4 small fixes, 3 in drivers with the remaining core fix being a fixup
to the one in the last pull request which didn't entirely move checking
of scsi_host_busy() out from under the host lock.
The patch is available here:
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes
The short changelog is:
Alice Chao (1):
scsi: ufs: core: Fix shift issue in ufshcd_clear_cmd()
Hannes Reinecke (1):
scsi: lpfc: Use unsigned type for num_sge
Ming Lei (1):
scsi: core: Move scsi_host_busy() out of host lock if it is for per-command
SEO HOYOUNG (1):
scsi: ufs: core: Remove the ufshcd_release() in ufshcd_err_handling_prepare()
And the diffstat:
drivers/scsi/lpfc/lpfc_scsi.c | 12 ++++++------
drivers/scsi/scsi_error.c | 3 ++-
drivers/scsi/scsi_lib.c | 4 +++-
drivers/ufs/core/ufshcd.c | 5 +++--
4 files changed, 14 insertions(+), 10 deletions(-)
With full diff below.
James
---
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index d26941b131fd..bf879d81846b 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1918,7 +1918,7 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
*
* Returns the number of SGEs added to the SGL.
**/
-static int
+static uint32_t
lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
struct sli4_sge *sgl, int datasegcnt,
struct lpfc_io_buf *lpfc_cmd)
@@ -1926,8 +1926,8 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
struct scatterlist *sgde = NULL; /* s/g data entry */
struct sli4_sge_diseed *diseed = NULL;
dma_addr_t physaddr;
- int i = 0, num_sge = 0, status;
- uint32_t reftag;
+ int i = 0, status;
+ uint32_t reftag, num_sge = 0;
uint8_t txop, rxop;
#ifdef CONFIG_SCSI_LPFC_DEBUG_FS
uint32_t rc;
@@ -2099,7 +2099,7 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
*
* Returns the number of SGEs added to the SGL.
**/
-static int
+static uint32_t
lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
struct sli4_sge *sgl, int datacnt, int protcnt,
struct lpfc_io_buf *lpfc_cmd)
@@ -2123,8 +2123,8 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
uint32_t rc;
#endif
uint32_t checking = 1;
- uint32_t dma_offset = 0;
- int num_sge = 0, j = 2;
+ uint32_t dma_offset = 0, num_sge = 0;
+ int j = 2;
struct sli4_hybrid_sgl *sgl_xtra = NULL;
sgpe = scsi_prot_sglist(sc);
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 4f455884fdc4..612489afe8d2 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -282,11 +282,12 @@ static void scsi_eh_inc_host_failed(struct rcu_head *head)
{
struct scsi_cmnd *scmd = container_of(head, typeof(*scmd), rcu);
struct Scsi_Host *shost = scmd->device->host;
+ unsigned int busy = scsi_host_busy(shost);
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
shost->host_failed++;
- scsi_eh_wakeup(shost, scsi_host_busy(shost));
+ scsi_eh_wakeup(shost, busy);
spin_unlock_irqrestore(shost->host_lock, flags);
}
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 1fb80eae9a63..df5ac03d5d6c 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -278,9 +278,11 @@ static void scsi_dec_host_busy(struct Scsi_Host *shost, struct scsi_cmnd *cmd)
rcu_read_lock();
__clear_bit(SCMD_STATE_INFLIGHT, &cmd->state);
if (unlikely(scsi_host_in_recovery(shost))) {
+ unsigned int busy = scsi_host_busy(shost);
+
spin_lock_irqsave(shost->host_lock, flags);
if (shost->host_failed || shost->host_eh_scheduled)
- scsi_eh_wakeup(shost, scsi_host_busy(shost));
+ scsi_eh_wakeup(shost, busy);
spin_unlock_irqrestore(shost->host_lock, flags);
}
rcu_read_unlock();
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 029d017fc1b6..d77b25b79ae3 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -3057,7 +3057,7 @@ bool ufshcd_cmd_inflight(struct scsi_cmnd *cmd)
*/
static int ufshcd_clear_cmd(struct ufs_hba *hba, u32 task_tag)
{
- u32 mask = 1U << task_tag;
+ u32 mask;
unsigned long flags;
int err;
@@ -3075,6 +3075,8 @@ static int ufshcd_clear_cmd(struct ufs_hba *hba, u32 task_tag)
return 0;
}
+ mask = 1U << task_tag;
+
/* clear outstanding transaction before retry */
spin_lock_irqsave(hba->host->host_lock, flags);
ufshcd_utrl_clear(hba, mask);
@@ -6352,7 +6354,6 @@ static void ufshcd_err_handling_prepare(struct ufs_hba *hba)
ufshcd_hold(hba);
if (!ufshcd_is_clkgating_allowed(hba))
ufshcd_setup_clocks(hba, true);
- ufshcd_release(hba);
pm_op = hba->is_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM;
ufshcd_vops_resume(hba, pm_op);
} else {
