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Subject: powerpc: Avoid recursive header includes
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Fri Jan 8 19:48:21 2021 +0100
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- The include of bug.h leads to an include of printk.h which gets back
to spinlock.h and complains then about missing xchg().
Remove bug.h and add bits.h which is needed for BITS_PER_BYTE.
- Avoid the "please don't include this file directly" error from
rwlock-rt. Allow an include from/with rtmutex.h.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/powerpc/include/asm/cmpxchg.h | 2 +-
arch/powerpc/include/asm/simple_spinlock_types.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/arch/powerpc/include/asm/cmpxchg.h b/arch/powerpc/include/asm/cmpxchg.h
index cf091c4c22e5..7371f7e23c35 100644
--- a/arch/powerpc/include/asm/cmpxchg.h
+++ b/arch/powerpc/include/asm/cmpxchg.h
@@ -5,7 +5,7 @@
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <asm/synch.h>
-#include <linux/bug.h>
+#include <linux/bits.h>
#ifdef __BIG_ENDIAN
#define BITOFF_CAL(size, off) ((sizeof(u32) - size - off) * BITS_PER_BYTE)
diff --git a/arch/powerpc/include/asm/simple_spinlock_types.h b/arch/powerpc/include/asm/simple_spinlock_types.h
index 0f3cdd8faa95..d45561e9e6ba 100644
--- a/arch/powerpc/include/asm/simple_spinlock_types.h
+++ b/arch/powerpc/include/asm/simple_spinlock_types.h
@@ -2,7 +2,7 @@
#ifndef _ASM_POWERPC_SIMPLE_SPINLOCK_TYPES_H
#define _ASM_POWERPC_SIMPLE_SPINLOCK_TYPES_H
-#ifndef __LINUX_SPINLOCK_TYPES_H
+#if !defined(__LINUX_SPINLOCK_TYPES_H) && !defined(__LINUX_RT_MUTEX_H)
# error "please don't include this file directly"
#endif
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