[GIT PULL] x86 fixes

Ingo Molnar
2019-01-11T07:15:02Z

Linus,

Please pull the latest x86-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus

# HEAD: e4f358916d528d479c3c12bd2fd03f2d5a576380 x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE

A 32-bit build fix, CONFIG_RETPOLINE fixes and rename CONFIG_RESCTRL to
CONFIG_X86_RESCTRL.

out-of-topic modifications in x86-urgent-for-linus:
-----------------------------------------------------
include/linux/module.h # e4f358916d52: x86, modpost: Replace last r
samples/seccomp/Makefile # a77d1d196bc6: samples/seccomp: Fix 32-bit
scripts/mod/modpost.c # e4f358916d52: x86, modpost: Replace last r

Thanks,

Ingo

------------------>
Borislav Petkov (1):
x86/cache: Rename config option to CONFIG_X86_RESCTRL

Tycho Andersen (1):
samples/seccomp: Fix 32-bit build

WANG Chao (1):
x86, modpost: Replace last remnants of RETPOLINE with CONFIG_RETPOLINE

Documentation/x86/resctrl_ui.txt | 2 +-
arch/x86/Kconfig | 2 +-
arch/x86/include/asm/resctrl_sched.h | 4 ++--
arch/x86/kernel/cpu/Makefile | 2 +-
arch/x86/kernel/cpu/bugs.c | 2 +-
arch/x86/kernel/cpu/resctrl/Makefile | 4 ++--
include/linux/compiler-gcc.h | 2 +-
include/linux/module.h | 2 +-
include/linux/sched.h | 2 +-
samples/seccomp/Makefile | 1 +
scripts/mod/modpost.c | 2 +-
11 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/Documentation/x86/resctrl_ui.txt b/Documentation/x86/resctrl_ui.txt
index d9aed8303984..e8e8d14d3c4e 100644
--- a/Documentation/x86/resctrl_ui.txt
+++ b/Documentation/x86/resctrl_ui.txt
@@ -9,7 +9,7 @@ Fenghua Yu <fenghua.yu@intel.com>
Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>

-This feature is enabled by the CONFIG_RESCTRL and the X86 /proc/cpuinfo
+This feature is enabled by the CONFIG_X86_RESCTRL and the x86 /proc/cpuinfo
flag bits:
RDT (Resource Director Technology) Allocation - "rdt_a"
CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6185d4f33296..15af091611e2 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -446,7 +446,7 @@ config RETPOLINE
branches. Requires a compiler with -mindirect-branch=thunk-extern
support for full protection. The kernel may run slower.

-config RESCTRL
+config X86_RESCTRL
bool "Resource Control support"
depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
select KERNFS
diff --git a/arch/x86/include/asm/resctrl_sched.h b/arch/x86/include/asm/resctrl_sched.h
index 54990fe2a3ae..40ebddde6ac2 100644
--- a/arch/x86/include/asm/resctrl_sched.h
+++ b/arch/x86/include/asm/resctrl_sched.h
@@ -2,7 +2,7 @@
#ifndef _ASM_X86_RESCTRL_SCHED_H
#define _ASM_X86_RESCTRL_SCHED_H

-#ifdef CONFIG_RESCTRL
+#ifdef CONFIG_X86_RESCTRL

#include <linux/sched.h>
#include <linux/jump_label.h>
@@ -88,6 +88,6 @@ static inline void resctrl_sched_in(void)

static inline void resctrl_sched_in(void) {}

-#endif /* CONFIG_RESCTRL */
+#endif /* CONFIG_X86_RESCTRL */

#endif /* _ASM_X86_RESCTRL_SCHED_H */
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index ac78f90aea56..b6fa0869f7aa 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -39,7 +39,7 @@ obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o
obj-$(CONFIG_X86_MCE) += mce/
obj-$(CONFIG_MTRR) += mtrr/
obj-$(CONFIG_MICROCODE) += microcode/
-obj-$(CONFIG_RESCTRL) += resctrl/
+obj-$(CONFIG_X86_RESCTRL) += resctrl/

obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o

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/arch/x86/kernel/cpu/resctrl/Makefile b/arch/x86/kernel/cpu/resctrl/Makefile
index 6895049ceef7..1cabe6fd8e11 100644
--- a/arch/x86/kernel/cpu/resctrl/Makefile
+++ b/arch/x86/kernel/cpu/resctrl/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_RESCTRL) += core.o rdtgroup.o monitor.o
-obj-$(CONFIG_RESCTRL) += ctrlmondata.o pseudo_lock.o
+obj-$(CONFIG_X86_RESCTRL) += core.o rdtgroup.o monitor.o
+obj-$(CONFIG_X86_RESCTRL) += ctrlmondata.o pseudo_lock.o
CFLAGS_pseudo_lock.o = -I$(src)
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/include/linux/sched.h b/include/linux/sched.h
index 89541d248893..224666226e87 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -995,7 +995,7 @@ struct task_struct {
/* cg_list protected by css_set_lock and tsk->alloc_lock: */
struct list_head cg_list;
#endif
-#ifdef CONFIG_RESCTRL
+#ifdef CONFIG_X86_RESCTRL
u32 closid;
u32 rmid;
#endif
diff --git a/samples/seccomp/Makefile b/samples/seccomp/Makefile
index 4920903c8009..fb43a814d4c0 100644
--- a/samples/seccomp/Makefile
+++ b/samples/seccomp/Makefile
@@ -34,6 +34,7 @@ HOSTCFLAGS_bpf-direct.o += $(MFLAG)
HOSTCFLAGS_dropper.o += $(MFLAG)
HOSTCFLAGS_bpf-helper.o += $(MFLAG)
HOSTCFLAGS_bpf-fancy.o += $(MFLAG)
+HOSTCFLAGS_user-trap.o += $(MFLAG)
HOSTLDLIBS_bpf-direct += $(MFLAG)
HOSTLDLIBS_bpf-fancy += $(MFLAG)
HOSTLDLIBS_dropper += $(MFLAG)
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");
}