From nobody Sun Sep 22 09:25:56 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4529BC4332F for ; Wed, 9 Feb 2022 05:38:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233619AbiBIFfP (ORCPT ); Wed, 9 Feb 2022 00:35:15 -0500 Received: from gmail-smtp-in.l.google.com ([23.128.96.19]:45704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230419AbiBIFeE (ORCPT ); Wed, 9 Feb 2022 00:34:04 -0500 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C4E64C03C180 for ; Tue, 8 Feb 2022 21:33:55 -0800 (PST) X-UUID: 3e4478ee8b9a48adad1dfc034d29a3c2-20220209 X-UUID: 3e4478ee8b9a48adad1dfc034d29a3c2-20220209 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 203253098; Wed, 09 Feb 2022 13:33:53 +0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Wed, 9 Feb 2022 13:33:52 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 9 Feb 2022 13:33:51 +0800 From: Mark-PK Tsai To: CC: , , , , , , , , , , , , , , Subject: [PATCH] init: Use ktime_us_delta() to make initcall_debug log more precise Date: Wed, 9 Feb 2022 13:33:50 +0800 Message-ID: <20220209053350.15771-1-mark-pk.tsai@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use ktime_us_delta() to make the initcall_debug log more precise than right shifting the result of ktime_to_ns() by 10 bits. Signed-off-by: Mark-PK Tsai Reviewed-by: Andrew Halaney Tested-by: Andrew Halaney --- init/main.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/init/main.c b/init/main.c index 65fa2e41a9c0..c8edcc3029b1 100644 --- a/init/main.c +++ b/init/main.c @@ -1246,15 +1246,11 @@ trace_initcall_start_cb(void *data, initcall_t fn) static __init_or_module void trace_initcall_finish_cb(void *data, initcall_t fn, int ret) { - ktime_t *calltime =3D (ktime_t *)data; - ktime_t delta, rettime; - unsigned long long duration; + ktime_t rettime, *calltime =3D (ktime_t *)data; =20 rettime =3D ktime_get(); - delta =3D ktime_sub(rettime, *calltime); - duration =3D (unsigned long long) ktime_to_ns(delta) >> 10; printk(KERN_DEBUG "initcall %pS returned %d after %lld usecs\n", - fn, ret, duration); + fn, ret, (unsigned long long)ktime_us_delta(rettime, *calltime)); } =20 static ktime_t initcall_calltime; --=20 2.18.0