Re: [PATCH v2 0/2] locking/lockdep, drm: apply new lockdep assert in drm_auth.c

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On 2/8/21 4:26 pm, Daniel Vetter wrote:
On Sat, Jul 31, 2021 at 04:24:56PM +0800, Desmond Cheong Zhi Xi wrote:
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@xxxxxxxxx/ [1]

Can you pls also cc: this to intel-gfx so the local CI there can pick it
up and verify? Just to check we got it all.
-Daniel


Oops my bad, I missed out the CI for this series. Will resend with the proper cc.

Best wishes,
Desmond



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






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