K 10
svn:author
V 8
hselasky
K 8
svn:date
V 27
2020-05-18T09:22:17.504834Z
K 7
svn:log
V 558
MFC r351003:
Fix build with DRM and INVARIANTS enabled.

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
Differential Revision:	https://reviews.freebsd.org/D20992

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