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AJvYcCWdlT5WBWb32DUkHQCJx9NxD9PfXT7DxaVmfThPEarh14jUJ2Pa9q5FAX6AMSqiq4R8kC5w7Rr87jJvD2U=@vger.kernel.org X-Gm-Message-State: AOJu0YyJ0ql7qeLXpsehIuJVLOOPy7I2iPXxykOYbfHYtoJGmGW0IHHg daRhtJInHN2Xzl2XIURkA1Cb6oRXLLU17N5lm9sRPHMmjxjYUvI/zmL5qrkOxCDRSQKxh2h0uQ0 OyC/Pww== X-Google-Smtp-Source: AGHT+IFOPGbRFAxJkE+dEQP10DpVFZBKzSu9vIFxGxZ8r+laJ8avCeQVWaEft4PQXwRDgfVw41yAmv4ZGYUC X-Received: from pgbdp2.prod.google.com ([2002:a05:6a02:f02:b0:b14:9a53:2226]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:394f:b0:1f5:8622:5ed5 with SMTP id adf61e73a8af0-20ba6a18194mr167216637.3.1746035499179; Wed, 30 Apr 2025 10:51:39 -0700 (PDT) Date: Wed, 30 Apr 2025 10:50:09 -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: <20250430175036.184610-22-irogers@google.com> Subject: [PATCH v2 21/47] perf demangle: 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/demangle-java.c | 4 ++-- tools/perf/util/demangle-ocaml.c | 3 +-- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/tools/perf/util/demangle-java.c b/tools/perf/util/demangle-jav= a.c index ddf33d58bcd3..ee20f4d08765 100644 --- a/tools/perf/util/demangle-java.c +++ b/tools/perf/util/demangle-java.c @@ -42,9 +42,9 @@ static const char *base_types['Z' - 'A' + 1] =3D { * error : NULL */ static char * -__demangle_java_sym(const char *str, const char *end, char *buf, int maxle= n, int mode) +__demangle_java_sym(const char *str, const char *end, char *buf, size_t ma= xlen, int mode) { - int rlen =3D 0; + size_t rlen =3D 0; int array =3D 0; int narg =3D 0; const char *q; diff --git a/tools/perf/util/demangle-ocaml.c b/tools/perf/util/demangle-oc= aml.c index 9d707bb60b4b..25fe755df5ab 100644 --- a/tools/perf/util/demangle-ocaml.c +++ b/tools/perf/util/demangle-ocaml.c @@ -30,8 +30,7 @@ ocaml_demangle_sym(const char *sym) { char *result; int j =3D 0; - int i; - int len; + size_t i, len; =20 if (!ocaml_is_mangled(sym)) { return NULL; --=20 2.49.0.906.g1f30a19c02-goog