From nobody Sat Feb 7 18:52:17 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 ECE573D6688; Tue, 20 Jan 2026 22:11:18 +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=1768947079; cv=none; b=lzOcZRk0C5a6mzFEERhW5S6rTWk0Upc1jsfqcknF9sMm7c6IeeY8kwDZQ0uWC6gbulgESkrHCK4a8P8qQ81Gf5kMsw1YtkBws2J7K1wMB8/YnNDgUnHZrafjF2hOeQAT4ubzAKokepjjMeI+vbk8g+zifqPepMK1RWmwcMZFMLs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768947079; c=relaxed/simple; bh=9AQ04Q45KYJvgiQU6eyRgu+IU8LONLjTjfGyl0Bpwi4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=JndacWyDmmmOI0AgnY2duerMngjsqbtOon5+vYACAE8wF1MLiPOsQJ2G8F8ArTZtqkxUr/uLvwZhKs2ZjrrMD3A7lw5vIQiR6um98ywTI2Nlb0iO7KwrzUubLQSoUen1gsb7zyTucpnkf83rBmZvmBHJNf8pCIgz5ElGTL6q3sQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Vhq6UHwL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Vhq6UHwL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5BCBAC19422; Tue, 20 Jan 2026 22:11:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768947078; bh=9AQ04Q45KYJvgiQU6eyRgu+IU8LONLjTjfGyl0Bpwi4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vhq6UHwLs31n5OYRl7O4R6lW97+tl/MF6JcSIT63Pd7IwWpvfk8P6A6V86ZqNMOFJ mj0A8aLa/ttnmSidn4G0iJZ9/liTYZnWRL4px5vRMt+cBjXngxVjQ+NQ5py7uLYN1x OG7bWeg9Wr+d14dvfZGoxkJEqd2U6ehSpgF8+IiuGAV4qalcCd1lbhc3AQPVfKcfM4 kckSPHH6jLcZQ0Quf1ROKXtjJJfZRvZjrmuDjTqkKKU82v0kZA3DXawS4zAoBlqMU9 eDjxqzJVr/aV2RE0WPr6KYcx1Q7351fcQKZftFX7zKG7W+ermQlxCyw2/eOlqOhW0m WhL3/X9EXzMXQ== From: Arnaldo Carvalho de Melo To: Namhyung Kim Cc: Ingo Molnar , Thomas Gleixner , James Clark , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo Subject: [PATCH 1/4] perf tests sw-clock: Mark the volatile tmp variable as __maybe_unused Date: Tue, 20 Jan 2026 19:08:57 -0300 Message-ID: <20260120220900.366451-2-acme@kernel.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260120220900.366451-1-acme@kernel.org> References: <20260120220900.366451-1-acme@kernel.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: Arnaldo Carvalho de Melo As it is just used to waste some cycles, not being used as all, to silence some compilers. Noticed with gcc version 16.0.1 20260115 on fedora 44: tests/sw-clock.c: In function '__test__sw_clock_freq': tests/sw-clock.c:31:22: error: variable 'tmp' set but not used [-Werror= =3Dunused-but-set-variable=3D] 31 | volatile int tmp =3D 0; | ^~~ Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/sw-clock.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c index 4a2ad7176fa07be0..b6e46975379cd5ef 100644 --- a/tools/perf/tests/sw-clock.c +++ b/tools/perf/tests/sw-clock.c @@ -5,6 +5,7 @@ #include #include #include +#include #include =20 #include "tests.h" @@ -28,7 +29,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id) { int i, err =3D -1; - volatile int tmp =3D 0; + volatile int tmp __maybe_unused =3D 0; u64 total_periods =3D 0; int nr_samples =3D 0; char sbuf[STRERR_BUFSIZE]; --=20 2.52.0