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authorPeter Zijlstra <peterz@infradead.org>2023-01-12 22:43:45 +0300
committerIngo Molnar <mingo@kernel.org>2023-01-13 13:48:16 +0300
commit10fdb38cee36b8dc4775e6fe4ad85e78bafdbd65 (patch)
treee11aaf2187ddc03f97e1148418eb410e321bfd2f /drivers
parent10a099405fdf96c3205ae775abf19fcd301b31b4 (diff)
downloadlinux-10fdb38cee36b8dc4775e6fe4ad85e78bafdbd65.tar.xz
cpuidle, nospec: Make mds_idle_clear_cpu_buffers() noinstr clean
objtool found that the mds_idle_clear_cpu_buffers() method got uninlined by the compiler where it called out into instrumentation: vmlinux.o: warning: objtool: mwait_idle+0x47: call to mds_idle_clear_cpu_buffers() leaves .noinstr.text section vmlinux.o: warning: objtool: acpi_processor_ffh_cstate_enter+0xa2: call to mds_idle_clear_cpu_buffers() leaves .noinstr.text section vmlinux.o: warning: objtool: intel_idle+0x91: call to mds_idle_clear_cpu_buffers() leaves .noinstr.text section vmlinux.o: warning: objtool: intel_idle_s2idle+0x8c: call to mds_idle_clear_cpu_buffers() leaves .noinstr.text section vmlinux.o: warning: objtool: intel_idle_irq+0xaa: call to mds_idle_clear_cpu_buffers() leaves .noinstr.text section Solve this by marking mds_idle_clear_cpu_buffers() as __always_inline. 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/20230112195541.233779815@infradead.org
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