Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/s390/linux

Pull more s390 updates from Heiko Carstens:
 "This includes one bpf/jit bug fix where the jit compiler could
  sometimes write generated code out of bounds of the allocated memory
  area.

  The rest of the patches are only cleanups and minor improvements"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/irq: reduce size of external interrupt handler hash array
  s390/compat,uid16: use current_cred()
  s390/ap_bus: use and-mask instead of a cast
  s390/ftrace: avoid pointer arithmetics with function pointers
  s390: make various functions static, add declarations to header files
  s390/compat signal: add couple of __force annotations
  s390/mm: add __releases()/__acquires() annotations to gmap_alloc_table()
  s390: keep Kconfig sorted
  s390/irq: rework irq subclass handling
  s390/irq: use hlists for external interrupt handler array
  s390/dumpstack: convert print_symbol to %pSR
  s390/perf: Remove print_hex_dump_bytes() debug output
  s390: update defconfig
  s390/bpf,jit: fix address randomization

arch/s390/Kconfig

@@ -62,6 +62,7 @@ config S390
 	def_bool y
 	select ARCH_DISCARD_MEMBLOCK
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_INLINE_READ_LOCK
 	select ARCH_INLINE_READ_LOCK_BH
@@ -91,7 +92,6 @@ config S390
 	select ARCH_INLINE_WRITE_UNLOCK_BH
 	select ARCH_INLINE_WRITE_UNLOCK_IRQ
 	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
-	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
 	select ARCH_SAVE_PAGE_KEYS if HIBERNATION
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT
@@ -135,15 +135,15 @@ config S390
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_UID16 if 32BIT
 	select HAVE_VIRT_CPU_ACCOUNTING
-	select VIRT_TO_BUS
 	select INIT_ALL_POSSIBLE
 	select KTIME_SCALAR if 32BIT
 	select MODULES_USE_ELF_RELA
-	select OLD_SIGSUSPEND3
 	select OLD_SIGACTION
+	select OLD_SIGSUSPEND3
 	select SYSCTL_EXCEPTION_TRACE
 	select USE_GENERIC_SMP_HELPERS if SMP
 	select VIRT_CPU_ACCOUNTING
+	select VIRT_TO_BUS
 
 config SCHED_OMIT_FRAME_POINTER
 	def_bool y

arch/s390/defconfig

@@ -1,14 +1,13 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_FHANDLE=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
 CONFIG_TASKSTATS=y
 CONFIG_TASK_DELAY_ACCT=y
 CONFIG_TASK_XACCT=y
 CONFIG_TASK_IO_ACCOUNTING=y
-CONFIG_AUDIT=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
 CONFIG_RCU_FAST_NO_HZ=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -27,6 +26,7 @@ CONFIG_RD_BZIP2=y
 CONFIG_RD_LZMA=y
 CONFIG_RD_XZ=y
 CONFIG_RD_LZO=y
+CONFIG_RD_LZ4=y
 CONFIG_EXPERT=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_PROFILING=y
@@ -38,11 +38,13 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_IBM_PARTITION=y
+# CONFIG_EFI_PARTITION is not set
 CONFIG_DEFAULT_DEADLINE=y
 CONFIG_HZ_100=y
 CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_KSM=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CRASH_DUMP=y
 CONFIG_BINFMT_MISC=m
 CONFIG_HIBERNATION=y
@@ -92,40 +94,49 @@ CONFIG_SCSI_CONSTANTS=y
 CONFIG_SCSI_LOGGING=y
 CONFIG_SCSI_SCAN_ASYNC=y
 CONFIG_ZFCP=y
+CONFIG_SCSI_VIRTIO=y
 CONFIG_NETDEVICES=y
 CONFIG_BONDING=m
 CONFIG_DUMMY=m
 CONFIG_EQUALIZER=m
 CONFIG_TUN=m
 CONFIG_VIRTIO_NET=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
 CONFIG_RAW_DRIVER=m
 CONFIG_VIRTIO_BALLOON=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
 CONFIG_EXT4_FS_SECURITY=y
+CONFIG_XFS_FS=y
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_XFS_RT=y
+CONFIG_BTRFS_FS=y
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_FANOTIFY=y
+CONFIG_FUSE_FS=y
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
 # CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
 CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_PAGEALLOC=y
 CONFIG_TIMER_STATS=y
 CONFIG_PROVE_LOCKING=y
-CONFIG_PROVE_RCU=y
 CONFIG_LOCK_STAT=y
 CONFIG_DEBUG_LOCKDEP=y
 CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_PROVE_RCU=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
 CONFIG_RCU_TRACE=y
-CONFIG_KPROBES_SANITY_TEST=y
-CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y
 CONFIG_LATENCYTOP=y
-CONFIG_DEBUG_PAGEALLOC=y
 CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_KPROBES_SANITY_TEST=y
 # CONFIG_STRICT_DEVMEM is not set
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_AUTHENC=m
 CONFIG_CRYPTO_TEST=m
@@ -137,8 +148,10 @@ CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_CRC32=m
 CONFIG_CRYPTO_MD4=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_RMD128=m
@@ -165,6 +178,8 @@ CONFIG_CRYPTO_TWOFISH=m
 CONFIG_CRYPTO_DEFLATE=m
 CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
+CONFIG_CRYPTO_LZ4=m
+CONFIG_CRYPTO_LZ4HC=m
 CONFIG_ZCRYPT=m
 CONFIG_CRYPTO_SHA1_S390=m
 CONFIG_CRYPTO_SHA256_S390=m

arch/s390/include/asm/irq.h

@@ -78,10 +78,14 @@ typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
 
 int register_external_interrupt(u16 code, ext_int_handler_t handler);
 int unregister_external_interrupt(u16 code, ext_int_handler_t handler);
-void service_subclass_irq_register(void);
-void service_subclass_irq_unregister(void);
-void measurement_alert_subclass_register(void);
-void measurement_alert_subclass_unregister(void);
+
+enum irq_subclass {
+	IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
+	IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
+};
+
+void irq_subclass_register(enum irq_subclass subclass);
+void irq_subclass_unregister(enum irq_subclass subclass);
 
 #define irq_canonicalize(irq)  (irq)
 

arch/s390/kernel/compat_linux.c

@@ -221,25 +221,26 @@ static int groups16_from_user(struct group_info *group_info, u16 __user *groupli
 
 asmlinkage long sys32_getgroups16(int gidsetsize, u16 __user *grouplist)
 {
+	const struct cred *cred = current_cred();
 	int i;
 
 	if (gidsetsize < 0)
 		return -EINVAL;
 
-	get_group_info(current->cred->group_info);
-	i = current->cred->group_info->ngroups;
+	get_group_info(cred->group_info);
+	i = cred->group_info->ngroups;
 	if (gidsetsize) {
 		if (i > gidsetsize) {
 			i = -EINVAL;
 			goto out;
 		}
-		if (groups16_to_user(grouplist, current->cred->group_info)) {
+		if (groups16_to_user(grouplist, cred->group_info)) {
 			i = -EFAULT;
 			goto out;
 		}
 	}
 out:
-	put_group_info(current->cred->group_info);
+	put_group_info(cred->group_info);
 	return i;
 }
 

arch/s390/kernel/compat_signal.c

@@ -332,9 +332,9 @@ static int setup_frame32(int sig, struct k_sigaction *ka,
 	/* Set up to return from userspace.  If provided, use a stub
 	   already in userspace.  */
 	if (ka->sa.sa_flags & SA_RESTORER) {
-		regs->gprs[14] = (__u64) ka->sa.sa_restorer | PSW32_ADDR_AMODE;
+		regs->gprs[14] = (__u64 __force) ka->sa.sa_restorer | PSW32_ADDR_AMODE;
 	} else {
-		regs->gprs[14] = (__u64) frame->retcode | PSW32_ADDR_AMODE;
+		regs->gprs[14] = (__u64 __force) frame->retcode | PSW32_ADDR_AMODE;
 		if (__put_user(S390_SYSCALL_OPCODE | __NR_sigreturn,
 			       (u16 __force __user *)(frame->retcode)))
 			goto give_sigsegv;
@@ -400,9 +400,9 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info,
 	/* Set up to return from userspace.  If provided, use a stub
 	   already in userspace.  */
 	if (ka->sa.sa_flags & SA_RESTORER) {
-		regs->gprs[14] = (__u64) ka->sa.sa_restorer | PSW32_ADDR_AMODE;
+		regs->gprs[14] = (__u64 __force) ka->sa.sa_restorer | PSW32_ADDR_AMODE;
 	} else {
-		regs->gprs[14] = (__u64) frame->retcode | PSW32_ADDR_AMODE;
+		regs->gprs[14] = (__u64 __force) frame->retcode | PSW32_ADDR_AMODE;
 		err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
 				  (u16 __force __user *)(frame->retcode));
 	}
@@ -417,7 +417,7 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info,
 	regs->psw.mask = PSW_MASK_BA |
 		(psw_user_bits & PSW_MASK_ASC) |
 		(regs->psw.mask & ~PSW_MASK_ASC);
-	regs->psw.addr = (__u64) ka->sa.sa_handler;
+	regs->psw.addr = (__u64 __force) ka->sa.sa_handler;
 
 	regs->gprs[2] = map_signal(sig);
 	regs->gprs[3] = (__force __u64) &frame->info;

arch/s390/kernel/dumpstack.c

@@ -40,14 +40,15 @@ __show_trace(unsigned long sp, unsigned long low, unsigned long high)
 {
 	struct stack_frame *sf;
 	struct pt_regs *regs;
+	unsigned long addr;
 
 	while (1) {
 		sp = sp & PSW_ADDR_INSN;
 		if (sp < low || sp > high - sizeof(*sf))
 			return sp;
 		sf = (struct stack_frame *) sp;
-		printk("([<%016lx>] ", sf->gprs[8] & PSW_ADDR_INSN);
-		print_symbol("%s)\n", sf->gprs[8] & PSW_ADDR_INSN);
+		addr = sf->gprs[8] & PSW_ADDR_INSN;
+		printk("([<%016lx>] %pSR)\n", addr, (void *)addr);
 		/* Follow the backchain. */
 		while (1) {
 			low = sp;
@@ -57,16 +58,16 @@ __show_trace(unsigned long sp, unsigned long low, unsigned long high)
 			if (sp <= low || sp > high - sizeof(*sf))
 				return sp;
 			sf = (struct stack_frame *) sp;
-			printk(" [<%016lx>] ", sf->gprs[8] & PSW_ADDR_INSN);
-			print_symbol("%s\n", sf->gprs[8] & PSW_ADDR_INSN);
+			addr = sf->gprs[8] & PSW_ADDR_INSN;
+			printk(" [<%016lx>] %pSR\n", addr, (void *)addr);
 		}
 		/* Zero backchain detected, check for interrupt frame. */
 		sp = (unsigned long) (sf + 1);
 		if (sp <= low || sp > high - sizeof(*regs))
 			return sp;
 		regs = (struct pt_regs *) sp;
-		printk(" [<%016lx>] ", regs->psw.addr & PSW_ADDR_INSN);
-		print_symbol("%s\n", regs->psw.addr & PSW_ADDR_INSN);
+		addr = regs->psw.addr & PSW_ADDR_INSN;
+		printk(" [<%016lx>] %pSR\n", addr, (void *)addr);
 		low = sp;
 		sp = regs->gprs[15];
 	}
@@ -128,8 +129,7 @@ static void show_last_breaking_event(struct pt_regs *regs)
 {
 #ifdef CONFIG_64BIT
 	printk("Last Breaking-Event-Address:\n");
-	printk(" [<%016lx>] ", regs->args[0] & PSW_ADDR_INSN);
-	print_symbol("%s\n", regs->args[0] & PSW_ADDR_INSN);
+	printk(" [<%016lx>] %pSR\n", regs->args[0], (void *)regs->args[0]);
 #endif
 }
 
@@ -143,10 +143,10 @@ void show_registers(struct pt_regs *regs)
 	char *mode;
 
 	mode = user_mode(regs) ? "User" : "Krnl";
-	printk("%s PSW : %p %p",
+	printk("%s PSW : %p %p (%pSR)\n",
 	       mode, (void *) regs->psw.mask,
+	       (void *) regs->psw.addr,
 	       (void *) regs->psw.addr);
-	print_symbol(" (%s)\n", regs->psw.addr & PSW_ADDR_INSN);
 	printk("           R:%x T:%x IO:%x EX:%x Key:%x M:%x W:%x "
 	       "P:%x AS:%x CC:%x PM:%x", mask_bits(regs, PSW_MASK_PER),
 	       mask_bits(regs, PSW_MASK_DAT), mask_bits(regs, PSW_MASK_IO),

arch/s390/kernel/entry.h

@@ -53,27 +53,21 @@ void handle_signal32(unsigned long sig, struct k_sigaction *ka,
 		    siginfo_t *info, sigset_t *oldset, struct pt_regs *regs);
 void do_notify_resume(struct pt_regs *regs);
 
-struct ext_code;
-void do_extint(struct pt_regs *regs);
+void __init init_IRQ(void);
+void do_IRQ(struct pt_regs *regs, int irq);
 void do_restart(void);
 void __init startup_init(void);
 void die(struct pt_regs *regs, const char *str);
-
+int setup_profiling_timer(unsigned int multiplier);
 void __init time_init(void);
+int pfn_is_nosave(unsigned long);
+void s390_early_resume(void);
+unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip);
 
 struct s390_mmap_arg_struct;
 struct fadvise64_64_args;
 struct old_sigaction;
 
-long sys_mmap2(struct s390_mmap_arg_struct __user  *arg);
-long sys_s390_ipc(uint call, int first, unsigned long second,
-	     unsigned long third, void __user *ptr);
-long sys_s390_personality(unsigned int personality);
-long sys_s390_fadvise64(int fd, u32 offset_high, u32 offset_low,
-		    size_t len, int advice);
-long sys_s390_fadvise64_64(struct fadvise64_64_args __user *args);
-long sys_s390_fallocate(int fd, int mode, loff_t offset, u32 len_high,
-			u32 len_low);
 long sys_sigreturn(void);
 long sys_rt_sigreturn(void);
 long sys32_sigreturn(void);

arch/s390/kernel/ftrace.c

@@ -15,6 +15,7 @@
 #include <linux/kprobes.h>
 #include <trace/syscall.h>
 #include <asm/asm-offsets.h>
+#include "entry.h"
 
 #ifdef CONFIG_DYNAMIC_FTRACE
 
@@ -177,15 +178,15 @@ int ftrace_enable_ftrace_graph_caller(void)
 
 	offset = ((void *) prepare_ftrace_return -
 		  (void *) ftrace_graph_caller) / 2;
-	return probe_kernel_write(ftrace_graph_caller + 2,
+	return probe_kernel_write((void *) ftrace_graph_caller + 2,
 				  &offset, sizeof(offset));
 }
 
 int ftrace_disable_ftrace_graph_caller(void)
 {
 	static unsigned short offset = 0x0002;
 
-	return probe_kernel_write(ftrace_graph_caller + 2,
+	return probe_kernel_write((void *) ftrace_graph_caller + 2,
 				  &offset, sizeof(offset));
 }