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2018-09-10tty: hvc: hvc_write() fix break conditionNicholas Piggin
Commit 550ddadcc758 ("tty: hvc: hvc_write() may sleep") broke the termination condition in case the driver stops accepting characters. This can result in unnecessary polling of the busy driver. Restore it by testing the hvc_push return code. Tested-by: Matteo Croce <mcroce@redhat.com> Tested-by: Jason Gunthorpe <jgg@mellanox.com> Tested-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10tty: hvc: hvc_poll() fix read loop batchingNicholas Piggin
Commit ec97eaad1383 ("tty: hvc: hvc_poll() break hv read loop") removes get_chars batching entirely, which slows down large console operations like paste -- virtio console "feels worse than a 9600 baud serial line," reports Matteo. This adds back batching in a more latency friendly way. If the caller can sleep then we try to fill the entire flip buffer, releasing the lock and scheduling between each iteration. If it can not sleep, then batches are limited to 128 bytes. Matteo confirms this fixes the performance problem. Latency testing the powerpc OPAL console with OpenBMC UART with a large paste shows about 0.25ms latency, which seems reasonable. 10ms latencies were typical for this case before the latency breaking work, so we still see most of the benefit. kopald-1204 0d.h. 5us : hvc_poll <-hvc_handle_interrupt kopald-1204 0d.h. 5us : __hvc_poll <-hvc_handle_interrupt kopald-1204 0d.h. 5us : _raw_spin_lock_irqsave <-__hvc_poll kopald-1204 0d.h. 5us : tty_port_tty_get <-__hvc_poll kopald-1204 0d.h. 6us : _raw_spin_lock_irqsave <-tty_port_tty_get kopald-1204 0d.h. 6us : _raw_spin_unlock_irqrestore <-tty_port_tty_get kopald-1204 0d.h. 6us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 7us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 7us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 36us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 36us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 36us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 65us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 65us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 66us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 94us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 95us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 95us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 124us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 124us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 125us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 154us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 154us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 154us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 183us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 184us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 184us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 213us : tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 213us : __tty_buffer_request_room <-__hvc_poll kopald-1204 0d.h. 213us+: opal_get_chars <-__hvc_poll kopald-1204 0d.h. 242us : _raw_spin_unlock_irqrestore <-__hvc_poll kopald-1204 0d.h. 242us : tty_flip_buffer_push <-__hvc_poll kopald-1204 0d.h. 243us : queue_work_on <-tty_flip_buffer_push kopald-1204 0d.h. 243us : tty_kref_put <-__hvc_poll kopald-1204 0d.h. 243us : hvc_kick <-hvc_handle_interrupt kopald-1204 0d.h. 243us : wake_up_process <-hvc_kick kopald-1204 0d.h. 244us : try_to_wake_up <-hvc_kick kopald-1204 0d.h. 244us : _raw_spin_lock_irqsave <-try_to_wake_up kopald-1204 0d.h. 244us : _raw_spin_unlock_irqrestore <-try_to_wake_up Reported-by: Matteo Croce <mcroce@redhat.com> Tested-by: Matteo Croce <mcroce@redhat.com> Tested-by: Jason Gunthorpe <jgg@mellanox.com> Tested-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10tty: hvc: hvc_poll() fix read loop hangNicholas Piggin
Commit ec97eaad1383 ("tty: hvc: hvc_poll() break hv read loop") causes the virtio console to hang at times (e.g., if you paste a bunch of characters to it. The reason is that get_chars must return 0 before we can be sure the driver will kick or poll input again, but this change only scheduled a poll if get_chars had returned a full count. Change this to poll on any > 0 count. Reported-by: Matteo Croce <mcroce@redhat.com> Reported-by: Jason Gunthorpe <jgg@mellanox.com> Tested-by: Matteo Croce <mcroce@redhat.com> Tested-by: Jason Gunthorpe <jgg@mellanox.com> Tested-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move tcp_ack_filter algo related variables to 'wilc_vif' ↵Ajay Singh
struct Avoid use of static variables and move them as part of wilc_vif struct. Move all the parameters related to tcp_ack_filter algo to wilc_vif struct. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: use lowercase for get_BSSID() and HIL variableAjay Singh
Cleanup patch to use lowercase name for get_BSSID() and HIL variable. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: refactor tcp_process() to avoid extra leading tabsAjay Singh
Refactor tcp_process() to avoid unnecessary leading tabs in the function. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move 'rcv_assoc_resp' as part of hif_drvAjay Singh
Avoid use of static variable and move 'rcv_assoc_resp' as part of 'hif_drv' struct. Rename from 'rcv_assoc_resp' to 'assoc_resp'. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: rename 'dummy_statistics' variable to 'periodic_stat'Ajay Singh
Cleanup patch to use appropriate variable name to fetch the periodic statistics. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move 'periodic_rssi' as part of 'wilc_vif' structAjay Singh
Refactor code to move 'periodic_rssi' as part of wilc_vif struct. Move 'dummy_statistics' from 'wilc' struct to 'wilc_vif' to maintain for each interface separately. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move hif_workqueue static variables to 'wilc' structureAjay Singh
Avoid use of static variable hif_workqueue and move it inside 'wilc' structure. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: refactor code to avoid use of wilc_set_multicast_list globalAjay Singh
Refactor the code to avoid use of 'wilc_set_multicast_list' global variable. Allocate the memory required to keep the multicast mac address and pass it to the worker thread. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move static variable clients_count to 'wilc' structureAjay Singh
Avoid use of static variable 'clients_count' and move it part of 'wilc' structure. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: avoid use of extra 'if' condition in wilc_init()Ajay Singh
Cleanup patch to avoid the avoid extra 'if' condition and clubbed the same condition in single 'if' block. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: remove unused variable 'op_ifcs'Ajay Singh
After code refactor in previous commit now 'op_ifcs' is not require any more, so remove it. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move during_ip_timer & wilc_optaining_ip to 'wilc_vif' structAjay Singh
Move global variable 'wilc_during_ip_timer' and 'wilc_optaining_ip' to 'wilc_vif' structure. Rename these variables like below wilc_during_ip_timer -> during_ip_timer wilc_optaining_ip -> obtaining_ip. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: moved last_scanned_shadow & last_scanned_cnt to wilc_priv ↵Ajay Singh
struct Avoid use of static variables and moved the varibles as part of private data. last_scanned_shadow & last_scanned_cnt variable is moved to 'wilc_priv' to maintain for each interface. After moving static variable, clear_shadow_scan() doesn't require check 'op_ifcs' count as now for each interface the againg timer is initiated. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: remove unnecessary NULL check in clear_shadow_scan()Ajay Singh
Cleanup patch to remove the unnecessary NULL check before freeing up ies information in clear_shadow_scan(). Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: fix to use correct index to free scanned info in ↵Ajay Singh
clear_shadow_scan() Fixes to use correct index to free the allocated memory for ies information. The check was done using 'last_scanned_cnt' index and its not correct, so use the correct index ('i') to check for before freeing the allocated memory. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move 'aging_timer' static variable to wilc_priv structAjay Singh
Moved 'aging_timer' to wilc_priv struct instead of having it as static variable. As 'aging_timer' is maintained for each interfaces so 'op_ifcs' check is not required before the timer_setup() and del_timer_sync() call. Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: wilc1000: move 'wilc_enable_ps' global variable into 'wilc' structAjay Singh
Instead of having 'wilc_enable_ps' as global variable moved it to 'wilc' structure. Rename 'wilc_enable_ps' to 'enable_ps' as its already part of 'wilc' structure Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: rtl8723bs: check for i out of range before accessing szLine[i]Colin Ian King
Currently szLine[i] is being accessed before the index i is being ranged checked. Fix this by checking the range first. Also, evaluate the length of the string szLine just once rather than multiple times and move the loop variable i to an inner scope and make it an int. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10Staging: rtl8712: Add space between else and opening braceAndré Lehmann
issue found by checkpatch Signed-off-by: André Lehmann <lenneman@web.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: rtl8192u: ieee80221: Add missing spaceSidong Yang
Fix checkpatch.pl errors that missing space before ','. Signed-off-by: Sidong Yang <realwakka@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Remove typedef from enum opt_rst_type_e - StyleJohn Whitmore
Remove the typedef directive from enumerated type opt_rst_type_e, this change clears the checkpatch issue with defining new types in the code. This is a coding style change which should not impact runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Remove typedef from firmware_init_step_e - StyleJohn Whitmore
Remove the typedef directive from enumerated type firmware_init_step_e this clears the checkpatch issue with adding new types to the code. This is a coding style change which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Refactor GET_COMMAND_PACKET_FRAG_THRESHOLD - StyleJohn Whitmore
The MACRO GET_COMMAND_PACKET_FRAG_THRESHOLD causes a number of checkpatch issues so has been refactored to use braces around the parameter 'v' to avoid precedence issues, and to add spaces around operators. These changes are coding style changes which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Remove unused RTL8190_CPU_START_OFFSET - StyleJohn Whitmore
The defined constant RTL8190_CPU_START_OFFSET is not used in the code so has been removed. This is a coding style change which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Fix space characters - StyleJohn Whitmore
Fix the spacing issues, remove space after cast operation, and replace spaces at start of line with tab. These changes are purely coding style changes to resolve checkpatch issues. There should be no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Refactor RT_TRACE - StyleJohn Whitmore
Refactor the MACRO RT_TRACE to add parentheses around the parameter 'component', this clears the checkpatch warning with respect to precedence issues. This is a coding style change which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Rename Rx_Smooth_Factor - StyleJohn Whitmore
Rename the MACRO Rx_Smooth_Factor to RX_SMOOTH_FACTOR, this clears the checkpatch issue with CamelCase naming. This is a coding style change which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Rename RTL819xU_MODULE_NAME - StyleJohn Whitmore
Rename the MACRO RTL819xU_MODULE_NAME to RTL819XU_MODULE_NAME, this clears the checkpatch issue with CamelCase naming. This is a coding style change which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Add SPDX-License-Identifier - StyleJohn Whitmore
Add SPDX-License-Identifier tag to the start of header file. This is a coding style change which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Remove unused functions - StyleJohn Whitmore
Remove unused function declarations. This is a coding style change which should have no impact on runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Remove read_cam() - StyleJohn Whitmore
Remove the function read_cam(), as it is unused in code. Simple style change which should not impact runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging:rtl8192u: Remove write_cam() - StyleJohn Whitmore
Remove the function write_cam() as it is unused. Simple style change which should not impact runtime code execution. Signed-off-by: John Whitmore <johnfwhitmore@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10Staging: rtlwifi: efuse: Fixed a line length code styling issue.Tom Todd
Fixed a code styling issue. Signed-off-by: Tom Todd <thomas.m.a.todd@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: mt7621-mmc: Fix debug macro ERR_MSG and its usagesNishad Kamdar
Replace all usages of ERR_MSG with with dev_<level> without __func__ or __LINE__ or current->comm and current->pid. Remove the do {} while(0) loop for the single statement macro. Delete commented ERR_MSG() usage. Drop ERR_MSG from dbg.h. Issue found by checkpatch. Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: mt7621-mmc: Delete N_MSG() and all its usersNishad Kamdar
This patch removes N_MSG() and all its users since it is a no-op. Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging/vboxvideo: Replace ttm_bo_unref with ttm_bo_putThomas Zimmermann
The function ttm_bo_put releases a reference to a TTM buffer object. The function's name is more aligned to the Linux kernel convention of naming ref-counting function _get and _put. A call to ttm_bo_unref takes the address of the TTM BO object's pointer and clears the pointer's value to NULL. This is not necessary in most cases and sometimes even worked around by the calling code. A call to ttm_bo_put only releases the reference without clearing the pointer. The current behaviour of cleaning the pointer is kept in the calling code, but should be removed if not required in a later patch. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10Merge branch 'nvme-4.19' of git://git.infradead.org/nvme into for-linusJens Axboe
Pull single NVMe fix from Christoph. * 'nvme-4.19' of git://git.infradead.org/nvme: nvmet-rdma: fix possible bogus dereference under heavy load
2018-09-10x86/doc: Fix Documentation/x86/earlyprintk.txtRandy Dunlap
Fix a few issues in Documentation/x86/earlyprintk.txt: - correct typos, punctuation, missing word, wrong word - change product name from Netchip to NetChip - expand where to add "earlyprintk=dbg" Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yinghai Lu <yinghai@kernel.org> Cc: linux-doc@vger.kernel.org Cc: linux-usb@vger.kernel.org Link: http://lkml.kernel.org/r/d0c40ac3-7659-6374-dbda-23d3d2577f30@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10perf/core: Force USER_DS when recording user stack dataYabin Cui
Perf can record user stack data in response to a synchronous request, such as a tracepoint firing. If this happens under set_fs(KERNEL_DS), then we end up reading user stack data using __copy_from_user_inatomic() under set_fs(KERNEL_DS). I think this conflicts with the intention of using set_fs(KERNEL_DS). And it is explicitly forbidden by hardware on ARM64 when both CONFIG_ARM64_UAO and CONFIG_ARM64_PAN are used. So fix this by forcing USER_DS when recording user stack data. Signed-off-by: Yabin Cui <yabinc@google.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: <stable@vger.kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 88b0193d9418 ("perf/callchain: Force USER_DS when invoking perf_callchain_user()") Link: http://lkml.kernel.org/r/20180823225935.27035-1-yabinc@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10locking/ww_mutex: Fix spelling mistake "cylic" -> "cyclic"Colin Ian King
Trivial fix to spelling mistake in pr_err() error message Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kernel-janitors@vger.kernel.org Link: http://lkml.kernel.org/r/20180824112235.8842-1-colin.king@canonical.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10locking/lockdep: Delete unnecessary #includeBen Hutchings
Commit: c3bc8fd637a9 ("tracing: Centralize preemptirq tracepoints and unify their usage") added the inclusion of <trace/events/preemptirq.h>. liblockdep doesn't have a stub version of that header so now fails to build. However, commit: bff1b208a5d1 ("tracing: Partial revert of "tracing: Centralize preemptirq tracepoints and unify their usage"") removed the use of functions declared in that header. So delete the #include. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <alexander.levin@verizon.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Fixes: bff1b208a5d1 ("tracing: Partial revert of "tracing: Centralize ...") Fixes: c3bc8fd637a9 ("tracing: Centralize preemptirq tracepoints ...") Link: http://lkml.kernel.org/r/20180828203315.GD18030@decadent.org.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10tools/lib/lockdep: Add dummy task_struct state memberSasha Levin
Commit: 8cc05c71ba5f ("locking/lockdep: Move sanity check to inside lockdep_print_held_locks()") added accesses to the task_struct's state member. Add dummy userspace declaration. Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <Alexander.Levin@microsoft.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180813190527.16853-4-alexander.levin@microsoft.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10tools/lib/lockdep: Add empty nmi.hSasha Levin
Required since: 88f1c87de11a8 ("locking/lockdep: Avoid triggering hardlockup from debug_show_all_locks()") Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <Alexander.Levin@microsoft.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180813190527.16853-3-alexander.levin@microsoft.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10tools/lib/lockdep: Update Sasha Levin email to MSFTSasha Levin
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sasha Levin <Alexander.Levin@microsoft.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20180813190527.16853-2-alexander.levin@microsoft.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2018-09-10ovl: fix oopses in ovl_fill_super() failure pathsMiklos Szeredi
ovl_free_fs() dereferences ofs->workbasedir and ofs->upper_mnt in cases when those might not have been initialized yet. Fix the initialization order for these fields. Reported-by: syzbot+c75f181dc8429d2eb887@syzkaller.appspotmail.com Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Cc: <stable@vger.kernel.org> # v4.15 Fixes: 95e6d4177cb7 ("ovl: grab reference to workbasedir early") Fixes: a9075cdb467d ("ovl: factor out ovl_free_fs() helper")
2018-09-10staging: wlan-ng: remove redundant code in "#if 0" blocksTim Collier
Remove two blocks of code that checkpatch identified as redundant because they were enclosed in "#if...#endif". In the case of prism2fw.c the associated "TODO" comment was retained. Signed-off-by: Tim Collier <osdevtc@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10staging: rtl8188eu: remove unnecessary parenthesesMichael Straube
Remove unnecessary parentheses to follow kernel coding style and clean checkpatch issues. Signed-off-by: Michael Straube <straube.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit (git 2.34.1) at 2025-09-13 23:13:47 +0000