git: drm/linux: Add xchg()

[Francois Tigeot]

commit ab413216e0477d18360cae566110a40c280c86b8
Author: François Tigeot <ftig...@wolfpond.org>
Date:   Thu May 7 10:38:27 2020 +0200

    drm/linux: Add xchg()

Summary of changes:
 sys/dev/drm/include/asm/atomic.h                |  5 +++
 sys/dev/drm/include/asm/{bitops.h => cmpxchg.h} | 56 +++++++++++++++----------
 2 files changed, 39 insertions(+), 22 deletions(-)
 copy sys/dev/drm/include/asm/{bitops.h => cmpxchg.h} (62%)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ab413216e0477d18360cae566110a40c280c86b8


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