Merge tag 's390-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Heiko Carstens:
 "Just a couple of small improvements, bug fixes and cleanups:

   - Add Eric Farman as maintainer for s390 virtio drivers.

   - Improve machine check handling, and avoid incorrectly injecting a
     machine check into a kvm guest.

   - Add cond_resched() call to gmap page table walker in order to avoid
     possible huge latencies. Also use non-quiesing sske instruction to
     speed up storage key handling.

   - Add __GFP_NORETRY to KEXEC_CONTROL_MEMORY_GFP so s390 behaves
     similar like common code.

   - Get sie control block address from correct stack slot in perf event
     code. This fixes potential random memory accesses.

   - Change uaccess code so that the exception handler sets the result
     of get_user() and __get_kernel_nofault() to zero in case of a
     fault. Until now this was done via input parameters for inline
     assemblies. Doing it via fault handling is what most or even all
     other architectures are doing.

   - Couple of other small cleanups and fixes"

* tag 's390-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/stack: add union to reflect kvm stack slot usages
  s390/stack: merge empty stack frame slots
  s390/uaccess: whitespace cleanup
  s390/uaccess: use __noreturn instead of __attribute__((noreturn))
  s390/uaccess: use exception handler to zero result on get_user() failure
  s390/uaccess: use symbolic names for inline assembler operands
  s390/mcck: isolate SIE instruction when setting CIF_MCCK_GUEST flag
  s390/mm: use non-quiescing sske for KVM switch to keyed guest
  s390/gmap: voluntarily schedule during key setting
  MAINTAINERS: Update s390 virtio-ccw
  s390/kexec: add __GFP_NORETRY to KEXEC_CONTROL_MEMORY_GFP
  s390/Kconfig.debug: fix indentation
  s390/Kconfig: fix indentation
  s390/perf: obtain sie_block from the right address
  s390: generate register offsets into pt_regs automatically
  s390: simplify early program check handler
  s390/crypto: fix scatterwalk_unmap() callers in AES-GCM

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 08cc86a0db90..432c8c987256 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -149,7 +149,7 @@ static __init void setup_topology(void)
 	topology_max_mnest = max_mnest;
 }
 
-static void early_pgm_check_handler(struct pt_regs *regs)
+void __do_early_pgm_check(struct pt_regs *regs)
 {
 	if (!fixup_exception(regs))
 		disabled_wait();
@@ -159,12 +159,11 @@ static noinline __init void setup_lowcore_early(void)
 {
 	psw_t psw;
 
-	psw.addr = (unsigned long)s390_base_pgm_handler;
+	psw.addr = (unsigned long)early_pgm_check_handler;
 	psw.mask = PSW_MASK_BASE | PSW_DEFAULT_KEY | PSW_MASK_EA | PSW_MASK_BA;
 	if (IS_ENABLED(CONFIG_KASAN))
 		psw.mask |= PSW_MASK_DAT;
 	S390_lowcore.program_new_psw = psw;
-	s390_base_pgm_handler_fn = early_pgm_check_handler;
 	S390_lowcore.preempt_count = INIT_PREEMPT_COUNT;
 }