[PATCH v2 11/12] xen/arch: Drop asm-*/trace.h

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

The feature is x86 and pv-dom0 specific, and each architecture's main trace.h
files are empty.  Don't force all new architectures to create an empty file.

While moving the declaration of tb_init_done, change from int to bool.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Jan Beulich <JBeulich@xxxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Wei Liu <wl@xxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>

v2:
 * New
---
 xen/common/trace.c          |  2 +-
 xen/include/asm-arm/trace.h | 12 ------------
 xen/include/asm-x86/trace.h |  4 ----
 xen/include/xen/trace.h     | 13 +++++--------
 4 files changed, 6 insertions(+), 25 deletions(-)
 delete mode 100644 xen/include/asm-arm/trace.h
 delete mode 100644 xen/include/asm-x86/trace.h

diff --git a/xen/common/trace.c b/xen/common/trace.c
index 41a3c170446b..a5dc468296d6 100644
--- a/xen/common/trace.c
+++ b/xen/common/trace.c
@@ -67,7 +67,7 @@ static DEFINE_PER_CPU(unsigned long, lost_records_first_tsc);
 
 /* a flag recording whether initialization has been done */
 /* or more properly, if the tbuf subsystem is enabled right now */
-int tb_init_done __read_mostly;
+bool __read_mostly tb_init_done;
 
 /* which CPUs tracing is enabled on */
 static cpumask_t tb_cpu_mask;
diff --git a/xen/include/asm-arm/trace.h b/xen/include/asm-arm/trace.h
deleted file mode 100644
index e06def61f6f3..000000000000
--- a/xen/include/asm-arm/trace.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __ASM_TRACE_H__
-#define __ASM_TRACE_H__
-
-#endif /* __ASM_TRACE_H__ */
-/*
- * Local variables:
- * mode: C
- * c-file-style: "BSD"
- * c-basic-offset: 4
- * indent-tabs-mode: nil
- * End:
- */
diff --git a/xen/include/asm-x86/trace.h b/xen/include/asm-x86/trace.h
deleted file mode 100644
index edef1bb099d4..000000000000
--- a/xen/include/asm-x86/trace.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __ASM_TRACE_H__
-#define __ASM_TRACE_H__
-
-#endif /* __ASM_TRACE_H__ */
diff --git a/xen/include/xen/trace.h b/xen/include/xen/trace.h
index 3cbb542af888..055883287e8c 100644
--- a/xen/include/xen/trace.h
+++ b/xen/include/xen/trace.h
@@ -21,19 +21,14 @@
 #ifndef __XEN_TRACE_H__
 #define __XEN_TRACE_H__
 
-/* Put 'tb_init_done' here because 'asm/trace.h' may use it */
-#ifdef CONFIG_TRACEBUFFER
-extern int tb_init_done;
-#else
-#define tb_init_done false
-#endif
-
 #include <xen/types.h>
 #include <public/sysctl.h>
 #include <public/trace.h>
-#include <asm/trace.h>
 
 #ifdef CONFIG_TRACEBUFFER
+
+extern bool tb_init_done;
+
 /* Used to initialise trace buffer functionality */
 void init_trace_bufs(void);
 
@@ -58,6 +53,8 @@ void __trace_hypercall(uint32_t event, unsigned long op,
 
 #include <xen/errno.h>
 
+#define tb_init_done false
+
 static inline void init_trace_bufs(void) {}
 static inline int tb_control(struct xen_sysctl_tbuf_op *tbc)
 {
-- 
2.11.0