kretprobe_trampoline_holder() is in kprobes section but used to
register a kprobe in arch_init_kprobes(). Hence register_kprobe()
and therefore arch_init_kprobes() will fail.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
In case of an illegal op the die notifier gets called with DIE_TRAP
instead of DIE_BPT first.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The reserve/release IOCTLs sometimes do not work. If second system
does a 'steal lock' the pending unit check (Format 3 Msg F) is
delivered. Since ERP is disabled for reserve/release, the IOCTL call
fails. We have to allow basic ERP (retries) for reserve/release IOCTLs.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Logging of relevant information is already done by disciplines
dump_sense function.
Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
cpu_relax() has barrier() semantics hence there is no need to use both
of them in conjunction in sclp_sync_wait(). Also change cpu_relax()
so it's more obvious that it has barrier semantics.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Create/remove the channel measurement binary files with
device_{create,remove}_bin_file instead of sysfs_{create,remove}_bin_file.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
local_bh_disable/_local_bh_enable must not be called if in_irq() is
true. Besides that if in_interrupt() is true bottom halves are
disabled anyway.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Currently loaded DCSS segments are now listed in /proc/iomem with
their name followed by a trailing "(DCSS)".
Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
If we try to start path verification when an unsolicited interrupt
is already pending, stctl shows status pending and we delay path
verification again. We need to check for the doverify bit when the
unsolicited interrupt comes in and then do path verification.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
FCP dump feature detection works only if the sclp command in head.S
was succesful. Since the sclp command is skipped if diag260 works,
we don't have any dump feature detection anymore.
Bug was introduced with d57de5a36791cb1b7285649c62f183b0d3505f7d.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The initialization of the dasd_eer code is one of the last steps of the
dasd driver initialization. When initialization fails in one of the
earlier steps, the dasd_exit function is called to clean up what has been
done so far. So the dasd_eer_exit function may be called, although the
dasd_eer_init function wasn't called before and dasd_eer_exit tries to
unregister a misc device that wasn't registered, which results in a BUG.
Make sure that dasd_eer_exit can be called without initialization. Use a
dynamically allocated struct miscdevice instead of a static one, so we
only try to unregister the device if it exists and was actually registered.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Requests are aborted when the sclp interface reports 'not operational'
even though they may still be active at the sclp, leading to concurrent
writes to request memory by both the kernel and the sclp interface.
Do not abort requests for which the sclp interface reports not
operational status during request retry.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>5A
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
No need to use lrag in 64 bit addressing mode since lra will do the
same.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Since ssd_info is now available before the subchannel is registered,
we don't need to check whether it is available.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Change the bounce buffer logic of cpcmd. diag8 needs _real_ memory below
2GB. Therefore vmalloced data does not work. As the data might cross a
page boundary, we cannot use virt_to_page either. The solution is to use
virt_to_page only in the check for a bounce buffer.
There was a redundant check for response==NULL. response < 2GB contains
this check as well.
I also removed the rlen==0 check, since rlen=0 and response!=NULL would
be a caller bug and response==NULL is already checked.
Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Remove the Remove inline declaration of efi_get_pal_addr() as it is
declared in linux/efi.h.
Signed-Off-By: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
linux/uaccess.h was being included, but it seems that
really the following includes are needed.
asm/page.h: for __va() and PAGE_SHIFT
asm/uaccess.h: for copy_to_user()
I guess that linux/uaccess.h pulls in both asm/page.h and asm/uaccess.h.
I notices this while backporting the code to xen's linux-2.6.16.33,
which does not have linux/uaccess.h. I'm posting it as I think it is a
correct, though somewhat cosmetic fix.
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Fix a typo in the saved_max_pfn description in contig.c
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Set saved_max_pfn when discontig memory is in use.
This sets up saved_max_pfn when disctontig memory is in use.
This mirrors the code for contig memory.
This patch does not entirely solve the problem of making vmcore work,
however it does appear to be neccessary. Please consider applying.
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Kexec support for 2.6.20 on ia64 does not build properly using a config
made up by CONFIG_SMP=n and CONFIG_HOTPLUG_CPU=n:
Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Jay Lan <jlan@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Some HID devices by Apple have both keyboard and mouse interfaces; the
keyboard interface is handled by usbhid, but the mouse (really
touchpad) interface must be handled by the separate 'appletouch'
driver. Using HID_QUIRK_IGNORE will make hiddev ignore both
interfaces, therefore a new quirk flag to ignore only the mouse
interface is required.
Signed-off-by: Soeren Sonnenburg <kernel@nn7.de>
Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
CONFIG_INPUT_DEBUG is non-existent option, so remove anything depending
on it.
Also, as we have new CONFIG_HID_DEBUG, this should be used on places
where ifdef DEBUG was used before.
Suggested by Adrian Bunk.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The comment in hid_get_class_descriptor() says a very obvious thing
and is also violating codingstyle. Just remove it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The unused hid_find_field_by_usage() function has been commented out for
a pretty long time. Remove it completely.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hidinput_{open,close}() functions do not belong to usbhid, but
to the generic HID layer. Move them, and fix hooks in struct
hid_device, so that now the callbacks are done to transport-specific
_open() functions, but not input_open() functions.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hid-debug.h contains a lot of code, and should not therefore
be a header.
This patch moves the code to generic hid layer as .c source, and
introduces CONFIG_HID_DEBUG to conditionally compile it, instead
of playing with #define DEBUG and including hid-debug.h.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a force feedback driver for PantherLord USB/PS2 2in1 Adapter,
0810:0001. The device identifies itself as "Twin USB Joystick".
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add new quirk HID_QUIRK_SKIP_OUTPUT_REPORTS to skip output reports
when enumerating reports on a hid-input device. Add this quirk and
HID_QUIRK_MULTI_INPUT to 0810:0001.
PantherLord Twin USB Joystick, 0810:0001 has separate input reports
for 2 distinct game controllers in the same interface, so it needs
HID_QUIRK_MULTI_INPUT. However, the device also contains one output
report per controller which is used to control the force feedback
function, and we do not want those to appear as separate input
devices as well. The simplest approach seems to be to add a quirk to
skip output reports on 0810:0001, and allow the force feedback
driver to handle those.
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Allow hid devices with HID_QUIRK_MULTI_INPUT to have force feedback.
This was previously disabled because there were not any force
feedback drivers for such devices. This will change with my upcoming
patch.
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Remove prototypes for functions that don't exist.
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This patch removes do_mmap() from ehca:
- Call remap_pfn_range() for hardware register block
- Use vm_insert_page() to register memory allocated for completion
queues and queue pairs
- The actual mmap() call/trigger is now controlled by user space,
ie. libehca
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
The iWARP connection manager uses the ib_addr services to do route
resolution (neighbour discovery in the IP world). The ib_addr
netevent callback routine, however, currently only acts on InfiniBand
neighbour updates. It needs to act on ethernet neighbour updates as
well.
This patch just removes filtering on device type altogether and will
trigger on any neighour updates where the nud_type is valid. This
simplifies the code some.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Make the untyped data region in ib_user_mad have type u64 so that it
gets aligned properly. This avoids alignment faults in ib_umad when
casting the data field to an rmpp_mad and accessing the 64-bit tid
field on architectures like ia64.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
When there is a call to send_tsk_mgmt SRP posts a send and waits for 5
seconds to get a response.
When the QP is in the error state it is obvious that there will be no
response so it is quite useless to wait. In fact, the timeout causes
SRP to wait a long time to reconnect when a QP error occurs. (Each
abort and each reset_device calls send_tsk_mgmt, which waits for the
timeout). The following patch solves this problem by identifying the
failure and returning an immediate error code.
Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
struct ib_wc currently only includes the local QP number: this matches
the IB spec, but seems mostly useless. The following patch replaces
this with the pointer to qp itself, and updates all low level drivers
and all users.
This has the following advantages:
- Ability to get a per-qp context through wc->qp->qp_context
- Existing drivers already have the qp pointer ready in poll cq, so
this change actually saves a tiny bit (extra memory read) on data path
(for ehca it would actually be expensive to find the QP pointer when
polling a CQ, but ehca does not support SRQ so we can leave wc->qp as
NULL for ehca)
- Users that need the QP number can still get it through wc->qp->qp_num
Use case:
In IPoIB connected mode code, I have a common CQ shared by multiple
QPs. To track connection usage, I need a way to get at some per-QP
context upon the completion, and I would like to avoid allocating
context object per work request just to stick a QP pointer into it.
With this code, I can just use wc->qp->qp_context.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
<rdma/ib_verbs.h> uses struct kref, so it should include <linux/kref.h>
explicitly to avoid hidden include dependencies.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Since we actively avoid highmem, calling kmap_atomic() instead
of page_address() is effectively only obfuscation.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Since we actively avoid highmem, calling kmap_atomic() instead
of page_address() is effectively only obfuscation.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Since we actively avoid highmem, calling kmap_atomic() instead
of page_address() is effectively only obfuscation.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
MMC high-speed, wide bus support and SD high-speed
are functions that aren't critical for correct
operation of the card. As such, they shouldn't mark
the card as bad or dead when there is a failure
activating these features.
This is needed in particular on some really stupid
hardware (e.g. Winbond's) where not all data transfer
commands are supported.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
