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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/g…
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…it/jejb/scsi

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
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Linus Torvalds committed Oct 27, 2016
2 parents 4a3c390 + 602432c commit 18c2152
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Showing 3 changed files with 28 additions and 19 deletions.
6 changes: 3 additions & 3 deletions drivers/scsi/NCR5380.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand All @@ -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;
Expand All @@ -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);
Expand Down
37 changes: 23 additions & 14 deletions drivers/scsi/be2iscsi/be_main.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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,"
Expand All @@ -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);
Expand All @@ -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;
Expand All @@ -950,23 +953,24 @@ 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 *
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));
Expand Down Expand Up @@ -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);
}

/**
Expand Down Expand Up @@ -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;
Expand All @@ -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",
Expand All @@ -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;
Expand All @@ -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
Expand Down
4 changes: 2 additions & 2 deletions drivers/scsi/libiscsi.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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;
}

Expand Down

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