From: kbuild test robot <lkp@intel.com>
To: Amir Goldstein <amir73il@gmail.com>
Cc: kbuild-all@01.org, Jan Kara <jack@suse.cz>,
Matthew Bobrowski <mbobrowski@mbobrowski.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v5 07/17] fanotify: encode file identifier for FAN_REPORT_FID
Date: Fri, 11 Jan 2019 16:10:58 +0800 [thread overview]
Message-ID: <201901111612.XzUbwDyo%fengguang.wu@intel.com> (raw)
In-Reply-To: <20190110170444.30616-8-amir73il@gmail.com>
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Hi Amir,
I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.0-rc1]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Amir-Goldstein/fanotify-add-support-for-more-event-types/20190111-090241
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=7.2.0 make.cross ARCH=mips
All warnings (new ones prefixed by >>):
In file included from include/linux/kernel.h:14:0,
from include/linux/list.h:9,
from include/linux/preempt.h:11,
from include/linux/spinlock.h:51,
from include/linux/fdtable.h:11,
from fs/notify/fanotify/fanotify.c:3:
fs/notify/fanotify/fanotify.c: In function 'fanotify_encode_fid':
include/linux/kern_levels.h:5:18: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long int' [-Wformat=]
#define KERN_SOH "\001" /* ASCII Start Of Header */
^
include/linux/printk.h:424:10: note: in definition of macro 'printk_ratelimited'
printk(fmt, ##__VA_ARGS__); \
^~~
include/linux/kern_levels.h:12:22: note: in expansion of macro 'KERN_SOH'
#define KERN_WARNING KERN_SOH "4" /* warning conditions */
^~~~~~~~
include/linux/printk.h:440:21: note: in expansion of macro 'KERN_WARNING'
printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~~
>> fs/notify/fanotify/fanotify.c:196:2: note: in expansion of macro 'pr_warn_ratelimited'
pr_warn_ratelimited("fanotify: failed to encode fid (fsid=%x.%x, type=%d, bytes=%d, err=%i)\n",
^~~~~~~~~~~~~~~~~~~
fs/notify/fanotify/fanotify.c:196:61: note: format string is defined here
pr_warn_ratelimited("fanotify: failed to encode fid (fsid=%x.%x, type=%d, bytes=%d, err=%i)\n",
~^
%lx
In file included from include/linux/kernel.h:14:0,
from include/linux/list.h:9,
from include/linux/preempt.h:11,
from include/linux/spinlock.h:51,
from include/linux/fdtable.h:11,
from fs/notify/fanotify/fanotify.c:3:
include/linux/kern_levels.h:5:18: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'long int' [-Wformat=]
#define KERN_SOH "\001" /* ASCII Start Of Header */
^
include/linux/printk.h:424:10: note: in definition of macro 'printk_ratelimited'
printk(fmt, ##__VA_ARGS__); \
^~~
include/linux/kern_levels.h:12:22: note: in expansion of macro 'KERN_SOH'
#define KERN_WARNING KERN_SOH "4" /* warning conditions */
^~~~~~~~
include/linux/printk.h:440:21: note: in expansion of macro 'KERN_WARNING'
printk_ratelimited(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~~
>> fs/notify/fanotify/fanotify.c:196:2: note: in expansion of macro 'pr_warn_ratelimited'
pr_warn_ratelimited("fanotify: failed to encode fid (fsid=%x.%x, type=%d, bytes=%d, err=%i)\n",
^~~~~~~~~~~~~~~~~~~
fs/notify/fanotify/fanotify.c:196:64: note: format string is defined here
pr_warn_ratelimited("fanotify: failed to encode fid (fsid=%x.%x, type=%d, bytes=%d, err=%i)\n",
~^
%lx
vim +/pr_warn_ratelimited +196 fs/notify/fanotify/fanotify.c
154
155 static int fanotify_encode_fid(struct fanotify_event *event,
156 const struct path *path, gfp_t gfp)
157 {
158 struct fanotify_fid *fid = &event->fid;
159 int dwords, bytes = 0;
160 struct kstatfs stat;
161 int err, type;
162
163 stat.f_fsid.val[0] = stat.f_fsid.val[1] = 0;
164 fid->ext_fh = NULL;
165 dwords = 0;
166 err = -ENOENT;
167 type = exportfs_encode_fh(path->dentry, NULL, &dwords, 0);
168 if (!dwords)
169 goto out_err;
170
171 err = vfs_statfs(path, &stat);
172 if (err)
173 goto out_err;
174
175 bytes = dwords << 2;
176 if (bytes > FANOTIFY_INLINE_FH_LEN) {
177 /* Treat failure to allocate fh as failure to allocate event */
178 err = -ENOMEM;
179 fid->ext_fh = kmalloc(bytes, gfp);
180 if (!fid->ext_fh)
181 goto out_err;
182 }
183
184 type = exportfs_encode_fh(path->dentry, fanotify_fid_fh(fid, bytes),
185 &dwords, 0);
186 err = -EINVAL;
187 if (!type || type == FILEID_INVALID || bytes != dwords << 2)
188 goto out_err;
189
190 fid->fsid = stat.f_fsid;
191 event->fh_len = bytes;
192
193 return type;
194
195 out_err:
> 196 pr_warn_ratelimited("fanotify: failed to encode fid (fsid=%x.%x, type=%d, bytes=%d, err=%i)\n",
197 stat.f_fsid.val[0], stat.f_fsid.val[1],
198 type, bytes, err);
199 kfree(fid->ext_fh);
200 fid->ext_fh = NULL;
201 event->fh_len = 0;
202
203 return FILEID_INVALID;
204 }
205
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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next prev parent reply other threads:[~2019-01-11 8:11 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 17:04 [PATCH v5 00/17] fanotify: add support for more event types Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 01/17] fsnotify: annotate directory entry modification events Amir Goldstein
2019-02-06 14:14 ` Jan Kara
2019-01-10 17:04 ` [PATCH v5 02/17] fsnotify: remove dirent events from FS_EVENTS_POSS_ON_CHILD mask Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 03/17] fsnotify: send all event types to super block marks Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 04/17] fsnotify: move mask out of struct fsnotify_event Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 05/17] fanotify: rename struct fanotify_{,perm_}event_info Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 06/17] fanotify: open code fill_event_metadata() Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 07/17] fanotify: encode file identifier for FAN_REPORT_FID Amir Goldstein
2019-01-11 8:10 ` kbuild test robot [this message]
2019-01-11 8:37 ` Amir Goldstein
2019-01-18 18:39 ` Paul Burton
2019-01-10 17:04 ` [PATCH v5 08/17] fanotify: copy event fid info to user Amir Goldstein
2019-02-06 17:41 ` Jan Kara
2019-01-10 17:04 ` [PATCH v5 09/17] fanotify: enable FAN_REPORT_FID init flag Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 10/17] fanotify: cache fsid in fsnotify_mark_connector Amir Goldstein
2019-01-11 3:13 ` kbuild test robot
2019-01-14 7:30 ` Dan Carpenter
2019-01-14 7:30 ` Dan Carpenter
2019-01-14 9:17 ` Amir Goldstein
2019-02-07 14:48 ` Jan Kara
2019-02-07 16:31 ` Amir Goldstein
2019-02-08 10:15 ` Jan Kara
2019-01-10 17:04 ` [PATCH v5 11/17] vfs: add vfs_get_fsid() helper Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 12/17] fanotify: use vfs_get_fsid() helper instead of vfs_statfs() Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 13/17] fsnotify: report FS_ISDIR flag with MOVE_SELF and DELETE_SELF events Amir Goldstein
2019-02-07 14:57 ` Jan Kara
2019-01-10 17:04 ` [PATCH v5 14/17] fanotify: check FS_ISDIR flag instead of d_is_dir() Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 15/17] fanotify: support events with data type FSNOTIFY_EVENT_INODE Amir Goldstein
2019-02-07 15:18 ` Jan Kara
2019-02-07 16:10 ` Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 16/17] fanotify: add support for create/attrib/move/delete events Amir Goldstein
2019-01-10 17:04 ` [PATCH v5 17/17] fanotify: report FAN_ONDIR to listener with FAN_REPORT_FID Amir Goldstein
2019-02-07 16:26 ` [PATCH v5 00/17] fanotify: add support for more event types Jan Kara
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