On 24 October 2017 at 17:03, Kees Cook <keescook@xxxxxxxxxxxx> wrote: > 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> Thanks, applied for next, however by dropping the changes for dw_mmc.c because of a conflict. Can you please post a new patch, but then only for dw_mmc? Kind regards Uffe > --- > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html