linux-kernel - [PATCH v3] gcov: fix when CONFIG

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Date:   Tue,  2 Apr 2019 10:09:56 +0700
From:   trong@...roid.com
To:     oberpar@...ux.ibm.com, akpm@...ux-foundation.org
Cc:     ndesaulniers@...gle.com, ghackmann@...roid.com, linux-mm@...ck.org,
        kbuild-all@...org, rdunlap@...radead.org, lkp@...el.com,
        linux-kernel@...r.kernel.org, Tri Vo <trong@...roid.com>
Subject: [PATCH v3] gcov: fix when CONFIG_MODULES is not set

From: Tri Vo <trong@...roid.com>

Fixes: 8c3d220cb6b5 ("gcov: clang support")

Cc: Greg Hackmann <ghackmann@...roid.com>
Cc: Peter Oberparleiter <oberpar@...ux.ibm.com>
Cc: linux-mm@...ck.org
Cc: kbuild-all@...org
Reported-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kbuild test robot <lkp@...el.com>
Link: https://marc.info/?l=linux-mm&m=155384681109231&w=2
Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
Signed-off-by: Tri Vo <trong@...roid.com>
---
 kernel/gcov/clang.c   | 4 ++++
 kernel/gcov/gcc_3_4.c | 4 ++++
 kernel/gcov/gcc_4_7.c | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/kernel/gcov/clang.c b/kernel/gcov/clang.c
index 125c50397ba2..cfb9ce5e0fed 100644
--- a/kernel/gcov/clang.c
+++ b/kernel/gcov/clang.c
@@ -223,7 +223,11 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
  */
 bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
 {
+#ifdef CONFIG_MODULES
 	return within_module((unsigned long)info->filename, mod);
+#else
+	return false;
+#endif
 }
 
 /* Symbolic links to be created for each profiling data file. */
diff --git a/kernel/gcov/gcc_3_4.c b/kernel/gcov/gcc_3_4.c
index 801ee4b0b969..8fc30f178351 100644
--- a/kernel/gcov/gcc_3_4.c
+++ b/kernel/gcov/gcc_3_4.c
@@ -146,7 +146,11 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
  */
 bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
 {
+#ifdef CONFIG_MODULES
 	return within_module((unsigned long)info, mod);
+#else
+	return false;
+#endif
 }
 
 /* Symbolic links to be created for each profiling data file. */
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
index ec37563674d6..0b6886d4a4dd 100644
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -159,7 +159,11 @@ void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
  */
 bool gcov_info_within_module(struct gcov_info *info, struct module *mod)
 {
+#ifdef CONFIG_MODULES
 	return within_module((unsigned long)info, mod);
+#else
+	return false;
+#endif
 }
 
 /* Symbolic links to be created for each profiling data file. */
-- 
2.21.0.392.gf8f6787159e-goog