[PATCH] mmc: Convert timers to use timer_setup()

From: Kees Cook
Date: Tue Oct 24 2017 - 11:03:58 EST

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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: Ludovic Desroches <ludovic.desroches@xxxxxxxxxxxxx>
Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Cc: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Cc: Carlo Caione <carlo@xxxxxxxxxx>
Cc: Kevin Hilman <khilman@xxxxxxxxxxxx>
Cc: Nicolas Pitre <nico@xxxxxxxxxxx>
Cc: Jarkko Lavinen <jarkko.lavinen@xxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Alex Dubov <oakad@xxxxxxxxx>
Cc: Bruce Chang <brucechang@xxxxxxxxxx>
Cc: Harald Welte <HaraldWelte@xxxxxxxxxxx>
Cc: Tony Olech <tony.olech@xxxxxxxxxxxxxxxxxxxxxx>
Cc: Pierre Ossman <pierre@xxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
Cc: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Cc: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
Cc: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>
Cc: Allen <allen.lkml@xxxxxxxxx>
Cc: linux-mmc@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-amlogic@xxxxxxxxxxxxxxxxxxx
Cc: linux-omap@xxxxxxxxxxxxxxx
Cc: linux-usb@xxxxxxxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
drivers/mmc/host/atmel-mci.c | 13 ++++++-------
drivers/mmc/host/dw_mmc.c | 21 +++++++++------------
drivers/mmc/host/jz4740_mmc.c | 7 +++----
drivers/mmc/host/meson-mx-sdio.c | 7 +++----
drivers/mmc/host/mvsdio.c | 6 +++---
drivers/mmc/host/mxcmmc.c | 7 +++----
drivers/mmc/host/omap.c | 20 +++++++++-----------
drivers/mmc/host/sdhci.c | 13 ++++++-------
drivers/mmc/host/tifm_sd.c | 6 +++---
drivers/mmc/host/via-sdmmc.c | 6 +++---
drivers/mmc/host/vub300.c | 17 +++++++++--------
drivers/mmc/host/wbsd.c | 7 +++----
12 files changed, 60 insertions(+), 70 deletions(-)

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 0a0ebf3a096d..e55f3932d580 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -732,11 +732,11 @@ static inline unsigned int atmci_convert_chksize(struct atmel_mci *host,
return 0;
}

-static void atmci_timeout_timer(unsigned long data)
+static void atmci_timeout_timer(struct timer_list *t)
{
struct atmel_mci *host;

- host = (struct atmel_mci *)data;
+ host = from_timer(host, t, timer);

dev_dbg(&host->pdev->dev, "software timeout\n");

@@ -1661,9 +1661,9 @@ static void atmci_command_complete(struct atmel_mci *host,
cmd->error = 0;
}

-static void atmci_detect_change(unsigned long data)
+static void atmci_detect_change(struct timer_list *t)
{
- struct atmel_mci_slot *slot = (struct atmel_mci_slot *)data;
+ struct atmel_mci_slot *slot = from_timer(slot, t, detect_timer);
bool present;
bool present_old;

@@ -2349,8 +2349,7 @@ static int atmci_init_slot(struct atmel_mci *host,
if (gpio_is_valid(slot->detect_pin)) {
int ret;

- setup_timer(&slot->detect_timer, atmci_detect_change,
- (unsigned long)slot);
+ timer_setup(&slot->detect_timer, atmci_detect_change, 0);

ret = request_irq(gpio_to_irq(slot->detect_pin),
atmci_detect_interrupt,
@@ -2563,7 +2562,7 @@ static int atmci_probe(struct platform_device *pdev)

platform_set_drvdata(pdev, host);

- setup_timer(&host->timer, atmci_timeout_timer, (unsigned long)host);
+ timer_setup(&host->timer, atmci_timeout_timer, 0);

pm_runtime_get_noresume(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 45289c5e0295..539a33d0e3bd 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2921,9 +2921,9 @@ static void dw_mci_init_dma(struct dw_mci *host)
host->use_dma = TRANS_MODE_PIO;
}

-static void dw_mci_cmd11_timer(unsigned long arg)
+static void dw_mci_cmd11_timer(struct timer_list *t)
{
- struct dw_mci *host = (struct dw_mci *)arg;
+ struct dw_mci *host = from_timer(host, t, cmd11_timer);

if (host->state != STATE_SENDING_CMD11) {
dev_warn(host->dev, "Unexpected CMD11 timeout\n");
@@ -2935,9 +2935,9 @@ static void dw_mci_cmd11_timer(unsigned long arg)
tasklet_schedule(&host->tasklet);
}

-static void dw_mci_cto_timer(unsigned long arg)
+static void dw_mci_cto_timer(struct timer_list *t)
{
- struct dw_mci *host = (struct dw_mci *)arg;
+ struct dw_mci *host = from_timer(host, t, cto_timer);

switch (host->state) {
case STATE_SENDING_CMD11:
@@ -2959,9 +2959,9 @@ static void dw_mci_cto_timer(unsigned long arg)
}
}

-static void dw_mci_dto_timer(unsigned long arg)
+static void dw_mci_dto_timer(struct timer_list *t)
{
- struct dw_mci *host = (struct dw_mci *)arg;
+ struct dw_mci *host = from_timer(host, t, dto_timer);

switch (host->state) {
case STATE_SENDING_DATA:
@@ -3127,14 +3127,11 @@ int dw_mci_probe(struct dw_mci *host)
}
}

- setup_timer(&host->cmd11_timer,
- dw_mci_cmd11_timer, (unsigned long)host);
+ timer_setup(&host->cmd11_timer, dw_mci_cmd11_timer, 0);

- setup_timer(&host->cto_timer,
- dw_mci_cto_timer, (unsigned long)host);
+ timer_setup(&host->cto_timer, dw_mci_cto_timer, 0);

- setup_timer(&host->dto_timer,
- dw_mci_dto_timer, (unsigned long)host);
+ timer_setup(&host->dto_timer, dw_mci_dto_timer, 0);

spin_lock_init(&host->lock);
spin_lock_init(&host->irq_lock);
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 7db8c7a8d38d..712e08d9a45e 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -586,9 +586,9 @@ static bool jz4740_mmc_read_data(struct jz4740_mmc_host *host,
return true;
}

-static void jz4740_mmc_timeout(unsigned long data)
+static void jz4740_mmc_timeout(struct timer_list *t)
{
- struct jz4740_mmc_host *host = (struct jz4740_mmc_host *)data;
+ struct jz4740_mmc_host *host = from_timer(host, t, timeout_timer);

if (!test_and_clear_bit(0, &host->waiting))
return;
@@ -1036,8 +1036,7 @@ static int jz4740_mmc_probe(struct platform_device* pdev)

jz4740_mmc_reset(host);
jz4740_mmc_clock_disable(host);
- setup_timer(&host->timeout_timer, jz4740_mmc_timeout,
- (unsigned long)host);
+ timer_setup(&host->timeout_timer, jz4740_mmc_timeout, 0);

host->use_dma = true;
if (host->use_dma && jz4740_mmc_acquire_dma_channels(host) != 0)
diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c
index 19b499bbe691..f48b266e3ca1 100644
--- a/drivers/mmc/host/meson-mx-sdio.c
+++ b/drivers/mmc/host/meson-mx-sdio.c
@@ -474,9 +474,9 @@ static irqreturn_t meson_mx_mmc_irq_thread(int irq, void *irq_data)
return IRQ_HANDLED;
}

-static void meson_mx_mmc_timeout(unsigned long arg)
+static void meson_mx_mmc_timeout(struct timer_list *t)
{
- struct meson_mx_mmc_host *host = (void *) arg;
+ struct meson_mx_mmc_host *host = from_timer(host, t, cmd_timeout);
unsigned long irqflags;
u32 irqc;

@@ -652,8 +652,7 @@ static int meson_mx_mmc_probe(struct platform_device *pdev)
host->controller_dev = &pdev->dev;

spin_lock_init(&host->irq_lock);
- setup_timer(&host->cmd_timeout, meson_mx_mmc_timeout,
- (unsigned long)host);
+ timer_setup(&host->cmd_timeout, meson_mx_mmc_timeout, 0);

platform_set_drvdata(pdev, host);

diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 58d74b8d6c79..210247b3d11a 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -508,9 +508,9 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
return IRQ_NONE;
}

-static void mvsd_timeout_timer(unsigned long data)
+static void mvsd_timeout_timer(struct timer_list *t)
{
- struct mvsd_host *host = (struct mvsd_host *)data;
+ struct mvsd_host *host = from_timer(host, t, timer);
void __iomem *iobase = host->base;
struct mmc_request *mrq;
unsigned long flags;
@@ -776,7 +776,7 @@ static int mvsd_probe(struct platform_device *pdev)
goto out;
}

- setup_timer(&host->timer, mvsd_timeout_timer, (unsigned long)host);
+ timer_setup(&host->timer, mvsd_timeout_timer, 0);
platform_set_drvdata(pdev, mmc);
ret = mmc_add_host(mmc);
if (ret)
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 328484b96620..1f624a000cad 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -963,10 +963,9 @@ static bool filter(struct dma_chan *chan, void *param)
return true;
}

-static void mxcmci_watchdog(unsigned long data)
+static void mxcmci_watchdog(struct timer_list *t)
{
- struct mmc_host *mmc = (struct mmc_host *)data;
- struct mxcmci_host *host = mmc_priv(mmc);
+ struct mxcmci_host *host = from_timer(host, t, watchdog);
struct mmc_request *req = host->req;
unsigned int stat = mxcmci_readl(host, MMC_REG_STATUS);

@@ -1165,7 +1164,7 @@ static int mxcmci_probe(struct platform_device *pdev)
goto out_free_dma;
}

- setup_timer(&host->watchdog, &mxcmci_watchdog, (unsigned long)mmc);
+ timer_setup(&host->watchdog, mxcmci_watchdog, 0);

mmc_add_host(mmc);

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index bd49f34d7654..adf32682f27a 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -625,9 +625,9 @@ static void mmc_omap_abort_command(struct work_struct *work)
}

static void
-mmc_omap_cmd_timer(unsigned long data)
+mmc_omap_cmd_timer(struct timer_list *t)
{
- struct mmc_omap_host *host = (struct mmc_omap_host *) data;
+ struct mmc_omap_host *host = from_timer(host, t, cmd_abort_timer);
unsigned long flags;

spin_lock_irqsave(&host->slot_lock, flags);
@@ -654,9 +654,9 @@ mmc_omap_sg_to_buf(struct mmc_omap_host *host)
}

static void
-mmc_omap_clk_timer(unsigned long data)
+mmc_omap_clk_timer(struct timer_list *t)
{
- struct mmc_omap_host *host = (struct mmc_omap_host *) data;
+ struct mmc_omap_host *host = from_timer(host, t, clk_timer);

mmc_omap_fclk_enable(host, 0);
}
@@ -874,9 +874,9 @@ void omap_mmc_notify_cover_event(struct device *dev, int num, int is_closed)
tasklet_hi_schedule(&slot->cover_tasklet);
}

-static void mmc_omap_cover_timer(unsigned long arg)
+static void mmc_omap_cover_timer(struct timer_list *t)
{
- struct mmc_omap_slot *slot = (struct mmc_omap_slot *) arg;
+ struct mmc_omap_slot *slot = from_timer(slot, t, cover_timer);
tasklet_schedule(&slot->cover_tasklet);
}

@@ -1264,8 +1264,7 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
mmc->max_seg_size = mmc->max_req_size;

if (slot->pdata->get_cover_state != NULL) {
- setup_timer(&slot->cover_timer, mmc_omap_cover_timer,
- (unsigned long)slot);
+ timer_setup(&slot->cover_timer, mmc_omap_cover_timer, 0);
tasklet_init(&slot->cover_tasklet, mmc_omap_cover_handler,
(unsigned long)slot);
}
@@ -1352,11 +1351,10 @@ static int mmc_omap_probe(struct platform_device *pdev)
INIT_WORK(&host->send_stop_work, mmc_omap_send_stop_work);

INIT_WORK(&host->cmd_abort_work, mmc_omap_abort_command);
- setup_timer(&host->cmd_abort_timer, mmc_omap_cmd_timer,
- (unsigned long) host);
+ timer_setup(&host->cmd_abort_timer, mmc_omap_cmd_timer, 0);

spin_lock_init(&host->clk_lock);
- setup_timer(&host->clk_timer, mmc_omap_clk_timer, (unsigned long) host);
+ timer_setup(&host->clk_timer, mmc_omap_clk_timer, 0);

spin_lock_init(&host->dma_lock);
spin_lock_init(&host->slot_lock);
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 0d5fcca18c9e..536f2d529a3e 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2407,12 +2407,12 @@ static void sdhci_tasklet_finish(unsigned long param)
;
}

-static void sdhci_timeout_timer(unsigned long data)
+static void sdhci_timeout_timer(struct timer_list *t)
{
struct sdhci_host *host;
unsigned long flags;

- host = (struct sdhci_host*)data;
+ host = from_timer(host, t, timer);

spin_lock_irqsave(&host->lock, flags);

@@ -2429,12 +2429,12 @@ static void sdhci_timeout_timer(unsigned long data)
spin_unlock_irqrestore(&host->lock, flags);
}

-static void sdhci_timeout_data_timer(unsigned long data)
+static void sdhci_timeout_data_timer(struct timer_list *t)
{
struct sdhci_host *host;
unsigned long flags;

- host = (struct sdhci_host *)data;
+ host = from_timer(host, t, data_timer);

spin_lock_irqsave(&host->lock, flags);

@@ -3749,9 +3749,8 @@ int __sdhci_add_host(struct sdhci_host *host)
tasklet_init(&host->finish_tasklet,
sdhci_tasklet_finish, (unsigned long)host);

- setup_timer(&host->timer, sdhci_timeout_timer, (unsigned long)host);
- setup_timer(&host->data_timer, sdhci_timeout_data_timer,
- (unsigned long)host);
+ timer_setup(&host->timer, sdhci_timeout_timer, 0);
+ timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0);

init_waitqueue_head(&host->buf_ready_int);

diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index 93c4b40df90a..a3d8380ab480 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -783,9 +783,9 @@ static void tifm_sd_end_cmd(unsigned long data)
mmc_request_done(mmc, mrq);
}

-static void tifm_sd_abort(unsigned long data)
+static void tifm_sd_abort(struct timer_list *t)
{
- struct tifm_sd *host = (struct tifm_sd*)data;
+ struct tifm_sd *host = from_timer(host, t, timer);

pr_err("%s : card failed to respond for a long period of time "
"(%x, %x)\n",
@@ -968,7 +968,7 @@ static int tifm_sd_probe(struct tifm_dev *sock)

tasklet_init(&host->finish_tasklet, tifm_sd_end_cmd,
(unsigned long)host);
- setup_timer(&host->timer, tifm_sd_abort, (unsigned long)host);
+ timer_setup(&host->timer, tifm_sd_abort, 0);

mmc->ops = &tifm_sd_ops;
mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index a8c97b6e59dc..32c4211506fc 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -932,12 +932,12 @@ static irqreturn_t via_sdc_isr(int irq, void *dev_id)
return result;
}

-static void via_sdc_timeout(unsigned long ulongdata)
+static void via_sdc_timeout(struct timer_list *t)
{
struct via_crdr_mmc_host *sdhost;
unsigned long flags;

- sdhost = (struct via_crdr_mmc_host *)ulongdata;
+ sdhost = from_timer(sdhost, t, timer);

spin_lock_irqsave(&sdhost->lock, flags);

@@ -1036,7 +1036,7 @@ static void via_init_mmc_host(struct via_crdr_mmc_host *host)
u32 lenreg;
u32 status;

- setup_timer(&host->timer, via_sdc_timeout, (unsigned long)host);
+ timer_setup(&host->timer, via_sdc_timeout, 0);

spin_lock_init(&host->lock);

diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index c1a169843f99..e6091528aca3 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -741,9 +741,10 @@ static void vub300_deadwork_thread(struct work_struct *work)
kref_put(&vub300->kref, vub300_delete);
}

-static void vub300_inactivity_timer_expired(unsigned long data)
+static void vub300_inactivity_timer_expired(struct timer_list *t)
{ /* softirq */
- struct vub300_mmc_host *vub300 = (struct vub300_mmc_host *)data;
+ struct vub300_mmc_host *vub300 = from_timer(vub300, t,
+ inactivity_timer);
if (!vub300->interface) {
kref_put(&vub300->kref, vub300_delete);
} else if (vub300->cmd) {
@@ -1180,9 +1181,10 @@ static void send_command(struct vub300_mmc_host *vub300)
* timer callback runs in atomic mode
* so it cannot call usb_kill_urb()
*/
-static void vub300_sg_timed_out(unsigned long data)
+static void vub300_sg_timed_out(struct timer_list *t)
{
- struct vub300_mmc_host *vub300 = (struct vub300_mmc_host *)data;
+ struct vub300_mmc_host *vub300 = from_timer(vub300, t,
+ sg_transfer_timer);
vub300->usb_timed_out = 1;
usb_sg_cancel(&vub300->sg_request);
usb_unlink_urb(vub300->command_out_urb);
@@ -2323,11 +2325,10 @@ static int vub300_probe(struct usb_interface *interface,
INIT_WORK(&vub300->cmndwork, vub300_cmndwork_thread);
INIT_WORK(&vub300->deadwork, vub300_deadwork_thread);
kref_init(&vub300->kref);
- setup_timer(&vub300->sg_transfer_timer, vub300_sg_timed_out,
- (unsigned long)vub300);
+ timer_setup(&vub300->sg_transfer_timer, vub300_sg_timed_out, 0);
kref_get(&vub300->kref);
- setup_timer(&vub300->inactivity_timer,
- vub300_inactivity_timer_expired, (unsigned long)vub300);
+ timer_setup(&vub300->inactivity_timer,
+ vub300_inactivity_timer_expired, 0);
vub300->inactivity_timer.expires = jiffies + HZ;
add_timer(&vub300->inactivity_timer);
if (vub300->card_present)
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 499852d8f706..f4233576153b 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -956,9 +956,9 @@ static const struct mmc_host_ops wbsd_ops = {
* Helper function to reset detection ignore
*/

-static void wbsd_reset_ignore(unsigned long data)
+static void wbsd_reset_ignore(struct timer_list *t)
{
- struct wbsd_host *host = (struct wbsd_host *)data;
+ struct wbsd_host *host = from_timer(host, t, ignore_timer);

BUG_ON(host == NULL);

@@ -1224,8 +1224,7 @@ static int wbsd_alloc_mmc(struct device *dev)
/*
* Set up timers
*/
- setup_timer(&host->ignore_timer, wbsd_reset_ignore,
- (unsigned long)host);
+ timer_setup(&host->ignore_timer, wbsd_reset_ignore, 0);

/*
* Maximum number of segments. Worst case is one sector per segment
--
2.7.4

--
Kees Cook
Pixel Security

Next message: John Garry: "[PATCH 04/19] scsi: hisi_sas: grab hisi_hba.lock when processing slots"
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