From 564d570da2c2a24a6d769afb1426b912506d5d22 Mon Sep 17 00:00:00 2001 From: Shanpei Chen Date: Mon, 29 Jul 2019 13:43:03 +0800 Subject: [PATCH] cpufreq/intel_pstate: Load only on Intel hardware commit 4ab526468344c11d2d1807ae95feb1f5305dc014 upstream. This driver is Intel-only so loading on anything which is not Intel is pointless. Prevent it from doing so. While at it, correct the "not supported" print statement to say CPU "model" which is what that test does. Fixes: 076b862c7e44 (cpufreq: intel_pstate: Add reasons for failure and debug messages) Suggested-by: Erwan Velu Signed-off-by: Borislav Petkov Reviewed-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki Signed-off-by: Shanpei Chen Acked-by: Michael Wang --- drivers/cpufreq/intel_pstate.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 36d9e5ddb244..6626d90f56c3 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -2562,6 +2562,9 @@ static int __init intel_pstate_init(void) const struct x86_cpu_id *id; int rc; + if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) + return -ENODEV; + if (no_load) return -ENODEV; @@ -2577,7 +2580,7 @@ static int __init intel_pstate_init(void) } else { id = x86_match_cpu(intel_pstate_cpu_ids); if (!id) { - pr_info("CPU ID not supported\n"); + pr_info("CPU model not supported\n"); return -ENODEV; } -- GitLab