[PATCH 10/12] perf/breakpoint: Remove default hw_breakpoint_arch_parse()

[Frederic Weisbecker]

All architectures have implemented it, we can now remove the poor weak
version.

Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Max Filippov <jcmvbkbc@xxxxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Joel Fernandes <joel.opensrc@xxxxxxxxx>
---
 arch/arm/include/asm/hw_breakpoint.h     |  1 -
 arch/arm64/include/asm/hw_breakpoint.h   |  1 -
 arch/powerpc/include/asm/hw_breakpoint.h |  1 -
 arch/sh/include/asm/hw_breakpoint.h      |  1 -
 arch/x86/include/asm/hw_breakpoint.h     |  1 -
 arch/xtensa/include/asm/hw_breakpoint.h  |  1 -
 kernel/events/hw_breakpoint.c            | 17 -----------------
 7 files changed, 23 deletions(-)

diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h
index 451544d..3533fbe 100644
--- a/arch/arm/include/asm/hw_breakpoint.h
+++ b/arch/arm/include/asm/hw_breakpoint.h
@@ -122,7 +122,6 @@ extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
 extern int hw_breakpoint_arch_parse(struct perf_event *bp,
 				    struct perf_event_attr *attr,
 				    struct arch_hw_breakpoint *hw);
-#define hw_breakpoint_arch_parse hw_breakpoint_arch_parse
 extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
 					   unsigned long val, void *data);
 
diff --git a/arch/arm64/include/asm/hw_breakpoint.h b/arch/arm64/include/asm/hw_breakpoint.h
index 3b43319..d1a9c73 100644
--- a/arch/arm64/include/asm/hw_breakpoint.h
+++ b/arch/arm64/include/asm/hw_breakpoint.h
@@ -129,7 +129,6 @@ extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
 extern int hw_breakpoint_arch_parse(struct perf_event *bp,
 				    struct perf_event_attr *attr,
 				    struct arch_hw_breakpoint *hw);
-#define hw_breakpoint_arch_parse hw_breakpoint_arch_parse
 extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
 					   unsigned long val, void *data);
 
diff --git a/arch/powerpc/include/asm/hw_breakpoint.h b/arch/powerpc/include/asm/hw_breakpoint.h
index 8f647e6..22226fe 100644
--- a/arch/powerpc/include/asm/hw_breakpoint.h
+++ b/arch/powerpc/include/asm/hw_breakpoint.h
@@ -65,7 +65,6 @@ extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
 extern int hw_breakpoint_arch_parse(struct perf_event *bp,
 				    struct perf_event_attr *attr,
 				    struct arch_hw_breakpoint *hw);
-#define hw_breakpoint_arch_parse hw_breakpoint_arch_parse
 extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
 						unsigned long val, void *data);
 int arch_install_hw_breakpoint(struct perf_event *bp);
diff --git a/arch/sh/include/asm/hw_breakpoint.h b/arch/sh/include/asm/hw_breakpoint.h
index ed421dc..4910990 100644
--- a/arch/sh/include/asm/hw_breakpoint.h
+++ b/arch/sh/include/asm/hw_breakpoint.h
@@ -58,7 +58,6 @@ extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
 extern int hw_breakpoint_arch_parse(struct perf_event *bp,
 				    struct perf_event_attr *attr,
 				    struct arch_hw_breakpoint *hw);
-#define hw_breakpoint_arch_parse hw_breakpoint_arch_parse
 extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
 					   unsigned long val, void *data);
 
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 8cc161f..525f8c7 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -57,7 +57,6 @@ extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
 extern int hw_breakpoint_arch_parse(struct perf_event *bp,
 				    struct perf_event_attr *attr,
 				    struct arch_hw_breakpoint *hw);
-#define hw_breakpoint_arch_parse hw_breakpoint_arch_parse
 extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
 					   unsigned long val, void *data);
 
diff --git a/arch/xtensa/include/asm/hw_breakpoint.h b/arch/xtensa/include/asm/hw_breakpoint.h
index 58632d3..f3b6036 100644
--- a/arch/xtensa/include/asm/hw_breakpoint.h
+++ b/arch/xtensa/include/asm/hw_breakpoint.h
@@ -40,7 +40,6 @@ int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
 int hw_breakpoint_arch_parse(struct perf_event *bp,
 			     struct perf_event_attr *attr,
 			     struct arch_hw_breakpoint *hw);
-#define hw_breakpoint_arch_parse hw_breakpoint_arch_parse
 int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
 				    unsigned long val, void *data);
 
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index 9ac03ab..d7ed438 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -400,23 +400,6 @@ int dbg_release_bp_slot(struct perf_event *bp)
 	return 0;
 }
 
-#ifndef hw_breakpoint_arch_parse
-int hw_breakpoint_arch_parse(struct perf_event *bp,
-			     struct perf_event_attr *attr,
-			     struct arch_hw_breakpoint *hw)
-{
-	int err;
-
-	err = arch_validate_hwbkpt_settings(bp);
-	if (err)
-		return err;
-
-	*hw = bp->hw.info;
-
-	return 0;
-}
-#endif
-
 static int hw_breakpoint_parse(struct perf_event *bp,
 			       struct perf_event_attr *attr,
 			       struct arch_hw_breakpoint *hw)
-- 
2.7.4