From: H Hartley Sweeten <hartleys@visionengravers.com>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: <devel@driverdev.osuosl.org>, <abbotti@mev.co.uk>,
<fmhess@users.sourceforge.net>, <gregkh@linuxfoundation.org>
Subject: [PATCH] staging: comedi: gsc_hpdi: plx9080_iobase and hpdi_iobase are void __iomem *
Date: Mon, 21 May 2012 17:52:07 -0700 [thread overview]
Message-ID: <201205211752.08267.hartleys@visionengravers.com> (raw)
The plx9080_iobase and hpdi_iobase variables in struct hpdi_private
are ioremap'ed pci resource and should be void __iomem * not void *.
This quiets a lot of sparse warings for the writel and readl calls
like:
warning: incorrect type in argument 1 (different address spaces)
expected void const volatile [noderef] <asn:2>*addr
got void *<noident>
warning: incorrect type in argument 2 (different address spaces)
expected void volatile [noderef] <asn:2>*addr
got void *
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Mori Hess <fmhess@users.sourceforge.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index 8aece08..e41c664 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -297,8 +297,8 @@ struct hpdi_private {
resource_size_t plx9080_phys_iobase;
resource_size_t hpdi_phys_iobase;
/* base addresses (ioremapped) */
- void *plx9080_iobase;
- void *hpdi_iobase;
+ void __iomem *plx9080_iobase;
+ void __iomem *hpdi_iobase;
uint32_t *dio_buffer[NUM_DMA_BUFFERS]; /* dma buffers */
/* physical addresses of dma buffers */
dma_addr_t dio_buffer_phys_addr[NUM_DMA_BUFFERS];
@@ -364,7 +364,7 @@ static void disable_plx_interrupts(struct comedi_device *dev)
static void init_plx9080(struct comedi_device *dev)
{
uint32_t bits;
- void *plx_iobase = priv(dev)->plx9080_iobase;
+ void __iomem *plx_iobase = priv(dev)->plx9080_iobase;
/* plx9080 dump */
DEBUG_PRINT(" plx interrupt status 0x%x\n",
@@ -673,10 +673,10 @@ static void hpdi_detach(struct comedi_device *dev)
if ((priv(dev)) && (priv(dev)->hw_dev)) {
if (priv(dev)->plx9080_iobase) {
disable_plx_interrupts(dev);
- iounmap((void *)priv(dev)->plx9080_iobase);
+ iounmap(priv(dev)->plx9080_iobase);
}
if (priv(dev)->hpdi_iobase)
- iounmap((void *)priv(dev)->hpdi_iobase);
+ iounmap(priv(dev)->hpdi_iobase);
/* free pci dma buffers */
for (i = 0; i < NUM_DMA_BUFFERS; i++) {
if (priv(dev)->dio_buffer[i])
@@ -903,7 +903,7 @@ static void drain_dma_buffers(struct comedi_device *dev, unsigned int channel)
uint32_t next_transfer_addr;
int j;
int num_samples = 0;
- void *pci_addr_reg;
+ void __iomem *pci_addr_reg;
if (channel)
pci_addr_reg =
reply other threads:[~2012-05-22 0:52 UTC|newest]
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