[PATCH 08/20] thread: move thread bits accessors to separated file

On Mon, Jul 17, 2017 at 04:57:02PM +0200, Andreas Schwab wrote:

On Jun 19 2017, Yury Norov [off-list ref] wrote:

quoted

diff --git a/include/linux/thread_bits.h b/include/linux/thread_bits.h
new file mode 100644
index 000000000000..87354331bc7b
--- /dev/null
+++ b/include/linux/thread_bits.h

@@ -0,0 +1,63 @@
+/* thread_bits.h: common low-level thread bits accessors */
+
+#ifndef _LINUX_THREAD_BITS_H
+#define _LINUX_THREAD_BITS_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/bitops.h>
+#include <asm/thread_info.h>
+
+#ifdef CONFIG_THREAD_INFO_IN_TASK
+/*
+ * For CONFIG_THREAD_INFO_IN_TASK kernels we need <asm/current.h> for the
+ * definition of current, but for !CONFIG_THREAD_INFO_IN_TASK kernels,
+ * including <asm/current.h> can cause a circular dependency on some platforms.
+ */
+#include <asm/current.h>
+#define current_thread_info() ((struct thread_info *)current)
+#endif

This is duplicate.

quoted

diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index d7d3ea637dd0..c40a89357329 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h

@@ -7,9 +7,21 @@
 #ifndef _LINUX_THREAD_INFO_H
 #define _LINUX_THREAD_INFO_H
 
+/*
+ * For per-arch arch_within_stack_frames() implementations, defined in
+ * asm/thread_info.h.
+ */
+enum {
+	BAD_STACK = -1,
+	NOT_STACK = 0,
+	GOOD_FRAME,
+	GOOD_STACK,
+};
+

That should be kept after the includes.

Thanks, will fix.