4.19-stable review patch. If anyone has any objections, please let me know.
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From: WANG Chao chao.wang@ucloud.cn
commit e4f358916d528d479c3c12bd2fd03f2d5a576380 upstream.
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 chao.wang@ucloud.cn Signed-off-by: Borislav Petkov bp@suse.de Reviewed-by: Zhenzhong Duan zhenzhong.duan@oracle.com Reviewed-by: Masahiro Yamada yamada.masahiro@socionext.com Cc: "H. Peter Anvin" hpa@zytor.com Cc: Andi Kleen ak@linux.intel.com Cc: Andrew Morton akpm@linux-foundation.org Cc: Andy Lutomirski luto@kernel.org Cc: Arnd Bergmann arnd@arndb.de Cc: Daniel Borkmann daniel@iogearbox.net Cc: David Woodhouse dwmw@amazon.co.uk Cc: Geert Uytterhoeven geert@linux-m68k.org Cc: Jessica Yu jeyu@kernel.org Cc: Jiri Kosina jkosina@suse.cz Cc: Kees Cook keescook@chromium.org Cc: Konrad Rzeszutek Wilk konrad.wilk@oracle.com Cc: Luc Van Oostenryck luc.vanoostenryck@gmail.com Cc: Michal Marek michal.lkml@markovi.net Cc: Miguel Ojeda miguel.ojeda.sandonis@gmail.com Cc: Peter Zijlstra peterz@infradead.org Cc: Tim Chen tim.c.chen@linux.intel.com Cc: Vasily Gorbik gor@linux.ibm.com Cc: linux-kbuild@vger.kernel.org Cc: srinivas.eeda@oracle.com Cc: stable stable@vger.kernel.org Cc: x86-ml x86@kernel.org Link: https://lkml.kernel.org/r/20181210163725.95977-1-chao.wang@ucloud.cn Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/x86/kernel/cpu/bugs.c | 2 +- include/linux/compiler-gcc.h | 2 +- include/linux/module.h | 2 +- scripts/mod/modpost.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-)
--- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -213,7 +213,7 @@ static enum spectre_v2_mitigation spectr 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) --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -75,7 +75,7 @@ #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) #endif
-#ifdef RETPOLINE +#ifdef CONFIG_RETPOLINE #define __noretpoline __attribute__((indirect_branch("keep"))) #endif
--- a/include/linux/module.h +++ b/include/linux/module.h @@ -818,7 +818,7 @@ static inline void module_bug_finalize(c 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) --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -2157,7 +2157,7 @@ static void add_intree_flag(struct buffe /* 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"); }