mmc: 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.

Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Carlo Caione <carlo@caione.org>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: Bruce Chang <brucechang@via.com.tw>
Cc: Harald Welte <HaraldWelte@viatech.com>
Cc: Tony Olech <tony.olech@elandigitalsystems.com>
Cc: Pierre Ossman <pierre@ossman.eu>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Paul Cercueil <paul@crapouillou.net>
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Cc: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: Allen <allen.lkml@gmail.com>
Cc: linux-mmc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

11 files changed, 51 insertions, 58 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/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 @@ poll_timeout:
 	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 ce1d9216b5a7..09cb89645d06 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 8bd9f060be2a..5ff8ef7223cc 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 1052b52045b1..2f14334e42df 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 @@ out:
 	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