Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "Mostly small bug fixes and trivial updates.

  The major new core update is a change to the way device, target and
  host reference counting is done to try to make it more robust (this
  change has soaked for a while to try to winkle out any bugs)"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: pm8001: Fix typo 'the the' in comment
  scsi: megaraid_sas: Remove redundant variable cmd_type
  scsi: FlashPoint: Remove redundant variable bm_int_st
  scsi: zfcp: Fix missing auto port scan and thus missing target ports
  scsi: core: Call blk_mq_free_tag_set() earlier
  scsi: core: Simplify LLD module reference counting
  scsi: core: Make sure that hosts outlive targets
  scsi: core: Make sure that targets outlive devices
  scsi: ufs: ufs-pci: Correct check for RESET DSM
  scsi: target: core: De-RCU of se_lun and se_lun acl
  scsi: target: core: Fix race during ACL removal
  scsi: ufs: core: Correct ufshcd_shutdown() flow
  scsi: ufs: core: Increase the maximum data buffer size
  scsi: lpfc: Check the return value of alloc_workqueue()

2 files changed, 15 insertions, 9 deletions

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 3bc0709a5dc2..6bc679d22927 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -8326,6 +8326,7 @@ static struct scsi_host_template ufshcd_driver_template = {
 	.cmd_per_lun		= UFSHCD_CMD_PER_LUN,
 	.can_queue		= UFSHCD_CAN_QUEUE,
 	.max_segment_size	= PRDT_DATA_BYTE_COUNT_MAX,
+	.max_sectors		= (1 << 20) / SECTOR_SIZE, /* 1 MiB */
 	.max_host_blocked	= 1,
 	.track_queue_depth	= 1,
 	.sdev_groups		= ufshcd_driver_groups,
@@ -9508,12 +9509,8 @@ EXPORT_SYMBOL(ufshcd_runtime_resume);
 int ufshcd_shutdown(struct ufs_hba *hba)
 {
 	if (ufshcd_is_ufs_dev_poweroff(hba) && ufshcd_is_link_off(hba))
-		goto out;
-
-	pm_runtime_get_sync(hba->dev);
+		ufshcd_suspend(hba);
 
-	ufshcd_suspend(hba);
-out:
 	hba->is_powered = false;
 	/* allow force shutdown even in case of errors */
 	return 0;
diff --git a/drivers/ufs/host/ufshcd-pci.c b/drivers/ufs/host/ufshcd-pci.c
index 24af1f389bf2..1c91f43e15c8 100644
--- a/drivers/ufs/host/ufshcd-pci.c
+++ b/drivers/ufs/host/ufshcd-pci.c
@@ -24,7 +24,7 @@ struct ufs_host {
 	void (*late_init)(struct ufs_hba *hba);
 };
 
-enum {
+enum intel_ufs_dsm_func_id {
 	INTEL_DSM_FNS		=  0,
 	INTEL_DSM_RESET		=  1,
 };
@@ -42,6 +42,15 @@ static const guid_t intel_dsm_guid =
 	GUID_INIT(0x1A4832A0, 0x7D03, 0x43CA,
 		  0xB0, 0x20, 0xF6, 0xDC, 0xD1, 0x2A, 0x19, 0x50);
 
+static bool __intel_dsm_supported(struct intel_host *host,
+				  enum intel_ufs_dsm_func_id fn)
+{
+	return fn < 32 && fn >= 0 && (host->dsm_fns & (1u << fn));
+}
+
+#define INTEL_DSM_SUPPORTED(host, name) \
+	__intel_dsm_supported(host, INTEL_DSM_##name)
+
 static int __intel_dsm(struct intel_host *intel_host, struct device *dev,
 		       unsigned int fn, u32 *result)
 {
@@ -71,7 +80,7 @@ out:
 static int intel_dsm(struct intel_host *intel_host, struct device *dev,
 		     unsigned int fn, u32 *result)
 {
-	if (fn > 31 || !(intel_host->dsm_fns & (1 << fn)))
+	if (!__intel_dsm_supported(intel_host, fn))
 		return -EOPNOTSUPP;
 
 	return __intel_dsm(intel_host, dev, fn, result);
@@ -300,7 +309,7 @@ static int ufs_intel_device_reset(struct ufs_hba *hba)
 {
 	struct intel_host *host = ufshcd_get_variant(hba);
 
-	if (host->dsm_fns & INTEL_DSM_RESET) {
+	if (INTEL_DSM_SUPPORTED(host, RESET)) {
 		u32 result = 0;
 		int err;
 
@@ -342,7 +351,7 @@ static int ufs_intel_common_init(struct ufs_hba *hba)
 		return -ENOMEM;
 	ufshcd_set_variant(hba, host);
 	intel_dsm_init(host, hba->dev);
-	if (host->dsm_fns & INTEL_DSM_RESET) {
+	if (INTEL_DSM_SUPPORTED(host, RESET)) {
 		if (hba->vops->device_reset)
 			hba->caps |= UFSHCD_CAP_DEEPSLEEP;
 	} else {