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Re: [PATCH v4 1/7] drm: Add DRM support for tiny LCD displays

From Noralf Trønnes <noralf@tronnes.org>
Newsgroups linux.kernel
Subject Re: [PATCH v4 1/7] drm: Add DRM support for tiny LCD displays
Date 2017-03-08 13:30 +0100
Message-ID <tiIT8-6v2-7@gated-at.bofh.it> (permalink)
References <t9KU9-4aS-7@gated-at.bofh.it> <t9L3P-4eF-1@gated-at.bofh.it> <tivMe-5FM-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Den 07.03.2017 23.21, skrev Daniel Vetter:
> On Sat, Feb 11, 2017 at 07:48:52PM +0100, Noralf Trønnes wrote:
>> +const struct file_operations tinydrm_fops = {
>> +	.owner		= THIS_MODULE,
>> +	.open		= drm_open,
>> +	.release	= drm_release,
>> +	.unlocked_ioctl	= drm_ioctl,
>> +#ifdef CONFIG_COMPAT
>> +	.compat_ioctl	= drm_compat_ioctl,
>> +#endif
>> +	.poll		= drm_poll,
>> +	.read		= drm_read,
>> +	.llseek		= no_llseek,
>> +	.mmap		= drm_gem_cma_mmap,
>> +};
>> +EXPORT_SYMBOL(tinydrm_fops);
> Just spotted this while doing a drive-by refactoring, this doesn't really
> work. The THIS_MODULE must be in the source code for your driver, and
> can't be in some helper library module like tinydrm.ko.

Yeah, you're right.

> I'm working on a macro to make this easier, and I guess you could try to
> integrate that into your driver macro somehow (probably simplest to
> generate the entire structure and just pass name+desc to that macro,
> everything else is boilerplate anyway).
>
> I'll cc you on that patch.

Thanks.

Noralf.

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Re: [PATCH v4 1/7] drm: Add DRM support for tiny LCD displays Daniel Vetter <daniel@ffwll.ch> - 2017-03-07 23:30 +0100
  Re: [PATCH v4 1/7] drm: Add DRM support for tiny LCD displays Noralf Trønnes <noralf@tronnes.org> - 2017-03-08 13:30 +0100

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