From: kbuild test robot <lkp@intel.com>
To: Michel Lespinasse <walken@google.com>
Cc: kbuild-all@lists.01.org,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: [PATCH 3/8] mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
Date: Fri, 27 Mar 2020 08:40:41 +0800 [thread overview]
Message-ID: <202003270804.COoBkGkB%lkp@intel.com> (raw)
In-Reply-To: <20200326070236.235835-4-walken@google.com>
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Hi Michel,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on rdma/for-next]
[also build test ERROR on linus/master v5.6-rc7]
[cannot apply to powerpc/next next-20200326]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Michel-Lespinasse/Add-a-new-mmap-locking-API-wrapping-mmap_sem-calls/20200327-035215
base: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next
config: s390-randconfig-a001-20200326 (attached as .config)
compiler: s390-linux-gcc (GCC) 9.2.0
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=9.2.0 make.cross ARCH=s390
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
drivers/dma-buf/dma-resv.c: In function 'dma_resv_lockdep':
>> drivers/dma-buf/dma-resv.c:112:2: error: implicit declaration of function 'mmap_read_lock'; did you mean '_raw_read_lock'? [-Werror=implicit-function-declaration]
112 | mmap_read_lock(mm);
| ^~~~~~~~~~~~~~
| _raw_read_lock
>> drivers/dma-buf/dma-resv.c:121:2: error: implicit declaration of function 'mmap_read_unlock'; did you mean '_raw_read_unlock'? [-Werror=implicit-function-declaration]
121 | mmap_read_unlock(mm);
| ^~~~~~~~~~~~~~~~
| _raw_read_unlock
cc1: some warnings being treated as errors
vim +112 drivers/dma-buf/dma-resv.c
98
99 #if IS_ENABLED(CONFIG_LOCKDEP)
100 static int __init dma_resv_lockdep(void)
101 {
102 struct mm_struct *mm = mm_alloc();
103 struct ww_acquire_ctx ctx;
104 struct dma_resv obj;
105 int ret;
106
107 if (!mm)
108 return -ENOMEM;
109
110 dma_resv_init(&obj);
111
> 112 mmap_read_lock(mm);
113 ww_acquire_init(&ctx, &reservation_ww_class);
114 ret = dma_resv_lock(&obj, &ctx);
115 if (ret == -EDEADLK)
116 dma_resv_lock_slow(&obj, &ctx);
117 fs_reclaim_acquire(GFP_KERNEL);
118 fs_reclaim_release(GFP_KERNEL);
119 ww_mutex_unlock(&obj.lock);
120 ww_acquire_fini(&ctx);
> 121 mmap_read_unlock(mm);
122
123 mmput(mm);
124
125 return 0;
126 }
127 subsys_initcall(dma_resv_lockdep);
128 #endif
129
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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next prev parent reply other threads:[~2020-03-27 0:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-26 7:02 [PATCH 0/8] Add a new mmap locking API wrapping mmap_sem calls Michel Lespinasse
2020-03-26 7:02 ` [PATCH 1/8] mmap locking API: initial implementation as rwsem wrappers Michel Lespinasse
2020-03-26 17:56 ` Jason Gunthorpe
2020-03-26 18:06 ` Matthew Wilcox
2020-03-26 18:09 ` Matthew Wilcox
2020-03-26 22:09 ` Michel Lespinasse
2020-03-26 7:02 ` [PATCH 2/8] MMU notifier: use the new mmap locking API Michel Lespinasse
2020-03-26 7:02 ` [PATCH 3/8] mmap locking API: use coccinelle to convert mmap_sem rwsem call sites Michel Lespinasse
2020-03-27 0:01 ` kbuild test robot
2020-03-27 0:40 ` kbuild test robot [this message]
2020-03-26 7:02 ` [PATCH 4/8] mmap locking API: convert mmap_sem call sites missed by coccinelle Michel Lespinasse
2020-03-26 23:13 ` kbuild test robot
2020-03-26 23:27 ` kbuild test robot
2020-03-26 7:02 ` [PATCH 5/8] mmap locking API: convert nested write lock sites Michel Lespinasse
2020-03-26 12:09 ` Matthew Wilcox
2020-03-26 12:56 ` Michel Lespinasse
2020-03-26 7:02 ` [PATCH 6/8] mmap locking API: add mmap_read_release() and mmap_read_unlock_non_owner() Michel Lespinasse
2020-03-26 7:02 ` [PATCH 7/8] mmap locking API: add MMAP_LOCK_INITIALIZER Michel Lespinasse
2020-04-06 9:46 ` Laurent Dufour
2020-04-06 13:04 ` Michel Lespinasse
2020-03-26 7:02 ` [PATCH 8/8] mmap locking API: rename mmap_sem to mmap_lock Michel Lespinasse
2020-04-06 12:45 ` Laurent Dufour
2020-04-06 13:17 ` Michel Lespinasse
2020-04-06 16:03 ` Davidlohr Bueso
2020-03-26 7:13 ` [PATCH 0/8] Add a new mmap locking API wrapping mmap_sem calls Michel Lespinasse
2020-03-26 13:30 [PATCH 3/8] mmap locking API: use coccinelle to convert mmap_sem rwsem call sites Markus Elfring
2020-03-26 22:17 ` Michel Lespinasse
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