Unmap the rx buffer before mapping the new one in rtl8192_rx.
Failing to do so quickly exhausts the IOMMU memory during downloads:
[...] DMA: Out of SW-IOMMU space for 9100 bytes at device ...
Using "iommu=off mem=4g" also fixes the problem because
then pci_map_single does not allocate memory.
Tested on my personal laptop with a RTL8192E device. Without this
patch the kernel quickly runs out of IOMMU memory (downloading 5 MB
of data is sufficient to trigger it), with this patch applied
I haven't experienced any issues so far.
Signed-off-by: Daniel Lichtenberger <daniel.lichtenberger@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Changed to use the proper ccflags-y option
Signed-off-by: Tracey Dent <tdent48227@gmail.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The 1 element of the array is tested twice. Change the code so that the
remaining 3 element of the array is tested instead of testing the 1 element
a second time.
The sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@expression@
expression E;
@@
(
* E
|| ... || E
|
* E
&& ... && E
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Obviously the wrong spelling was copied a lot of times.
A similar patch for the non-staging part of linux
is committed by Jiri Kosina.
Cc: devel@driverdev.osuosl.org
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replace C99-style comments with C89-style comments, fix some typos,
and fix whitespace to use only tabs.
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Make functions static and move their declarations to
the top of the file.
Signed-off-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Driver should call disable_pci_device() if it returns from pci_probe()
with error.
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In the original code there was some extra semicolons after the if
statement:
if (!channel_map[ieee->current_network.channel]);
^^^
>From the indenting it looked like that should be curly braces instead.
Also I made some white space changes to stop checkpatch.pl from
complaining.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
sysfs-writable charp arguments need to be locked against modification
(since the old ones may be kfreed underneath us). String arguments
are much simpler, so use them for small strings (eg. IFNAMSIZ).
lkdtm only uses the parameters at module initialization time, so there's
not much point making them writable.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: M. Mohan Kumar <mohan@in.ibm.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Julia Lawall <julia@diku.dk>
Cc: devel@driverdev.osuosl.org
