linux-kernel - Re: [PATCH 07/16] dma-debug: add debugfs interface

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Message-ID: <20090110230826.GJ17917@elte.hu>
Date:	Sun, 11 Jan 2009 00:08:26 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com,
	dwmw2@...radead.org, fujita.tomonori@....ntt.co.jp,
	netdev@...r.kernel.org, iommu@...ts.linux-foundation.org
Subject: Re: [PATCH 07/16] dma-debug: add debugfs interface


* Joerg Roedel <joerg.roedel@....com> wrote:

> +/* Global error count */
> +static u32 error_count;
> +
> +/* Global error show enable*/
> +static u32 show_all_errors __read_mostly;
> +/* Number of errors to show */
> +static u32 show_num_errors = 1;
> +
>  static u32 num_free_entries;
>  static u32 min_free_entries;

Small detail: please use native C types for non-hardware variables - 
'unsigned int', 'unsigned long', etc.

u32/u64 is typically used for variables where there is a real significance 
to the precise width of the variable: there's either a hardware or a 
user-space ABI involved.

	Ingo
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