The correct way for a driver to specify the coherent DMA mask is not to directly access the field in the struct device, but to use dma_set_coherent_mask(). Only arch and bus code should access this member directly.
Convert all direct write accesses to using the correct API.
Signed-off-by: Russell King rmk+kernel@arm.linux.org.uk --- drivers/usb/chipidea/ci_hdrc_imx.c | 5 +++-- drivers/usb/dwc3/dwc3-exynos.c | 5 +++-- drivers/usb/gadget/lpc32xx_udc.c | 4 +++- drivers/usb/host/ehci-atmel.c | 5 +++-- drivers/usb/host/ehci-octeon.c | 4 +++- drivers/usb/host/ehci-omap.c | 8 +++++--- drivers/usb/host/ehci-orion.c | 5 +++-- drivers/usb/host/ehci-platform.c | 7 ++++--- drivers/usb/host/ehci-s5p.c | 5 +++-- drivers/usb/host/ehci-spear.c | 5 +++-- drivers/usb/host/ehci-tegra.c | 5 +++-- drivers/usb/host/ohci-at91.c | 7 ++++--- drivers/usb/host/ohci-exynos.c | 5 +++-- drivers/usb/host/ohci-nxp.c | 4 +++- drivers/usb/host/ohci-octeon.c | 4 +++- drivers/usb/host/ohci-omap3.c | 8 +++++--- drivers/usb/host/ohci-pxa27x.c | 6 ++++-- drivers/usb/host/ohci-spear.c | 5 +++-- drivers/usb/host/uhci-platform.c | 5 +++-- 19 files changed, 64 insertions(+), 38 deletions(-)
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index 74d998d..bf33bd3 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -123,8 +123,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + goto err_clk;
if (data->usbmisc_data) { ret = imx_usbmisc_init(data->usbmisc_data); diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index 2f2e88a..c10b324 100644 --- a/drivers/usb/dwc3/dwc3-exynos.c +++ b/drivers/usb/dwc3/dwc3-exynos.c @@ -121,8 +121,9 @@ static int dwc3_exynos_probe(struct platform_device *pdev) */ if (!dev->dma_mask) dev->dma_mask = &dev->coherent_dma_mask; - if (!dev->coherent_dma_mask) - dev->coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + if (ret) + goto err1;
platform_set_drvdata(pdev, exynos);
diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c index 67128be..6a2a65a 100644 --- a/drivers/usb/gadget/lpc32xx_udc.c +++ b/drivers/usb/gadget/lpc32xx_udc.c @@ -3078,7 +3078,9 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev) udc->isp1301_i2c_client->addr);
pdev->dev.dma_mask = &lpc32xx_usbd_dmamask; - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (retval) + goto resource_fail;
udc->board = &lpc32xx_usbddata;
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 3b645ff..5831a88 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -92,8 +92,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (retval) + goto fail_create_hcd;
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index ab0397e..4c528b2 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -116,8 +116,10 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev) * We can DMA from anywhere. But the descriptors must be in * the lower 4GB. */ - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); pdev->dev.dma_mask = &ehci_octeon_dma_mask; + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret;
hcd = usb_create_hcd(&ehci_octeon_hc_driver, &pdev->dev, "octeon"); if (!hcd) diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 78b01fa..d0759c5 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -104,7 +104,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) struct resource *res; struct usb_hcd *hcd; void __iomem *regs; - int ret = -ENODEV; + int ret; int irq; int i; struct omap_hcd *omap; @@ -146,9 +146,11 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) */ if (!dev->dma_mask) dev->dma_mask = &dev->coherent_dma_mask; - if (!dev->coherent_dma_mask) - dev->coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + if (ret) + return ret;
+ ret = -ENODEV; hcd = usb_create_hcd(&ehci_omap_hc_driver, dev, dev_name(dev)); if (!hcd) { diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index d1dfb9d..5870206 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -182,8 +182,9 @@ static int ehci_orion_drv_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) + goto err1;
if (!request_mem_region(res->start, resource_size(res), ehci_orion_hc_driver.description)) { diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index f6b790c..5b0cd2d 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -78,7 +78,7 @@ static int ehci_platform_probe(struct platform_device *dev) struct resource *res_mem; struct usb_ehci_pdata *pdata; int irq; - int err = -ENOMEM; + int err;
if (usb_disabled()) return -ENODEV; @@ -91,8 +91,9 @@ static int ehci_platform_probe(struct platform_device *dev) dev->dev.platform_data = &ehci_platform_defaults; 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); + err = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32)); + if (err) + return err;
pdata = dev_get_platdata(&dev->dev);
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 7c3de95..10d6a2e 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -91,8 +91,9 @@ static int s5p_ehci_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) + return err;
s5p_setup_vbus_gpio(pdev);
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c index 1cf0adb..6839e15 100644 --- a/drivers/usb/host/ehci-spear.c +++ b/drivers/usb/host/ehci-spear.c @@ -83,8 +83,9 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (retval) + goto fail;
usbh_clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(usbh_clk)) { diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 78fa76d..3d9ee43 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -364,8 +364,9 @@ static int tegra_ehci_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) + return err;
hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev, dev_name(&pdev->dev)); diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index caa3764..eb7a2cb 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -524,7 +524,7 @@ MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids); static int ohci_at91_of_init(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - int i, gpio; + int i, gpio, ret; enum of_gpio_flags flags; struct at91_usbh_data *pdata; u32 ports; @@ -538,8 +538,9 @@ static int ohci_at91_of_init(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index dc6ee9a..ed685cb 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -116,8 +116,9 @@ static int exynos_ohci_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) + return err;
exynos_ohci = devm_kzalloc(&pdev->dev, sizeof(struct exynos_ohci_hcd), GFP_KERNEL); diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index 7d7d507..5f82db4 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -226,8 +226,10 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev) return -EPROBE_DEFER; }
- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + goto fail_disable;
dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (nxp)\n", hcd_name); if (usb_disabled()) { diff --git a/drivers/usb/host/ohci-octeon.c b/drivers/usb/host/ohci-octeon.c index 342dc7e..ac1dea1 100644 --- a/drivers/usb/host/ohci-octeon.c +++ b/drivers/usb/host/ohci-octeon.c @@ -127,8 +127,10 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev) }
/* Ohci is a 32-bit device. */ - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret;
hcd = usb_create_hcd(&ohci_octeon_hc_driver, &pdev->dev, "octeon"); if (!hcd) diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c index a09af26..664f5dc 100644 --- a/drivers/usb/host/ohci-omap3.c +++ b/drivers/usb/host/ohci-omap3.c @@ -132,7 +132,7 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev) struct usb_hcd *hcd = NULL; void __iomem *regs = NULL; struct resource *res; - int ret = -ENODEV; + int ret; int irq;
if (usb_disabled()) @@ -168,9 +168,11 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev) */ if (!dev->dma_mask) dev->dma_mask = &dev->coherent_dma_mask; - if (!dev->coherent_dma_mask) - dev->coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + if (ret) + goto err_io;
+ ret = -ENODEV; hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev, dev_name(dev)); if (!hcd) { diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 93371a2..74696ae 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -287,6 +287,7 @@ static int ohci_pxa_of_init(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct pxaohci_platform_data *pdata; u32 tmp; + int ret;
if (!np) return 0; @@ -297,8 +298,9 @@ static int ohci_pxa_of_init(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c index cc9dd9e..195a0a1 100644 --- a/drivers/usb/host/ohci-spear.c +++ b/drivers/usb/host/ohci-spear.c @@ -113,8 +113,9 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (retval) + goto fail;
usbh_clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(usbh_clk)) { diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index d033a0e..048912d 100644 --- a/drivers/usb/host/uhci-platform.c +++ b/drivers/usb/host/uhci-platform.c @@ -77,8 +77,9 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev) */ if (!pdev->dev.dma_mask) pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask; - if (!pdev->dev.coherent_dma_mask) - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) + return ret;
hcd = usb_create_hcd(&uhci_platform_hc_driver, &pdev->dev, pdev->name);