From: Javier Martinez Canillas <javierm@redhat.com>
To: Thomas Zimmermann <tzimmermann@suse.de>, linux-kernel@vger.kernel.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
Jonathan Corbet <corbet@lwn.net>,
linux-doc@vger.kernel.org, dri-devel@lists.freedesktop.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH v5 2/7] firmware: sysfb: Add helpers to unregister a pdev and disable registration
Date: Wed, 11 May 2022 14:29:42 +0200 [thread overview]
Message-ID: <fa10ffa4-d43f-1270-acab-3d3d228e0b88@redhat.com> (raw)
In-Reply-To: <8ec8d896-599e-b1ff-2b4f-077d73944705@suse.de>
Hello Thomas,
On 5/11/22 14:05, Thomas Zimmermann wrote:
[snip]
>>
>> Other subsystems ask you to do the opposite, to split the definition and
>> usage in separate patches. But I'm fine with merging those if you prefer.
>
> Usually, I have no strong opinion on this. But in the case of this
> specific patchset, I have the feeling that I'm missing some important
> point because call and implementation are separate. See my other
> replies for that. Putting them next to each other will hopefully help.
> Sorry for the inconvenience.
>
No worries at all. Happy to do that change if the patches are easy to
understand. It took me some time as well to wrap my head around all
the race conditions and needed locking.
Same for patch 3/7, but I'm convinced that dropping the lock is the
correct thing to do than calling to drivers' .remove callbacks with
a lock held.
--
Best regards,
Javier Martinez Canillas
Linux Engineering
Red Hat
next prev parent reply other threads:[~2022-05-11 12:29 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-11 11:24 [PATCH v5 0/7] Fix some races between sysfb device registration and drivers probe Javier Martinez Canillas
2022-05-11 11:24 ` [PATCH v5 1/7] firmware: sysfb: Make sysfb_create_simplefb() return a pdev pointer Javier Martinez Canillas
2022-05-11 12:04 ` Javier Martinez Canillas
2022-05-11 11:24 ` [PATCH v5 2/7] firmware: sysfb: Add helpers to unregister a pdev and disable registration Javier Martinez Canillas
2022-05-11 11:54 ` Thomas Zimmermann
2022-05-11 12:01 ` Javier Martinez Canillas
2022-05-11 12:05 ` Thomas Zimmermann
2022-05-11 12:29 ` Javier Martinez Canillas [this message]
2022-05-11 12:02 ` Thomas Zimmermann
2022-05-11 12:24 ` Javier Martinez Canillas
2022-05-11 11:30 ` [PATCH v5 3/7] fbdev: Restart conflicting fb removal loop when unregistering devices Javier Martinez Canillas
2022-05-11 11:47 ` Thomas Zimmermann
2022-05-11 11:57 ` Javier Martinez Canillas
2022-05-13 12:28 ` Javier Martinez Canillas
2022-05-11 11:31 ` [PATCH v5 4/7] fbdev: Make sysfb to unregister its own registered devices Javier Martinez Canillas
2022-05-11 11:31 ` [PATCH v5 5/7] fbdev: Disable sysfb device registration when removing conflicting FBs Javier Martinez Canillas
2022-06-07 15:01 ` Daniel Vetter
2022-06-07 15:41 ` Javier Martinez Canillas
2022-05-11 11:32 ` [PATCH v5 6/7] Revert "fbdev: Prevent probing generic drivers if a FB is already registered" Javier Martinez Canillas
2022-05-11 11:32 ` [PATCH v5 7/7] fbdev: Make registered_fb[] private to fbmem.c Javier Martinez Canillas
2022-05-11 17:00 ` Sam Ravnborg
2022-05-11 17:17 ` Guenter Roeck
2022-05-11 17:34 ` Javier Martinez Canillas
2022-05-12 18:32 ` Sam Ravnborg
2022-05-13 10:48 ` [PATCH v5 0/7] Fix some races between sysfb device registration and drivers probe Thomas Zimmermann
2022-05-13 11:10 ` Javier Martinez Canillas
2022-05-13 11:32 ` Thomas Zimmermann
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