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Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Jacob Pan Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com, Breno Leitao X-Mailer: b4 0.17-dev-ce4c1 X-Developer-Signature: v=1; a=openpgp-sha256; l=1564; i=leitao@debian.org; h=from:subject:message-id; bh=L3RQMfycbGJ3LubWzXCd6qPJp+uOzrF84Hrimw66cdY=; b=owEBbQKS/ZANAwAIATWjk5/8eHdtAcsmYgBq8ziOndj3QrZuqb+Bv8bQkMyesuu8W8EIyXllH tITDxEvZo2JAjMEAAEIAB0WIQSshTmm6PRnAspKQ5s1o5Of/Hh3bQUCavM4jgAKCRA1o5Of/Hh3 bZ2hD/9ChvyI9ROhCewzv34fROkkaHiIq4ebYZmQcrp4Wf0OI9jS7fMGI7wujXJVOnTTKaCruSF EuDFNGAjQBgzOgF9vWkaglXXI0QcfCE5c6DIzk/U2rEPZdh9dkgLkgWTrAxbdcs5LgyWjWfGciJ /uLshLIk3I+ocNPh8YTpTAIbBWkazW1QP9Crq1nZiDGLtzguG+U8qmHNVL8h8Un1Wy707F9Lkop uREWVaBU5G2Fy0EMHwxtH5ruZpNQJXyKwC3dnRCNMP3Gw/Esr6ddFsbMjrvRFUUSpbGzo6b7Qe/ Di9zv10zJD7kaukJsy9Hk2S7DZsjYWpFpyEi+R6NMI6kthXi2GysbgfddVn1oTHGxYw+1WH5EEO 2oR9tjJLj/1ePo8oIuezHRL7Drk2oZTa65GO4qGImlLZ9bfuhl3eMFYfBLduInjxt2oQDnp1CpS GHpc1BKTrI2ehuJQ35CQ5DVYKVZ4xLqjU1comwsye5Mm8T70xmhZWQxW4qJ4crbHl1ZNFRTYI7S kZ6AFDRmuxfG7oazupP5T2Bd5KPjbGOwT9ZR4R6LVAuSzgQXGhZh4z1FkG+yUJMmGYTVP10HEma zpzsXKKB4r+RB8NRo3BjAgW4Nph+CZZNVQtFH3uchhIY1PuOIaG0HZS87Zywgg6eexs86Usxvj3 AlqEhycntIegXyw== X-Developer-Key: i=leitao@debian.org; a=openpgp; fpr=AC8539A6E8F46702CA4A439B35A3939FFC78776D X-Debian-User: leitao powerclamp_probe() returns -ENODEV unless x86_match_cpu() finds an Intel CPU with MWAIT, and logs "CPU does not support MWAIT" at KERN_ERR when it does not. As a result, a kernel with CONFIG_INTEL_POWERCLAMP=y logs this error on every boot on a non-Intel CPU. # grep -m1 vendor_id /proc/cpuinfo vendor_id : AuthenticAMD # grep -m1 -o -w monitor /proc/cpuinfo monitor # dmesg -l err | grep intel_powerclamp: [ 0.485728] intel_powerclamp: CPU does not support MWAIT At KERN_ERR the line also gets past "quiet" and lands on the console, and on kernel metrics. Reduce it to debug, and also name both conditions in the message. Signed-off-by: Breno Leitao --- drivers/thermal/intel/intel_powerclamp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/thermal/intel/intel_powerclamp.c b/drivers/thermal/intel/intel_powerclamp.c index 1ffcb0a699e57d..82587dc8b0156f 100644 --- a/drivers/thermal/intel/intel_powerclamp.c +++ b/drivers/thermal/intel/intel_powerclamp.c @@ -695,7 +695,7 @@ static int __init powerclamp_probe(void) { if (!x86_match_cpu(intel_powerclamp_ids)) { - pr_err("CPU does not support MWAIT\n"); + pr_debug("CPU is not Intel or does not support MWAIT\n"); return -ENODEV; } --- base-commit: 630059a5a632377b9b7b487baccde92b7ae1dd47 base-tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master change-id: 20261110-powerclamp_mwait_msg-93bac0782c79 Best regards, -- Breno Leitao