Merge tag 's390-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Improve ftrace code patching so that stop_machine is not required
   anymore. This requires a small common code patch acked by Steven
   Rostedt:

     https://lore.kernel.org/linux-s390/20210730220741.4da6fdf6@oasis.local.home/

 - Enable KCSAN for s390. This comes with a small common code change to
   fix a compile warning. Acked by Marco Elver:

     https://lore.kernel.org/r/20210729142811.1309391-1-hca@linux.ibm.com

 - Add KFENCE support for s390. This also comes with a minimal x86 patch
   from Marco Elver who said also this can be carried via the s390 tree:

     https://lore.kernel.org/linux-s390/YQJdarx6XSUQ1tFZ@elver.google.com/

 - More changes to prepare the decompressor for relocation.

 - Enable DAT also for CPU restart path.

 - Final set of register asm removal patches; leaving only three
   locations where needed and sane.

 - Add NNPA, Vector-Packed-Decimal-Enhancement Facility 2, PCI MIO
   support to hwcaps flags.

 - Cleanup hwcaps implementation.

 - Add new instructions to in-kernel disassembler.

 - Various QDIO cleanups.

 - Add SCLP debug feature.

 - Various other cleanups and improvements all over the place.

* tag 's390-5.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (105 commits)
  s390: remove SCHED_CORE from defconfigs
  s390/smp: do not use nodat_stack for secondary CPU start
  s390/smp: enable DAT before CPU restart callback is called
  s390: update defconfigs
  s390/ap: fix state machine hang after failure to enable irq
  KVM: s390: generate kvm hypercall functions
  s390/sclp: add tracing of SCLP interactions
  s390/debug: add early tracing support
  s390/debug: fix debug area life cycle
  s390/debug: keep debug data on resize
  s390/diag: make restart_part2 a local label
  s390/mm,pageattr: fix walk_pte_level() early exit
  s390: fix typo in linker script
  s390: remove do_signal() prototype and do_notify_resume() function
  s390/crypto: fix all kernel-doc warnings in vfio_ap_ops.c
  s390/pci: improve DMA translation init and exit
  s390/pci: simplify CLP List PCI handling
  s390/pci: handle FH state mismatch only on disable
  s390/pci: fix misleading rc in clp_set_pci_fn()
  s390/boot: factor out offset_vmlinux_info() function
  ...

1 files changed, 12 insertions, 1 deletions

diff --git a/mm/kfence/kfence_test.c b/mm/kfence/kfence_test.c
index 942cbc16ad26..eb6307c199ea 100644
--- a/mm/kfence/kfence_test.c
+++ b/mm/kfence/kfence_test.c
@@ -23,8 +23,15 @@
 #include <linux/tracepoint.h>
 #include <trace/events/printk.h>
 
+#include <asm/kfence.h>
+
 #include "kfence.h"
 
+/* May be overridden by <asm/kfence.h>. */
+#ifndef arch_kfence_test_address
+#define arch_kfence_test_address(addr) (addr)
+#endif
+
 /* Report as observed from console. */
 static struct {
 	spinlock_t lock;
@@ -82,6 +89,7 @@ static const char *get_access_type(const struct expect_report *r)
 /* Check observed report matches information in @r. */
 static bool report_matches(const struct expect_report *r)
 {
+	unsigned long addr = (unsigned long)r->addr;
 	bool ret = false;
 	unsigned long flags;
 	typeof(observed.lines) expect;
@@ -131,22 +139,25 @@ static bool report_matches(const struct expect_report *r)
 	switch (r->type) {
 	case KFENCE_ERROR_OOB:
 		cur += scnprintf(cur, end - cur, "Out-of-bounds %s at", get_access_type(r));
+		addr = arch_kfence_test_address(addr);
 		break;
 	case KFENCE_ERROR_UAF:
 		cur += scnprintf(cur, end - cur, "Use-after-free %s at", get_access_type(r));
+		addr = arch_kfence_test_address(addr);
 		break;
 	case KFENCE_ERROR_CORRUPTION:
 		cur += scnprintf(cur, end - cur, "Corrupted memory at");
 		break;
 	case KFENCE_ERROR_INVALID:
 		cur += scnprintf(cur, end - cur, "Invalid %s at", get_access_type(r));
+		addr = arch_kfence_test_address(addr);
 		break;
 	case KFENCE_ERROR_INVALID_FREE:
 		cur += scnprintf(cur, end - cur, "Invalid free of");
 		break;
 	}
 
-	cur += scnprintf(cur, end - cur, " 0x%p", (void *)r->addr);
+	cur += scnprintf(cur, end - cur, " 0x%p", (void *)addr);
 
 	spin_lock_irqsave(&observed.lock, flags);
 	if (!report_available())