linux-kernel - Re: [PATCH v2 0/2] locking/lockdep, drm: apply new lockdep assert in drm

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Date:   Mon, 2 Aug 2021 18:44:04 +0800
From:   Desmond Cheong Zhi Xi <desmondcheongzx@...il.com>
To:     maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, airlied@...ux.ie, peterz@...radead.org,
        mingo@...hat.com, will@...nel.org, longman@...hat.com,
        boqun.feng@...il.com, 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 v2 0/2] locking/lockdep, drm: apply new lockdep assert in
 drm_auth.c

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@gmail.com/ [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
>>
>