linux-kernel - Re: [PATCH 01/11] resource: Add System RAM resource type

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Message-ID: <20151216154916.GF29775@pd.tnic>
Date:	Wed, 16 Dec 2015 16:49:16 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Toshi Kani <toshi.kani@....com>
Cc:	akpm@...ux-foundation.org, linux-arch@...r.kernel.org,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH 01/11] resource: Add System RAM resource type

On Wed, Dec 16, 2015 at 08:44:02AM -0700, Toshi Kani wrote:
> Besides "System RAM", which is commonly searched by multiple callers, we
> only have a few other uncommon cases:
>  - crash.c searches for "GART", "ACPI Tables", and "ACPI Non-volatile
> Storage".
>  - kexec_file.c searches for "Crash kernel".
>  - einj.c will search for "Persistent Memory".

Right, about those other types: your patchset improves the situation
but doesn't really get rid of the strcmp() and the strings. And using
strings to find resource types still looks yucky to me, even a week
later. :)

So how hard is it to do:

	region_intersects(base_addr, size, IORESOURCE_SYSTEM_RAM);
	region_intersects(base_addr, size, IORESOURCE_MEM, RES_TYPE_PERSISTENT);
	walk_iomem_res(RES_TYPE_GART, IORESOURCE_MEM, 0, -1, ced, get_gart_ranges_callback);
	...

and so on instead of using those silly strings?

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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