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

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Message-ID: <f5469873-f099-4926-883a-37badec904df@kernel.org>
Date: Tue, 15 Oct 2024 09:55:06 +0200
From: Jiri Slaby <jirislaby@...nel.org>
To: Christoph Hellwig <hch@....de>
Cc: 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 15. 10. 24, 9:50, Christoph Hellwig wrote:
> On Tue, Oct 15, 2024 at 09:47:31AM +0200, Jiri Slaby wrote:
>>> diff --git a/drivers/mailbox/omap-mailbox.c b/drivers/mailbox/omap-mailbox.c
>>> index 6797770474a55d..680243751d625f 100644
>>> --- a/drivers/mailbox/omap-mailbox.c
>>> +++ b/drivers/mailbox/omap-mailbox.c
>>> @@ -15,6 +15,7 @@
>>>    #include <linux/slab.h>
>>>    #include <linux/kfifo.h>
>>>    #include <linux/err.h>
>>> +#include <linux/io.h>
>>
>> Oh, I've just noticed this. Why io.h?
> 
> 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"?

-- 
js
suse labs