* Re: [cifs:for-next 1/1] fs/smbfs/ioctl.c:324:10: warning: variable 'caps' set but not used
2021-09-13 9:10 [cifs:for-next 1/1] fs/smbfs/ioctl.c:324:10: warning: variable 'caps' set but not used kernel test robot
@ 2021-09-13 23:34 ` Steve French
0 siblings, 0 replies; 2+ messages in thread
From: Steve French @ 2021-09-13 23:34 UTC (permalink / raw)
To: CIFS; +Cc: llvm, kbuild-all, samba-technical
[-- Attachment #1: Type: text/plain, Size: 4911 bytes --]
[PATCH] cifs: fix incorrect kernel doc comments
Correct kernel-doc comments pointed out by the
automated kernel test robot - see attached patch.
Reported-by: kernel test robot <lkp@intel.com>
On Mon, Sep 13, 2021 at 4:13 AM kernel test robot <lkp@intel.com> wrote:
>
> Hi Steve,
>
> First bad commit (maybe != root cause):
>
> tree: git://git.samba.org/sfrench/cifs-2.6.git for-next
> head: bba805a46c91e7a8a1d04704e5409f890acf8b66
> commit: bba805a46c91e7a8a1d04704e5409f890acf8b66 [1/1] cifs: rename fs/cifs directory to fs/smbfs
> config: hexagon-randconfig-r045-20210913 (attached as .config)
> compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 261cbe98c38f8c1ee1a482fe76511110e790f58a)
> reproduce (this is a W=1 build):
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> git remote add cifs git://git.samba.org/sfrench/cifs-2.6.git
> git fetch --no-tags cifs for-next
> git checkout bba805a46c91e7a8a1d04704e5409f890acf8b66
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=hexagon
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All warnings (new ones prefixed by >>):
>
> >> fs/smbfs/ioctl.c:324:10: warning: variable 'caps' set but not used [-Wunused-but-set-variable]
> __u64 caps;
> ^
> 1 warning generated.
> --
> >> fs/smbfs/connect.c:1093: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
> * Returns true if srcaddr isn't specified and rhs isn't specified, or
> fs/smbfs/connect.c:1558: warning: Function parameter or member 'ses' not described in 'cifs_setup_ipc'
> fs/smbfs/connect.c:1558: warning: Function parameter or member 'ctx' not described in 'cifs_setup_ipc'
> fs/smbfs/connect.c:1618: warning: Function parameter or member 'ses' not described in 'cifs_free_ipc'
> fs/smbfs/connect.c:1864: warning: Function parameter or member 'server' not described in 'cifs_get_smb_ses'
> fs/smbfs/connect.c:1864: warning: Function parameter or member 'ctx' not described in 'cifs_get_smb_ses'
> fs/smbfs/connect.c:2087: warning: Function parameter or member 'ses' not described in 'cifs_get_tcon'
> fs/smbfs/connect.c:2087: warning: Function parameter or member 'ctx' not described in 'cifs_get_tcon'
> fs/smbfs/connect.c:3046: warning: Function parameter or member 'xid' not described in 'expand_dfs_referral'
> fs/smbfs/connect.c:3046: warning: Function parameter or member 'ses' not described in 'expand_dfs_referral'
> fs/smbfs/connect.c:3046: warning: Function parameter or member 'ctx' not described in 'expand_dfs_referral'
> fs/smbfs/connect.c:3046: warning: Function parameter or member 'cifs_sb' not described in 'expand_dfs_referral'
> fs/smbfs/connect.c:3046: warning: Function parameter or member 'ref_path' not described in 'expand_dfs_referral'
>
>
> vim +/caps +324 fs/smbfs/ioctl.c
>
> 7ba3d1cdb7988c fs/cifs/ioctl.c Steve French 2021-05-02 312
> f9ddcca4cf7d95 fs/cifs/ioctl.c Steve French 2008-05-15 313 long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
> ^1da177e4c3f41 fs/cifs/ioctl.c Linus Torvalds 2005-04-16 314 {
> 496ad9aa8ef448 fs/cifs/ioctl.c Al Viro 2013-01-23 315 struct inode *inode = file_inode(filep);
> 7e7db86c7e1088 fs/cifs/ioctl.c Steve French 2019-09-19 316 struct smb3_key_debug_info pkey_inf;
> ^1da177e4c3f41 fs/cifs/ioctl.c Linus Torvalds 2005-04-16 317 int rc = -ENOTTY; /* strange error - but the precedent */
> 6d5786a34d98bf fs/cifs/ioctl.c Pavel Shilovsky 2012-06-20 318 unsigned int xid;
> ba00ba64cf0895 fs/cifs/ioctl.c Jeff Layton 2010-09-20 319 struct cifsFileInfo *pSMBFile = filep->private_data;
> 96daf2b09178d8 fs/cifs/ioctl.c Steve French 2011-05-27 320 struct cifs_tcon *tcon;
> a77592a70081ed fs/cifs/ioctl.c Ronnie Sahlberg 2020-07-09 321 struct tcon_link *tlink;
> d26c2ddd335696 fs/cifs/ioctl.c Steve French 2020-02-06 322 struct cifs_sb_info *cifs_sb;
> f654bac2227adc fs/cifs/ioctl.c Steve French 2005-04-28 323 __u64 ExtAttrBits = 0;
> 618763958b2291 fs/cifs/ioctl.c Jeff Layton 2010-11-08 @324 __u64 caps;
>
> :::::: The code at line 324 was first introduced by commit
> :::::: 618763958b2291a09057dbfa553da6ded93dcfad cifs: make cifs_ioctl handle NULL filp->private_data correctly
>
> :::::: TO: Jeff Layton <jlayton@redhat.com>
> :::::: CC: Steve French <sfrench@us.ibm.com>
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
--
Thanks,
Steve
[-- Attachment #2: 0001-cifs-fix-incorrect-kernel-doc-comments.patch --]
[-- Type: text/x-patch, Size: 3224 bytes --]
From 4c51de1e8f928a5b05248714d832d7d991ac319a Mon Sep 17 00:00:00 2001
From: Steve French <stfrench@microsoft.com>
Date: Mon, 13 Sep 2021 18:29:46 -0500
Subject: [PATCH] cifs: fix incorrect kernel doc comments
Correct kernel-doc comments pointed out by the
automated kernel test robot.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
---
fs/cifs/connect.c | 12 ++++++++++--
fs/cifs/ioctl.c | 2 +-
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 399a0f084573..7881115cfbee 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1089,7 +1089,7 @@ cifs_demultiplex_thread(void *p)
module_put_and_exit(0);
}
-/**
+/*
* Returns true if srcaddr isn't specified and rhs isn't specified, or
* if srcaddr is specified and matches the IP address of the rhs argument
*/
@@ -1549,6 +1549,9 @@ static int match_session(struct cifs_ses *ses, struct smb3_fs_context *ctx)
/**
* cifs_setup_ipc - helper to setup the IPC tcon for the session
+ * @ses: smb session to issue the request on
+ * @ctx: the superblock configuration context to use for building the
+ * new tree connection for the IPC (interprocess communication RPC)
*
* A new IPC connection is made and stored in the session
* tcon_ipc. The IPC tcon has the same lifetime as the session.
@@ -1604,6 +1607,7 @@ cifs_setup_ipc(struct cifs_ses *ses, struct smb3_fs_context *ctx)
/**
* cifs_free_ipc - helper to release the session IPC tcon
+ * @ses: smb session to unmount the IPC from
*
* Needs to be called everytime a session is destroyed.
*
@@ -1854,6 +1858,8 @@ cifs_set_cifscreds(struct smb3_fs_context *ctx __attribute__((unused)),
/**
* cifs_get_smb_ses - get a session matching @ctx data from @server
+ * @server: server to setup the session to
+ * @ctx: superblock configuration context to use to setup the session
*
* This function assumes it is being called from cifs_mount() where we
* already got a server reference (server refcount +1). See
@@ -2064,6 +2070,8 @@ cifs_put_tcon(struct cifs_tcon *tcon)
/**
* cifs_get_tcon - get a tcon matching @ctx data from @ses
+ * @ses: smb session to issue the request on
+ * @ctx: the superblock configuration context to use for building the
*
* - tcon refcount is the number of mount points using the tcon.
* - ses refcount is the number of tcon using the session.
@@ -3029,7 +3037,7 @@ build_unc_path_to_root(const struct smb3_fs_context *ctx,
return full_path;
}
-/**
+/*
* expand_dfs_referral - Perform a dfs referral query and update the cifs_sb
*
* If a referral is found, cifs_sb->ctx->mount_options will be (re-)allocated
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 44ae99454fb3..0359b604bdbc 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -358,7 +358,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
if (pSMBFile == NULL)
break;
tcon = tlink_tcon(pSMBFile->tlink);
- caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
+ /* caps = le64_to_cpu(tcon->fsUnixInfo.Capability); */
if (get_user(ExtAttrBits, (int __user *)arg)) {
rc = -EFAULT;
--
2.30.2
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