From 56e33afd7757d5da2664fb797f2544ce167176be Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Fri, 10 May 2019 23:47:50 +0200 Subject: livepatch: Remove klp_check_compiler_support() The only purpose of klp_check_compiler_support() is to make sure that we are not using ftrace on x86 via mcount (because that's executed only after prologue has already happened, and that's too late for livepatching purposes). Now that mcount is not supported by ftrace any more, there is no need for klp_check_compiler_support() either. Link: http://lkml.kernel.org/r/nycvar.YFH.7.76.1905102346100.17054@cbobk.fhfr.pm Reported-by: Linus Torvalds Signed-off-by: Jiri Kosina Signed-off-by: Steven Rostedt (VMware) --- arch/x86/include/asm/livepatch.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/x86/include/asm') diff --git a/arch/x86/include/asm/livepatch.h b/arch/x86/include/asm/livepatch.h index 2f2bdf0662f8..a66f6706c2de 100644 --- a/arch/x86/include/asm/livepatch.h +++ b/arch/x86/include/asm/livepatch.h @@ -24,11 +24,6 @@ #include #include -static inline int klp_check_compiler_support(void) -{ - return 0; -} - static inline void klp_arch_set_pc(struct pt_regs *regs, unsigned long ip) { regs->ip = ip; -- cgit v1.2.3