diff options
32 files changed, 499 insertions, 52 deletions
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index 9f3a8ef1fb3..b3d03d33594 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -390,8 +390,8 @@ static int exynos_adc_remove(struct platform_device *pdev) #ifdef CONFIG_PM_SLEEP static int exynos_adc_suspend(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct exynos_adc *info = platform_get_drvdata(pdev); + struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct exynos_adc *info = iio_priv(indio_dev); u32 con; if (info->version == ADC_V2) { @@ -413,8 +413,8 @@ static int exynos_adc_suspend(struct device *dev) static int exynos_adc_resume(struct device *dev) { - struct platform_device *pdev = to_platform_device(dev); - struct exynos_adc *info = platform_get_drvdata(pdev); + struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct exynos_adc *info = iio_priv(indio_dev); int ret; ret = regulator_enable(info->vdd); diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index bd33473f8e3..ed9bc8ae933 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -312,6 +312,8 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev, goto read_error; *val = *val >> ch->scan_type.shift; + + err = st_sensors_set_enable(indio_dev, false); } mutex_unlock(&indio_dev->mlock); diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index f4a6f083832..b61160bd935 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -5,7 +5,7 @@ menu "Digital to analog converters" config AD5064 tristate "Analog Devices AD5064 and similar multi-channel DAC driver" - depends on (SPI_MASTER || I2C) + depends on (SPI_MASTER && I2C!=m) || I2C help Say yes here to build support for Analog Devices AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5629R, AD5648, AD5666, AD5668, @@ -27,7 +27,7 @@ config AD5360 config AD5380 tristate "Analog Devices AD5380/81/82/83/84/90/91/92 DAC driver" - depends on (SPI_MASTER || I2C) + depends on (SPI_MASTER && I2C!=m) || I2C select REGMAP_I2C if I2C select REGMAP_SPI if SPI_MASTER help @@ -57,7 +57,7 @@ config AD5624R_SPI config AD5446 tristate "Analog Devices AD5446 and similar single channel DACs driver" - depends on (SPI_MASTER || I2C) + depends on (SPI_MASTER && I2C!=m) || I2C help Say yes here to build support for Analog Devices AD5300, AD5301, AD5310, AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453, diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index 4e8a1794f50..aefe820a800 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -72,10 +72,10 @@ source "drivers/staging/sep/Kconfig" source "drivers/staging/iio/Kconfig" -source "drivers/staging/zram/Kconfig" - source "drivers/staging/zsmalloc/Kconfig" +source "drivers/staging/zram/Kconfig" + source "drivers/staging/wlags49_h2/Kconfig" source "drivers/staging/wlags49_h25/Kconfig" diff --git a/drivers/staging/android/logger.c b/drivers/staging/android/logger.c index b040200a5a5..9bd874789ce 100644 --- a/drivers/staging/android/logger.c +++ b/drivers/staging/android/logger.c @@ -242,7 +242,7 @@ static ssize_t do_read_log_to_user(struct logger_log *log, * 'log->buffer' which contains the first entry readable by 'euid' */ static size_t get_next_entry_by_uid(struct logger_log *log, - size_t off, uid_t euid) + size_t off, kuid_t euid) { while (off != log->w_off) { struct logger_entry *entry; @@ -251,7 +251,7 @@ static size_t get_next_entry_by_uid(struct logger_log *log, entry = get_entry_header(log, off, &scratch); - if (entry->euid == euid) + if (uid_eq(entry->euid, euid)) return off; next_len = sizeof(struct logger_entry) + entry->len; diff --git a/drivers/staging/android/logger.h b/drivers/staging/android/logger.h index cc6bbd99c8e..70af7d805df 100644 --- a/drivers/staging/android/logger.h +++ b/drivers/staging/android/logger.h @@ -66,7 +66,7 @@ struct logger_entry { __s32 tid; __s32 sec; __s32 nsec; - uid_t euid; + kuid_t euid; char msg[0]; }; diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig index 7871579bb83..87e852a0ef4 100644 --- a/drivers/staging/comedi/Kconfig +++ b/drivers/staging/comedi/Kconfig @@ -981,6 +981,7 @@ config COMEDI_ME_DAQ config COMEDI_NI_6527 tristate "NI 6527 support" + depends on HAS_DMA select COMEDI_MITE ---help--- Enable support for the National Instruments 6527 PCI card @@ -990,6 +991,7 @@ config COMEDI_NI_6527 config COMEDI_NI_65XX tristate "NI 65xx static dio PCI card support" + depends on HAS_DMA select COMEDI_MITE ---help--- Enable support for National Instruments 65xx static dio boards. @@ -1003,6 +1005,7 @@ config COMEDI_NI_65XX config COMEDI_NI_660X tristate "NI 660x counter/timer PCI card support" + depends on HAS_DMA select COMEDI_NI_TIOCMD ---help--- Enable support for National Instruments PCI-6601 (ni_660x), PCI-6602, @@ -1013,6 +1016,7 @@ config COMEDI_NI_660X config COMEDI_NI_670X tristate "NI 670x PCI card support" + depends on HAS_DMA select COMEDI_MITE ---help--- Enable support for National Instruments PCI-6703 and PCI-6704 @@ -1022,6 +1026,7 @@ config COMEDI_NI_670X config COMEDI_NI_LABPC_PCI tristate "NI Lab-PC PCI-1200 support" + depends on HAS_DMA select COMEDI_NI_LABPC select COMEDI_MITE ---help--- @@ -1032,6 +1037,7 @@ config COMEDI_NI_LABPC_PCI config COMEDI_NI_PCIDIO tristate "NI PCI-DIO32HS, PCI-6533, PCI-6534 support" + depends on HAS_DMA select COMEDI_MITE select COMEDI_8255 ---help--- @@ -1043,6 +1049,7 @@ config COMEDI_NI_PCIDIO config COMEDI_NI_PCIMIO tristate "NI PCI-MIO-E series and M series support" + depends on HAS_DMA select COMEDI_NI_TIOCMD select COMEDI_8255 select COMEDI_FC @@ -1095,10 +1102,12 @@ config COMEDI_SSV_DNP called ssv_dnp. config COMEDI_MITE + depends on HAS_DMA tristate config COMEDI_NI_TIOCMD tristate + depends on HAS_DMA select COMEDI_NI_TIO select COMEDI_MITE diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index ca709901fb3..d4be0e68509 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -51,10 +51,12 @@ static void __comedi_buf_free(struct comedi_device *dev, clear_bit(PG_reserved, &(virt_to_page(buf->virt_addr)->flags)); if (s->async_dma_dir != DMA_NONE) { +#ifdef CONFIG_HAS_DMA dma_free_coherent(dev->hw_dev, PAGE_SIZE, buf->virt_addr, buf->dma_addr); +#endif } else { free_page((unsigned long)buf->virt_addr); } @@ -74,6 +76,12 @@ static void __comedi_buf_alloc(struct comedi_device *dev, struct comedi_buf_page *buf; unsigned i; + if (!IS_ENABLED(CONFIG_HAS_DMA) && s->async_dma_dir != DMA_NONE) { + dev_err(dev->class_dev, + "dma buffer allocation not supported\n"); + return; + } + async->buf_page_list = vzalloc(sizeof(*buf) * n_pages); if (async->buf_page_list) pages = vmalloc(sizeof(struct page *) * n_pages); @@ -84,11 +92,15 @@ static void __comedi_buf_alloc(struct comedi_device *dev, for (i = 0; i < n_pages; i++) { buf = &async->buf_page_list[i]; if (s->async_dma_dir != DMA_NONE) +#ifdef CONFIG_HAS_DMA buf->virt_addr = dma_alloc_coherent(dev->hw_dev, PAGE_SIZE, &buf->dma_addr, GFP_KERNEL | __GFP_COMP); +#else + break; +#endif else buf->virt_addr = (void *)get_zeroed_page(GFP_KERNEL); if (!buf->virt_addr) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 00f2547024e..924c54c9c31 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -246,9 +246,6 @@ static int resize_async_buffer(struct comedi_device *dev, return -EBUSY; } - if (!async->prealloc_buf) - return -EINVAL; - /* make sure buffer is an integral number of pages * (we round up) */ new_size = (new_size + PAGE_SIZE - 1) & PAGE_MASK; diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 3d978f34d21..77a7bb63258 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -976,8 +976,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) /* clear flip-flop to make sure 2-byte registers for * count and address get set correctly */ clear_dma_ff(devpriv->dma_chan); - set_dma_addr(devpriv->dma_chan, - virt_to_bus(devpriv->dma_buffer)); + set_dma_addr(devpriv->dma_chan, devpriv->dma_addr); /* set appropriate size of transfer */ devpriv->dma_transfer_size = labpc_suggest_transfer_size(cmd); if (cmd->stop_src == TRIG_COUNT && @@ -1089,7 +1088,7 @@ static void labpc_drain_dma(struct comedi_device *dev) devpriv->count -= num_points; /* set address and count for next transfer */ - set_dma_addr(devpriv->dma_chan, virt_to_bus(devpriv->dma_buffer)); + set_dma_addr(devpriv->dma_chan, devpriv->dma_addr); set_dma_count(devpriv->dma_chan, leftover * sample_size); release_dma_lock(flags); @@ -1741,6 +1740,9 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) unsigned long dma_flags; devpriv->dma_chan = dma_chan; + devpriv->dma_addr = + virt_to_bus(devpriv->dma_buffer); + dma_flags = claim_dma_lock(); disable_dma(devpriv->dma_chan); set_dma_mode(devpriv->dma_chan, DMA_MODE_READ); diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h index 615f16f271c..4b691f5a996 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.h +++ b/drivers/staging/comedi/drivers/ni_labpc.h @@ -82,6 +82,7 @@ struct labpc_private { unsigned int divisor_b1; unsigned int dma_chan; /* dma channel to use */ u16 *dma_buffer; /* buffer ai will dma into */ + phys_addr_t dma_addr; /* transfer size in bytes for current transfer */ unsigned int dma_transfer_size; /* we are using dma/fifo-half-full/etc. */ diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index a46d579016d..8c5dee9b3b0 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -310,9 +310,11 @@ static int ni_gpct_insn_read(struct comedi_device *dev, static int ni_gpct_insn_config(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_insn *insn, unsigned int *data); +#ifdef PCIDMA static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s); static int ni_gpct_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd); +#endif static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s); static void handle_gpct_interrupt(struct comedi_device *dev, @@ -4617,9 +4619,7 @@ static int ni_E_init(struct comedi_device *dev) for (j = 0; j < NUM_GPCT; ++j) { s = &dev->subdevices[NI_GPCT_SUBDEV(j)]; s->type = COMEDI_SUBD_COUNTER; - s->subdev_flags = - SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL | SDF_CMD_READ - /* | SDF_CMD_WRITE */ ; + s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL; s->n_chan = 3; if (board->reg_type & ni_reg_m_series_mask) s->maxdata = 0xffffffff; @@ -4628,11 +4628,14 @@ static int ni_E_init(struct comedi_device *dev) s->insn_read = &ni_gpct_insn_read; s->insn_write = &ni_gpct_insn_write; s->insn_config = &ni_gpct_insn_config; +#ifdef PCIDMA + s->subdev_flags |= SDF_CMD_READ /* | SDF_CMD_WRITE */; s->do_cmd = &ni_gpct_cmd; s->len_chanlist = 1; s->do_cmdtest = &ni_gpct_cmdtest; s->cancel = &ni_gpct_cancel; s->async_dma_dir = DMA_BIDIRECTIONAL; +#endif s->private = &devpriv->counter_dev->counters[j]; devpriv->counter_dev->counters[j].chip_index = 0; @@ -5216,10 +5219,10 @@ static int ni_gpct_insn_write(struct comedi_device *dev, return ni_tio_winsn(counter, insn, data); } +#ifdef PCIDMA static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s) { int retval; -#ifdef PCIDMA struct ni_gpct *counter = s->private; /* const struct comedi_cmd *cmd = &s->async->cmd; */ @@ -5233,23 +5236,20 @@ static int ni_gpct_cmd(struct comedi_device *dev, struct comedi_subdevice *s) ni_tio_acknowledge_and_confirm(counter, NULL, NULL, NULL, NULL); ni_e_series_enable_second_irq(dev, counter->counter_index, 1); retval = ni_tio_cmd(counter, s->async); -#else - retval = -ENOTSUPP; -#endif return retval; } +#endif +#ifdef PCIDMA static int ni_gpct_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, struct comedi_cmd *cmd) { -#ifdef PCIDMA struct ni_gpct *counter = s->private; return ni_tio_cmdtest(counter, cmd); -#else return -ENOTSUPP; -#endif } +#endif static int ni_gpct_cancel(struct comedi_device *dev, struct comedi_subdevice *s) { diff --git a/drivers/staging/dwc2/Kconfig b/drivers/staging/dwc2/Kconfig index bbee1775d49..d15d9d58e5a 100644 --- a/drivers/staging/dwc2/Kconfig +++ b/drivers/staging/dwc2/Kconfig @@ -38,6 +38,7 @@ config USB_DWC2_TRACK_MISSED_SOFS bool "Enable Missed SOF Tracking" help Say Y here to enable logging of missed SOF events to the dmesg log. + WARNING: This feature is still experimental. If in doubt, say N. config USB_DWC2_DEBUG_PERIODIC diff --git a/drivers/staging/dwc2/hcd_intr.c b/drivers/staging/dwc2/hcd_intr.c index 6e5dbed6cce..e24062f0a49 100644 --- a/drivers/staging/dwc2/hcd_intr.c +++ b/drivers/staging/dwc2/hcd_intr.c @@ -56,8 +56,6 @@ static void dwc2_track_missed_sofs(struct dwc2_hsotg *hsotg) { #ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS -#warning Compiling code to track missed SOFs - u16 curr_frame_number = hsotg->frame_number; if (hsotg->frame_num_idx < FRAME_NUM_ARRAY_SIZE) { diff --git a/drivers/staging/dwc2/platform.c b/drivers/staging/dwc2/platform.c index b610960e93d..44cce2fa636 100644 --- a/drivers/staging/dwc2/platform.c +++ b/drivers/staging/dwc2/platform.c @@ -95,6 +95,14 @@ static int dwc2_driver_probe(struct platform_device *dev) hsotg->dev = &dev->dev; + /* + * Use reasonable defaults so platforms don't have to provide these. + */ + if (!dev->dev.dma_mask) + dev->dev.dma_mask = &dev->dev.coherent_dma_mask; + if (!dev->dev.coherent_dma_mask) + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + irq = platform_get_irq(dev, 0); if (irq < 0) { dev_err(&dev->dev, "missing IRQ resource\n"); diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c index 2856b8fd44a..163c638e409 100644 --- a/drivers/staging/iio/adc/mxs-lradc.c +++ b/drivers/staging/iio/adc/mxs-lradc.c @@ -690,7 +690,6 @@ static void mxs_lradc_trigger_remove(struct iio_dev *iio) static int mxs_lradc_buffer_preenable(struct iio_dev *iio) { struct mxs_lradc *lradc = iio_priv(iio); - struct iio_buffer *buffer = iio->buffer; int ret = 0, chan, ofs = 0; unsigned long enable = 0; uint32_t ctrl4_set = 0; @@ -698,7 +697,7 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio) uint32_t ctrl1_irq = 0; const uint32_t chan_value = LRADC_CH_ACCUMULATE | ((LRADC_DELAY_TIMER_LOOP - 1) << LRADC_CH_NUM_SAMPLES_OFFSET); - const int len = bitmap_weight(buffer->scan_mask, LRADC_MAX_TOTAL_CHANS); + const int len = bitmap_weight(iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS); if (!len) return -EINVAL; @@ -725,7 +724,7 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio) lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR); writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR); - for_each_set_bit(chan, buffer->scan_mask, LRADC_MAX_TOTAL_CHANS) { + for_each_set_bit(chan, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) { ctrl4_set |= chan << LRADC_CTRL4_LRADCSELECT_OFFSET(ofs); ctrl4_clr |= LRADC_CTRL4_LRADCSELECT_MASK(ofs); ctrl1_irq |= LRADC_CTRL1_LRADC_IRQ_EN(ofs); diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c index d060f257251..c99f890cc6c 100644 --- a/drivers/staging/iio/light/tsl2x7x_core.c +++ b/drivers/staging/iio/light/tsl2x7x_core.c @@ -1869,6 +1869,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp, dev_info(&chip->client->dev, "%s: i2c device found does not match expected id\n", __func__); + ret = -EINVAL; goto fail1; } @@ -1907,7 +1908,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp, if (ret) { dev_err(&clientp->dev, "%s: irq request failed", __func__); - goto fail2; + goto fail1; } } @@ -1920,17 +1921,17 @@ static int tsl2x7x_probe(struct i2c_client *clientp, if (ret) { dev_err(&clientp->dev, "%s: iio registration failed\n", __func__); - goto fail1; + goto fail2; } dev_info(&clientp->dev, "%s Light sensor found.\n", id->name); return 0; -fail1: +fail2: if (clientp->irq) free_irq(clientp->irq, indio_dev); -fail2: +fail1: iio_device_free(indio_dev); return ret; diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig index 8c9e40390f4..ef699f75318 100644 --- a/drivers/staging/imx-drm/Kconfig +++ b/drivers/staging/imx-drm/Kconfig @@ -1,6 +1,7 @@ config DRM_IMX tristate "DRM Support for Freescale i.MX" select DRM_KMS_HELPER + select VIDEOMODE_HELPERS select DRM_GEM_CMA_HELPER select DRM_KMS_CMA_HELPER depends on DRM && (ARCH_MXC || ARCH_MULTIPLATFORM) @@ -19,10 +20,12 @@ config DRM_IMX_FB_HELPER config DRM_IMX_PARALLEL_DISPLAY tristate "Support for parallel displays" depends on DRM_IMX + select VIDEOMODE_HELPERS config DRM_IMX_TVE tristate "Support for TV and VGA displays" depends on DRM_IMX + select REGMAP_MMIO help Choose this to enable the internal Television Encoder (TVe) found on i.MX53 processors. @@ -30,6 +33,7 @@ config DRM_IMX_TVE config DRM_IMX_IPUV3_CORE tristate "IPUv3 core support" depends on DRM_IMX + depends on RESET_CONTROLLER help Choose this if you have a i.MX5/6 system and want to use the IPU. This option only enables IPU base @@ -38,5 +42,6 @@ config DRM_IMX_IPUV3_CORE config DRM_IMX_IPUV3 tristate "DRM Support for i.MX IPUv3" depends on DRM_IMX + depends on DRM_IMX_IPUV3_CORE help Choose this if you have a i.MX5 or i.MX6 processor. diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c index ac163446440..03892de9bd7 100644 --- a/drivers/staging/imx-drm/imx-tve.c +++ b/drivers/staging/imx-drm/imx-tve.c @@ -670,7 +670,9 @@ static int imx_tve_probe(struct platform_device *pdev) tve->dac_reg = devm_regulator_get(&pdev->dev, "dac"); if (!IS_ERR(tve->dac_reg)) { regulator_set_voltage(tve->dac_reg, 2750000, 2750000); - regulator_enable(tve->dac_reg); + ret = regulator_enable(tve->dac_reg); + if (ret) + return ret; } tve->clk = devm_clk_get(&pdev->dev, "tve"); diff --git a/drivers/staging/media/solo6x10/Kconfig b/drivers/staging/media/solo6x10/Kconfig index ec32776ff54..df6569b997b 100644 --- a/drivers/staging/media/solo6x10/Kconfig +++ b/drivers/staging/media/solo6x10/Kconfig @@ -1,6 +1,7 @@ config SOLO6X10 tristate "Softlogic 6x10 MPEG codec cards" depends on PCI && VIDEO_DEV && SND && I2C + depends on FONTS select VIDEOBUF2_DMA_SG select VIDEOBUF2_DMA_CONTIG select SND_PCM diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 863b22e51b4..197c393c4ca 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -124,6 +124,20 @@ int nvec_register_notifier(struct nvec_chip *nvec, struct notifier_block *nb, EXPORT_SYMBOL_GPL(nvec_register_notifier); /** + * nvec_unregister_notifier - Unregister a notifier with nvec + * @nvec: A &struct nvec_chip + * @nb: The notifier block to unregister + * + * Unregisters a notifier with @nvec. The notifier will be removed from the + * atomic notifier chain. + */ +int nvec_unregister_notifier(struct nvec_chip *nvec, struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(&nvec->notifier_list, nb); +} +EXPORT_SYMBOL_GPL(nvec_unregister_notifier); + +/** * nvec_status_notifier - The final notifier * * Prints a message about control events not handled in the notifier @@ -185,7 +199,7 @@ static struct nvec_msg *nvec_msg_alloc(struct nvec_chip *nvec, * * Free the given message */ -inline void nvec_msg_free(struct nvec_chip *nvec, struct nvec_msg *msg) +void nvec_msg_free(struct nvec_chip *nvec, struct nvec_msg *msg) { if (msg != &nvec->tx_scratch) dev_vdbg(nvec->dev, "INFO: Free %ti\n", msg - nvec->msg_pool); @@ -810,7 +824,7 @@ static int tegra_nvec_probe(struct platform_device *pdev) return -ENODEV; } - i2c_clk = clk_get(&pdev->dev, "div-clk"); + i2c_clk = devm_clk_get(&pdev->dev, "div-clk"); if (IS_ERR(i2c_clk)) { dev_err(nvec->dev, "failed to get controller clock\n"); return -ENODEV; @@ -897,8 +911,11 @@ static int tegra_nvec_remove(struct platform_device *pdev) nvec_toggle_global_events(nvec, false); mfd_remove_devices(nvec->dev); + nvec_unregister_notifier(nvec, &nvec->nvec_status_notifier); cancel_work_sync(&nvec->rx_work); cancel_work_sync(&nvec->tx_work); + /* FIXME: needs check wether nvec is responsible for power off */ + pm_power_off = NULL; return 0; } diff --git a/drivers/staging/nvec/nvec.h b/drivers/staging/nvec/nvec.h index b7a14bc0ab9..2b1316d8747 100644 --- a/drivers/staging/nvec/nvec.h +++ b/drivers/staging/nvec/nvec.h @@ -197,9 +197,8 @@ extern int nvec_register_notifier(struct nvec_chip *nvec, struct notifier_block *nb, unsigned int events); -extern int nvec_unregister_notifier(struct device *dev, - struct notifier_block *nb, - unsigned int events); +extern int nvec_unregister_notifier(struct nvec_chip *dev, + struct notifier_block *nb); extern void nvec_msg_free(struct nvec_chip *nvec, struct nvec_msg *msg); diff --git a/drivers/staging/nvec/nvec_kbd.c b/drivers/staging/nvec/nvec_kbd.c index 7445ce6422b..a0ec52a4114 100644 --- a/drivers/staging/nvec/nvec_kbd.c +++ b/drivers/staging/nvec/nvec_kbd.c @@ -169,8 +169,15 @@ fail: static int nvec_kbd_remove(struct platform_device *pdev) { + struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent); + char disable_kbd[] = { NVEC_KBD, DISABLE_KBD }, + uncnfg_wake_key_reporting[] = { NVEC_KBD, CNFG_WAKE_KEY_REPORTING, + false }; + nvec_write_async(nvec, uncnfg_wake_key_reporting, 3); + nvec_write_async(nvec, disable_kbd, 2); + nvec_unregister_notifier(nvec, &keys_dev.notifier); + input_unregister_device(keys_dev.input); - input_free_device(keys_dev.input); return 0; } @@ -188,4 +195,5 @@ module_platform_driver(nvec_kbd_driver); MODULE_AUTHOR("Marc Dietrich <marvin24@gmx.de>"); MODULE_DESCRIPTION("NVEC keyboard driver"); +MODULE_ALIAS("platform:nvec-kbd"); MODULE_LICENSE("GPL"); diff --git a/drivers/staging/nvec/nvec_power.c b/drivers/staging/nvec/nvec_power.c index 296f7b9a8c8..aacfcd6954a 100644 --- a/drivers/staging/nvec/nvec_power.c +++ b/drivers/staging/nvec/nvec_power.c @@ -414,6 +414,7 @@ static int nvec_power_remove(struct platform_device *pdev) struct nvec_power *power = platform_get_drvdata(pdev); cancel_delayed_work_sync(&power->poller); + nvec_unregister_notifier(power->nvec, &power->notifier); switch (pdev->id) { case AC: power_supply_unregister(&nvec_psy); diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c index aff6b9b9f9a..06dbb02085a 100644 --- a/drivers/staging/nvec/nvec_ps2.c +++ b/drivers/staging/nvec/nvec_ps2.c @@ -106,7 +106,7 @@ static int nvec_mouse_probe(struct platform_device *pdev) struct serio *ser_dev; char mouse_reset[] = { NVEC_PS2, SEND_COMMAND, PSMOUSE_RST, 3 }; - ser_dev = devm_kzalloc(&pdev->dev, sizeof(struct serio), GFP_KERNEL); + ser_dev = kzalloc(sizeof(struct serio), GFP_KERNEL); if (ser_dev == NULL) return -ENOMEM; @@ -133,6 +133,11 @@ static int nvec_mouse_probe(struct platform_device *pdev) static int nvec_mouse_remove(struct platform_device *pdev) { + struct nvec_chip *nvec = dev_get_drvdata(pdev->dev.parent); + + ps2_sendcommand(ps2_dev.ser_dev, DISABLE_MOUSE); + ps2_stopstreaming(ps2_dev.ser_dev); + nvec_unregister_notifier(nvec, &ps2_dev.notifier); serio_unregister_port(ps2_dev.ser_dev); return 0; @@ -179,4 +184,5 @@ module_platform_driver(nvec_mouse_driver); MODULE_DESCRIPTION("NVEC mouse driver"); MODULE_AUTHOR("Marc Dietrich <marvin24@gmx.de>"); +MODULE_ALIAS("platform:nvec-mouse"); MODULE_LICENSE("GPL"); diff --git a/drivers/staging/sep/Kconfig b/drivers/staging/sep/Kconfig index 185b676d858..aab945a316e 100644 --- a/drivers/staging/sep/Kconfig +++ b/drivers/staging/sep/Kconfig @@ -1,6 +1,6 @@ config DX_SEP tristate "Discretix SEP driver" - depends on PCI + depends on PCI && CRYPTO help Discretix SEP driver; used for the security processor subsystem on board the Intel Mobile Internet Device and adds SEP availability diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c index fe667dde43c..386362c9964 100644 --- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c +++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c @@ -1087,7 +1087,11 @@ static int synaptics_rmi4_resume(struct device *dev) unsigned char intr_status; struct synaptics_rmi4_data *rmi4_data = dev_get_drvdata(dev); - regulator_enable(rmi4_data->regulator); + retval = regulator_enable(rmi4_data->regulator); + if (retval) { + dev_err(dev, "Regulator enable failed (%d)\n", retval); + return retval; + } enable_irq(rmi4_data->i2c_client->irq); rmi4_data->touch_stopped = false; diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c index f4f1bf7a30f..c699a3058b3 100644 --- a/drivers/staging/vt6656/hostap.c +++ b/drivers/staging/vt6656/hostap.c @@ -133,7 +133,7 @@ static int hostap_disable_hostapd(struct vnt_private *pDevice, int rtnl_locked) DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Netdevice %s unregistered\n", pDevice->dev->name, pDevice->apdev->name); } - kfree(pDevice->apdev); + free_netdev(pDevice->apdev); pDevice->apdev = NULL; pDevice->bEnable8021x = false; pDevice->bEnableHostWEP = false; diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c index c335808211e..d0cf7d8a20e 100644 --- a/drivers/staging/vt6656/iwctl.c +++ b/drivers/staging/vt6656/iwctl.c @@ -1345,9 +1345,12 @@ int iwctl_siwpower(struct net_device *dev, struct iw_request_info *info, return rc; } + spin_lock_irq(&pDevice->lock); + if (wrq->disabled) { pDevice->ePSMode = WMAC_POWER_CAM; PSvDisablePowerSaving(pDevice); + spin_unlock_irq(&pDevice->lock); return rc; } if ((wrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { @@ -1358,6 +1361,9 @@ int iwctl_siwpower(struct net_device *dev, struct iw_request_info *info, pDevice->ePSMode = WMAC_POWER_FAST; PSvEnablePowerSaving((void *)pDevice, pMgmt->wListenInterval); } + + spin_unlock_irq(&pDevice->lock); + switch (wrq->flags & IW_POWER_MODE) { case IW_POWER_UNICAST_R: DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_UNICAST_R \n"); diff --git a/drivers/staging/zcache/ramster/ramster-howto.txt b/drivers/staging/zcache/ramster/ramster-howto.txt new file mode 100644 index 00000000000..7b1ee3bbfdd --- /dev/null +++ b/drivers/staging/zcache/ramster/ramster-howto.txt @@ -0,0 +1,366 @@ + RAMSTER HOW-TO + +Author: Dan Magenheimer +Ramster maintainer: Konrad Wilk <konrad.wilk@oracle.com> + +This is a HOWTO document for ramster which, as of this writing, is in +the kernel as a subdirectory of zcache in drivers/staging, called ramster. +(Zcache can be built with or without ramster functionality.) If enabled +and properly configured, ramster allows memory capacity load balancing +across multiple machines in a cluster. Further, the ramster code serves +as an example of asynchronous access for zcache (as well as cleancache and +frontswap) that may prove useful for future transcendent memory +implementations, such as KVM and NVRAM. While ramster works today on +any network connection that supports kernel sockets, its features may +become more interesting on future high-speed fabrics/interconnects. + +Ramster requires both kernel and userland support. The userland support, +called ramster-tools, is known to work with EL6-based distros, but is a +set of poorly-hacked slightly-modified cluster tools based on ocfs2, which +includes an init file, a config file, and a userland binary that interfaces +to the kernel. This state of userland support reflects the abysmal userland +skills of this suitably-embarrassed author; any help/patches to turn +ramster-tools into more distributable rpms/debs useful for a wider range +of distros would be appreciated. The source RPM that can be used as a +starting point is available at: + http://oss.oracle.com/projects/tmem/files/RAMster/ + +As a result of this author's ignorance, userland setup described in this +HOWTO assumes an EL6 distro and is described in EL6 syntax. Apologies +if this offends anyone! + +Kernel support has only been tested on x86_64. Systems with an active +ocfs2 filesystem should work, but since ramster leverages a lot of +code from ocfs2, there may be latent issues. A kernel configuration that +includes CONFIG_OCFS2_FS should build OK, and should certainly run OK +if no ocfs2 filesystem is mounted. + +This HOWTO demonstrates memory capacity load balancing for a two-node +cluster, where one node called the "local" node becomes overcommitted +and the other node called the "remote" node provides additional RAM +capacity for use by the local node. Ramster is capable of more complex +topologies; see the last section titled "ADVANCED RAMSTER TOPOLOGIES". + +If you find any terms in this HOWTO unfamiliar or don't understand the +motivation for ramster, the following LWN reading is recommended: +-- Transcendent Memory in a Nutshell (lwn.net/Articles/454795) +-- The future calculus of memory management (lwn.net/Articles/475681) +And since ramster is built on top of zcache, this article may be helpful: +-- In-kernel memory compression (lwn.net/Articles/545244) + +Now that you've memorized the contents of those articles, let's get started! + +A. PRELIMINARY + +1) Install two x86_64 Linux systems that are known to work when + upgraded to a recent upstream Linux kernel version. + +On each system: + +2) Configure, build and install, then boot Linux, just to ensure it + can be done with an unmodified upstream kernel. Confirm you booted + the upstream kernel with "uname -a". + +3) If you plan to do any performance testing or unless you plan to + test only swapping, the "WasActive" patch is also highly recommended. + (Search lkml.org for WasActive, apply the patch, rebuild your kernel.) + For a demo or simple testing, the patch can be ignored. + +4) Install ramster-tools as root. An x86_64 rpm for EL6-based systems + can be found at: + http://oss.oracle.com/projects/tmem/files/RAMster/ + (Sorry but for now, non-EL6 users must recreate ramster-tools on + their own from source. See above.) + +5) Ensure that debugfs is mounted at each boot. Examples below assume it + is mounted at /sys/kernel/debug. + +B. BUILDING RAMSTER INTO THE KERNEL + +Do the following on each system: + +1) Using the kernel configuration mechanism of your choice, change + your config to include: + + CONFIG_CLEANCACHE=y + CONFIG_FRONTSWAP=y + CONFIG_STAGING=y + CONFIG_CONFIGFS_FS=y # NOTE: MUST BE y, not m + CONFIG_ZCACHE=y + CONFIG_RAMSTER=y + + For a linux-3.10 or later kernel, you should also set: + + CONFIG_ZCACHE_DEBUG=y + CONFIG_RAMSTER_DEBUG=y + + Before building the kernel please doublecheck your kernel config + file to ensure all of the settings are correct. + +2) Build this kernel and change your boot file (e.g. /etc/grub.conf) + so that the new kernel will boot. + +3) Add "zcache" and "ramster" as kernel boot parameters for the new kernel. + +4) Reboot each system approximately simultaneously. + +5) Check dmesg to ensure there are some messages from ramster, prefixed + by "ramster:" + + # dmesg | grep ramster + + You should also see a lot of files in: + + # ls /sys/kernel/debug/zcache + # ls /sys/kernel/debug/ramster + + These are mostly counters for various zcache and ramster activities. + You should also see files in: + + # ls /sys/kernel/mm/ramster + + These are sysfs files that control ramster as we shall see. + + Ramster now will act as a single-system zcache on each system + but doesn't yet know anything about the cluster so can't yet do + anything remotely. + +C. CONFIGURING THE RAMSTER CLUSTER + +This part can be error prone unless you are familiar with clustering +filesystems. We need to describe the cluster in a /etc/ramster.conf +file and the init scripts that parse it are extremely picky about +the syntax. + +1) Create a /etc/ramster.conf file and ensure it is identical on both + systems. This file mimics the ocfs2 format and there is a good amount + of documentation that can be searched for ocfs2.conf, but you can use: + + cluster: + name = ramster + node_count = 2 + node: + name = system1 + cluster = ramster + number = 0 + ip_address = my.ip.ad.r1 + ip_port = 7777 + node: + name = system2 + cluster = ramster + number = 1 + ip_address = my.ip.ad.r2 + ip_port = 7777 + + You must ensure that the "name" field in the file exactly matches + the output of "hostname" on each system; if "hostname" shows a + fully-qualified hostname, ensure the name is fully qualified in + /etc/ramster.conf. Obviously, substitute my.ip.ad.rx with proper + ip addresses. + +2) Enable the ramster service and configure it. If you used the + EL6 ramster-tools, this would be: + + # chkconfig --add ramster + # service ramster configure + + Set "load on boot" to "y", cluster to start is "ramster" (or whatever + name you chose in ramster.conf), heartbeat dead threshold as "500", + network idle timeout as "1000000". Leave the others as default. + +3) Reboot both systems. After reboot, try (assuming EL6 ramster-tools): + + # service ramster status + + You should see "Checking RAMSTER cluster "ramster": Online". If you do + not, something is wrong and ramster will not work. Note that you + should also see that the driver for "configfs" is loaded and mounted, + the driver for ocfs2_dlmfs is not loaded, and some numbers for network + parameters. You will also see "Checking RAMSTER heartbeat: Not active". + That's all OK. + +4) Now you need to start the cluster heartbeat; the cluster is not "up" + until all nodes detect a heartbeat. In a real cluster, heartbeat detection + is done via a cluster filesystem, but ramster doesn't require one. Some + hack-y kernel code in ramster can start the heartbeat for you though if + you tell it what nodes are "up". To enable the heartbeat, do: + + # echo 0 > /sys/kernel/mm/ramster/manual_node_up + # echo 1 > /sys/kernel/mm/ramster/manual_node_up + + This must be done on BOTH nodes and, to avoid timeouts, must be done + approximately concurrently on both nodes. On an EL6 system, it is + convenient to put these lines in /etc/rc.local. To confirm that the + cluster is now up, on both systems do: + + # dmesg | grep ramster + + You should see ramster "Accepted connection" messages in dmesg on both + nodes after this. Note that if you check userland status again with + + # service ramster status + + you will still see "Checking RAMSTER heartbeat: Not active". That's + still OK... the ramster kernel heartbeat hack doesn't communicate to + userland. + +5) You now must tell each node the node to which it should "remotify" pages. + On this two node cluster, we will assume the "local" node, node 0, has + memory overcommitted and will use ramster to utilize RAM capacity on + the "remote node", node 1. To configure this, on node 0, you do: + + # echo 1 > /sys/kernel/mm/ramster/remote_target_nodenum + + You should see "ramster: node 1 set as remotification target" in dmesg + on node 0. Again, on EL6, /etc/rc.local is a good place to put this + on node 0 so you don't forget to do it at each boot. + +6) One more step: By default, the ramster code does not "remotify" any + pages; this is primarily for testing purposes, but sometimes it is + useful. This may change in the future, but for now, on node 0, you do: + + # echo 1 > /sys/kernel/mm/ramster/pers_remotify_enable + # echo 1 > /sys/kernel/mm/ramster/eph_remotify_enable + + The first enables remotifying swap (persistent, aka frontswap) pages, + the second enables remotifying of page cache (ephemeral, cleancache) + pages. + + On EL6, these lines can also be put in /etc/rc.local (AFTER the + node_up lines), or at the beginning of a script that runs a workload. + +7) Note that most testing has been done with both/all machines booted + roughly simultaneously to avoid cluster timeouts. Ideally, you should + do this too unless you are trying to break ramster rather than just + use it. ;-) + +D. TESTING RAMSTER + +1) Note that ramster has no value unless pages get "remotified". For + swap/frontswap/persistent pages, this doesn't happen unless/until + the workload would cause swapping to occur, at which point pages + are put into frontswap/zcache, and the remotification thread starts + working. To get to the point where the system swaps, you either + need a workload for which the working set exceeds the RAM in the + system; or you need to somehow reduce the amount of RAM one of + the system sees. This latter is easy when testing in a VM, but + harder on physical systems. In some cases, "mem=xxxM" on the + kernel command line restricts memory, but for some values of xxx + the kernel may fail to boot. One may also try creating a fixed + RAMdisk, doing nothing with it, but ensuring that it eats up a fixed + amount of RAM. + +2) To see if ramster is working, on the "remote node", node 1, try: + + # grep . /sys/kernel/debug/ramster/foreign_* + # # note, that is space-dot-space between grep and the pathname + + to monitor the number (and max) ephemeral and persistent pages + that ramster has sent. If these stay at zero, ramster is not working + either because the workload on the local node (node 0) isn't creating + enough memory pressure or because "remotifying" isn't working. On the + local system, node 0, you can watch lots of useful information also. + Try: + + grep . /sys/kernel/debug/zcache/*pageframes* \ + /sys/kernel/debug/zcache/*zbytes* \ + /sys/kernel/debug/zcache/*zpages* \ + /sys/kernel/debug/ramster/*remote* + + Of particular note are the remote_*_pages_succ_get counters. These + show how many disk reads and/or disk writes have been avoided on the + overcommitted local system by storing pages remotely using ramster. + + At the risk of information overload, you can also grep: + + /sys/kernel/debug/cleancache/* and /sys/kernel/debug/frontswap/* + + These show, for example, how many disk reads and/or disk writes have + been avoided by using zcache to optimize RAM on the local system. + + +AUTOMATIC SWAP REPATRIATION + +You may notice that while the systems are idle, the foreign persistent +page count on the remote machine slowly decreases. This is because +ramster implements "frontswap selfshrinking": When possible, swap +pages that have been remotified are slowly repatriated to the local +machine. This is so that local RAM can be used when possible and +so that, in case of remote machine crash, the probability of loss +of data is reduced. + +REBOOTING / POWEROFF + +If a system is shut down while some of its swap pages still reside +on a remote system, the system may lock up during the shutdown +sequence. This will occur if the network is shut down before the +swap mechansim is shut down, which is the default ordering on many +distros. To avoid this annoying problem, simply shut off the swap +subsystem before starting the shutdown sequence, e.g.: + + # swapoff -a + # reboot + +Ideally, this swapoff-before-ifdown ordering should be enforced permanently +using shutdown scripts. + +KNOWN PROBLEMS + +1) You may periodically see messages such as: + + ramster_r2net, message length problem + + This is harmless but indicates that a node is sending messages + containing compressed pages that exceed the maximum for zcache + (PAGE_SIZE*15/16). The sender side needs to be fixed. + +2) If you see a "No longer connected to node..." message or a "No connection + established with node X after N seconds", it is possible you may + be in an unrecoverable state. If you are certain all of the + appropriate cluster configuration steps described above have been + performed, try rebooting the two servers concurrently to see if + the cluster starts. + + Note that "Connection to node... shutdown, state 7" is an intermediate + connection state. As long as you later see "Accepted connection", the + intermediate states are harmless. + +3) There are known issues in counting certain values. As a result + you may see periodic warnings from the kernel. Almost always you + will see "ramster: bad accounting for XXX". There are also "WARN_ONCE" + messages. If you see kernel warnings with a tombstone, please report + them. They are harmless but reflect bugs that need to be eventually fixed. + +ADVANCED RAMSTER TOPOLOGIES + +The kernel code for ramster can support up to eight nodes in a cluster, +but no testing has been done with more than three nodes. + +In the example described above, the "remote" node serves as a RAM +overflow for the "local" node. This can be made symmetric by appropriate +settings of the sysfs remote_target_nodenum file. For example, by setting: + + # echo 1 > /sys/kernel/mm/ramster/remote_target_nodenum + +on node 0, and + + # echo 0 > /sys/kernel/mm/ramster/remote_target_nodenum + +on node 1, each node can serve as a RAM overflow for the other. + +For more than two nodes, a "RAM server" can be configured. For a +three node system, set: + + # echo 0 > /sys/kernel/mm/ramster/remote_target_nodenum + +on node 1, and + + # echo 0 > /sys/kernel/mm/ramster/remote_target_nodenum + +on node 2. Then node 0 is a RAM server for node 1 and node 2. + +In this implementation of ramster, any remote node is potentially a single +point of failure (SPOF). Though the probability of failure is reduced +by automatic swap repatriation (see above), a proposed future enhancement +to ramster improves high-availability for the cluster by sending a copy +of each page of date to two other nodes. Patches welcome! diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c index 522cb8e5514..dcceed29d31 100644 --- a/drivers/staging/zcache/zcache-main.c +++ b/drivers/staging/zcache/zcache-main.c @@ -1922,15 +1922,15 @@ out: #ifdef CONFIG_ZCACHE_MODULE #ifdef CONFIG_RAMSTER -module_param(ramster_enabled, int, S_IRUGO); +module_param(ramster_enabled, bool, S_IRUGO); module_param(disable_frontswap_selfshrink, int, S_IRUGO); #endif -module_param(disable_cleancache, int, S_IRUGO); -module_param(disable_frontswap, int, S_IRUGO); +module_param(disable_cleancache, bool, S_IRUGO); +module_param(disable_frontswap, bool, S_IRUGO); #ifdef FRONTSWAP_HAS_EXCLUSIVE_GETS module_param(frontswap_has_exclusive_gets, bool, S_IRUGO); #endif -module_param(disable_frontswap_ignore_nonactive, int, S_IRUGO); +module_param(disable_frontswap_ignore_nonactive, bool, S_IRUGO); module_param(zcache_comp_name, charp, S_IRUGO); module_init(zcache_init); MODULE_LICENSE("GPL"); diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile index a862e9173eb..48da25c96cd 100644 --- a/drivers/video/console/Makefile +++ b/drivers/video/console/Makefile @@ -18,6 +18,8 @@ font-objs-$(CONFIG_FONT_MINI_4x6) += font_mini_4x6.o font-objs += $(font-objs-y) +obj-$(CONFIG_FONTS) += font.o + # Each configuration option enables a list of files. obj-$(CONFIG_DUMMY_CONSOLE) += dummycon.o |