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SubjectRe: [PATCH] bit_spinlock: Include <asm/processor.h>
On Sun,  8 Jan 2023 20:04:44 +0100 Christophe JAILLET <christophe.jaillet@wanadoo.fr> 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.
>
> 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/
>
> ...
>
> --- 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>

linux/processor.h would be preferable, rather than diving straight into asm/?

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