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Date:   Mon, 11 Oct 2021 08:56:14 +0800
From:   Jia He <>
To:     Alexander Viro <>
        Jia He <>
Subject: [PATCH v2] d_path: Fix Kernel doc validator complaining

Kernel doc validator complains:
  Function parameter or member 'p' not described in 'prepend_name'
  Excess function parameter 'buffer' description in 'prepend_name'

Fixes: ad08ae586586 ("d_path: introduce struct prepend_buffer")
Cc: Al Viro <>
Signed-off-by: Jia He <>
Reviewed-by: Andy Shevchenko <>
Acked-by: Randy Dunlap <>
V2: add the Reviewed-by/Acked-by tag

 fs/d_path.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/d_path.c b/fs/d_path.c
index 23a53f7b5c71..4eb31f86ca88 100644
--- a/fs/d_path.c
+++ b/fs/d_path.c
@@ -33,9 +33,8 @@ static void prepend(struct prepend_buffer *p, const char *str, int namelen)
  * prepend_name - prepend a pathname in front of current buffer pointer
- * @buffer: buffer pointer
- * @buflen: allocated length of the buffer
- * @name:   name string and length qstr structure
+ * @p: prepend buffer which contains buffer pointer and allocated length
+ * @name: name string and length qstr structure
  * With RCU path tracing, it may race with d_move(). Use READ_ONCE() to
  * make sure that either the old or the new name pointer and length are
@@ -108,8 +107,7 @@ static int __prepend_path(const struct dentry *dentry, const struct mount *mnt,
  * prepend_path - Prepend path string to a buffer
  * @path: the dentry/vfsmount to report
  * @root: root vfsmnt/dentry
- * @buffer: pointer to the end of the buffer
- * @buflen: pointer to buffer length
+ * @p: prepend buffer which contains buffer pointer and allocated length
  * The function will first try to write out the pathname without taking any
  * lock other than the RCU read lock to make sure that dentries won't go away.

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