From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2AE10C9832A for ; Tue, 29 Sep 2026 03:40:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=qXy2sRf3UPjdIHWylaXPiQGMJd9HqpbGIqCOgYXTgM0=; b=VFMD+gbYLIGjLxD+o4JA6icEml AnTAddQRpK/V8HUtgs/1dhccn491hiN+8KYTNjV+U+UlZW8nXYKAQ/lxhCYTR8+10g1zXAmUmla2O qZZlvfc4knQjM9cMtQ9w509BgWuVzhdSLGDb1wxVM3j3lRipr/8iHKPSz6fVZxlSsQhWD4i0fjo16 ySFrsculz8CaDIbwK2Uw81fMHWT66fZgoll4i/4FNIbtkh0FF4Ug41q+1eDOGBYiIlz0gOCsMEGN5 ljl+Nka+yds0Fc0/OhGFr0VVbxZStg5XdHUMlO8fYOhCQm21XLC4um1Nmrr3n7F3FlS0gNz1zOmEt TGgA7c/g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xBOhi-00000002Ens-30mH; Tue, 29 Sep 2026 03:40:30 +0000 Received: from out30-98.freemail.mail.aliyun.com ([115.124.30.98]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xBOhg-00000002Emx-1Da4; Tue, 29 Sep 2026 03:40:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1790653222; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=qXy2sRf3UPjdIHWylaXPiQGMJd9HqpbGIqCOgYXTgM0=; b=O7E1oVIvEdiPqu+At1cihpzIAXw1IjdBeKSW9MU2ZDEcRHa7BHHO4pmx9xeWtHvalpgQOUnqSOPpaFnpYWrAEmw8rJl1ReUy//YI1WL/J/N8sRXHyBmPsqqGy5POcQPjGjkfTJjty4lTUhmw/D92x1cN3vcm3lxyFYwpmkUvEko= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R181e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037033178;MF=cp0613@linux.alibaba.com;NM=1;PH=DS;RN=21;SR=0;TI=SMTPD_---0XBrsUfB_1790653212; Received: from DESKTOP-S9E58SO.localdomain(mailfrom:cp0613@linux.alibaba.com fp:SMTPD_---0XBrsUfB_1790653212 cluster:ay36) by smtp.aliyun-inc.com; Tue, 29 Sep 2026 11:40:21 +0800 From: Chen Pei To: Leo Yan Cc: acme@kernel.org, peterz@infradead.org, mingo@redhat.com, namhyung@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, irogers@google.com, adrian.hunter@intel.com, james.clark@linaro.org, john.g.garry@oracle.com, will@kernel.org, mike.leach@arm.com, pjw@kernel.org, palmer@dabbelt.com, guoren@kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] perf tsc: Replace the compile-time TSC support check with a weak hook Date: Tue, 29 Sep 2026 11:40:11 +0800 Message-ID: <20260929034013.2110-1-cp0613@linux.alibaba.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260928163442.GG14479@e132581.arm.com> References: <20260928094739.2605-1-cp0613@linux.alibaba.com> <20260928094739.2605-3-cp0613@linux.alibaba.com> <20260928163442.GG14479@e132581.arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260928_204028_654034_9A9F250B X-CRM114-Status: UNSURE ( 8.40 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Leo, Thanks a lot for the review. > Just a bit on refactoring. You could refer to the implementation of > PERF_HAVE_JITDUMP in arch Makefile and "CFLAGS += -DHAVE_JITDUMP" and > do similiar thing for rdtsc. > > Seems to me, we can just use build system for configurations. Makes sense, I'll change it that way in v2, thanks for pointing at the existing pattern. Best regards, Pei