[xen master] xen: Drop $ARCH/trace.h

[patchbot@xxxxxxx]

commit 4c5edd2449bc7033821d39ac4ab7b964aeff44b9
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Mon Sep 20 17:12:56 2021 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Jan 10 21:17:02 2023 +0000

    xen: Drop $ARCH/trace.h
    
    Each architecture's main trace.h is empty.  Drop them all, so as not force 
all
    new architectures to create an empty file too.
    
    While moving the declaration of tb_init_done, change from int to bool.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 xen/arch/arm/include/asm/trace.h | 12 ------------
 xen/arch/x86/include/asm/trace.h |  4 ----
 xen/common/trace.c               |  2 +-
 xen/include/xen/trace.h          | 13 +++++--------
 4 files changed, 6 insertions(+), 25 deletions(-)

diff --git a/xen/arch/arm/include/asm/trace.h b/xen/arch/arm/include/asm/trace.h
deleted file mode 100644
index e06def61f6..0000000000
--- a/xen/arch/arm/include/asm/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/arch/x86/include/asm/trace.h b/xen/arch/x86/include/asm/trace.h
deleted file mode 100644
index edef1bb099..0000000000
--- a/xen/arch/x86/include/asm/trace.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __ASM_TRACE_H__
-#define __ASM_TRACE_H__
-
-#endif /* __ASM_TRACE_H__ */
diff --git a/xen/common/trace.c b/xen/common/trace.c
index fb3752ce62..9b4c696843 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/xen/trace.h b/xen/include/xen/trace.h
index 3cbb542af8..055883287e 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)
 {
--
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