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AHgh+RrtFcl/L/ifj9/+w2Wdu35WGtEEKCvO69d6wRHt52dGO1j9cZERVjZFE4zMJSCgK+I+t32JZtw3Hrg=@lists.xenproject.org X-Gm-Message-State: AOJu0YzoK51m8zmU8itLWqjEfP5u7DJdKiwdt2Ze543xRr6TO7SUlETY lzJPsKh4v2ruDxIpUKyBsfeMHjlc2FM953+P3THHKbnk+CGLWQFf/2QGpyKSJOgOy3sCU0EnoX5 z80ihaA== X-Received: from pgav2.prod.google.com ([2002:a05:6a02:2dc2:b0:c85:9dd2:d11e]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:7349:b0:3c6:3c5b:f2e1 with SMTP id adf61e73a8af0-3cbadcfcacfmr5222309637.32.1786059388428; Thu, 06 Aug 2026 16:36:28 -0700 (PDT) Reply-To: Sean Christopherson Date: Thu, 6 Aug 2026 16:35:21 -0700 In-Reply-To: <20260806233609.212337-1-seanjc@google.com> Mime-Version: 1.0 References: <20260806233609.212337-1-seanjc@google.com> X-Mailer: git-send-email 2.55.0.679.g6767b8d81c-goog Message-ID: <20260806233609.212337-5-seanjc@google.com> Subject: [PATCH v6 04/51] x86/tsc: Restrict recalibrate_cpu_khz() export to p4-clockmod and powernow-k7 From: Sean Christopherson To: Kiryl Shutsemau , Rick Edgecombe , Sean Christopherson , Paolo Bonzini , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Long Li , Ajay Kaher , Alexey Makhalov , Jan Kiszka , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Juergen Gross , Daniel Lezcano , Thomas Gleixner , John Stultz Cc: Vitaly Kuznetsov , Broadcom internal kernel review list , Boris Ostrovsky , Stephen Boyd , Miroslav Lichvar , x86@kernel.org, linux-coco@lists.linux.dev, kvm@vger.kernel.org, linux-hyperv@vger.kernel.org, virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, Michael Kelley , Tom Lendacky , Nikunj A Dadhania , David Woodhouse , David Woodhouse , Thomas Gleixner X-purgate-ID: tlsNG-d62444/1786059390-BCB45757-AB75D175/0/0 X-purgate-type: clean X-purgate-size: 833 X-ZohoMail-DKIM: pass (identity @google.com) X-ZM-MESSAGEID: 1786059413605158500 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Export recalibrate_cpu_khz() only for its two users, p4-clockmod.ko and powernow-k7.ko, to help document that recalibration is relevant only to ancient CPUs. For all intents and purposes, no functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: David Woodhouse --- arch/x86/kernel/tsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index bc4348585194..09bf10f322ba 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -943,7 +943,7 @@ void recalibrate_cpu_khz(void) cpu_khz_old, cpu_khz); #endif } -EXPORT_SYMBOL_GPL(recalibrate_cpu_khz); +EXPORT_SYMBOL_FOR_MODULES(recalibrate_cpu_khz, "p4-clockmod,powernow-k7"); =20 =20 static unsigned long long cyc2ns_suspend; --=20 2.55.0.679.g6767b8d81c-goog