linux-kernel - Re: [PATCH] bit_spinlock: Include <asm/processor.h>

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Message-ID: <b5e0bd90-ff29-d301-30ca-2f12028109ce@kernel.org>
Date:   Mon, 9 Jan 2023 23:19:53 -0800
From:   Vineet Gupta <vgupta@...nel.org>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Vineet Gupta <vgupta@...nel.org>,
        Dan Carpenter <error27@...il.com>
Cc:     linux-snps-arc@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] bit_spinlock: Include <asm/processor.h>


On 1/8/23 11:04, Christophe JAILLET wrote:
> In an attempt to simplify some includes in <include/dcache.h>, it
> appeared, when compiling fs/ecryptfs/dentry.c, that <linux/bit_spinlock.h>
> was relying on other includes to get the definition of cpu_relax().
> (see [1])
>
> It broke on arc.

It its just ARC that broke, maybe we can do something there ?

> Include <asm/processor.h> in <linux/bit_spinlock.h> to fix the issue.
> This will help remove some un-needed includes from <include/dcache.h>.
>
> [1]: https://lore.kernel.org/all/202301082130.LXMj5qkD-lkp@intel.com/
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> ---
> Not sure who to send this to.
> get_maintainer.pl is of no help, and the file is untouched from a too long
> time.
>
> Greg? Dan? Any pointer?
> ---
>   include/linux/bit_spinlock.h | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h
> index bbc4730a6505..d0fd2a7afca2 100644
> --- a/include/linux/bit_spinlock.h
> +++ b/include/linux/bit_spinlock.h
> @@ -2,6 +2,7 @@
>   #ifndef __LINUX_BIT_SPINLOCK_H
>   #define __LINUX_BIT_SPINLOCK_H
>   
> +#include <asm/processor.h>
>   #include <linux/kernel.h>
>   #include <linux/preempt.h>
>   #include <linux/atomic.h>