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2010-03-11kprobes: Calculate the index correctly when freeing the out-of-line ↵Masami Hiramatsu
execution slot From : Ananth N Mavinakayanahalli <ananth@in.ibm.com> When freeing the instruction slot, the arithmetic to calculate the index of the slot in the page needs to account for the total size of the instruction on the various architectures. Calculate the index correctly when freeing the out-of-line execution slot. Reported-by: Sachin Sant <sachinp@in.ibm.com> Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> LKML-Reference: <4B9667AB.9050507@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11microblaze: Add support for Xilinx PCI host bridgeMichal Simek
This patch is based on powerpc patch 64f16502475ddf663169369fffff6da9b10ea9fb We did some cleanups and removed powerpc parts. There is one new debug early listing function too. Exclude function is only in Debug options. We tested in on custom board. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Enable PCI, missing filesMichal Simek
There are two parts of changes. The first is just enable PCI in Makefiles and in Kconfig. The second is the rest of missing files. I didn't want to add it with previous patch because that patch is too big. Current Microblaze toolchain has problem with weak symbols that's why is necessary to apply this changes to be possible to compile pci support. Xilinx knows about this problem. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add core PCI filesMichal Simek
Add pci-common.h and pci32.c. Files are based on PPC version. There are removed ppc specific parts and the code was completely clean. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add pci-bridge.hMichal Simek
Add pci-bridge.h for Microblaze. It is based on powerpc header file. My changes: I removed PPC_ prefix from constants Removed ppc64 specifis parts Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add pci.hMichal Simek
Add pci.h for microblaze. It is based on powerpc pci.h Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: io.h include asm-generic/iomap.hMichal Simek
I need to use generic/iomap.h for PCI that's why is necessary to include it and fix ioport_{map,unmap} functions. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11sched: Cleanup: remove unused variable in try_to_wake_up()Dan Carpenter
We haven't used the "orig_rq" variable since 055a00865d "Fix/add missing update_rq_clock() calls" Signed-off-by: Dan Carpenter <error27@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: efault@gmx.de LKML-Reference: <20100306111752.GL4958@bicker> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11microblaze: Add irq_create_{of_,}mapping functionsMichal Simek
Support function for PCI. We don't use any advance mapping mechanism that's why implementation is simple. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Add {z,}alloc_maybe_bootmem functionsMichal Simek
I will need {z,}alloc_maybe_bootmem functions for pci patches Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Implement __dma_sync_pageMichal Simek
There is necessary to do some cache handling for dma operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11microblaze: Support DMAMichal Simek
Add DMA support for Microblaze. There are some part of this new feature: 1. Basic DMA support 2. Enable DMA debug option 3. Setup notifier Ad 1. dma-mapping come from powerpc and x86 version and it is based on generic dma-mapping-common.h Ad 2. DMA support debug features which is used in generic file. For more information please look at Documentation/DMA-API.txt Ad 3. notifier is very important to setup dma_ops. Without this part for example ll_temac driver failed because there are no setup dma operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11Merge branch 'tip/tracing/core' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent
2010-03-11x86/mce: Fix RCU lockdep splatsPaul E. McKenney
Create an rcu_dereference_check_mce() that checks for RCU-sched read side and mce_read_mutex being held on update side. Replace uses of rcu_dereference() in arch/x86/kernel/cpu/mcheck/mce.c with this new macro. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <1267830207-9474-3-git-send-email-paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11rcu: Increase RCU CPU stall timeouts if PROVE_RCUPaul E. McKenney
CONFIG_PROVE_RCU imposes additional overhead on the kernel, so increase the RCU CPU stall timeouts in an attempt to allow for this effect. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <1267830207-9474-2-git-send-email-paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11ftrace: Replace read_barrier_depends() with rcu_dereference_raw()Paul E. McKenney
Replace the calls to read_barrier_depends() in ftrace_list_func() with rcu_dereference_raw() to improve readability. The reason that we use rcu_dereference_raw() here is that removed entries are never freed, instead they are simply leaked. This is one of a very few cases where use of rcu_dereference_raw() is the long-term right answer. And I don't yet know of any others. ;-) Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <1267830207-9474-1-git-send-email-paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11perf tools: Fix sparse CPU numbering related bugsPaul Mackerras
At present, the perf subcommands that do system-wide monitoring (perf stat, perf record and perf top) don't work properly unless the online cpus are numbered 0, 1, ..., N-1. These tools ask for the number of online cpus with sysconf(_SC_NPROCESSORS_ONLN) and then try to create events for cpus 0, 1, ..., N-1. This creates problems for systems where the online cpus are numbered sparsely. For example, a POWER6 system in single-threaded mode (i.e. only running 1 hardware thread per core) will have only even-numbered cpus online. This fixes the problem by reading the /sys/devices/system/cpu/online file to find out which cpus are online. The code that does that is in tools/perf/util/cpumap.[ch], and consists of a read_cpu_map() function that sets up a cpumap[] array and returns the number of online cpus. If /sys/devices/system/cpu/online can't be read or can't be parsed successfully, it falls back to using sysconf to ask how many cpus are online and sets up an identity map in cpumap[]. The perf record, perf stat and perf top code then calls read_cpu_map() in the system-wide monitoring case (instead of sysconf) and uses cpumap[] to get the cpu numbers to pass to perf_event_open. Signed-off-by: Paul Mackerras <paulus@samba.org> Cc: Anton Blanchard <anton@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> LKML-Reference: <20100310093609.GA3959@brick.ozlabs.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11perf_event: Fix oops triggered by cpu offline/onlinePaul Mackerras
Anton Blanchard found that he could reliably make the kernel hit a BUG_ON in the slab allocator by taking a cpu offline and then online while a system-wide perf record session was running. The reason is that when the cpu comes up, we completely reinitialize the ctx field of the struct perf_cpu_context for the cpu. If there is a system-wide perf record session running, then there will be a struct perf_event that has a reference to the context, so its refcount will be 2. (The perf_event has been removed from the context's group_entry and event_entry lists by perf_event_exit_cpu(), but that doesn't remove the perf_event's reference to the context and doesn't decrement the context's refcount.) When the cpu comes up, perf_event_init_cpu() gets called, and it calls __perf_event_init_context() on the cpu's context. That resets the refcount to 1. Then when the perf record session finishes and the perf_event is closed, the refcount gets decremented to 0 and the context gets kfreed after an RCU grace period. Since the context wasn't kmalloced -- it's part of a per-cpu variable -- bad things happen. In fact we don't need to completely reinitialize the context when the cpu comes up. It's sufficient to initialize the context once at boot, but we need to do it for all possible cpus. This moves the context initialization to happen at boot time. With this, we don't trash the refcount and the context never gets kfreed, and we don't hit the BUG_ON. Reported-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org> Tested-by: Anton Blanchard <anton@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-03-11GFS2: Allow the number of committed revokes to temporarily be negativeBenjamin Marzinski
GFS2 tracks the number of revokes and unrevokes that are part of committed transactions via sd_log_commited_revoke. It is possible for one process to add revokes during its transaction, while another process unrevokes them during its transaction. If the second process finishes its transaction first, sd_log_commited_revoke will be decremented by the number of unrevokes that the second process did, without first being incremented by the number of revokes the first process did. This is fine, since all started transactions must be completed before the journal can be flushed. However, sd_log_commited_revoke is an unsigned integer, and log_refund() causes an assertion failure if it would go negative at the end of a transaction. This patch makes sd_log_commited_revoke a signed integer and allows it to go negative. __gfs2_log_flush() still checks that it mataches the actual number of revokes. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-03-11Input: wm831x-on - convert to use genirqMark Brown
Now that the WM831x core has been converted to use genirq for the interrupt controller there is no need for the client drivers to use a WM831x-specific API rather than just calling genirq directly. Also fixes a leak of the IRQ during init failure - the error path free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-03-11Input: ads7846 - add wakeup supportRanjith Lohithakshan
Add wakeup support to the ads7846 driver. Platforms can enable wakeup capability by setting the wakeup flag in ads7846_platform_data. With this patch the ads7846 driver can be used to wake the system from suspend. Signed-off-by: Ranjith Lohithakshan <ranjithl@ti.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-03-11Input: appletouch - fix integer overflow issueVadim Zaliva
When reading data from Geyser 2 touchpads used on post Oct 2005 Apple PowerBooks the driver was casting X and Y coordinates values to 'signed char'. Testing on one of such PowerBooks I have noticed that touchpad always generates positive values, but some of them are greater that 127, and thus, when cast to 'signed char' being interpreted as a negative. Such bigger values have been observed infrequently, closer to the edges of a touchpad, so the problem was not very visible. Nevertheless, the patch would potentially improve touchpad driver accuracy. Signed-off-by: Vadim Zaliva <lord@crocodile.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-03-10powerpc/52xx: update defconfigsGrant Likely
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-03-10Merge branch 'wireless-2.6' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6
2010-03-10mac80211: Fix memory leak in ieee80211_if_write()Eric Dumazet
Fix memory leak and use kmalloc() instead of kzalloc() as we are going to overwrite the allocated buffer. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10mac80211: Fix (dynamic) power save entryJuuso Oikarinen
Currently hardware with !IEEE80211_HW_PS_NULLFUNC_STACK and IEEE80211_HW_REPORTS_TX_ACK_STATUS will never enter PSM due to the conditions in the power save entry functions. Fix those conditions. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10ipw2200: use kmalloc for large local variablesZhu Yi
Fixed below compiler warning: drivers/net/wireless/ipw2x00/ipw2200.c: In function ‘ipw_load_firmware’: drivers/net/wireless/ipw2x00/ipw2200.c:3260: warning: the frame size of 1168 bytes is larger than 1024 bytes Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10spi/omap2_mcspi: Use transaction speed if providedScott Ellis
omap2_mcspi_transfer() gets called in omap2_mcspi_work() when the transaction speed_hz or bits_per_word fields are non-zero. omap2_mcspi_transfer() does not look at the speed_hz field so the override speed value is ignored. The code should probably change to one of these options. 1. Skip the call to omap2_mcsp_transfer() if the only reason was a non-zero speed_hz and it's not going to be used. 2. Use the new speed_hz value provided The patch below uses the speed_hz value. Signed-off-by: Scott Ellis <scott@jumpnowtek.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-03-10spi/omap2_mcspi: fix NULL pointer dereferenceScott Ellis
Check spi->controller_state before dereferencing. Shows up NULL here when using spi_alloc_device()/spi_add_device() and spi_add_device() fails before spi_setup(). Calling spi_dev_put() on the leftover spi_device results in the error. Signed-off-by: Scott Ellis <scott@jumpnowtek.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-03-10ath5k: read eeprom IQ calibration values correctly for G modeBruno Randolf
we read the IQ correction values (i_cal and q_cal) for G mode from a wrong location (the same shifts as for A mode is applied which is incorrect). use correct locations, matching the docs and HAL sources. also we should write IQ correction only when we have that information in the EEPROM, starting from version 4. also write it in the same way as we do in the periodic recalibration (enable last), just to be sure. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10ath5k: fix I/Q calibration (for real)Bruno Randolf
I/Q calibration was completely broken, resulting in a high number of CRC errors on received packets. before i could see around 10% to 20% CRC errors, with this patch they are between 0% and 3%. 1.) the removal of the mask in commit "ath5k: Fix I/Q calibration (f1cf2dbd0f798b71b1590e7aca6647f2caef1649)" resulted in no mask beeing used when writing the I/Q values into the register. additional errors in the calculation of the values (see 2.) resulted too high numbers, exceeding the masks, so wrong values like 0xfffffffe were written. to be safe we should always use the bitmask when writing parts of a register. 2.) using a (s32) cast for q_coff is a wrong conversion to signed, since we convert to a signed value later by substracting 128. this resulted in too low numbers for Q many times, which were limited to -16 by the boundary check later on. 3.) checked everything against the HAL sources and took over comments and minor optimizations from there. 4.) we can't use ENABLE_BITS when we want to write a number (the number can contain zeros). also always write the correction values first and set ENABLE bit last, like the HAL does. Signed-off-by: Bruno Randolf <br1@einfach.org> Cc: stable@kernel.org Acked-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10ath5k: fix TSF resetBruno Randolf
to reset the TSF, AR5K_BEACON_RESET_TSF has to be 1, not 0. also we have a function for that so use it. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10ath5k: use fixed antenna for tx descriptorsBruno Randolf
when using a fixed antenna we should use the antenna number in all tx descriptors, otherwise the hardware will sometimes send the frame out on the other antenna. it seems like the hardware does not always respect the default antenna and diversity settings (esp. AR5K_STA_ID1_DEFAULT_ANTENNA). also i would like to note that antenna diversity does not always work correctly on 5414 (at least) when only one antenna is connected: for example all frames might be received on antenna A but still the HW tries to send on antenna B some times, causing packet loss. this is both verified with the antenna statistics output of the previous patch and a spectrum analyzer. Signed-off-by: Bruno Randolf <br1@einfach.org> Acked-by: Nick Kossifidis <mickflemm@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10libipw: split ieee->networks into small piecesZhu Yi
The ieee->networks consists of 128 struct libipw_network entries. If we allocate this chunk of memory altogether, it ends up with an order 4 page allocation. High order page allocation is likely to fail on system high load. This patch splits the big chunk memory allocation into small pieces, each is 344 bytes, allocates them with 128 times. The patch fixed bug http://bugzilla.kernel.org/show_bug.cgi?id=14989 Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10mac80211: Fix sta_mtx unlocking on insert STA failure pathJouni Malinen
Commit 34e895075e21be3e21e71d6317440d1ee7969ad0 introduced sta_mtx locking into sta_info_insert() (now sta_info_insert_rcu), but forgot to unlock this mutex on one of the error paths. Fix this by adding the missing mutex_unlock() call for the case where STA insert fails due to an entry existing already. This may happen at least in AP mode when a STA roams between two BSSes (vifs). Signed-off-by: Jouni Malinen <j@w1.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10rt2x00: remove KSEG1ADDR define from rt2x00soc.hHelmut Schaa
Remove the KSEG1ADDR define from rt2x00soc.h as it redefines and covers the correct one from the arch/mips/include/asm/addrspace.h. Otherwise the driver oopses on the target platform (Ralink rt3050 board). Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-03-10uartlite: Fix build on sparc.David Miller
We can get this driver enabled via MFD_TIMBERDALE which only requires GPIO to be on. But the of_address_to_resource() function is only present on powerpc and microblaze, so we have to conditionalize the CONFIG_OF probing bits on that. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-03-10NFSv4: Don't ignore the NFS_INO_REVAL_FORCED flag in nfs_revalidate_inode()Trond Myklebust
If the NFS_INO_REVAL_FORCED flag is set, that means that we don't yet have an up to date attribute cache. Even if we hold a delegation, we must put a GETATTR on the wire. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org
2010-03-10net: add ColdFire support to the smc91x driverGreg Ungerer
Some embedded ColdFire based boards use the SMC 91x family of ethernet devices. (For example the Freescale M5249C3 and MoretonBay NETtel). Add IO access support to the SMC91x driver, and allow this driver to be configured for ColdFire platforms. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10asix: fix setting mac address for AX88772Jussi Kivilinna
Setting new MAC address only worked when device was set to promiscuous mode. Fix MAC address by writing new address to device using undocumented command AX_CMD_READ_NODE_ID+1. Patch is tested with AX88772 device. Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Acked-by: David Hollis <dhollis@davehollis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10ipv6 ip6_tunnel: eliminate unused recursion field from ip6_tnl{}.YOSHIFUJI Hideaki / 吉藤英明
Commit a43912ab19... ("tunnel: eliminate recursion field") eliminated use of recursion field from tunnel structures, but its definition still exists in ip6_tnl{}. Let's remove that unused field. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10net: Fix dev_mc_add()Eric Dumazet
Commit 6e17d45a (net: add addr len check to dev_mc_add) added a bug in dev_mc_add(), since it can now exit with a lock imbalance. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10net: Annotates neigh_invalidate()Eric Dumazet
Annotates neigh_invalidate() with __releases() and __acquires() for sparse sake. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10tcp: Fix tcp_v4_rcv()Eric Dumazet
Commit d218d111 (tcp: Generalized TTL Security Mechanism) added a bug for TIMEWAIT sockets. We should not test min_ttl for TW sockets. Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10tg3: Fix tg3_poll_controller() passing wrong pointer to tg3_interrupt()Louis Rilling
Commit 09943a1819a240ff4a72f924d0038818fcdd0a90 Author: Matt Carlson <mcarlson@broadcom.com> Date: Fri Aug 28 14:01:57 2009 +0000 tg3: Convert ISR parameter to tnapi forgot to update tg3_poll_controller(), leading to intermittent crashes with netpoll. Fix this. Signed-off-by: Louis Rilling <louis.rilling@kerlabs.com> Cc: stable@kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10qeth: change checksumming default for HiperSocketsFrank Blaschka
Deactivate inbound checksumming on HiperSocket is a valid but dangerous optimization in case the frame is routed from an OSA network to an HiperSockets network. To go for sure we change the default to software checksumming. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10qeth: no recovery after layer mismatch (z/VM NICs)Ursula Braun
Depending on their definition in z/VM, virtual devices for z/VM VSWITCH or GuestLAN must be configured either in layer2 or in layer3 mode. If qeth detects a layer mismatch, device activation fails. Trying to recover from this error cannot help; thus scheduling a recovery should be avoided. In addition, since recovery is forbidden during online setting of a qeth device, existence of its network device is guaranteed for all dev_close() calls in qeth. The corresponding checks can be removed. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10qeth: set promisc off after trace disabling failureUrsula Braun
If HiperSockets Network Traffic Analyzer is switched off, but trace disabling fails somehow, the qeth driver does not switch off its promisc mode status. A following sniffer reactivation fails, since qeth does not see a need to reenable tracing. At the same time the code analyzing results of trace commands is restructured. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10qeth: l3 send dhcp in non pass thru modeFrank Blaschka
dhcp frames are valid IPv4 packets so there is no need to send them in pass thru mode. This allows dhcp packets to pass HiperSockets. Also the dhcp release frame is send out correctly with this patch. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-03-10qeth: enable kmsg hash processing in qeth_core_sys.cUrsula Braun
provide qeth kmsg definitions to enable hash string generation for kernel message created with dev_err(). Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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