signature for mt7615_mcu_msg_sendLorenzo Bianconi
Use mt76 common signature for mt7615_mcu_msg_send. Move skb allocation in mt7615_mcu_msg_send and remove duplicated code. Remove __mt7615_mcu_set_wtbl and __mt7615_mcu_set_sta_rec since now are used just to send mcu msgs. This is a preliminary patch for mt7615-mt7603 mcu code unification Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: remove unused structure in mcu.hLorenzo Bianconi
Remove following struct no longer used: - dev_info - bss_info - bss_info_tag_handler Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: do not use function pointers whenever possibleLorenzo Bianconi
Remove function pointers in mt7615_mcu_set_bss_info and run function directly. Moreover remove __mt7615_mcu_set_bss_info since it is run just by mt7615_mcu_set_bss_info and remove duplicated istructions Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: unify __mt7615_mcu_set_dev_info and mt7615_mcu_set_dev_infoLorenzo Bianconi
Unify mt7615_mcu_set_dev_info and __mt7615_mcu_set_dev_info since the latter is run just by mt7615_mcu_set_dev_info Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: remove skb_ret from mt7615_mcu_msg_sendLorenzo Bianconi
Remove skb_ret parameter from mt7615_mcu_msg_send signature since it is actually used just by mt7615_mcu_patch_sem_ctrl. This is a prelimanry patch to use mt76 common mcu API Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: remove dest from mt7615_mcu_msg_send signatureLorenzo Bianconi
Remove dest parameter from mt7615_mcu_msg_send/__mt7615_mcu_msg_send routine signature since it can is always set to MCU_S2D_H2N Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: remove query from mt7615_mcu_msg_send signatureLorenzo Bianconi
Remove query parameter from mt7615_mcu_msg_send routine signature since it can be obtained from cmd value Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: remove unused parameter in mt7615_mcu_del_wtblLorenzo Bianconi
Remove unused vif parameter in mt7615_mcu_del_wtbl signature Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: unify mt7615_mcu_add_wtbl_bmc and mt7615_mcu_del_wtbl_bmcLorenzo Bianconi
Remove duplicated code in mt7615_bss_info_changed Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: use proper msg size in mt7615_mcu_add_wtblLorenzo Bianconi
Use proper mcu message size in mt7615_mcu_add_wtbl and do not allocate a huge buffer. Moreover use stack memory instead of heap one Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: use proper msg size in mt7615_mcu_add_wtbl_bmcLorenzo Bianconi
Use proper mcu message size in mt7615_mcu_add_wtbl_bmc and do not allocate a huge buffer. Moreover use stack memory instead of heap one Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: remove bss_info_convert_vif_type routineLorenzo Bianconi
Remove bss_info_convert_vif_type routine since it is run just in mt7615_mcu_set_bss_info and the switch over vif->type is already there. Simplify mt7615_mcu_set_bss_info routine Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: simplify __mt7615_mcu_set_sta_recLorenzo Bianconi
Do not loop over cmd payload in __mt7615_mcu_set_sta_rec since it is already done in before running __mt7615_mcu_set_sta_rec (e.g. mt7615_mcu_set_sta_rec) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt7615: mcu: simplify __mt7615_mcu_set_wtblLorenzo Bianconi
Do not loop over cmd payload in __mt7615_mcu_set_wtbl since it is already done in before running __mt7615_mcu_set_wtbl (e.g. mt7615_mcu_set_wtbl_key) Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7615: Make mt7615_irq_handler staticYueHaibing
Fix sparse warning: drivers/net/wireless/mediatek/mt76/mt7615/pci.c:37:13: warning: symbol 'mt7615_irq_handler' was not declared. Should it be static? Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7615: Use after free in mt7615_mcu_set_bcn()Dan Carpenter
We dereference "skb" when we assign: req.pkt_len = cpu_to_le16(MT_TXD_SIZE + skb->len); ^^^^^^^^ So this patch just moves the dev_kfree_skb() down a bit to avoid the use after free. Fixes: 04b8e65922f6 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: Fix a signedness bug in mt7615_add_interface()Dan Carpenter
The problem is that "mvif->omac_idx" is a u8 so it can't be negative and the error handling won't work. The get_omac_idx() function returns -1 on error. Fixes: 04b8e65922f6 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: move netif_napi_del in mt76_dma_cleanupLorenzo Bianconi
Move netif_napi_del in mt76_dma_cleanup routine since it is done by all drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7615: use napi polling for tx cleanupLorenzo Bianconi
This allows tx scheduling and tx cleanup to run concurrently Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt7603: use napi polling for tx cleanupLorenzo Bianconi
This allows tx scheduling and tx cleanup to run concurrently Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: move tx_napi in mt76_devLorenzo Bianconi
Move tx_napi in mt76_dev data structure in order to implement concurrency between tx scheduling and tx cleanup in mt7603 and mt7615 drivers Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25mt76: mt76x02: remove useless return in mt76x02_resync_beacon_timerLorenzo Bianconi
Remove useless return statment in mt76x02_resync_beacon_timer routine Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
2019-06-25arm64: defconfig: enable CONFIG_RANDOMIZE_BASENick Desaulniers
For testing coverage and improved defense in depth, enable KASLR by default. Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Will Deacon <will@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Suggested-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Olof Johansson <olof@lixom.net> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-25arm64: ARM64_MODULES_PLTS must depend on MODULESCatalin Marinas
Otherwise, selecting it without MODULES leads to build failures. Fixes: 58557e486f89 ("arm64: Allow user selection of ARM64_MODULE_PLTS") Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-25x86/alternatives: Add int3_emulate_call() selftestPeter Zijlstra
Given that the entry_*.S changes for this functionality are somewhat tricky, make sure the paths are tested every boot, instead of on the rare occasion when we trip an INT3 while rewriting text. Requested-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25x86/stackframe/32: Allow int3_emulate_push()Peter Zijlstra
Now that x86_32 has an unconditional gap on the kernel stack frame, the int3_emulate_push() thing will work without further changes. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25x86/stackframe/32: Provide consistent pt_regsPeter Zijlstra
Currently pt_regs on x86_32 has an oddity in that kernel regs (!user_mode(regs)) are short two entries (esp/ss). This means that any code trying to use them (typically: regs->sp) needs to jump through some unfortunate hoops. Change the entry code to fix this up and create a full pt_regs frame. This then simplifies various trampolines in ftrace and kprobes, the stack unwinder, ptrace, kdump and kgdb. Much thanks to Josh for help with the cleanups! Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25x86/stackframe, x86/ftrace: Add pt_regs frame annotationsPeter Zijlstra
When CONFIG_FRAME_POINTER, we should mark pt_regs frames. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25x86/stackframe, x86/kprobes: Fix frame pointer annotationsPeter Zijlstra
The kprobe trampolines have a FRAME_POINTER annotation that makes no sense. It marks the frame in the middle of pt_regs, at the place of saving BP. Change it to mark the pt_regs frame as per the ENCODE_FRAME_POINTER from the respective entry_*.S. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25x86/stackframe: Move ENCODE_FRAME_POINTER to asm/frame.hPeter Zijlstra
In preparation for wider use, move the ENCODE_FRAME_POINTER macros to a common header and provide inline asm versions. These macros are used to encode a pt_regs frame for the unwinder; see unwind_frame.c:decode_frame_pointer(). Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25x86/entry/32: Clean up return from interrupt preemption pathPeter Zijlstra
The code flow around the return from interrupt preemption point seems needlessly complicated. There is only one site jumping to resume_kernel, and none (outside of resume_kernel) jumping to restore_all_kernel. Inline resume_kernel in restore_all_kernel and avoid the CONFIG_PREEMPT dependent label. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25Merge tag 'v5.2-rc6' into x86/asm, to refresh the branchIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25locking/lockdep: increase size of counters for lockdep statisticsKobe Wu
When system has been running for a long time, signed integer counters are not enough for some lockdep statistics. Using unsigned long counters can satisfy the requirement. Besides, most of lockdep statistics are unsigned. It is better to use unsigned int instead of int. Remove unused variables. - max_recursion_depth - nr_cyclic_check_recursions - nr_find_usage_forwards_recursions - nr_find_usage_backwards_recursions Signed-off-by: Kobe Wu <kobe-cp.wu@mediatek.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <linux-mediatek@lists.infradead.org> Cc: <wsd_upstream@mediatek.com> Cc: Eason Lin <eason-yh.lin@mediatek.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Link: https://lkml.kernel.org/r/1561365348-16050-1-git-send-email-kobe-cp.wu@mediatek.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25locking/atomics: Use sed(1) instead of non-standard head(1) optionMichael Forney
POSIX says the -n option must be a positive decimal integer. Not all implementations of head(1) support negative numbers meaning offset from the end of the file. Instead, the sed expression '$d' has the same effect of removing the last line of the file. Signed-off-by: Michael Forney <mforney@mforney.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190618053306.730-1-mforney@mforney.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-25locking/lockdep: Move mark_lock() inside CONFIG_TRACE_IRQFLAGS && ↵Arnd Bergmann
CONFIG_PROVE_LOCKING The last cleanup patch triggered another issue, as now another function should be moved into the same section: kernel/locking/lockdep.c:3580:12: error: 'mark_lock' defined but not used [-Werror=unused-function] static int mark_lock(struct task_struct *curr, struct held_lock *this, Move mark_lock() into the same #ifdef section as its only caller, and remove the now-unused mark_lock_irq() stub helper. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Bart Van Assche <bvanassche@acm.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yuyang Du <duyuyang@gmail.com> Fixes: 0d2cc3b34532 ("locking/lockdep: Move valid_state() inside CONFIG_TRACE_IRQFLAGS && CONFIG_PROVE_LOCKING") Link: https://lkml.kernel.org/r/20190617124718.1232976-1-arnd@arndb.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
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