[xen staging] xen/perfc: Drop arch_perfc_{gather,reset}()

[patchbot@xxxxxxx]

commit 8900010501121411160562f2086d98831b392c99
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Sun Dec 29 18:31:32 2024 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Jan 7 11:50:25 2025 +0000

    xen/perfc: Drop arch_perfc_{gather,reset}()
    
    These were only ever used by the IA64 port, which was droped in commit
    570c311ca2c7 ("remove ia64") in 2012.
    
    Remove them, and clean up the arm/x86 stub headers.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/include/asm/perfc.h | 21 ---------------------
 xen/arch/x86/include/asm/perfc.h | 12 ------------
 xen/common/perfc.c               |  6 ------
 3 files changed, 39 deletions(-)

diff --git a/xen/arch/arm/include/asm/perfc.h b/xen/arch/arm/include/asm/perfc.h
deleted file mode 100644
index 95c4b2b6b7..0000000000
--- a/xen/arch/arm/include/asm/perfc.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __ASM_PERFC_H__
-#define __ASM_PERFC_H__
-
-static inline void arch_perfc_reset(void)
-{
-}
-
-static inline void arch_perfc_gather(void)
-{
-}
-
-#endif
-
-/*
- * 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/perfc.h b/xen/arch/x86/include/asm/perfc.h
deleted file mode 100644
index a1a591e803..0000000000
--- a/xen/arch/x86/include/asm/perfc.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __ASM_PERFC_H__
-#define __ASM_PERFC_H__
-
-static inline void arch_perfc_reset(void)
-{
-}
-
-static inline void arch_perfc_gather(void)
-{
-}
-
-#endif
diff --git a/xen/common/perfc.c b/xen/common/perfc.c
index 80480aa776..ed4dba36f1 100644
--- a/xen/common/perfc.c
+++ b/xen/common/perfc.c
@@ -8,7 +8,6 @@
 #include <xen/mm.h>
 #include <xen/guest_access.h>
 #include <public/sysctl.h>
-#include <asm/perfc.h>
 
 #define PERFCOUNTER( var, name )              { name, TYPE_SINGLE, 0 },
 #define PERFCOUNTER_ARRAY( var, name, size )  { name, TYPE_ARRAY,  size },
@@ -148,8 +147,6 @@ void cf_check perfc_reset(unsigned char key)
             break;
         }
     }
-
-    arch_perfc_reset();
 }
 
 static struct xen_sysctl_perfc_desc perfc_d[NR_PERFCTRS];
@@ -199,9 +196,6 @@ static int 
perfc_copy_info(XEN_GUEST_HANDLE_64(xen_sysctl_perfc_desc_t) desc,
     if ( perfc_vals == NULL )
         return -ENOMEM;
 
-    /* Architecture may fill counters from hardware.  */
-    arch_perfc_gather();
-
     /* We gather the counts together every time. */
     for ( i = j = v = 0; i < NR_PERFCTRS; i++ )
     {
--
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