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From: Desmond Cheong Zhi Xi <>
Cc: Desmond Cheong Zhi Xi <>,,,,,,,,
Subject: [RESEND PATCH v2 0/2] locking/lockdep, drm: apply new lockdep assert in drm_auth.c
Date: Mon,  2 Aug 2021 18:59:55 +0800	[thread overview]
Message-ID: <> (raw)

Hi all,

My bad for the resend. Adding cc: intel-gfx, and the maintainers and
mailing lists for include/drm/drm_file.h.

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: [1]

Best wishes,

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(-)


             reply	other threads:[~2021-08-02 11:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02 10:59 Desmond Cheong Zhi Xi [this message]
2021-08-02 10:59 ` [RESEND PATCH v2 1/2] locking/lockdep: Provide lockdep_assert{,_once}() helpers Desmond Cheong Zhi Xi
2021-08-02 10:59 ` [RESEND PATCH v2 2/2] drm: add lockdep assert to drm_is_current_master_locked Desmond Cheong Zhi Xi
2021-08-05 10:08   ` Daniel Vetter

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