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AJvYcCWPi6wwAAKD7v1Xz/v32XnEyVXCDfb5F/zl/i4YzTfhpo4B2waFPGir4toBIFaskQGKNC06K/PoZzPqzn8=@vger.kernel.org X-Gm-Message-State: AOJu0Yzrvz/8toJbWk15wkWLJ9f61yRZU5n2uufIFjrDX2jmfcCighi+ zKw07FVQ9QqXeNhNZ/Itg7QIfLs/l6mYxKi4+09F7Oi/bKdD0JQCzVmIj5+ZVX9NxYmf7VZowBX eoyqQ7A== X-Google-Smtp-Source: AGHT+IHZuoAutCnkqXKOqoB1Twe8axOI+2YNX17mOyaNmeN3q84jfpFRgUiiLaKZ42UMBrF2XItVc4dh15Mg X-Received: from pjz16.prod.google.com ([2002:a17:90b:56d0:b0:2fa:284f:adb2]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:1b06:b0:309:fd87:820e with SMTP id 98e67ed59e1d1-30a33354fd4mr4996209a91.26.1746035493121; Wed, 30 Apr 2025 10:51:33 -0700 (PDT) Date: Wed, 30 Apr 2025 10:50:06 -0700 In-Reply-To: <20250430175036.184610-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250430175036.184610-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.906.g1f30a19c02-goog Message-ID: <20250430175036.184610-19-irogers@google.com> Subject: [PATCH v2 18/47] perf cs-etm: Silence -Wshorten-64-to-32 warnings From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Adrian Hunter , Kan Liang , Yury Norov , Rasmus Villemoes , Thomas Gleixner , Darren Hart , Davidlohr Bueso , "=?UTF-8?q?Andr=C3=A9=20Almeida?=" , John Garry , Will Deacon , James Clark , Mike Leach , Leo Yan , Yicong Yang , Jonathan Cameron , Nathan Chancellor , Bill Wendling , Justin Stitt , Josh Poimboeuf , Al Viro , Kyle Meyer , Ben Gainey , Athira Rajeev , Kajol Jain , Aditya Gupta , Eder Zulian , Dapeng Mi , Kuan-Wei Chiu , He Zhe , Dirk Gouders , Brian Geffon , Ravi Bangoria , Howard Chu , Charlie Jenkins , Colin Ian King , Dominique Martinet , Jann Horn , Masahiro Yamada , Arnd Bergmann , Yang Jihong , Dmitry Vyukov , Andi Kleen , Graham Woodward , Ilkka Koskinen , Anshuman Khandual , Zhongqiu Han , Hao Ge , Tengda Wu , Gabriele Monaco , Chun-Tse Shao , Casey Chen , "Dr. David Alan Gilbert" , Li Huafei , "Steinar H. Gunderson" , Levi Yun , Weilin Wang , Thomas Falcon , Thomas Richter , Andrew Kreimer , "=?UTF-8?q?Krzysztof=20=C5=81opatowski?=" , Christophe Leroy , Jean-Philippe Romain , Junhao He , "Masami Hiramatsu (Google)" , Xu Yang , Steve Clevenger , Zixian Cai , Stephen Brennan , Yujie Liu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev Cc: Ian Rogers Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The clang warning -Wshorten-64-to-32 can be useful to catch inadvertent truncation. In some instances this truncation can lead to changing the sign of a result, for example, truncation to return an int to fit a sort routine. Silence the warning by making the implicit truncation explicit. Signed-off-by: Ian Rogers --- tools/perf/util/cs-etm-base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/cs-etm-base.c b/tools/perf/util/cs-etm-base.c index 4abe416e3feb..3aa1ccc9e452 100644 --- a/tools/perf/util/cs-etm-base.c +++ b/tools/perf/util/cs-etm-base.c @@ -101,7 +101,7 @@ static int cs_etm__print_cpu_metadata_v1(u64 *val, int = *offset) =20 magic =3D val[i + CS_ETM_MAGIC]; /* total params to print is NR_PARAMS + common block size for v1 */ - total_params =3D val[i + CS_ETM_NR_TRC_PARAMS] + CS_ETM_COMMON_BLK_MAX_V1; + total_params =3D (int)val[i + CS_ETM_NR_TRC_PARAMS] + CS_ETM_COMMON_BLK_M= AX_V1; =20 if (magic =3D=3D __perf_cs_etmv3_magic) { for (j =3D 0; j < total_params; j++, i++) { @@ -140,7 +140,7 @@ static void cs_etm__print_auxtrace_info(u64 *val, int n= um) { int i, cpu =3D 0, version, err; =20 - version =3D val[0]; + version =3D (int)val[0]; =20 for (i =3D 0; i < CS_HEADER_VERSION_MAX; i++) fprintf(stdout, cs_etm_global_header_fmts[i], val[i]); --=20 2.49.0.906.g1f30a19c02-goog