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authorWANG Chao <[email protected]>2018-12-11 00:37:25 +0800
committerBorislav Petkov <[email protected]>2019-01-09 10:35:56 +0100
commite4f358916d528d479c3c12bd2fd03f2d5a576380 (patch)
tree5b1a4b2fee733f2c3b30798a1827443079bc0619
parent90802938f7e88045ace123e105e22e8c3e7f9c7e (diff)
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE
Commit 4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support") replaced the RETPOLINE define with CONFIG_RETPOLINE checks. Remove the remaining pieces. [ bp: Massage commit message. ] Fixes: 4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support") Signed-off-by: WANG Chao <[email protected]> Signed-off-by: Borislav Petkov <[email protected]> Reviewed-by: Zhenzhong Duan <[email protected]> Reviewed-by: Masahiro Yamada <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: David Woodhouse <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Jessica Yu <[email protected]> Cc: Jiri Kosina <[email protected]> Cc: Kees Cook <[email protected]> Cc: Konrad Rzeszutek Wilk <[email protected]> Cc: Luc Van Oostenryck <[email protected]> Cc: Michal Marek <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Tim Chen <[email protected]> Cc: Vasily Gorbik <[email protected]> Cc: [email protected] Cc: [email protected] Cc: stable <[email protected]> Cc: x86-ml <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
-rw-r--r--arch/x86/kernel/cpu/bugs.c2
-rw-r--r--include/linux/compiler-gcc.h2
-rw-r--r--include/linux/module.h2
-rw-r--r--scripts/mod/modpost.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 8654b8b0c848..1de0f4170178 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -215,7 +215,7 @@ static enum spectre_v2_mitigation spectre_v2_enabled __ro_after_init =
static enum spectre_v2_user_mitigation spectre_v2_user __ro_after_init =
SPECTRE_V2_USER_NONE;
-#ifdef RETPOLINE
+#ifdef CONFIG_RETPOLINE
static bool spectre_v2_bad_module;
bool retpoline_module_ok(bool has_retpoline)
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 5776da43da97..dd8268f5f5f0 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -68,7 +68,7 @@
*/
#define uninitialized_var(x) x = x
-#ifdef RETPOLINE
+#ifdef CONFIG_RETPOLINE
#define __noretpoline __attribute__((__indirect_branch__("keep")))
#endif
diff --git a/include/linux/module.h b/include/linux/module.h
index 9a21fe3509af..8fa38d3e7538 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -828,7 +828,7 @@ static inline void module_bug_finalize(const Elf_Ehdr *hdr,
static inline void module_bug_cleanup(struct module *mod) {}
#endif /* CONFIG_GENERIC_BUG */
-#ifdef RETPOLINE
+#ifdef CONFIG_RETPOLINE
extern bool retpoline_module_ok(bool has_retpoline);
#else
static inline bool retpoline_module_ok(bool has_retpoline)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 0de2fb236640..26bf886bd168 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -2185,7 +2185,7 @@ static void add_intree_flag(struct buffer *b, int is_intree)
/* Cannot check for assembler */
static void add_retpoline(struct buffer *b)
{
- buf_printf(b, "\n#ifdef RETPOLINE\n");
+ buf_printf(b, "\n#ifdef CONFIG_RETPOLINE\n");
buf_printf(b, "MODULE_INFO(retpoline, \"Y\");\n");
buf_printf(b, "#endif\n");
}