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* [PATCH v2 0/2] locking/lockdep, drm: apply new lockdep assert in drm_auth.c
@ 2021-07-31  8:24 Desmond Cheong Zhi Xi
  2021-07-31  8:24 ` [PATCH v2 1/2] locking/lockdep: Provide lockdep_assert{,_once}() helpers Desmond Cheong Zhi Xi
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Desmond Cheong Zhi Xi @ 2021-07-31  8:24 UTC (permalink / raw)
  To: maarten.lankhorst, mripard, tzimmermann, airlied, daniel, peterz,
	mingo, will, longman, boqun.feng
  Cc: Desmond Cheong Zhi Xi, dri-devel, linux-kernel, skhan, gregkh,
	linux-kernel-mentees

Hi,

Following a discussion on the patch ("drm: use the lookup lock in
drm_is_current_master") [1], Peter Zijlstra proposed new lockdep_assert
helpers to make it convenient to compose lockdep checks together.

This series includes the patch that introduces the new lockdep helpers,
then utilizes these helpers in drm_is_current_master_locked in the
following patch.

v1 -> v2:
Patch 2:
- Updated the kerneldoc on the lock design of drm_file.master to explain
the use of lockdep_assert(). As suggested by Boqun Feng.

Link: https://lore.kernel.org/lkml/20210722092929.244629-2-desmondcheongzx@gmail.com/ [1]

Best wishes,
Desmond

Desmond Cheong Zhi Xi (1):
  drm: add lockdep assert to drm_is_current_master_locked

Peter Zijlstra (1):
  locking/lockdep: Provide lockdep_assert{,_once}() helpers

 drivers/gpu/drm/drm_auth.c |  6 +++---
 include/drm/drm_file.h     |  4 ++++
 include/linux/lockdep.h    | 41 +++++++++++++++++++-------------------
 3 files changed, 28 insertions(+), 23 deletions(-)

-- 
2.25.1


^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2021-08-02 10:44 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-31  8:24 [PATCH v2 0/2] locking/lockdep, drm: apply new lockdep assert in drm_auth.c Desmond Cheong Zhi Xi
2021-07-31  8:24 ` [PATCH v2 1/2] locking/lockdep: Provide lockdep_assert{,_once}() helpers Desmond Cheong Zhi Xi
2021-08-02  9:49   ` Maarten Lankhorst
2021-07-31  8:24 ` [PATCH v2 2/2] drm: add lockdep assert to drm_is_current_master_locked Desmond Cheong Zhi Xi
2021-08-02  8:26 ` [PATCH v2 0/2] locking/lockdep, drm: apply new lockdep assert in drm_auth.c Daniel Vetter
2021-08-02  9:42   ` Peter Zijlstra
2021-08-02 10:44   ` Desmond Cheong Zhi Xi

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