From nobody Mon Feb 9 05:52:52 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CD7B31EB5DB; Fri, 2 May 2025 20:53:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746219228; cv=none; b=BiL3va4kX6hI0hXv9HzCkI+eonzQF9yz6pm5+sbUZtvbD2Pt7GIYc7+yD8Uy3yHFwG8fFE6KXbjMYw1ZclcpzawXL09Gmp028tZNbWRjcrSndqW33CiJy6oxpBNki7qkAa5reIiMxxXA3RIgPRzMNWYvswcHqKd+XXDcA6S9gjM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746219228; c=relaxed/simple; bh=eGoXC6PxV7+R1ceOCIV5HnJX5yRFgYWLtD6ouKR5GnQ=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=ARQoUxtbSrYCwYu/nIBMh8gvpvi0HXSuxtPQb6ql0HNJx4nvRdvL6Ba2ayCcIzT4DHS7Or27B0+qkrRNPRW8vZ65BRvbsV5KM06BSLQk9WOmE3EW11WavkKMAzDzSYAsp/IgahJg5nUL+8sMfu89NHLovCqEi4UM3v0Z248Z3Bc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 63A9BC4CEE9; Fri, 2 May 2025 20:53:48 +0000 (UTC) Received: from rostedt by gandalf with local (Exim 4.98.2) (envelope-from ) id 1uAxOG-0000000069d-0Sj6; Fri, 02 May 2025 16:53:48 -0400 Message-ID: <20250502205347.961733858@goodmis.org> User-Agent: quilt/0.68 Date: Fri, 02 May 2025 16:51:48 -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 Subject: [PATCH 01/12] tracing/mmiotrace: Remove reference to unused per CPU data pointer References: <20250502205147.283272733@goodmis.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Steven Rostedt The mmiotracer referenced the per CPU array_buffer->data descriptor but never actually used it. Remove the references to it. Signed-off-by: Steven Rostedt (Google) --- kernel/trace/trace_mmiotrace.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c index ba5858866b2f..c706544be60c 100644 --- a/kernel/trace/trace_mmiotrace.c +++ b/kernel/trace/trace_mmiotrace.c @@ -291,7 +291,6 @@ __init static int init_mmio_trace(void) device_initcall(init_mmio_trace); =20 static void __trace_mmiotrace_rw(struct trace_array *tr, - struct trace_array_cpu *data, struct mmiotrace_rw *rw) { struct trace_buffer *buffer =3D tr->array_buffer.buffer; @@ -315,12 +314,10 @@ static void __trace_mmiotrace_rw(struct trace_array *= tr, void mmio_trace_rw(struct mmiotrace_rw *rw) { struct trace_array *tr =3D mmio_trace_array; - struct trace_array_cpu *data =3D per_cpu_ptr(tr->array_buffer.data, smp_p= rocessor_id()); - __trace_mmiotrace_rw(tr, data, rw); + __trace_mmiotrace_rw(tr, rw); } =20 static void __trace_mmiotrace_map(struct trace_array *tr, - struct trace_array_cpu *data, struct mmiotrace_map *map) { struct trace_buffer *buffer =3D tr->array_buffer.buffer; @@ -344,12 +341,7 @@ static void __trace_mmiotrace_map(struct trace_array *= tr, void mmio_trace_mapping(struct mmiotrace_map *map) { struct trace_array *tr =3D mmio_trace_array; - struct trace_array_cpu *data; - - preempt_disable(); - data =3D per_cpu_ptr(tr->array_buffer.data, smp_processor_id()); - __trace_mmiotrace_map(tr, data, map); - preempt_enable(); + __trace_mmiotrace_map(tr, map); } =20 int mmio_trace_printk(const char *fmt, va_list args) --=20 2.47.2