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[24.9.64.241]) by smtp.gmail.com with ESMTPSA id k18sm1253713ils.42.2020.09.01.16.49.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Sep 2020 16:49:40 -0700 (PDT) From: Shuah Khan To: tglx@linutronix.de, qais.yousef@arm.com, peterz@infradead.org, cai@lca.pw, mingo@kernel.org, ethp@qq.com, tyhicks@canonical.com, arnd@arndb.de Cc: Shuah Khan , linux-kernel@vger.kernel.org Subject: [PATCH] kernel: Use scnprintf() in show_smt_*() instead of snprintf() Date: Tue, 1 Sep 2020 17:49:30 -0600 Message-Id: <20200901234930.359126-2-skhan@linuxfoundation.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200901234930.359126-1-skhan@linuxfoundation.org> References: <20200901234930.359126-1-skhan@linuxfoundation.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since snprintf() returns would-be-output size instead of the actual output size, replace it with scnprintf(), so the show_smt_control(), and show_smt_active() routines return the actual size. Signed-off-by: Shuah Khan --- kernel/cpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/cpu.c b/kernel/cpu.c index 6ff2578ecf17..29a5ceb93cda 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -2334,7 +2334,7 @@ show_smt_control(struct device *dev, struct device_attribute *attr, char *buf) { const char *state = smt_states[cpu_smt_control]; - return snprintf(buf, PAGE_SIZE - 2, "%s\n", state); + return scnprintf(buf, PAGE_SIZE - 2, "%s\n", state); } static ssize_t @@ -2348,7 +2348,7 @@ static DEVICE_ATTR(control, 0644, show_smt_control, store_smt_control); static ssize_t show_smt_active(struct device *dev, struct device_attribute *attr, char *buf) { - return snprintf(buf, PAGE_SIZE - 2, "%d\n", sched_smt_active()); + return scnprintf(buf, PAGE_SIZE - 2, "%d\n", sched_smt_active()); } static DEVICE_ATTR(active, 0444, show_smt_active, NULL); -- 2.25.1