linux-kernel - Re: [PATCH] kfifo: don't include dma-mapping.h in kfifo.h

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Message-ID: <20241015075710.GC25487@lst.de>
Date: Tue, 15 Oct 2024 09:57:10 +0200
From: Christoph Hellwig <hch@....de>
To: Jiri Slaby <jirislaby@...nel.org>
Cc: Christoph Hellwig <hch@....de>, stefani@...bold.net,
	jassisinghbrar@...il.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] kfifo: don't include dma-mapping.h in kfifo.h

On Tue, Oct 15, 2024 at 09:55:06AM +0200, Jiri Slaby wrote:
>> Because it would not comple with out it.  To be specific: asm/io.h is
>> where __raw_readl and __raw_writel are defined, and we generally prefer
>> the Linux over the asm headers.
>
> OK, but how does this relate to "kfifo: don't include dma-mapping.h in 
> kfifo.h"?

Because before that it get io.h pulled in through our batshit crazy
header depency chain.