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Date: Mon, 16 Oct 2017 15:51:54 -0700
From: Kees Cook <keescook@...omium.org>
To: Doug Ledford <dledford@...hat.com>
Cc: Mike Marciniszyn <mike.marciniszyn@...el.com>,
Dennis Dalessandro <dennis.dalessandro@...el.com>,
Sean Hefty <sean.hefty@...el.com>,
Hal Rosenstock <hal.rosenstock@...il.com>,
linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] IB/hfi1: Convert timers to use timer_setup()
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. Switches test of .data field to
.function, since .data will be going away.
Cc: Mike Marciniszyn <mike.marciniszyn@...el.com>
Cc: Dennis Dalessandro <dennis.dalessandro@...el.com>
Cc: Doug Ledford <dledford@...hat.com>
Cc: Sean Hefty <sean.hefty@...el.com>
Cc: Hal Rosenstock <hal.rosenstock@...il.com>
Cc: linux-rdma@...r.kernel.org
Signed-off-by: Kees Cook <keescook@...omium.org>
---
drivers/infiniband/hw/hfi1/aspm.h | 7 +++----
drivers/infiniband/hw/hfi1/chip.c | 19 ++++++++-----------
drivers/infiniband/hw/hfi1/driver.c | 7 +++----
drivers/infiniband/hw/hfi1/init.c | 2 +-
drivers/infiniband/hw/hfi1/mad.c | 4 ++--
drivers/infiniband/hw/hfi1/mad.h | 2 +-
drivers/infiniband/hw/hfi1/sdma.c | 8 ++++----
drivers/infiniband/hw/hfi1/verbs.c | 9 ++++-----
8 files changed, 26 insertions(+), 32 deletions(-)
diff --git a/drivers/infiniband/hw/hfi1/aspm.h b/drivers/infiniband/hw/hfi1/aspm.h
index 522b40ed9937..e8133870ee87 100644
--- a/drivers/infiniband/hw/hfi1/aspm.h
+++ b/drivers/infiniband/hw/hfi1/aspm.h
@@ -218,9 +218,9 @@ static inline void aspm_ctx_disable(struct hfi1_ctxtdata *rcd)
}
/* Timer function for re-enabling ASPM in the absence of interrupt activity */
-static inline void aspm_ctx_timer_function(unsigned long data)
+static inline void aspm_ctx_timer_function(struct timer_list *t)
{
- struct hfi1_ctxtdata *rcd = (struct hfi1_ctxtdata *)data;
+ struct hfi1_ctxtdata *rcd = from_timer(rcd, t, aspm_timer);
unsigned long flags;
spin_lock_irqsave(&rcd->aspm_lock, flags);
@@ -281,8 +281,7 @@ static inline void aspm_enable_all(struct hfi1_devdata *dd)
static inline void aspm_ctx_init(struct hfi1_ctxtdata *rcd)
{
spin_lock_init(&rcd->aspm_lock);
- setup_timer(&rcd->aspm_timer, aspm_ctx_timer_function,
- (unsigned long)rcd);
+ timer_setup(&rcd->aspm_timer, aspm_ctx_timer_function, 0);
rcd->aspm_intr_supported = rcd->dd->aspm_supported &&
aspm_mode == ASPM_MODE_DYNAMIC &&
rcd->ctxt < rcd->dd->first_dyn_alloc_ctxt;
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index d2d72e07b924..7d7b17047f6f 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -5538,9 +5538,9 @@ static void handle_cce_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
* associated with them.
*/
#define RCVERR_CHECK_TIME 10
-static void update_rcverr_timer(unsigned long opaque)
+static void update_rcverr_timer(struct timer_list *t)
{
- struct hfi1_devdata *dd = (struct hfi1_devdata *)opaque;
+ struct hfi1_devdata *dd = from_timer(dd, t, rcverr_timer);
struct hfi1_pportdata *ppd = dd->pport;
u32 cur_ovfl_cnt = read_dev_cntr(dd, C_RCV_OVF, CNTR_INVALID_VL);
@@ -5559,7 +5559,7 @@ static void update_rcverr_timer(unsigned long opaque)
static int init_rcverr(struct hfi1_devdata *dd)
{
- setup_timer(&dd->rcverr_timer, update_rcverr_timer, (unsigned long)dd);
+ timer_setup(&dd->rcverr_timer, update_rcverr_timer, 0);
/* Assume the hardware counter has been reset */
dd->rcv_ovfl_cnt = 0;
return mod_timer(&dd->rcverr_timer, jiffies + HZ * RCVERR_CHECK_TIME);
@@ -5567,9 +5567,8 @@ static int init_rcverr(struct hfi1_devdata *dd)
static void free_rcverr(struct hfi1_devdata *dd)
{
- if (dd->rcverr_timer.data)
+ if (dd->rcverr_timer.function)
del_timer_sync(&dd->rcverr_timer);
- dd->rcverr_timer.data = 0;
}
static void handle_rxe_err(struct hfi1_devdata *dd, u32 unused, u64 reg)
@@ -12122,9 +12121,8 @@ static void free_cntrs(struct hfi1_devdata *dd)
struct hfi1_pportdata *ppd;
int i;
- if (dd->synth_stats_timer.data)
+ if (dd->synth_stats_timer.function)
del_timer_sync(&dd->synth_stats_timer);
- dd->synth_stats_timer.data = 0;
ppd = (struct hfi1_pportdata *)(dd + 1);
for (i = 0; i < dd->num_pports; i++, ppd++) {
kfree(ppd->cntrs);
@@ -12400,9 +12398,9 @@ static void do_update_synth_timer(struct work_struct *work)
}
}
-static void update_synth_timer(unsigned long opaque)
+static void update_synth_timer(struct timer_list *t)
{
- struct hfi1_devdata *dd = (struct hfi1_devdata *)opaque;
+ struct hfi1_devdata *dd = from_timer(dd, t, synth_stats_timer);
queue_work(dd->update_cntr_wq, &dd->update_cntr_work);
mod_timer(&dd->synth_stats_timer, jiffies + HZ * SYNTH_CNT_TIME);
@@ -12420,8 +12418,7 @@ static int init_cntrs(struct hfi1_devdata *dd)
const int bit_type_32_sz = strlen(bit_type_32);
/* set up the stats timer; the add_timer is done at the end */
- setup_timer(&dd->synth_stats_timer, update_synth_timer,
- (unsigned long)dd);
+ timer_setup(&dd->synth_stats_timer, update_synth_timer, 0);
/***********************/
/* per device counters */
diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c
index 85a425ef740e..880a0e75ad0a 100644
--- a/drivers/infiniband/hw/hfi1/driver.c
+++ b/drivers/infiniband/hw/hfi1/driver.c
@@ -1252,9 +1252,9 @@ void shutdown_led_override(struct hfi1_pportdata *ppd)
write_csr(dd, DCC_CFG_LED_CNTRL, 0);
}
-static void run_led_override(unsigned long opaque)
+static void run_led_override(struct timer_list *t)
{
- struct hfi1_pportdata *ppd = (struct hfi1_pportdata *)opaque;
+ struct hfi1_pportdata *ppd = from_timer(ppd, t, led_override_timer);
struct hfi1_devdata *dd = ppd->dd;
unsigned long timeout;
int phase_idx;
@@ -1298,8 +1298,7 @@ void hfi1_start_led_override(struct hfi1_pportdata *ppd, unsigned int timeon,
* timeout so the handler will be called soon to look at our request.
*/
if (!timer_pending(&ppd->led_override_timer)) {
- setup_timer(&ppd->led_override_timer, run_led_override,
- (unsigned long)ppd);
+ timer_setup(&ppd->led_override_timer, run_led_override, 0);
ppd->led_override_timer.expires = jiffies + 1;
add_timer(&ppd->led_override_timer);
atomic_set(&ppd->led_override_timer_active, 1);
diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index 36c8a4ae8278..b5c2efce73f2 100644
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -1025,7 +1025,7 @@ static void stop_timers(struct hfi1_devdata *dd)
for (pidx = 0; pidx < dd->num_pports; ++pidx) {
ppd = dd->pport + pidx;
- if (ppd->led_override_timer.data) {
+ if (ppd->led_override_timer.function) {
del_timer_sync(&ppd->led_override_timer);
atomic_set(&ppd->led_override_timer_active, 0);
}
diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c
index 07b80faf1675..081fb5f4cff3 100644
--- a/drivers/infiniband/hw/hfi1/mad.c
+++ b/drivers/infiniband/hw/hfi1/mad.c
@@ -399,9 +399,9 @@ static void send_trap(struct hfi1_ibport *ibp, struct trap_node *trap)
ib_free_send_mad(send_buf);
}
-void hfi1_handle_trap_timer(unsigned long data)
+void hfi1_handle_trap_timer(struct timer_list *t)
{
- struct hfi1_ibport *ibp = (struct hfi1_ibport *)data;
+ struct hfi1_ibport *ibp = from_timer(ibp, t, rvp.trap_timer);
struct trap_node *trap = NULL;
unsigned long flags;
int i;
diff --git a/drivers/infiniband/hw/hfi1/mad.h b/drivers/infiniband/hw/hfi1/mad.h
index 4c1245072093..a4f8ac16332c 100644
--- a/drivers/infiniband/hw/hfi1/mad.h
+++ b/drivers/infiniband/hw/hfi1/mad.h
@@ -428,6 +428,6 @@ struct sc2vlnt {
COUNTER_MASK(1, 4))
void hfi1_event_pkey_change(struct hfi1_devdata *dd, u8 port);
-void hfi1_handle_trap_timer(unsigned long data);
+void hfi1_handle_trap_timer(struct timer_list *t);
#endif /* _HFI1_MAD_H */
diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index e7df7794c97e..dabd71495b1b 100644
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -491,10 +491,10 @@ static void sdma_err_progress_check_schedule(struct sdma_engine *sde)
}
}
-static void sdma_err_progress_check(unsigned long data)
+static void sdma_err_progress_check(struct timer_list *t)
{
unsigned index;
- struct sdma_engine *sde = (struct sdma_engine *)data;
+ struct sdma_engine *sde = from_timer(sde, t, err_progress_check_timer);
dd_dev_err(sde->dd, "SDE progress check event\n");
for (index = 0; index < sde->dd->num_sdma; index++) {
@@ -1453,8 +1453,8 @@ int sdma_init(struct hfi1_devdata *dd, u8 port)
sde->progress_check_head = 0;
- setup_timer(&sde->err_progress_check_timer,
- sdma_err_progress_check, (unsigned long)sde);
+ timer_setup(&sde->err_progress_check_timer,
+ sdma_err_progress_check, 0);
sde->descq = dma_zalloc_coherent(
&dd->pcidev->dev,
diff --git a/drivers/infiniband/hw/hfi1/verbs.c b/drivers/infiniband/hw/hfi1/verbs.c
index e232f3c608b4..038fe221c27f 100644
--- a/drivers/infiniband/hw/hfi1/verbs.c
+++ b/drivers/infiniband/hw/hfi1/verbs.c
@@ -667,9 +667,9 @@ void hfi1_16B_rcv(struct hfi1_packet *packet)
* This is called from a timer to check for QPs
* which need kernel memory in order to send a packet.
*/
-static void mem_timer(unsigned long data)
+static void mem_timer(struct timer_list *t)
{
- struct hfi1_ibdev *dev = (struct hfi1_ibdev *)data;
+ struct hfi1_ibdev *dev = from_timer(dev, t, mem_timer);
struct list_head *list = &dev->memwait;
struct rvt_qp *qp = NULL;
struct iowait *wait;
@@ -1636,8 +1636,7 @@ static void init_ibport(struct hfi1_pportdata *ppd)
for (i = 0; i < RVT_MAX_TRAP_LISTS ; i++)
INIT_LIST_HEAD(&ibp->rvp.trap_lists[i].list);
- setup_timer(&ibp->rvp.trap_timer, hfi1_handle_trap_timer,
- (unsigned long)ibp);
+ timer_setup(&ibp->rvp.trap_timer, hfi1_handle_trap_timer, 0);
spin_lock_init(&ibp->rvp.lock);
/* Set the prefix to the default value (see ch. 4.1.1) */
@@ -1844,7 +1843,7 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
/* Only need to initialize non-zero fields. */
- setup_timer(&dev->mem_timer, mem_timer, (unsigned long)dev);
+ timer_setup(&dev->mem_timer, mem_timer, 0);
seqlock_init(&dev->iowait_lock);
seqlock_init(&dev->txwait_lock);
--
2.7.4
--
Kees Cook
Pixel Security
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