linux-kernel - [PATCH] Yama: mark local symbols as static

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Message-Id: <20190326230841.87834-1-jannh@google.com>
Date:   Wed, 27 Mar 2019 00:08:41 +0100
From:   Jann Horn <jannh@...gle.com>
To:     Kees Cook <keescook@...omium.org>, jannh@...gle.com
Cc:     linux-kernel@...r.kernel.org, James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        linux-security-module@...r.kernel.org
Subject: [PATCH] Yama: mark local symbols as static

sparse complains that Yama defines functions and a variable as non-static
even though they don't exist in any header. Fix it by making them static.

Signed-off-by: Jann Horn <jannh@...gle.com>
---
 security/yama/yama_lsm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 57cc60722dd3..06b14a57b0a4 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -206,7 +206,7 @@ static void yama_ptracer_del(struct task_struct *tracer,
  * yama_task_free - check for task_pid to remove from exception list
  * @task: task being removed
  */
-void yama_task_free(struct task_struct *task)
+static void yama_task_free(struct task_struct *task)
 {
 	yama_ptracer_del(task, task);
 }
@@ -401,7 +401,7 @@ static int yama_ptrace_access_check(struct task_struct *child,
  *
  * Returns 0 if following the ptrace is allowed, -ve on error.
  */
-int yama_ptrace_traceme(struct task_struct *parent)
+static int yama_ptrace_traceme(struct task_struct *parent)
 {
 	int rc = 0;
 
@@ -452,7 +452,7 @@ static int yama_dointvec_minmax(struct ctl_table *table, int write,
 static int zero;
 static int max_scope = YAMA_SCOPE_NO_ATTACH;
 
-struct ctl_path yama_sysctl_path[] = {
+static struct ctl_path yama_sysctl_path[] = {
 	{ .procname = "kernel", },
 	{ .procname = "yama", },
 	{ }
-- 
2.21.0.392.gf8f6787159e-goog