linux-kernel - [PATCH v1 1/1] mnt: Remove dead code which might prevent from building

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Message-ID: <20251024132336.1666382-1-andriy.shevchenko@linux.intel.com>
Date: Fri, 24 Oct 2025 15:23:36 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Christian Brauner <brauner@...nel.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	llvm@...ts.linux.dev
Cc: Jan Kara <jack@...e.cz>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 1/1] mnt: Remove dead code which might prevent from building

Clang, in particular, is not happy about dead code:

fs/namespace.c:135:37: error: unused function 'node_to_mnt_ns' [-Werror,-Wunused-function]
  135 | static inline struct mnt_namespace *node_to_mnt_ns(const struct rb_node *node)
      |                                     ^~~~~~~~~~~~~~
1 error generated.

Remove a leftover from the previous cleanup.

Fixes: 7d7d16498958 ("mnt: support ns lookup")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 fs/namespace.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index d82910f33dc4..9145bb02e9b7 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -132,16 +132,6 @@ EXPORT_SYMBOL_GPL(fs_kobj);
  */
 __cacheline_aligned_in_smp DEFINE_SEQLOCK(mount_lock);
 
-static inline struct mnt_namespace *node_to_mnt_ns(const struct rb_node *node)
-{
-	struct ns_common *ns;
-
-	if (!node)
-		return NULL;
-	ns = rb_entry(node, struct ns_common, ns_tree_node);
-	return container_of(ns, struct mnt_namespace, ns);
-}
-
 static void mnt_ns_release(struct mnt_namespace *ns)
 {
 	/* keep alive for {list,stat}mount() */
-- 
2.50.1