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2019-03-24timer: Move trace point to get proper indexAnna-Maria Gleixner1-9/+4
When placing the timer_start trace point before the timer wheel bucket index is calculated, the index information in the trace point is useless. It is not possible to simply move the debug_activate() call after the index calculation, because debug_object_activate() needs to be called before touching the object. Therefore split debug_activate() and move the trace point into enqueue_timer() after the new index has been calculated. The debug_object_activate() call remains at the original place. Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: peterz@infradead.org Cc: Steven Rostedt <rostedt@goodmis.org> Link: https://lkml.kernel.org/r/20190321120921.16463-3-anna-maria@linutronix.de
2019-03-24tick/sched: Update tick_sched struct documentationAnna-Maria Gleixner1-3/+10
Adapt the documentation order of struct members to the effective order of struct members and add missing descriptions. Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: peterz@infradead.org Link: https://lkml.kernel.org/r/20190321120921.16463-2-anna-maria@linutronix.de
2019-03-23tick: Remove outgoing CPU from broadcast masksThomas Gleixner5-27/+49
Valentin reported that unplugging a CPU occasionally results in a warning in the tick broadcast code which is triggered when an offline CPU is in the broadcast mask. This happens because the outgoing CPU is not removing itself from the broadcast masks, especially not from the broadcast_force_mask. The removal happens on the control CPU after the outgoing CPU is dead. It's a long standing issue, but the warning is harmless. Rework the hotplug mechanism so that the outgoing CPU removes itself from the broadcast masks after disabling interrupts and removing itself from the online mask. Reported-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Valentin Schneider <valentin.schneider@arm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1903211540180.1784@nanos.tec.linutronix.de
2019-03-23timekeeping: Consistently use unsigned int for seqcount snapshotRasmus Villemoes5-14/+15
The timekeeping code uses a random mix of "unsigned long" and "unsigned int" for the seqcount snapshots (ratio 14:12). Since the seqlock.h API is entirely based on unsigned int, use that throughout. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Stephen Boyd <sboyd@kernel.org> Link: https://lkml.kernel.org/r/20190318195557.20773-1-linux@rasmusvillemoes.dk
2019-03-22softirq: Remove tasklet_hrtimerThomas Gleixner2-76/+0
There are no more users of this interface. Remove it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Link: https://lkml.kernel.org/r/20190301224821.29843-4-bigeasy@linutronix.de
2019-03-22xfrm: Replace hrtimer tasklet with softirq hrtimerThomas Gleixner2-13/+19
Switch the timer to HRTIMER_MODE_SOFT, which executed the timer callback in softirq context and remove the hrtimer_tasklet. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Link: https://lkml.kernel.org/r/20190301224821.29843-3-bigeasy@linutronix.de
2019-03-22mac80211_hwsim: Replace hrtimer tasklet with softirq hrtimerThomas Gleixner1-25/+21
Switch the timer to HRTIMER_MODE_REL_SOFT, which executed the timer callback in softirq context and remove the hrtimer_tasklet. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: David S. Miller <davem@davemloft.net> Cc: netdev@vger.kernel.org Cc: linux-wireless@vger.kernel.org Cc: Kalle Valo <kvalo@codeaurora.org> Link: https://lkml.kernel.org/r/20190301224821.29843-2-bigeasy@linutronix.de
2019-03-17Linux 5.1-rc1Linus Torvalds1-2/+2
2019-03-17perf/x86/intel: Make dev_attr_allow_tsx_force_abort statickbuild test robot1-1/+1
Fixes: 400816f60c54 ("perf/x86/intel: Implement support for TSX Force Abort") Signed-off-by: kbuild test robot <lkp@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: kbuild-all@01.org Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20190313184243.GA10820@lkp-sb-ep06
2019-03-17kconfig: remove stale lxdialog/.gitignoreMasahiro Yamada1-4/+0
When this .gitignore was added, lxdialog was an independent hostprogs-y. Now that all objects in lxdialog/ are directly linked to mconf, the lxdialog is no longer generated. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: force all architectures except um to include mandatory-yMasahiro Yamada29-47/+18
Currently, every arch/*/include/uapi/asm/Kbuild explicitly includes the common Kbuild.asm file. Factor out the duplicated include directives to scripts/Makefile.asm-generic so that no architecture would opt out of the mandatory-y mechanism. um is not forced to include mandatory-y since it is a very exceptional case which does not support UAPI. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: warn redundant generic-yMasahiro Yamada12-13/+6
The generic-y is redundant under the following condition: - arch has its own implementation - the same header is added to generated-y - the same header is added to mandatory-y If a redundant generic-y is found, the warning like follows is displayed: scripts/Makefile.asm-generic:20: redundant generic-y found in arch/arm/include/asm/Kbuild: timex.h I fixed up arch Kbuild files found by this. Suggested-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17Revert "modsign: Abort modules_install when signing fails"Douglas Anderson1-1/+1
This reverts commit caf6fe91ddf62a96401e21e9b7a07227440f4185. The commit was fine but is no longer needed as of commit 3a2429e1faf4 ("kbuild: change if_changed_rule for multi-line recipe"). Let's go back to using ";" to be consistent. For some discussion, see: https://lkml.kernel.org/r/CAK7LNASde0Q9S5GKeQiWhArfER4S4wL1=R_FW8q0++_X3T5=hQ@mail.gmail.com Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: Make NOSTDINC_FLAGS a simply expanded variableDouglas Anderson1-1/+1
During a simple no-op (nothing changed) build I saw 39 invocations of the C compiler with the argument "-print-file-name=include". We don't need to call the C compiler 39 times for this--one time will suffice. Let's change NOSTDINC_FLAGS to a simply expanded variable to avoid this since there doesn't appear to be any reason it should be recursively expanded. On my build this shaved ~400 ms off my "no-op" build. Note that the recursive expansion seems to date back to the (really old) commit e8f5bdb02ce0 ("[PATCH] Makefile include path ordering"). It's a little unclear to me if the point of that patch was to switch the variable to be recursively expanded (which it did) or to avoid directly assigning to NOSTDINC_FLAGS (AKA to switch to +=) because someone else (out of tree?) was setting it. I presume later since if the only goal was to switch to recursive expansion the patch would have just removed the ":". Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-03-17kbuild: deb-pkg: avoid implicit effectsArseny Maslennikov1-1/+4
* The man page for dpkg-source(1) notes: > -b, --build directory [format-specific-parameters] > Build a source package (--build since dpkg 1.17.14). > <...> > > dpkg-source will build the source package with the first > format found in this ordered list: the format indicated > with the --format command line option, the format > indicated in debian/source/format, “1.0”. The fallback > to “1.0” is deprecated and will be removed at some point > in the future, you should always document the desired > source format in debian/source/format. See section > SOURCE PACKAGE FORMATS for an extensive description of > the various source package formats. Thus it would be more foolproof to explicitly use 1.0 (as we always did) than to rely on dpkg-source's defaults. * In a similar vein, debian/rules is not made executable by mkdebian, and dpkg-source warns about that but still silently fixes the file. Let's be explicit once again. Signed-off-by: Arseny Maslennikov <ar@cs.msu.ru> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>