Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
authorLinus Torvalds <torvalds@linux-foundation.org>
Thu, 27 Oct 2016 17:08:58 +0000 (10:08 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 27 Oct 2016 17:08:58 +0000 (10:08 -0700)
Pull SCSI fixes from James Bottomley:
 "Two small fixes: one is a fatal section mismatch (reference to init
  after it's discarded) and the other two are iscsi locking fixes"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: NCR5380: no longer mark irq probing as __init
  scsi: be2iscsi: Replace _bh with _irqsave/irqrestore
  scsi: libiscsi: Fix locking in __iscsi_conn_send_pdu

drivers/scsi/NCR5380.c
drivers/scsi/be2iscsi/be_main.c
drivers/scsi/libiscsi.c

index db27390..790babc 100644 (file)
@@ -353,7 +353,7 @@ static void NCR5380_print_phase(struct Scsi_Host *instance)
 #endif
 
 
-static int probe_irq __initdata;
+static int probe_irq;
 
 /**
  * probe_intr  -       helper for IRQ autoprobe
@@ -365,7 +365,7 @@ static int probe_irq __initdata;
  * used by the IRQ probe code.
  */
 
-static irqreturn_t __init probe_intr(int irq, void *dev_id)
+static irqreturn_t probe_intr(int irq, void *dev_id)
 {
        probe_irq = irq;
        return IRQ_HANDLED;
@@ -380,7 +380,7 @@ static irqreturn_t __init probe_intr(int irq, void *dev_id)
  * and then looking to see what interrupt actually turned up.
  */
 
-static int __init __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance,
+static int __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance,
                                                int possible)
 {
        struct NCR5380_hostdata *hostdata = shost_priv(instance);
index 68138a6..d9239c2 100644 (file)
@@ -900,8 +900,9 @@ void hwi_ring_cq_db(struct beiscsi_hba *phba,
 static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
 {
        struct sgl_handle *psgl_handle;
+       unsigned long flags;
 
-       spin_lock_bh(&phba->io_sgl_lock);
+       spin_lock_irqsave(&phba->io_sgl_lock, flags);
        if (phba->io_sgl_hndl_avbl) {
                beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
                            "BM_%d : In alloc_io_sgl_handle,"
@@ -919,14 +920,16 @@ static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
                        phba->io_sgl_alloc_index++;
        } else
                psgl_handle = NULL;
-       spin_unlock_bh(&phba->io_sgl_lock);
+       spin_unlock_irqrestore(&phba->io_sgl_lock, flags);
        return psgl_handle;
 }
 
 static void
 free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
 {
-       spin_lock_bh(&phba->io_sgl_lock);
+       unsigned long flags;
+
+       spin_lock_irqsave(&phba->io_sgl_lock, flags);
        beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
                    "BM_%d : In free_,io_sgl_free_index=%d\n",
                    phba->io_sgl_free_index);
@@ -941,7 +944,7 @@ free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
                             "value there=%p\n", phba->io_sgl_free_index,
                             phba->io_sgl_hndl_base
                             [phba->io_sgl_free_index]);
-                spin_unlock_bh(&phba->io_sgl_lock);
+                spin_unlock_irqrestore(&phba->io_sgl_lock, flags);
                return;
        }
        phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
@@ -950,7 +953,7 @@ free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
                phba->io_sgl_free_index = 0;
        else
                phba->io_sgl_free_index++;
-       spin_unlock_bh(&phba->io_sgl_lock);
+       spin_unlock_irqrestore(&phba->io_sgl_lock, flags);
 }
 
 static inline struct wrb_handle *
@@ -958,15 +961,16 @@ beiscsi_get_wrb_handle(struct hwi_wrb_context *pwrb_context,
                       unsigned int wrbs_per_cxn)
 {
        struct wrb_handle *pwrb_handle;
+       unsigned long flags;
 
-       spin_lock_bh(&pwrb_context->wrb_lock);
+       spin_lock_irqsave(&pwrb_context->wrb_lock, flags);
        pwrb_handle = pwrb_context->pwrb_handle_base[pwrb_context->alloc_index];
        pwrb_context->wrb_handles_available--;
        if (pwrb_context->alloc_index == (wrbs_per_cxn - 1))
                pwrb_context->alloc_index = 0;
        else
                pwrb_context->alloc_index++;
-       spin_unlock_bh(&pwrb_context->wrb_lock);
+       spin_unlock_irqrestore(&pwrb_context->wrb_lock, flags);
 
        if (pwrb_handle)
                memset(pwrb_handle->pwrb, 0, sizeof(*pwrb_handle->pwrb));
@@ -1001,14 +1005,16 @@ beiscsi_put_wrb_handle(struct hwi_wrb_context *pwrb_context,
                       struct wrb_handle *pwrb_handle,
                       unsigned int wrbs_per_cxn)
 {
-       spin_lock_bh(&pwrb_context->wrb_lock);
+       unsigned long flags;
+
+       spin_lock_irqsave(&pwrb_context->wrb_lock, flags);
        pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle;
        pwrb_context->wrb_handles_available++;
        if (pwrb_context->free_index == (wrbs_per_cxn - 1))
                pwrb_context->free_index = 0;
        else
                pwrb_context->free_index++;
-       spin_unlock_bh(&pwrb_context->wrb_lock);
+       spin_unlock_irqrestore(&pwrb_context->wrb_lock, flags);
 }
 
 /**
@@ -1037,8 +1043,9 @@ free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
 static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
 {
        struct sgl_handle *psgl_handle;
+       unsigned long flags;
 
-       spin_lock_bh(&phba->mgmt_sgl_lock);
+       spin_lock_irqsave(&phba->mgmt_sgl_lock, flags);
        if (phba->eh_sgl_hndl_avbl) {
                psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
                phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
@@ -1056,14 +1063,16 @@ static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
                        phba->eh_sgl_alloc_index++;
        } else
                psgl_handle = NULL;
-       spin_unlock_bh(&phba->mgmt_sgl_lock);
+       spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags);
        return psgl_handle;
 }
 
 void
 free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
 {
-       spin_lock_bh(&phba->mgmt_sgl_lock);
+       unsigned long flags;
+
+       spin_lock_irqsave(&phba->mgmt_sgl_lock, flags);
        beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
                    "BM_%d : In  free_mgmt_sgl_handle,"
                    "eh_sgl_free_index=%d\n",
@@ -1078,7 +1087,7 @@ free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
                            "BM_%d : Double Free in eh SGL ,"
                            "eh_sgl_free_index=%d\n",
                            phba->eh_sgl_free_index);
-               spin_unlock_bh(&phba->mgmt_sgl_lock);
+               spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags);
                return;
        }
        phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
@@ -1088,7 +1097,7 @@ free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
                phba->eh_sgl_free_index = 0;
        else
                phba->eh_sgl_free_index++;
-       spin_unlock_bh(&phba->mgmt_sgl_lock);
+       spin_unlock_irqrestore(&phba->mgmt_sgl_lock, flags);
 }
 
 static void
index c051694..f9b6fba 100644 (file)
@@ -791,9 +791,9 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 
 free_task:
        /* regular RX path uses back_lock */
-       spin_lock_bh(&session->back_lock);
+       spin_lock(&session->back_lock);
        __iscsi_put_task(task);
-       spin_unlock_bh(&session->back_lock);
+       spin_unlock(&session->back_lock);
        return NULL;
 }