linux-kernel - Re: [PATCH 158/196] Driver core: convert block from raw kobjects

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Date:	Sun, 27 Jan 2008 11:41:16 -0800
From:	Greg KH <gregkh@...e.de>
To:	Alexander van Heukelum <heukelum@...lshack.com>
Cc:	Alexander van Heukelum <heukelum@...tmail.fm>,
	Kay Sievers <kay.sievers@...y.org>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 158/196] Driver core: convert block from raw kobjects

On Sat, Jan 26, 2008 at 12:23:18AM +0100, Alexander van Heukelum wrote:
> Fix build with CONFIG_BLOCK off.
> 
> Building git-2d94dfc with CONFIG_BLOCK turned off gives me:
> 
> drivers/base/core.c: In function 'device_add_class_symlinks':
> drivers/base/core.c:704: error: 'part_type' undeclared (first use in this function)
> drivers/base/core.c:704: error: (Each undeclared identifier is reported only once
> drivers/base/core.c:704: error: for each function it appears in.)
> drivers/base/core.c: In function 'device_remove_class_symlinks':
> drivers/base/core.c:743: error: 'part_type' undeclared (first use in this function)
> 
> git-blame points to Kay Sievers.
> 
> The problem is obvious. I think te solution is too ;).
> 
> Tested with a silly configuration that contains just enough wits to boot
> and get to the prompt of klibc-dash on the built-in initramfs using:
>    qemu -m 8 -cpu pentium -serial stdio -cdrom arch/x86/boot/image.iso
> 
> Compile-tested i386-defconfig.
> 
> Signed-off-by: Alexander van Heukelum <heukelum@...tmail.fm>
> 
> Oh, and the compile-problem still exists in git-99f1c97. The git-tree is
> changing faster than I can test the patch and write an e-mail :-/.
> 
> diff --git a/drivers/base/core.c b/drivers/base/core.c
> index edf3bbe..3751843 100644
> --- a/drivers/base/core.c
> +++ b/drivers/base/core.c
> @@ -75,6 +75,15 @@ static ssize_t dev_attr_store(struct kobject *kobj, struct attribute *attr,
>  	return ret;
>  }
>  
> +static int dev_needs_link(struct device *dev)
> +{
> +#ifdef CONFIG_BLOCK
> +	return dev->type != &part_type;
> +#else
> +	return 1;
> +#endif
> +}

Ick.  Close, but still messy, let me try to do something cleaner here...

thanks,

greg k-h
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