linux-kernel - Re: [PATCH 0/2] locking/lockdep, drm: apply new lockdep assert in drm

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Date:   Fri, 30 Jul 2021 13:37:41 -0400
From:   Waiman Long <llong@...hat.com>
To:     Desmond Cheong Zhi Xi <desmondcheongzx@...il.com>,
        maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, airlied@...ux.ie, daniel@...ll.ch,
        peterz@...radead.org, mingo@...hat.com, will@...nel.org,
        boqun.feng@...il.com
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        skhan@...uxfoundation.org, gregkh@...uxfoundation.org,
        linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH 0/2] locking/lockdep, drm: apply new lockdep assert in
 drm_auth.c

On 7/30/21 12:15 AM, 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.
>
> 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/linux/lockdep.h    | 41 +++++++++++++++++++-------------------
>   2 files changed, 24 insertions(+), 23 deletions(-)
>
This patch series looks good to me.

Acked-by: Waiman Long <longman@...hat.com>

Thanks!