linux-kernel - Re: [PATCH 6/7] fs/sysfs/group: make attribute

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Message-ID: <2023100921-that-jasmine-2240@gregkh>
Date:   Mon, 9 Oct 2023 19:25:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Max Kellermann <max.kellermann@...os.com>
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Subject: Re: [PATCH 6/7] fs/sysfs/group: make attribute_group pointers const

On Mon, Oct 09, 2023 at 06:57:39PM +0200, Max Kellermann wrote:
> This allows passing arrays of const pointers.  The goal is to make
> lots of global variables "const" to allow them to live in the
> ".rodata" section.

I'm all for doing this type of work, but this is going to be rough.  You
sent patch 6/7 that hit almost all subsystems at once :(

Also, the code:

> -int driver_add_groups(struct device_driver *drv, const struct attribute_group **groups);
> -void driver_remove_groups(struct device_driver *drv, const struct attribute_group **groups);
> +int driver_add_groups(struct device_driver *drv, const struct attribute_group *const*groups);
> +void driver_remove_groups(struct device_driver *drv, const struct attribute_group *const*groups);
>  void device_driver_detach(struct device *dev);

"*const*groups"?   That's a parsing nightmare, really hard for humans to
read and understand.  Doesn't checkpatch complain about this?

thanks,

greg k-h