linux-kernel - [PATCH] selinux: ss: mls: Remove unused function

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Date:	Sun, 11 Jan 2015 23:44:30 +0100
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Paul Moore <paul@...l-moore.com>,
	Stephen Smalley <sds@...ho.nsa.gov>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Eric Paris <eparis@...isplace.org>,
	James Morris <james.l.morris@...cle.com>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	Dave Jones <davej@...hat.com>, selinux@...ho.nsa.gov,
	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] selinux: ss: mls: Remove unused function

Remove the function mls_import_netlbl_cat() that is not used anywhere.

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 security/selinux/ss/mls.c |   38 --------------------------------------
 security/selinux/ss/mls.h |    7 -------
 2 files changed, 45 deletions(-)

diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index d307b37..c01c755 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -631,42 +631,4 @@ int mls_export_netlbl_cat(struct context *context,
 
 	return rc;
 }
-
-/**
- * mls_import_netlbl_cat - Import the MLS categories from NetLabel
- * @context: the security context
- * @secattr: the NetLabel security attributes
- *
- * Description:
- * Copy the NetLabel security attributes into the SELinux context; since the
- * NetLabel security attribute only contains a single MLS category use it for
- * both the low and high categories of the context.  Returns zero on success,
- * negative values on failure.
- *
- */
-int mls_import_netlbl_cat(struct context *context,
-			  struct netlbl_lsm_secattr *secattr)
-{
-	int rc;
-
-	if (!policydb.mls_enabled)
-		return 0;
-
-	rc = ebitmap_netlbl_import(&context->range.level[0].cat,
-				   secattr->attr.mls.cat);
-	if (rc != 0)
-		goto import_netlbl_cat_failure;
-
-	rc = ebitmap_cpy(&context->range.level[1].cat,
-			 &context->range.level[0].cat);
-	if (rc != 0)
-		goto import_netlbl_cat_failure;
-
-	return 0;
-
-import_netlbl_cat_failure:
-	ebitmap_destroy(&context->range.level[0].cat);
-	ebitmap_destroy(&context->range.level[1].cat);
-	return rc;
-}
 #endif /* CONFIG_NETLABEL */
diff --git a/security/selinux/ss/mls.h b/security/selinux/ss/mls.h
index e4369e3..11d3c8f 100644
--- a/security/selinux/ss/mls.h
+++ b/security/selinux/ss/mls.h
@@ -62,8 +62,6 @@ void mls_import_netlbl_lvl(struct context *context,
 			   struct netlbl_lsm_secattr *secattr);
 int mls_export_netlbl_cat(struct context *context,
 			  struct netlbl_lsm_secattr *secattr);
-int mls_import_netlbl_cat(struct context *context,
-			  struct netlbl_lsm_secattr *secattr);
 #else
 static inline void mls_export_netlbl_lvl(struct context *context,
 					 struct netlbl_lsm_secattr *secattr)
@@ -80,11 +78,6 @@ static inline int mls_export_netlbl_cat(struct context *context,
 {
 	return -ENOMEM;
 }
-static inline int mls_import_netlbl_cat(struct context *context,
-					struct netlbl_lsm_secattr *secattr)
-{
-	return -ENOMEM;
-}
 #endif
 
 #endif	/* _SS_MLS_H */
-- 
1.7.10.4

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