linux-kernel - [PATCH -next] apparmor: cleanup unused functions in file.h

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Date:   Tue, 25 Jul 2023 14:12:59 +0000
From:   Xiu Jianfeng <xiujianfeng@...wei.com>
To:     <john.johansen@...onical.com>, <paul@...l-moore.com>,
        <jmorris@...ei.org>, <serge@...lyn.com>,
        <mike.salvatore@...onical.com>
CC:     <apparmor@...ts.ubuntu.com>,
        <linux-security-module@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] apparmor: cleanup unused functions in file.h

After changes in commit 33bf60cabcc7 ("LSM: Infrastructure management of
the file security"), aa_alloc_file_ctx() and aa_free_file_ctx() are no
longer used, so remove them, and also remove aa_get_file_label() because
it seems that it's never been used before.

Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
---
 security/apparmor/include/file.h | 37 --------------------------------
 1 file changed, 37 deletions(-)

diff --git a/security/apparmor/include/file.h b/security/apparmor/include/file.h
index 5be620af33ba..23cb6f9dbe6e 100644
--- a/security/apparmor/include/file.h
+++ b/security/apparmor/include/file.h
@@ -45,43 +45,6 @@ struct aa_file_ctx {
 	u32 allow;
 };
 
-/**
- * aa_alloc_file_ctx - allocate file_ctx
- * @label: initial label of task creating the file
- * @gfp: gfp flags for allocation
- *
- * Returns: file_ctx or NULL on failure
- */
-static inline struct aa_file_ctx *aa_alloc_file_ctx(struct aa_label *label,
-						    gfp_t gfp)
-{
-	struct aa_file_ctx *ctx;
-
-	ctx = kzalloc(sizeof(struct aa_file_ctx), gfp);
-	if (ctx) {
-		spin_lock_init(&ctx->lock);
-		rcu_assign_pointer(ctx->label, aa_get_label(label));
-	}
-	return ctx;
-}
-
-/**
- * aa_free_file_ctx - free a file_ctx
- * @ctx: file_ctx to free  (MAYBE_NULL)
- */
-static inline void aa_free_file_ctx(struct aa_file_ctx *ctx)
-{
-	if (ctx) {
-		aa_put_label(rcu_access_pointer(ctx->label));
-		kfree_sensitive(ctx);
-	}
-}
-
-static inline struct aa_label *aa_get_file_label(struct aa_file_ctx *ctx)
-{
-	return aa_get_label_rcu(&ctx->label);
-}
-
 /*
  * The xindex is broken into 3 parts
  * - index - an index into either the exec name table or the variable table
-- 
2.34.1