We have too many combinations for function tracing. Lets simply stick to the most advanced option, so we don't have to care of other combinations.
This means we always select DYNAMIC_FTRACE if FUNCTION_TRACER is selected. In the s390 Makefile also remove CONFIG_FTRACE_SYSCALLS since that functionality got moved to architecture independent code in the meantime. Signed-off-by: Heiko Carstens <[email protected]> --- arch/s390/Kconfig | 1 + arch/s390/kernel/Makefile | 4 +--- arch/s390/kernel/ftrace.c | 6 ------ arch/s390/kernel/mcount.S | 2 -- arch/s390/kernel/mcount64.S | 2 -- 5 files changed, 2 insertions(+), 13 deletions(-) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2d935cb77393..a8cbc72837d0 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -99,6 +99,7 @@ config S390 select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_EXTABLE_SORT select CLONE_BACKWARDS2 + select DYNAMIC_FTRACE if FUNCTION_TRACER select GENERIC_CLOCKEVENTS select GENERIC_CPU_DEVICES if !SMP select GENERIC_FIND_FIRST_BIT diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index a95c4ca99617..d44245d4df37 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -53,9 +53,7 @@ obj-$(CONFIG_COMPAT) += compat_wrapper.o $(compat-obj-y) obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_KPROBES) += kprobes.o obj-$(CONFIG_FUNCTION_TRACER) += $(if $(CONFIG_64BIT),mcount64.o,mcount.o) -obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o -obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o -obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o +obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o ifdef CONFIG_64BIT diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c index 69eb49ccf8a4..40d4da7c9f8a 100644 --- a/arch/s390/kernel/ftrace.c +++ b/arch/s390/kernel/ftrace.c @@ -17,8 +17,6 @@ #include <asm/asm-offsets.h> #include "entry.h" -#ifdef CONFIG_DYNAMIC_FTRACE - void ftrace_disable_code(void); void ftrace_enable_insn(void); @@ -140,8 +138,6 @@ int __init ftrace_dyn_arch_init(void) return 0; } -#endif /* CONFIG_DYNAMIC_FTRACE */ - #ifdef CONFIG_FUNCTION_GRAPH_TRACER /* * Hook the return address and push it in the stack of return addresses @@ -167,7 +163,6 @@ out: return parent; } -#ifdef CONFIG_DYNAMIC_FTRACE /* * Patch the kernel code at ftrace_graph_caller location. The instruction * there is branch relative and save to prepare_ftrace_return. To disable @@ -217,5 +212,4 @@ int ftrace_disable_ftrace_graph_caller(void) } #endif /* CONFIG_64BIT */ -#endif /* CONFIG_DYNAMIC_FTRACE */ #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S index 433c6dbfa442..be6dbd9a81a7 100644 --- a/arch/s390/kernel/mcount.S +++ b/arch/s390/kernel/mcount.S @@ -15,11 +15,9 @@ ENTRY(ftrace_stub) br %r14 ENTRY(_mcount) -#ifdef CONFIG_DYNAMIC_FTRACE br %r14 ENTRY(ftrace_caller) -#endif stm %r2,%r5,16(%r15) bras %r1,1f 0: .long ftrace_trace_function diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S index 92f8994f37b8..5c7b506ef44d 100644 --- a/arch/s390/kernel/mcount64.S +++ b/arch/s390/kernel/mcount64.S @@ -21,13 +21,11 @@ ENTRY(ftrace_stub) #define STACK_PTREGS_GPRS (STACK_PTREGS + __PT_GPRS) ENTRY(_mcount) -#ifdef CONFIG_DYNAMIC_FTRACE br %r14 ENTRY(ftrace_caller) .globl ftrace_regs_caller .set ftrace_regs_caller,ftrace_caller -#endif lgr %r1,%r15 aghi %r15,-STACK_FRAME_SIZE stg %r1,__SF_BACKCHAIN(%r15) -- 1.8.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
