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From:   Thomas Gleixner <tglx@linutronix.de>
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To:     Artem Bityutskiy <dedekind1@gmail.com>, x86@kernel.org,
        "Rafael J. Wysocki" <rafael@kernel.org>
Cc:     Linux PM Mailing List <linux-pm@vger.kernel.org>,
        Arjan van de Ven <arjan@linux.intel.com>,
        Artem Bityutskiy <dedekind1@gmail.com>
Subject: Re: [PATCH v3 1/2] x86/mwait: Add support for idle via umwait
In-Reply-To: <87352a0vu4.ffs@tglx>
References: <20230610183518.4061159-1-dedekind1@gmail.com>
 <20230610183518.4061159-2-dedekind1@gmail.com> <87352a0vu4.ffs@tglx>
Date:   Fri, 30 Jun 2023 00:36:27 +0200
Message-ID: <87wmzlzyj8.ffs@tglx>
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On Fri, Jun 30 2023 at 00:04, Thomas Gleixner wrote:
>> +static inline void __umonitor(const void *rcx)

These inlines must be __always_inline to prevent the compiler from
instrumenting this.

For further information see:

  0e985e9d2286 ("cpuidle: Add comments about noinstr/__cpuidle usage")
  2b5a0e425e6e ("objtool/idle: Validate __cpuidle code as noinstr")

Thanks,

        tglx