Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Martin Schwidefsky:

 - three merges for KVM/s390 with changes for vfio-ccw and cpacf. The
   patches are included in the KVM tree as well, let git sort it out.

 - add the new 'trng' random number generator

 - provide the secure key verification API for the pkey interface

 - introduce the z13 cpu counters to perf

 - add a new system call to set up the guarded storage facility

 - simplify TASK_SIZE and arch_get_unmapped_area

 - export the raw STSI data related to CPU topology to user space

 - ... and the usual churn of bug-fixes and cleanups.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (74 commits)
  s390/crypt: use the correct module alias for paes_s390.
  s390/cpacf: Introduce kma instruction
  s390/cpacf: query instructions use unique parameters for compatibility with KMA
  s390/trng: Introduce s390 TRNG device driver.
  s390/crypto: Provide s390 specific arch random functionality.
  s390/crypto: Add new subfunctions to the cpacf PRNO function.
  s390/crypto: Renaming PPNO to PRNO.
  s390/pageattr: avoid unnecessary page table splitting
  s390/mm: simplify arch_get_unmapped_area[_topdown]
  s390/mm: make TASK_SIZE independent from the number of page table levels
  s390/gs: add regset for the guarded storage broadcast control block
  s390/kvm: Add use_cmma field to mm_context_t
  s390/kvm: Add PGSTE manipulation functions
  vfio: ccw: improve error handling for vfio_ccw_mdev_remove
  vfio: ccw: remove unnecessary NULL checks of a pointer
  s390/spinlock: remove compare and delay instruction
  s390/spinlock: use atomic primitives for spinlocks
  s390/cpumf: simplify detection of guest samples
  s390/pci: remove forward declaration
  s390/pci: increase the PCI_NR_FUNCTIONS default
  ...

1 files changed, 4 insertions, 2 deletions

diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 17660e800e74..bb47c92476f0 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -83,6 +83,8 @@ static cpumask_t cpu_thread_map(unsigned int cpu)
 	return mask;
 }
 
+#define TOPOLOGY_CORE_BITS	64
+
 static void add_cpus_to_mask(struct topology_core *tl_core,
 			     struct mask_info *drawer,
 			     struct mask_info *book,
@@ -91,7 +93,7 @@ static void add_cpus_to_mask(struct topology_core *tl_core,
 	struct cpu_topology_s390 *topo;
 	unsigned int core;
 
-	for_each_set_bit(core, &tl_core->mask[0], TOPOLOGY_CORE_BITS) {
+	for_each_set_bit(core, &tl_core->mask, TOPOLOGY_CORE_BITS) {
 		unsigned int rcore;
 		int lcpu, i;
 
@@ -244,7 +246,7 @@ static void update_cpu_masks(void)
 
 void store_topology(struct sysinfo_15_1_x *info)
 {
-	stsi(info, 15, 1, min(topology_max_mnest, 4));
+	stsi(info, 15, 1, topology_mnest_limit());
 }
 
 static int __arch_update_cpu_topology(void)