[PATCH] scsi: ipr: Convert timers to use timer_setup()

From: Kees Cook
Date: Wed Oct 25 2017 - 06:06:28 EST


In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Brian King <brking@xxxxxxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxxxx>
Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Cc: linux-scsi@xxxxxxxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
drivers/scsi/ipr.c | 30 +++++++++++++++---------------
1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index f838bd73befa..d53429371127 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -694,7 +694,7 @@ static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
ipr_cmd->sibling = NULL;
ipr_cmd->eh_comp = NULL;
ipr_cmd->fast_done = fast_done;
- init_timer(&ipr_cmd->timer);
+ timer_setup(&ipr_cmd->timer, NULL, 0);
}

/**
@@ -990,15 +990,14 @@ static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
**/
static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
void (*done) (struct ipr_cmnd *),
- void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
+ void (*timeout_func) (struct timer_list *), u32 timeout)
{
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);

ipr_cmd->done = done;

- ipr_cmd->timer.data = (unsigned long) ipr_cmd;
ipr_cmd->timer.expires = jiffies + timeout;
- ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
+ ipr_cmd->timer.function = (TIMER_FUNC_TYPE)timeout_func;

add_timer(&ipr_cmd->timer);

@@ -1080,7 +1079,7 @@ static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
* none
**/
static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
- void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
+ void (*timeout_func) (struct timer_list *),
u32 timeout)
{
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
@@ -2664,8 +2663,9 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
* Return value:
* none
**/
-static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_timeout(struct timer_list *t)
{
+ struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
unsigned long lock_flags = 0;
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;

@@ -2696,8 +2696,9 @@ static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
* Return value:
* none
**/
-static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_oper_timeout(struct timer_list *t)
{
+ struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
unsigned long lock_flags = 0;
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;

@@ -5449,8 +5450,9 @@ static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
* Return value:
* none
**/
-static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_abort_timeout(struct timer_list *t)
{
+ struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
struct ipr_cmnd *reset_cmd;
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
struct ipr_cmd_pkt *cmd_pkt;
@@ -8271,8 +8273,9 @@ static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
* Return value:
* none
**/
-static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
+static void ipr_reset_timer_done(struct timer_list *t)
{
+ struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
unsigned long lock_flags = 0;

@@ -8308,9 +8311,8 @@ static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
ipr_cmd->done = ipr_reset_ioa_job;

- ipr_cmd->timer.data = (unsigned long) ipr_cmd;
ipr_cmd->timer.expires = jiffies + timeout;
- ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
+ ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_reset_timer_done;
add_timer(&ipr_cmd->timer);
}

@@ -8394,9 +8396,8 @@ static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
}
}

- ipr_cmd->timer.data = (unsigned long) ipr_cmd;
ipr_cmd->timer.expires = jiffies + stage_time * HZ;
- ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
+ ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_oper_timeout;
ipr_cmd->done = ipr_reset_ioa_job;
add_timer(&ipr_cmd->timer);

@@ -8466,9 +8467,8 @@ static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
return IPR_RC_JOB_CONTINUE;
}

- ipr_cmd->timer.data = (unsigned long) ipr_cmd;
ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
- ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
+ ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_oper_timeout;
ipr_cmd->done = ipr_reset_ioa_job;
add_timer(&ipr_cmd->timer);
list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
--
2.7.4


--
Kees Cook
Pixel Security