Merge tag 's390-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Vasily Gorbik:

 - Add support for ftrace with direct call and ftrace direct call
   samples.

 - Add support for kernel command lines longer than current 896 bytes
   and make its length configurable.

 - Add support for BEAR enhancement facility to improve last breaking
   event instruction tracking.

 - Add kprobes sanity checks and testcases to prevent kprobe in the mid
   of an instruction.

 - Allow concurrent access to /dev/hwc for the CPUMF users.

 - Various ftrace / jump label improvements.

 - Convert unwinder tests to KUnit.

 - Add s390_iommu_aperture kernel parameter to tweak the limits on
   concurrently usable DMA mappings.

 - Add ap.useirq AP module option which can be used to disable interrupt
   use.

 - Add add_disk() error handling support to block device drivers.

 - Drop arch specific and use generic implementation of strlcpy and
   strrchr.

 - Several __pa/__va usages fixes.

 - Various cio, crypto, pci, kernel doc and other small fixes and
   improvements all over the code.

[ Merge fixup as per https://lore.kernel.org/all/YXAqZ%2FEszRisunQw@osiris/ ]

* tag 's390-5.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (63 commits)
  s390: make command line configurable
  s390: support command lines longer than 896 bytes
  s390/kexec_file: move kernel image size check
  s390/pci: add s390_iommu_aperture kernel parameter
  s390/spinlock: remove incorrect kernel doc indicator
  s390/string: use generic strlcpy
  s390/string: use generic strrchr
  s390/ap: function rework based on compiler warning
  s390/cio: make ccw_device_dma_* more robust
  s390/vfio-ap: s390/crypto: fix all kernel-doc warnings
  s390/hmcdrv: fix kernel doc comments
  s390/ap: new module option ap.useirq
  s390/cpumf: Allow multiple processes to access /dev/hwc
  s390/bitops: return true/false (not 1/0) from bool functions
  s390: add support for BEAR enhancement facility
  s390: introduce nospec_uses_trampoline()
  s390: rename last_break to pgm_last_break
  s390/ptrace: add last_break member to pt_regs
  s390/sclp: sort out physical vs virtual pointers usage
  s390/setup: convert start and end initrd pointers to virtual
  ...

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index 9ea48bf0ee40..1901449768dd 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -157,6 +157,8 @@ static struct ap_queue_status ap_sm_recv(struct ap_queue *aq)
 	switch (status.response_code) {
 	case AP_RESPONSE_NORMAL:
 		aq->queue_count = max_t(int, 0, aq->queue_count - 1);
+		if (!status.queue_empty && !aq->queue_count)
+			aq->queue_count++;
 		if (aq->queue_count > 0)
 			mod_timer(&aq->timeout,
 				  jiffies + aq->request_timeout);
@@ -246,6 +248,7 @@ static enum ap_sm_wait ap_sm_write(struct ap_queue *aq)
 
 	if (aq->requestq_count <= 0)
 		return AP_SM_WAIT_NONE;
+
 	/* Start the next request on the queue. */
 	ap_msg = list_entry(aq->requestq.next, struct ap_message, list);
 #ifdef CONFIG_ZCRYPT_DEBUG
@@ -279,7 +282,7 @@ static enum ap_sm_wait ap_sm_write(struct ap_queue *aq)
 		aq->sm_state = AP_SM_STATE_RESET_WAIT;
 		return AP_SM_WAIT_TIMEOUT;
 	case AP_RESPONSE_INVALID_DOMAIN:
-		AP_DBF(DBF_WARN, "AP_RESPONSE_INVALID_DOMAIN on NQAP\n");
+		AP_DBF_WARN("%s RESPONSE_INVALID_DOMAIN on NQAP\n", __func__);
 		fallthrough;
 	case AP_RESPONSE_MESSAGE_TOO_BIG:
 	case AP_RESPONSE_REQ_FAC_NOT_INST:
@@ -571,8 +574,8 @@ static ssize_t reset_store(struct device *dev,
 	ap_wait(ap_sm_event(aq, AP_SM_EVENT_POLL));
 	spin_unlock_bh(&aq->lock);
 
-	AP_DBF(DBF_INFO, "reset queue=%02x.%04x triggered by user\n",
-	       AP_QID_CARD(aq->qid), AP_QID_QUEUE(aq->qid));
+	AP_DBF_INFO("%s reset queue=%02x.%04x triggered by user\n",
+		    __func__, AP_QID_CARD(aq->qid), AP_QID_QUEUE(aq->qid));
 
 	return count;
 }