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e28024fbad
The DRM drivers use the lockdep assertion macros with spinlock_t locks which are backed by mutexes, not sx locks. This causes compile failures since you can't use sx_assert with a mutex. Instead, change the lockdep macros to use lock_class methods. This works by assuming that each LinuxKPI locking primitive embeds a FreeBSD lock as its first structure and uses a cast to get to the underlying 'struct lock_object'. Reviewed by: hselasky MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20992
79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*-
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* Copyright (c) 2010 Isilon Systems, Inc.
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* Copyright (c) 2010 iX Systems, Inc.
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* Copyright (c) 2010 Panasas, Inc.
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* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_LOCKDEP_H_
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#define _LINUX_LOCKDEP_H_
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struct lock_class_key {
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};
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#define lockdep_set_class(lock, key)
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#define lockdep_set_class_and_name(lock, key, name)
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#define lockdep_set_current_reclaim_state(g) do { } while (0)
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#define lockdep_clear_current_reclaim_state() do { } while (0)
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#ifdef INVARIANTS
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#define lockdep_assert_held(m) do { \
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struct lock_object *__lock = (struct lock_object *)(m); \
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LOCK_CLASS(__lock)->lc_assert(__lock, LA_LOCKED); \
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} while (0)
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#define lockdep_assert_held_once(m) do { \
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struct lock_object *__lock = (struct lock_object *)(m); \
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LOCK_CLASS(__lock)->lc_assert(__lock, LA_LOCKED | LA_NOTRECURSED); \
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} while (0)
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static __inline bool
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lockdep_is_held(void *__m)
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{
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struct lock_object *__lock;
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struct thread *__td;
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__lock = __m;
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return (LOCK_CLASS(__lock)->lc_owner(__lock, &__td) != 0);
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}
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#else
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#define lockdep_assert_held(m) do { } while (0)
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#define lockdep_assert_held_once(m) do { } while (0)
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#define lockdep_is_held(m) 1
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#endif
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#define might_lock(m) do { } while (0)
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#define might_lock_read(m) do { } while (0)
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#define lock_acquire(...) do { } while (0)
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#define lock_release(...) do { } while (0)
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#define lock_acquire_shared_recursive(...) do { } while (0)
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#endif /* _LINUX_LOCKDEP_H_ */
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