[PATCH v4 12/35] bit_spinlock: Include missing <asm/processor.h>
Marco Elver <[email protected]>
| Newsgroups | org.kernel.vger.linux-sparse,dev.linux.lists.llvm,org.kernel.vger.linux-crypto,org.kernel.vger.linux-doc,org.kernel.vger.linux-kbuild,org.kernel.vger.linux-kernel,org.kernel.vger.linux-security-module,org.kernel.vger.linux-wireless,org.kernel.vger.rcu,org.kvack.linux-mm |
|---|---|
| Message-ID | <[email protected]> |
Including <linux/bit_spinlock.h> into an empty TU will result in the
compiler complaining:
./include/linux/bit_spinlock.h:34:4: error: call to undeclared function 'cpu_relax'; <...>
34 | cpu_relax();
| ^
1 error generated.
Include <asm/processor.h> to allow including bit_spinlock.h where
<asm/processor.h> is not otherwise included.
Signed-off-by: Marco Elver <[email protected]>
---
include/linux/bit_spinlock.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h
index c0989b5b0407..59e345f74b0e 100644
--- a/include/linux/bit_spinlock.h
+++ b/include/linux/bit_spinlock.h
@@ -7,6 +7,8 @@
#include <linux/atomic.h>
#include <linux/bug.h>
+#include <asm/processor.h> /* for cpu_relax() */
+
/*
* bit-based spin_lock()
*
--
2.52.0.rc1.455.g30608eb744-goog