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Merge tag 'v4.16-rc5' into locking/core, to pick up fixes
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Ingo Molnar committed Mar 12, 2018
2 parents fbfcd01 + 0c8efd6 commit 9884afa
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Showing 88 changed files with 850 additions and 1,084 deletions.
6 changes: 5 additions & 1 deletion Documentation/devicetree/bindings/dma/mv-xor-v2.txt
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,11 @@ Required properties:
interrupts.

Optional properties:
- clocks: Optional reference to the clock used by the XOR engine.
- clocks: Optional reference to the clocks used by the XOR engine.
- clock-names: mandatory if there is a second clock, in this case the
name must be "core" for the first clock and "reg" for the second
one


Example:

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2 changes: 1 addition & 1 deletion Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
VERSION = 4
PATCHLEVEL = 16
SUBLEVEL = 0
EXTRAVERSION = -rc4
EXTRAVERSION = -rc5
NAME = Fearless Coyote

# *DOCUMENTATION*
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11 changes: 1 addition & 10 deletions arch/x86/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -2307,23 +2307,14 @@ choice
it can be used to assist security vulnerability exploitation.

This setting can be changed at boot time via the kernel command
line parameter vsyscall=[native|emulate|none].
line parameter vsyscall=[emulate|none].

On a system with recent enough glibc (2.14 or newer) and no
static binaries, you can say None without a performance penalty
to improve security.

If unsure, select "Emulate".

config LEGACY_VSYSCALL_NATIVE
bool "Native"
help
Actual executable code is located in the fixed vsyscall
address mapping, implementing time() efficiently. Since
this makes the mapping executable, it can be used during
security vulnerability exploitation (traditionally as
ROP gadgets). This configuration is not recommended.

config LEGACY_VSYSCALL_EMULATE
bool "Emulate"
help
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16 changes: 1 addition & 15 deletions arch/x86/entry/entry_64_compat.S
Original file line number Diff line number Diff line change
Expand Up @@ -363,9 +363,7 @@ ENTRY(entry_INT80_compat)
pushq 2*8(%rdi) /* regs->ip */
pushq 1*8(%rdi) /* regs->orig_ax */

movq (%rdi), %rdi /* restore %rdi */

pushq %rdi /* pt_regs->di */
pushq (%rdi) /* pt_regs->di */
pushq %rsi /* pt_regs->si */
pushq %rdx /* pt_regs->dx */
pushq %rcx /* pt_regs->cx */
Expand Down Expand Up @@ -406,15 +404,3 @@ ENTRY(entry_INT80_compat)
TRACE_IRQS_ON
jmp swapgs_restore_regs_and_return_to_usermode
END(entry_INT80_compat)

ENTRY(stub32_clone)
/*
* The 32-bit clone ABI is: clone(..., int tls_val, int *child_tidptr).
* The 64-bit clone ABI is: clone(..., int *child_tidptr, int tls_val).
*
* The native 64-bit kernel's sys_clone() implements the latter,
* so we need to swap arguments here before calling it:
*/
xchg %r8, %rcx
jmp sys_clone
ENDPROC(stub32_clone)
38 changes: 19 additions & 19 deletions arch/x86/entry/syscalls/syscall_32.tbl
Original file line number Diff line number Diff line change
Expand Up @@ -8,12 +8,12 @@
#
0 i386 restart_syscall sys_restart_syscall
1 i386 exit sys_exit
2 i386 fork sys_fork sys_fork
2 i386 fork sys_fork
3 i386 read sys_read
4 i386 write sys_write
5 i386 open sys_open compat_sys_open
6 i386 close sys_close
7 i386 waitpid sys_waitpid sys32_waitpid
7 i386 waitpid sys_waitpid compat_sys_x86_waitpid
8 i386 creat sys_creat
9 i386 link sys_link
10 i386 unlink sys_unlink
Expand Down Expand Up @@ -78,7 +78,7 @@
69 i386 ssetmask sys_ssetmask
70 i386 setreuid sys_setreuid16
71 i386 setregid sys_setregid16
72 i386 sigsuspend sys_sigsuspend sys_sigsuspend
72 i386 sigsuspend sys_sigsuspend
73 i386 sigpending sys_sigpending compat_sys_sigpending
74 i386 sethostname sys_sethostname
75 i386 setrlimit sys_setrlimit compat_sys_setrlimit
Expand All @@ -96,7 +96,7 @@
87 i386 swapon sys_swapon
88 i386 reboot sys_reboot
89 i386 readdir sys_old_readdir compat_sys_old_readdir
90 i386 mmap sys_old_mmap sys32_mmap
90 i386 mmap sys_old_mmap compat_sys_x86_mmap
91 i386 munmap sys_munmap
92 i386 truncate sys_truncate compat_sys_truncate
93 i386 ftruncate sys_ftruncate compat_sys_ftruncate
Expand Down Expand Up @@ -126,7 +126,7 @@
117 i386 ipc sys_ipc compat_sys_ipc
118 i386 fsync sys_fsync
119 i386 sigreturn sys_sigreturn sys32_sigreturn
120 i386 clone sys_clone stub32_clone
120 i386 clone sys_clone compat_sys_x86_clone
121 i386 setdomainname sys_setdomainname
122 i386 uname sys_newuname
123 i386 modify_ldt sys_modify_ldt
Expand Down Expand Up @@ -186,8 +186,8 @@
177 i386 rt_sigtimedwait sys_rt_sigtimedwait compat_sys_rt_sigtimedwait
178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo
179 i386 rt_sigsuspend sys_rt_sigsuspend
180 i386 pread64 sys_pread64 sys32_pread
181 i386 pwrite64 sys_pwrite64 sys32_pwrite
180 i386 pread64 sys_pread64 compat_sys_x86_pread
181 i386 pwrite64 sys_pwrite64 compat_sys_x86_pwrite
182 i386 chown sys_chown16
183 i386 getcwd sys_getcwd
184 i386 capget sys_capget
Expand All @@ -196,14 +196,14 @@
187 i386 sendfile sys_sendfile compat_sys_sendfile
188 i386 getpmsg
189 i386 putpmsg
190 i386 vfork sys_vfork sys_vfork
190 i386 vfork sys_vfork
191 i386 ugetrlimit sys_getrlimit compat_sys_getrlimit
192 i386 mmap2 sys_mmap_pgoff
193 i386 truncate64 sys_truncate64 sys32_truncate64
194 i386 ftruncate64 sys_ftruncate64 sys32_ftruncate64
195 i386 stat64 sys_stat64 sys32_stat64
196 i386 lstat64 sys_lstat64 sys32_lstat64
197 i386 fstat64 sys_fstat64 sys32_fstat64
193 i386 truncate64 sys_truncate64 compat_sys_x86_truncate64
194 i386 ftruncate64 sys_ftruncate64 compat_sys_x86_ftruncate64
195 i386 stat64 sys_stat64 compat_sys_x86_stat64
196 i386 lstat64 sys_lstat64 compat_sys_x86_lstat64
197 i386 fstat64 sys_fstat64 compat_sys_x86_fstat64
198 i386 lchown32 sys_lchown
199 i386 getuid32 sys_getuid
200 i386 getgid32 sys_getgid
Expand Down Expand Up @@ -231,7 +231,7 @@
# 222 is unused
# 223 is unused
224 i386 gettid sys_gettid
225 i386 readahead sys_readahead sys32_readahead
225 i386 readahead sys_readahead compat_sys_x86_readahead
226 i386 setxattr sys_setxattr
227 i386 lsetxattr sys_lsetxattr
228 i386 fsetxattr sys_fsetxattr
Expand All @@ -256,7 +256,7 @@
247 i386 io_getevents sys_io_getevents compat_sys_io_getevents
248 i386 io_submit sys_io_submit compat_sys_io_submit
249 i386 io_cancel sys_io_cancel
250 i386 fadvise64 sys_fadvise64 sys32_fadvise64
250 i386 fadvise64 sys_fadvise64 compat_sys_x86_fadvise64
# 251 is available for reuse (was briefly sys_set_zone_reclaim)
252 i386 exit_group sys_exit_group
253 i386 lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie
Expand All @@ -278,7 +278,7 @@
269 i386 fstatfs64 sys_fstatfs64 compat_sys_fstatfs64
270 i386 tgkill sys_tgkill
271 i386 utimes sys_utimes compat_sys_utimes
272 i386 fadvise64_64 sys_fadvise64_64 sys32_fadvise64_64
272 i386 fadvise64_64 sys_fadvise64_64 compat_sys_x86_fadvise64_64
273 i386 vserver
274 i386 mbind sys_mbind
275 i386 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy
Expand Down Expand Up @@ -306,7 +306,7 @@
297 i386 mknodat sys_mknodat
298 i386 fchownat sys_fchownat
299 i386 futimesat sys_futimesat compat_sys_futimesat
300 i386 fstatat64 sys_fstatat64 sys32_fstatat
300 i386 fstatat64 sys_fstatat64 compat_sys_x86_fstatat
301 i386 unlinkat sys_unlinkat
302 i386 renameat sys_renameat
303 i386 linkat sys_linkat
Expand All @@ -320,7 +320,7 @@
311 i386 set_robust_list sys_set_robust_list compat_sys_set_robust_list
312 i386 get_robust_list sys_get_robust_list compat_sys_get_robust_list
313 i386 splice sys_splice
314 i386 sync_file_range sys_sync_file_range sys32_sync_file_range
314 i386 sync_file_range sys_sync_file_range compat_sys_x86_sync_file_range
315 i386 tee sys_tee
316 i386 vmsplice sys_vmsplice compat_sys_vmsplice
317 i386 move_pages sys_move_pages compat_sys_move_pages
Expand All @@ -330,7 +330,7 @@
321 i386 signalfd sys_signalfd compat_sys_signalfd
322 i386 timerfd_create sys_timerfd_create
323 i386 eventfd sys_eventfd
324 i386 fallocate sys_fallocate sys32_fallocate
324 i386 fallocate sys_fallocate compat_sys_x86_fallocate
325 i386 timerfd_settime sys_timerfd_settime compat_sys_timerfd_settime
326 i386 timerfd_gettime sys_timerfd_gettime compat_sys_timerfd_gettime
327 i386 signalfd4 sys_signalfd4 compat_sys_signalfd4
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16 changes: 3 additions & 13 deletions arch/x86/entry/vsyscall/vsyscall_64.c
Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,8 @@
#define CREATE_TRACE_POINTS
#include "vsyscall_trace.h"

static enum { EMULATE, NATIVE, NONE } vsyscall_mode =
#if defined(CONFIG_LEGACY_VSYSCALL_NATIVE)
NATIVE;
#elif defined(CONFIG_LEGACY_VSYSCALL_NONE)
static enum { EMULATE, NONE } vsyscall_mode =
#ifdef CONFIG_LEGACY_VSYSCALL_NONE
NONE;
#else
EMULATE;
Expand All @@ -56,8 +54,6 @@ static int __init vsyscall_setup(char *str)
if (str) {
if (!strcmp("emulate", str))
vsyscall_mode = EMULATE;
else if (!strcmp("native", str))
vsyscall_mode = NATIVE;
else if (!strcmp("none", str))
vsyscall_mode = NONE;
else
Expand Down Expand Up @@ -139,10 +135,6 @@ bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)

WARN_ON_ONCE(address != regs->ip);

/* This should be unreachable in NATIVE mode. */
if (WARN_ON(vsyscall_mode == NATIVE))
return false;

if (vsyscall_mode == NONE) {
warn_bad_vsyscall(KERN_INFO, regs,
"vsyscall attempted with vsyscall=none");
Expand Down Expand Up @@ -370,9 +362,7 @@ void __init map_vsyscall(void)

if (vsyscall_mode != NONE) {
__set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall,
vsyscall_mode == NATIVE
? PAGE_KERNEL_VSYSCALL
: PAGE_KERNEL_VVAR);
PAGE_KERNEL_VVAR);
set_vsyscall_pgtable_user_bits(swapper_pg_dir);
}

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2 changes: 1 addition & 1 deletion arch/x86/events/intel/uncore_snbep.c
Original file line number Diff line number Diff line change
Expand Up @@ -3606,7 +3606,7 @@ static struct intel_uncore_type skx_uncore_imc = {
};

static struct attribute *skx_upi_uncore_formats_attr[] = {
&format_attr_event_ext.attr,
&format_attr_event.attr,
&format_attr_umask_ext.attr,
&format_attr_edge.attr,
&format_attr_inv.attr,
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