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 <linux/processor.h> in <linux/bit_spinlock.h> to fix the issue. This will help to remove some un-needed includes from <include/dcache.h>. [1]: https://lore.kernel.org/all/202301082130.LXMj5qkD-lkp@xxxxxxxxx/ Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> --- Change in v2: - include <linux/processor.h> instead of <asm/processor.h> (Andrew Morton) v1: https://lore.kernel.org/all/8b81101d59a31f4927016c17e49be96754a23380.1673204461.git.christophe.jaillet@xxxxxxxxxx/ --- include/linux/bit_spinlock.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h index bbc4730a6505..4e3b407963f6 100644 --- a/include/linux/bit_spinlock.h +++ b/include/linux/bit_spinlock.h @@ -4,9 +4,9 @@ #include <linux/kernel.h> #include <linux/preempt.h> +#include <linux/processor.h> #include <linux/atomic.h> #include <linux/bug.h> - /* * bit-based spin_lock() * -- 2.34.1