From: Lino Sanfilippo Date: Fri, 22 Jul 2016 21:09:13 +0000 (+0200) Subject: staging: slicoss: ensure mapping of io-memory is uncached X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=6d5f2ea7418d054721f8331ec2c2c0825e0ff52e;p=openwrt%2Fstaging%2Fblogic.git staging: slicoss: ensure mapping of io-memory is uncached Writes to registers should be done uncached for various reasons. Ensure this by replacing ioremap() with ioremap_nocache(). Signed-off-by: Lino Sanfilippo Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c index a9323a9f37d9..4dba08082911 100644 --- a/drivers/staging/slicoss/slicoss.c +++ b/drivers/staging/slicoss/slicoss.c @@ -3136,7 +3136,7 @@ static int slic_entry_probe(struct pci_dev *pcidev, mmio_start = pci_resource_start(pcidev, 0); mmio_len = pci_resource_len(pcidev, 0); - memmapped_ioaddr = ioremap(mmio_start, mmio_len); + memmapped_ioaddr = ioremap_nocache(mmio_start, mmio_len); if (!memmapped_ioaddr) { dev_err(&pcidev->dev, "cannot remap MMIO region %lx @ %lx\n", mmio_len, mmio_start);