From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793115855; b=AZQdHTgd/iFGntHZuUVYl1Kf1HgfP1rDkEP/6+Cc+mkiF5R3ijtvouuBBgoHmQYvggyt ufdoFriPh03h+UbAlBUNGw9rkm7Tn8FMF8YZtOkKFIqtbS7JaqWv9stkNOwz/GCissxXH /4XCYrO+eMFqtbxqom4fj4JutAc0suJZnHlnaRyKXHx9nY692ZH44h1CTon7ilp3gEaDq deb5pPr3lauE1Uy55QSEZV9MQU47qemwRsMtpNeXcaNp+nroS9QrJng90Z3RfIO8YIJCV 4nn2ZvvZH7jOlfJgGArOVOEN4JeaflzsEntWUJNwRTk1MVyFeWWe3u50JH7dZf6uO1Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793115855; h=Received:DKIM-Signature:Received:Message-ID:User-Agent:Date:From:To: Cc:Subject:References:MIME-Version:Content-Type; bh=65ibzMdITZGSAinHNOg+LTDdIfpABOn2+CpyYHzaFRs=; b=w2vjufNOoKuwPYCE4+EYmWTkJUPUaMsd4wCvIMBRJ3atOuyZFqiXNnRN58D/2PSCUm2x cZvXCAUXahjLWKoYtw+dAXVgJvCq/xEvXaWLgREEYfmKIGSZV9iid/Oh3iyS1oZ4gQAH5 vv/GCRwC925Z6NfPBywF1Uj1CT4mlZSrOYQL/bqjS/js6YgnGX14eMD83XUsmiLwjKN8m kQJ9a1AV5+q5ajbbFzVA6R04mLAouMflj+H1kO8WFMzaRiK//ZaWxLGJTE/2w4Xn553jg ypRGAgUrwROHK5gY6AGtEXt9uVoHHtmy7EEHWOa+W5pKMsEDE/4MhHkiYyKiyjzQL7g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ILrstzel; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 480EF60A262A; Tue, 27 Oct 2026 15:44:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ILrstzel Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15EB01F031EC; Tue, 27 Oct 2026 15:44:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793115855; bh=65ibzMdITZGSAinHNOg+LTDdIfpABOn2+CpyYHzaFRs=; h=Date:From:To:Cc:Subject:References; b=ILrstzel9sh37XBGgpdGLVoMZZPwgFmzqTPYiJYdvHBD2VW/wP7qteo/K2QbcrcgN hHTd29eWnKhMWjnGR6ag5JLvmd0f+VAVAcMjHbxUFv7v6i6p8LO3QgMbHcuOBAyA6r PRwNWLLNmG/DdOwJpG4XAz1QoP+ANfM0NLFCjQ1xSYxSU3sr1nI7FYlBg4cpLsHYvP b8ykWLq92n2UhVg1XBzUtlktg7Zvf/Tpzl3/2WFxAW7/cWK0juK5sz6qDJFK8o3rn8 imb0TrnpC8AATsUq8uc4J8Is1et9nN/XgP/s1eRBRG5fRWoiOyTW16S16Aw/4zFPXk BdM2I95nC1z/w== Received: from rostedt by gandalf with local (Exim 4.100.1) (envelope-from ) id 1xLjLS-000000078kD-1Ukd; Tue, 27 Oct 2026 11:44:14 -0400 Message-ID: <20261027154414.184324075@kernel.org> User-Agent: quilt/0.69 Date: Tue, 27 Oct 2026 11:37:07 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Vineeth Pillai , Peter Zijlstra , Aaron Conole , Alex Deucher , Alexei Starovoitov , Anna-Maria Behnsen , Borislav Petkov , Chanwoo Choi , =?UTF-8?q?Christian=20K=C3=B6nig?= , Daniel Borkmann , Danilo Krummrich , Dave Hansen , David Airlie , "David S. Miller" , Eelco Chaudron , Eric Dumazet , Frederic Weisbecker , Ilya Maximets , Ingo Molnar , Jakub Kicinski , "James E.J. Bottomley" , Jesper Dangaard Brouer , Jiri Pirko , John Fastabend , Jon Maloy , Koby Elbaz , Konstantin Sinyuk , Kyungmin Park , Maarten Lankhorst , Marcelo Ricardo Leitner , "Martin K. Petersen" , Matthew Brost , Maxime Ripard , MyungJoo Ham , Oded Gabbay , Paolo Abeni , Philipp Stanner , Simona Vetter , Sumit Semwal , Thomas Gleixner , Thomas Zimmermann , tipc-discussion@lists.sourceforge.net, Tung Quang Nguyen , Xin Long , x86@kernel.org, amd-gfx@lists.freedesktop.org, bpf@vger.kernel.org, dev@openvswitch.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-pm@vger.kernel.org, linux-scsi@vger.kernel.org, linux-sctp@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 9/9] x86: msr: Use trace_call__##name() at guarded tracepoint call sites References: <20261027153658.703730257@kernel.org> X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 From: Vineeth Pillai Replace trace_foo() with the new trace_call__foo() at sites already guarded by trace_foo_enabled(), avoiding a redundant static_branch_unlikely() re-evaluation inside the tracepoint. trace_call__foo() calls the tracepoint callbacks directly without utilizing the static branch again. Original v2 series: https://lore.kernel.org/linux-trace-kernel/20260323160052.17528-1-vineeth@bitbyteword.org/ Parts of the original v2 series have already been merged in mainline. This patch is being reposted as a follow-up cleanup for the remaining unmerged pieces. Link: https://patch.msgid.link/20260515140004.2238951-1-vineeth@bitbyteword.org Suggested-by: Steven Rostedt Suggested-by: Peter Zijlstra Signed-off-by: Vineeth Pillai (Google) Assisted-by: Claude:claude-sonnet-4-6 Signed-off-by: Steven Rostedt --- arch/x86/lib/msr.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c index dfdd1da89f36..14785fe5e07b 100644 --- a/arch/x86/lib/msr.c +++ b/arch/x86/lib/msr.c @@ -125,21 +125,21 @@ EXPORT_SYMBOL_FOR_KVM(msr_clear_bit); #ifdef CONFIG_TRACEPOINTS void do_trace_write_msr(u32 msr, u64 val, int failed) { - trace_write_msr(msr, val, failed); + trace_call__write_msr(msr, val, failed); } EXPORT_SYMBOL(do_trace_write_msr); EXPORT_TRACEPOINT_SYMBOL(write_msr); void do_trace_read_msr(u32 msr, u64 val, int failed) { - trace_read_msr(msr, val, failed); + trace_call__read_msr(msr, val, failed); } EXPORT_SYMBOL(do_trace_read_msr); EXPORT_TRACEPOINT_SYMBOL(read_msr); void do_trace_rdpmc(u32 msr, u64 val, int failed) { - trace_rdpmc(msr, val, failed); + trace_call__rdpmc(msr, val, failed); } EXPORT_SYMBOL(do_trace_rdpmc); EXPORT_TRACEPOINT_SYMBOL(rdpmc); -- 2.53.0