Re: [PATCH v2] ntfs: fix incorrect kernel-doc comment syntax in files

From: Randy Dunlap
Date: Mon Mar 22 2021 - 14:36:31 EST


On 3/22/21 10:11 AM, Aditya Srivastava wrote:
> The opening comment mark '/**' is used for highlighting the beginning of
> kernel-doc comments.
> There are certain files in fs/ntfs which follow this syntax, but the
> content inside does not comply with kernel-doc.
> Such lines were probably not meant for kernel-doc parsing, but are parsed
> due to the presence of kernel-doc like comment syntax(i.e, '/**'),
> which causes unexpected warnings from kernel-doc.
>
> E.g., presence of kernel-doc like comment in the header for
> fs/ntfs/attrib.c, causes these unexpected warnings by kernel-doc:
> "warning: Incorrect use of kernel-doc format: * ntfs_map_runlist_nolock - map (a part of) a runlist of an ntfs inode"
> "warning: Function parameter or member 'ni' not described in 'ntfs_map_runlist_nolock'"
> "warning: Function parameter or member 'vcn' not described in 'ntfs_map_runlist_nolock'"
> "warning: Function parameter or member 'ctx' not described in 'ntfs_map_runlist_nolock'"
> "warning: expecting prototype for c(). Prototype was for ntfs_map_runlist_nolock() instead"
>
> Similarly for other files too.
>
> Provide a simple fix by replacing such occurrences with general comment
> format, i.e. '/*', to prevent kernel-doc from parsing it.
>
> Also fix enum documentation format at "ntfs_compression_constants", in
> fs/ntfs/compress.c, by prefixing 'enum' keyword to the comment
> description.
>
> Signed-off-by: Aditya Srivastava <yashsri421@xxxxxxxxx>

Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Thanks.

> ---
> Changes in v2:
> - prefix 'enum' keyword at "ntfs_compression_constants - enum of constants used in the compression code" comment in fs/ntfs/compress.c
> - modify comment message correspondingly
>
> fs/ntfs/aops.c | 2 +-
> fs/ntfs/aops.h | 2 +-
> fs/ntfs/attrib.c | 2 +-
> fs/ntfs/compress.c | 8 ++++----
> fs/ntfs/dir.c | 4 ++--
> fs/ntfs/inode.c | 2 +-
> fs/ntfs/mft.c | 2 +-
> fs/ntfs/runlist.c | 2 +-
> 8 files changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
> index bb0a43860ad2..1024cdec136a 100644
> --- a/fs/ntfs/aops.c
> +++ b/fs/ntfs/aops.c
> @@ -1,5 +1,5 @@
> // SPDX-License-Identifier: GPL-2.0-or-later
> -/**
> +/*
> * aops.c - NTFS kernel address space operations and page cache handling.
> *
> * Copyright (c) 2001-2014 Anton Altaparmakov and Tuxera Inc.
> diff --git a/fs/ntfs/aops.h b/fs/ntfs/aops.h
> index f0962d46bd67..2dcd46befdff 100644
> --- a/fs/ntfs/aops.h
> +++ b/fs/ntfs/aops.h
> @@ -1,5 +1,5 @@
> /* SPDX-License-Identifier: GPL-2.0-or-later */
> -/**
> +/*
> * aops.h - Defines for NTFS kernel address space operations and page cache
> * handling. Part of the Linux-NTFS project.
> *
> diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
> index d563abc3e136..2911c04a33e0 100644
> --- a/fs/ntfs/attrib.c
> +++ b/fs/ntfs/attrib.c
> @@ -1,5 +1,5 @@
> // SPDX-License-Identifier: GPL-2.0-or-later
> -/**
> +/*
> * attrib.c - NTFS attribute operations. Part of the Linux-NTFS project.
> *
> * Copyright (c) 2001-2012 Anton Altaparmakov and Tuxera Inc.
> diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
> index d2f9d6a0ee32..e4e7587e8f7b 100644
> --- a/fs/ntfs/compress.c
> +++ b/fs/ntfs/compress.c
> @@ -1,5 +1,5 @@
> // SPDX-License-Identifier: GPL-2.0-or-later
> -/**
> +/*
> * compress.c - NTFS kernel compressed attributes handling.
> * Part of the Linux-NTFS project.
> *
> @@ -19,7 +19,7 @@
> #include "ntfs.h"
>
> /**
> - * ntfs_compression_constants - enum of constants used in the compression code
> + * enum ntfs_compression_constants - enum of constants used in the compression code
> */
> typedef enum {
> /* Token types and access mask. */
> @@ -41,12 +41,12 @@ typedef enum {
> NTFS_MAX_CB_SIZE = 64 * 1024,
> } ntfs_compression_constants;
>
> -/**
> +/*
> * ntfs_compression_buffer - one buffer for the decompression engine
> */
> static u8 *ntfs_compression_buffer;
>
> -/**
> +/*
> * ntfs_cb_lock - spinlock which protects ntfs_compression_buffer
> */
> static DEFINE_SPINLOCK(ntfs_cb_lock);
> diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c
> index cd96083a12c8..518c3a21a556 100644
> --- a/fs/ntfs/dir.c
> +++ b/fs/ntfs/dir.c
> @@ -1,5 +1,5 @@
> // SPDX-License-Identifier: GPL-2.0-or-later
> -/**
> +/*
> * dir.c - NTFS kernel directory operations. Part of the Linux-NTFS project.
> *
> * Copyright (c) 2001-2007 Anton Altaparmakov
> @@ -17,7 +17,7 @@
> #include "debug.h"
> #include "ntfs.h"
>
> -/**
> +/*
> * The little endian Unicode string $I30 as a global constant.
> */
> ntfschar I30[5] = { cpu_to_le16('$'), cpu_to_le16('I'),
> diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
> index f5c058b3192c..4277d0fd7d88 100644
> --- a/fs/ntfs/inode.c
> +++ b/fs/ntfs/inode.c
> @@ -1,5 +1,5 @@
> // SPDX-License-Identifier: GPL-2.0-or-later
> -/**
> +/*
> * inode.c - NTFS kernel inode handling.
> *
> * Copyright (c) 2001-2014 Anton Altaparmakov and Tuxera Inc.
> diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
> index 0d62cd5bb7f8..d197d402933a 100644
> --- a/fs/ntfs/mft.c
> +++ b/fs/ntfs/mft.c
> @@ -1,5 +1,5 @@
> // SPDX-License-Identifier: GPL-2.0-or-later
> -/**
> +/*
> * mft.c - NTFS kernel mft record operations. Part of the Linux-NTFS project.
> *
> * Copyright (c) 2001-2012 Anton Altaparmakov and Tuxera Inc.
> diff --git a/fs/ntfs/runlist.c b/fs/ntfs/runlist.c
> index 97932fb5179c..0d448e9881f7 100644
> --- a/fs/ntfs/runlist.c
> +++ b/fs/ntfs/runlist.c
> @@ -1,5 +1,5 @@
> // SPDX-License-Identifier: GPL-2.0-or-later
> -/**
> +/*
> * runlist.c - NTFS runlist handling code. Part of the Linux-NTFS project.
> *
> * Copyright (c) 2001-2007 Anton Altaparmakov
>


--
~Randy