linux.git/drivers/uio, branch v2.6.26-rc7

UIO: fix race in device_create

2008-05-20T20:31:55+00:00

There is a race from when a device is created with device_create() and
then the drvdata is set with a call to dev_set_drvdata() in which a
sysfs file could be open, yet the drvdata will be NULL, causing all
sorts of bad things to happen.

This patch fixes the problem by using the new function,
device_create_drvdata().

Cc: Kay Sievers 
Cc: Hans J. Koch 
Signed-off-by: Greg Kroah-Hartman

UIO: hold a reference to the device's owner while the device is open

2008-04-20T02:10:18+00:00

Otherwise the device might just disappear while /dev/uioX is being used
which results in an Oops.

Signed-off-by: Uwe Kleine-König 
Signed-off-by: Hans J Koch 
Signed-off-by: Greg Kroah-Hartman

UIO: Implement a UIO interface for the SMX Cryptengine

2008-04-20T02:10:18+00:00

This patch implements a UIO interface for the SMX Cryptengine.

The Cryptengine found on the Nias Digital SMX board is best suited
for a UIO interface.  It is not wired in to the cryptographic API
as the engine handles it's own keys, algorithms, everything.  All
that we know about is that if there's room in the buffer, you can
write data to it and when there's data ready, you read it out again.

There isn't necessarily even any direct correlation between data
going in and data coming out again, the engine may consume or
generate data all on its own.

This driver is for proprietary hardware but we're always told to
submit the drivers anyway; here you are.  :-)

This is version 4 of this patch and addresses all issues raised by
Hans-Jürgen Koch and Paul Mundt in their reviews.  Slightly altered
is Paul's suggestion to use DRV_NAME and DRV_VERSION as the UIO
version and name.  While at the moment they are the same, there
is no reason for them to stay that way.  Nevertheless we now at
least provide a MODULE_VERSION macro to keep modinfo happy.

Signed-off-by: Ben Nizette 
Acked-by: Paul Mundt 
Signed-off-by: Hans J Koch 
Signed-off-by: Greg Kroah-Hartman

UIO: Remove needless PCI_DEVICE_ID definition from uio_cif.c

2008-04-20T02:10:18+00:00

Meanwhile, PCI_DEVICE_ID_PLX_9030 is defined in pci_ids.h, no need to
define it again in the driver.

Signed-off-by: Hans J. Koch 
CC: Benedikt Spranger 
Signed-off-by: Greg Kroah-Hartman

uio: mark pci_device_id hilscher_pci_ids[] __devinitdata

2008-04-20T02:10:17+00:00

Signed-off-by: Denis Cheng 
Signed-off-by: Hans J. Koch 
Signed-off-by: Greg Kroah-Hartman

uio: Kconfig improvements

2008-04-20T02:10:17+00:00

Signed-off-by: Denis Cheng 
Signed-off-by: Hans J. Koch 
Signed-off-by: Greg Kroah-Hartman

UIO: add pgprot_noncached() to UIO mmap code

2008-03-25T05:33:49+00:00

Mapping of physical memory in UIO needs pgprot_noncached() to ensure
that IO memory is not cached. Without pgprot_noncached(), it (accidentally)
works on x86 and arm, but fails on PPC.

Signed-off-by: Jean-Samuel Chenard 
Signed-off-by: Hans J Koch 
Cc: stable 
Signed-off-by: Greg Kroah-Hartman

UIO: fix Greg's stupid changes

2008-02-21T23:27:07+00:00

This fixes two bugs with UIO that cropped up recently in -rc1

1) WARNING: at fs/sysfs/file.c:334 sysfs_open_file when trying to open
   a map addr/size file - complaining about missing sysfs_ops for ktype

2) Permission denied when reading uio/uio0/maps/map0/{addr,size} when
   files are mode S_IRUGO

Also fix a typo: attr_attribute -> addr_attribute

Signed-off-by: Brandon Philips 
Signed-off-by: Hans J. Koch 
Signed-off-by: Greg Kroah-Hartman

uio: nopage

2008-02-06T18:41:07+00:00

Convert uio from nopage to fault.

Signed-off-by: Nick Piggin 
Acked-by: Hans J Koch 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

UIO: constify function pointer tables

2008-01-25T04:40:43+00:00

Signed-off-by: Jan Engelhardt 
Signed-off-by: Greg Kroah-Hartman