From 03c79cc56e4497cbd09d74a73c1bd0d1d9a8a16c Mon Sep 17 00:00:00 2001 From: Seokmann Ju Date: Mon, 29 Jan 2007 10:22:30 -0800 Subject: [SCSI] qla2xxx: Remove unnecessary spinlock primitive - mbx_reg_lock. Since, mailbox commands are executed in a synchronous manner, there is no need to have a separate spinlock primitive to protect data/register access shared by callers. Signed-off-by: Seokmann Ju Signed-off-by: Andrew Vasquez Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_mbx.c | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'drivers/scsi/qla2xxx/qla_mbx.c') diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index c52bd9ca8d7a..c6f0cdf4cdc4 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -55,7 +55,6 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp) uint16_t __iomem *optr; uint32_t cnt; uint32_t mboxes; - unsigned long mbx_flags = 0; unsigned long wait_time; rval = QLA_SUCCESS; @@ -81,10 +80,6 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp) /* Save mailbox command for debug */ ha->mcp = mcp; - /* Try to get mailbox register access */ - if (!abort_active) - spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags); - DEBUG11(printk("scsi(%ld): prepare to issue mbox cmd=0x%x.\n", ha->host_no, mcp->mb[0])); @@ -161,9 +156,6 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp) WRT_REG_WORD(®->isp.hccr, HCCR_SET_HOST_INT); spin_unlock_irqrestore(&ha->hardware_lock, flags); - if (!abort_active) - spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags); - /* Wait for either the timer to expire * or the mbox completion interrupt */ @@ -184,8 +176,6 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp) else WRT_REG_WORD(®->isp.hccr, HCCR_SET_HOST_INT); spin_unlock_irqrestore(&ha->hardware_lock, flags); - if (!abort_active) - spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags); wait_time = jiffies + mcp->tov * HZ; /* wait at most tov secs */ while (!ha->flags.mbox_int) { @@ -201,9 +191,6 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp) } /* while */ } - if (!abort_active) - spin_lock_irqsave(&ha->mbx_reg_lock, mbx_flags); - /* Check whether we timed out */ if (ha->flags.mbox_int) { uint16_t *iptr2; @@ -256,9 +243,6 @@ qla2x00_mailbox_command(scsi_qla_host_t *ha, mbx_cmd_t *mcp) rval = QLA_FUNCTION_TIMEOUT; } - if (!abort_active) - spin_unlock_irqrestore(&ha->mbx_reg_lock, mbx_flags); - ha->flags.mbox_busy = 0; /* Clean up */ -- cgit v1.2.3