staging: comedi: mite: mite_io_addr and daq_io_addr are void __iomem *
authorH Hartley Sweeten <hartleys@visionengravers.com>
Tue, 8 May 2012 23:19:34 +0000 (16:19 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 9 May 2012 20:36:27 +0000 (13:36 -0700)
The mite_io_addr and daq_io_addr variables in struct mite_struct
are both ioremap'ed pci resources and should be void __iomem *
not void *.

This quiets a lot of sparse warings for the write[lwb],read[lwb]
calls in the comedi mite drives 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 *

It also exposed some warnings in the mite ni_660x driver where
the daq_io_address was getting cast as a void *const.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/mite.h
drivers/staging/comedi/drivers/ni_660x.c

index 999551f..83f1b27 100644 (file)
@@ -66,9 +66,9 @@ struct mite_struct {
 
        struct pci_dev *pcidev;
        resource_size_t mite_phys_addr;
-       void *mite_io_addr;
+       void __iomem *mite_io_addr;
        resource_size_t daq_phys_addr;
-       void *daq_io_addr;
+       void __iomem *daq_io_addr;
 
        struct mite_channel channels[MAX_MITE_DMA_CHANNELS];
        short channel_allocated[MAX_MITE_DMA_CHANNELS];
index eea7047..21eb7fb 100644 (file)
@@ -761,7 +761,7 @@ static inline void ni_660x_write_register(struct comedi_device *dev,
                                          unsigned chip_index, unsigned bits,
                                          enum NI_660x_Register reg)
 {
-       void *const write_address =
+       void __iomem *write_address =
            private(dev)->mite->daq_io_addr + GPCT_OFFSET[chip_index] +
            registerData[reg].offset;
 
@@ -784,7 +784,7 @@ static inline unsigned ni_660x_read_register(struct comedi_device *dev,
                                             unsigned chip_index,
                                             enum NI_660x_Register reg)
 {
-       void *const read_address =
+       void __iomem *read_address =
            private(dev)->mite->daq_io_addr + GPCT_OFFSET[chip_index] +
            registerData[reg].offset;