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Message-Id: <20200624203200.78870-21-samitolvanen@google.com>
Date: Wed, 24 Jun 2020 13:31:58 -0700
From: Sami Tolvanen <samitolvanen@...gle.com>
To: Masahiro Yamada <masahiroy@...nel.org>, Will Deacon <will@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Paul E. McKenney" <paulmck@...nel.org>,
Kees Cook <keescook@...omium.org>, Nick Desaulniers <ndesaulniers@...gle.com>,
clang-built-linux@...glegroups.com, kernel-hardening@...ts.openwall.com,
linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org, x86@...nel.org,
Sami Tolvanen <samitolvanen@...gle.com>
Subject: [PATCH 20/22] x86, ftrace: disable recordmcount for ftrace_make_nop
Ignore mcount relocations in ftrace_make_nop.
Signed-off-by: Sami Tolvanen <samitolvanen@...gle.com>
---
arch/x86/kernel/ftrace.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 51504566b3a6..c3b28b81277b 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -121,6 +121,7 @@ ftrace_modify_code_direct(unsigned long ip, const char *old_code,
return 0;
}
+__nomcount
int ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, unsigned long addr)
{
unsigned long ip = rec->ip;
--
2.27.0.212.ge8ba1cc988-goog
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