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[5.186.114.252]) by smtp.gmail.com with ESMTPSA id h3-v6sm7146380ede.42.2018.10.29.15.35.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 29 Oct 2018 15:35:48 -0700 (PDT) From: Rasmus Villemoes To: Steven Rostedt , Ingo Molnar Cc: Rasmus Villemoes , linux-kernel@vger.kernel.org Subject: [PATCH v2 2/3] tracing: avoid -Wformat-nonliteral warning Date: Mon, 29 Oct 2018 23:35:41 +0100 Message-Id: <20181029223542.26175-3-linux@rasmusvillemoes.dk> X-Mailer: git-send-email 2.19.1.6.gbde171bbf5 In-Reply-To: <20181029223542.26175-1-linux@rasmusvillemoes.dk> References: <20181026211347.2442-1-linux@rasmusvillemoes.dk> <20181029223542.26175-1-linux@rasmusvillemoes.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Building with -Wformat-nonliteral, gcc complains kernel/trace/trace_output.c: In function ‘seq_print_sym’: kernel/trace/trace_output.c:356:3: warning: format not a string literal, argument types not checked [-Wformat-nonliteral] trace_seq_printf(s, fmt, name); But seq_print_sym only has a single caller which passes "%s" as fmt, so we might as well just use that directly. That also paves the way for further cleanups that will actually make that format string go away entirely. Signed-off-by: Rasmus Villemoes --- kernel/trace/trace_output.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 85ecd061c7be..f06fb899b746 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -339,8 +339,7 @@ static inline const char *kretprobed(const char *name) #endif /* CONFIG_KRETPROBES */ static void -seq_print_sym(struct trace_seq *s, const char *fmt, unsigned long address, - bool offset) +seq_print_sym(struct trace_seq *s, unsigned long address, bool offset) { char str[KSYM_SYMBOL_LEN]; #ifdef CONFIG_KALLSYMS @@ -353,12 +352,12 @@ seq_print_sym(struct trace_seq *s, const char *fmt, unsigned long address, name = kretprobed(str); if (name && strlen(name)) { - trace_seq_printf(s, fmt, name); + trace_seq_printf(s, "%s", name); return; } #endif snprintf(str, KSYM_SYMBOL_LEN, "0x%08lx", address); - trace_seq_printf(s, fmt, str); + trace_seq_printf(s, "%s", str); } #ifndef CONFIG_64BIT @@ -407,7 +406,7 @@ seq_print_ip_sym(struct trace_seq *s, unsigned long ip, unsigned long sym_flags) goto out; } - seq_print_sym(s, "%s", ip, sym_flags & TRACE_ITER_SYM_OFFSET); + seq_print_sym(s, ip, sym_flags & TRACE_ITER_SYM_OFFSET); if (sym_flags & TRACE_ITER_SYM_ADDR) trace_seq_printf(s, " <" IP_FMT ">", ip); -- 2.19.1.6.gbde171bbf5