Piecuu/linux-samsung-r9q2
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
linux-samsung-r9q2/include
History
Peter Zijlstra e4df1511e1 cpuidle, sched: Remove instrumentation from TIF_{POLLING_NRFLAG,NEED_RESCHED} 
objtool pointed out that various idle-TIF management methods
have instrumentation:

  vmlinux.o: warning: objtool: mwait_idle+0x5: call to current_set_polling_and_test() leaves .noinstr.text section
  vmlinux.o: warning: objtool: acpi_processor_ffh_cstate_enter+0xc5: call to current_set_polling_and_test() leaves .noinstr.text section
  vmlinux.o: warning: objtool: cpu_idle_poll.isra.0+0x73: call to test_ti_thread_flag() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle+0xbc: call to current_set_polling_and_test() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_irq+0xea: call to current_set_polling_and_test() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_s2idle+0xb4: call to current_set_polling_and_test() leaves .noinstr.text section

  vmlinux.o: warning: objtool: intel_idle+0xa6: call to current_clr_polling() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_irq+0xbf: call to current_clr_polling() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_s2idle+0xa1: call to current_clr_polling() leaves .noinstr.text section

  vmlinux.o: warning: objtool: mwait_idle+0xe: call to __current_set_polling() leaves .noinstr.text section
  vmlinux.o: warning: objtool: acpi_processor_ffh_cstate_enter+0xc5: call to __current_set_polling() leaves .noinstr.text section
  vmlinux.o: warning: objtool: cpu_idle_poll.isra.0+0x73: call to test_ti_thread_flag() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle+0xbc: call to __current_set_polling() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_irq+0xea: call to __current_set_polling() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_s2idle+0xb4: call to __current_set_polling() leaves .noinstr.text section

  vmlinux.o: warning: objtool: cpu_idle_poll.isra.0+0x73: call to test_ti_thread_flag() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_s2idle+0x73: call to test_ti_thread_flag.constprop.0() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_irq+0x91: call to test_ti_thread_flag.constprop.0() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle+0x78: call to test_ti_thread_flag.constprop.0() leaves .noinstr.text section
  vmlinux.o: warning: objtool: acpi_safe_halt+0xf: call to test_ti_thread_flag.constprop.0() leaves .noinstr.text section

Remove the instrumentation, because these methods are used in low-level
cpuidle code moving between states, that should not be instrumented.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195540.988741683@infradead.org
2023-01-13 11:48:16 +01:00
..
acpi More ACPI updates for 6.2-rc1 2022-12-15 10:21:10 -08:00
asm-generic objtool/idle: Validate __cpuidle code as noinstr 2023-01-13 11:48:15 +01:00
clocksource Updates for timers, timekeeping and drivers: 2022-12-12 12:52:02 -08:00
crypto crypto: acomp - define max size for destination 2022-12-09 18:45:00 +08:00
drm Some deferred-io and damage worker reworks revert and make a fb function 2022-12-09 11:53:52 +10:00
dt-bindings remoteproc updates for v6.2 2022-12-21 09:37:14 -08:00
keys
kunit kunit: add macro to allow conditionally exposing static symbols to tests 2022-12-12 14:13:48 -07:00
kvm Merge branch kvm-arm64/pmu-unchained into kvmarm-master/next 2022-12-05 14:38:44 +00:00
linux cpuidle, sched: Remove instrumentation from TIF_{POLLING_NRFLAG,NEED_RESCHED} 2023-01-13 11:48:16 +01:00
math-emu
media Merge tag 'br-v6.2i' of git://linuxtv.org/hverkuil/media_tree into media_stage 2022-12-07 17:58:47 +01:00
memory memory: renesas-rpc-if: Add support for R-Car Gen4 2022-10-18 13:02:58 -04:00
misc cxl: fix typo in comment 2022-11-24 23:12:19 +11:00
net 9p-for-6.2-rc1 2022-12-23 11:39:18 -08:00
pcmcia
ras
rdma RDMA: Extend RDMA kernel verbs ABI to support flush 2022-12-09 19:36:01 -04:00
rv
scsi SCSI misc on 20221222 2022-12-22 11:22:31 -08:00
soc Networking changes for 6.2. 2022-12-13 15:47:48 -08:00
sound ALSA: hda/hdmi: fix stream-id config keep-alive for rt suspend 2022-12-09 12:06:15 +01:00
target scsi: target: core: Send max transfer length in blocks 2022-11-24 02:16:19 +00:00
trace tracing/rseq: Add mm_cid field to rseq_update 2022-12-27 12:52:15 +01:00
uapi sched/membarrier: Introduce MEMBARRIER_CMD_GET_REGISTRATIONS 2023-01-07 11:29:29 +01:00
ufs scsi: ufs: core: Remove check_upiu_size() from ufshcd.h 2022-11-08 03:06:33 +00:00
vdso
video fbdev: omapfb: connector-analog-tv: remove support for platform data 2022-12-14 20:01:49 +01:00
xen xen: fix xen.h build for CONFIG_XEN_PVH=y 2022-12-05 12:59:49 +01:00