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2012-09-19net/core: fix comment in skb_try_coalesceLi RongQing
It should be the skb which is not cloned Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19ipv6: unify fragment thresh handling codeAmerigo Wang
Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Michal Kubeček <mkubecek@suse.cz> Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19ipv6: make ip6_frag_nqueues() and ip6_frag_mem() static inlineAmerigo Wang
Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Michal Kubeček <mkubecek@suse.cz> Cc: David Miller <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19ipv6: unify conntrack reassembly expire code with standard oneAmerigo Wang
Two years ago, Shan Wei tried to fix this: http://patchwork.ozlabs.org/patch/43905/ The problem is that RFC2460 requires an ICMP Time Exceeded -- Fragment Reassembly Time Exceeded message should be sent to the source of that fragment, if the defragmentation times out. " If insufficient fragments are received to complete reassembly of a packet within 60 seconds of the reception of the first-arriving fragment of that packet, reassembly of that packet must be abandoned and all the fragments that have been received for that packet must be discarded. If the first fragment (i.e., the one with a Fragment Offset of zero) has been received, an ICMP Time Exceeded -- Fragment Reassembly Time Exceeded message should be sent to the source of that fragment. " As Herbert suggested, we could actually use the standard IPv6 reassembly code which follows RFC2460. With this patch applied, I can see ICMP Time Exceeded sent from the receiver when the sender sent out 3/4 fragmented IPv6 UDP packet. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Michal Kubeček <mkubecek@suse.cz> Cc: David Miller <davem@davemloft.net> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: Patrick McHardy <kaber@trash.net> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: netfilter-devel@vger.kernel.org Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19ipv6: add a new namespace for nf_conntrack_reasmAmerigo Wang
As pointed by Michal, it is necessary to add a new namespace for nf_conntrack_reasm code, this prepares for the second patch. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Michal Kubeček <mkubecek@suse.cz> Cc: David Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: netfilter-devel@vger.kernel.org Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19asix: Support DLink DUB-E100 H/W Ver C1Søren holm
Signed-off-by: Søren Holm <sgh@sgh.dk> Cc: stable@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19netpoll: call ->ndo_select_queue() in tx pathAmerigo Wang
In netpoll tx path, we miss the chance of calling ->ndo_select_queue(), thus could cause problems when bonding is involved. This patch makes dev_pick_tx() extern (and rename it to netdev_pick_tx()) to let netpoll call it in netpoll_send_skb_on_dev(). Reported-by: Sylvain Munaut <s.munaut@whatever-company.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Cong Wang <amwang@redhat.com> Tested-by: Sylvain Munaut <s.munaut@whatever-company.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19Merge branch 'clkdev' into fixesRussell King
2012-09-19ARM: 7535/1: Reprogram smp_twd based on new common clk framework notifiersMike Turquette
Running cpufreq driver on imx6q, the following warning is seen. $ BUG: sleeping function called from invalid context at kernel/mutex.c:269 <snip> stack backtrace: Backtrace: [<80011d64>] (dump_backtrace+0x0/0x10c) from [<803fc164>] (dump_stack+0x18/0x1c) r6:bf8142e0 r5:bf814000 r4:806ac794 r3:bf814000 [<803fc14c>] (dump_stack+0x0/0x1c) from [<803fd444>] (print_usage_bug+0x250/0x2b 8) [<803fd1f4>] (print_usage_bug+0x0/0x2b8) from [<80060f90>] (mark_lock+0x56c/0x67 0) [<80060a24>] (mark_lock+0x0/0x670) from [<80061a20>] (__lock_acquire+0x98c/0x19b 4) [<80061094>] (__lock_acquire+0x0/0x19b4) from [<80062f14>] (lock_acquire+0x68/0x 7c) [<80062eac>] (lock_acquire+0x0/0x7c) from [<80400f28>] (mutex_lock_nested+0x78/0 x344) r7:00000000 r6:bf872000 r5:805cc858 r4:805c2a04 [<80400eb0>] (mutex_lock_nested+0x0/0x344) from [<803089ac>] (clk_get_rate+0x1c/ 0x58) [<80308990>] (clk_get_rate+0x0/0x58) from [<80013c48>] (twd_update_frequency+0x1 8/0x50) r5:bf253d04 r4:805cadf4 [<80013c30>] (twd_update_frequency+0x0/0x50) from [<80068e20>] (generic_smp_call _function_single_interrupt+0xd4/0x13c) r4:bf873ee0 r3:80013c30 [<80068d4c>] (generic_smp_call_function_single_interrupt+0x0/0x13c) from [<80013 34c>] (handle_IPI+0xc0/0x194) r8:00000001 r7:00000000 r6:80574e48 r5:bf872000 r4:80593958 [<8001328c>] (handle_IPI+0x0/0x194) from [<800084e8>] (gic_handle_irq+0x58/0x60) r8:00000000 r7:bf873f8c r6:bf873f58 r5:80593070 r4:f4000100 r3:00000005 [<80008490>] (gic_handle_irq+0x0/0x60) from [<8000e124>] (__irq_svc+0x44/0x60) Exception stack(0xbf873f58 to 0xbf873fa0) 3f40: 00000001 00000001 3f60: 00000000 bf814000 bf872000 805cab48 80405aa4 80597648 00000000 412fc09a 3f80: bf872000 bf873fac bf873f70 bf873fa0 80063844 8000f1f8 20000013 ffffffff r6:ffffffff r5:20000013 r4:8000f1f8 r3:bf814000 [<8000f1b8>] (default_idle+0x0/0x4c) from [<8000f428>] (cpu_idle+0x98/0x114) [<8000f390>] (cpu_idle+0x0/0x114) from [<803f9834>] (secondary_start_kernel+0x11 c/0x140) [<803f9718>] (secondary_start_kernel+0x0/0x140) from [<103f9234>] (0x103f9234) r6:10c03c7d r5:0000001f r4:4f86806a r3:803f921c It looks that the warning is caused by that twd_update_frequency() gets called from an atomic context while it calls clk_get_rate() where a mutex gets held. To fix the warning, let's convert common clk users over to clk notifiers in place of CPUfreq notifiers. This works out nicely for Cortex-A9 MPcore designs that scale all CPUs at the same frequency. Platforms that have not been converted to the common clk framework and support CPUfreq will rely on the old mechanism. Once these platforms are converted over fully then we can remove the CPUfreq-specific bits for good. Signed-off-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-19ARM: 7537/1: clk: Fix release in devm_clk_put()Mark Brown
Surprisingly devres_destroy() doesn't call the destructor for the resource it is destroying, use the newly added devres_release() instead to fix this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-09-19netdev: make address const in device address managementstephen hemminger
The internal functions for add/deleting addresses don't change their argument. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19pkt_sched: fix virtual-start-time update in QFQPaolo Valente
If the old timestamps of a class, say cl, are stale when the class becomes active, then QFQ may assign to cl a much higher start time than the maximum value allowed. This may happen when QFQ assigns to the start time of cl the finish time of a group whose classes are characterized by a higher value of the ratio max_class_pkt/weight_of_the_class with respect to that of cl. Inserting a class with a too high start time into the bucket list corrupts the data structure and may eventually lead to crashes. This patch limits the maximum start time assigned to a class. Signed-off-by: Paolo Valente <paolo.valente@unimore.it> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19tcp: flush DMA queue before sk_wait_data if rcv_wnd is zeroMichal Kubeček
If recv() syscall is called for a TCP socket so that - IOAT DMA is used - MSG_WAITALL flag is used - requested length is bigger than sk_rcvbuf - enough data has already arrived to bring rcv_wnd to zero then when tcp_recvmsg() gets to calling sk_wait_data(), receive window can be still zero while sk_async_wait_queue exhausts enough space to keep it zero. As this queue isn't cleaned until the tcp_service_net_dma() call, sk_wait_data() cannot receive any data and blocks forever. If zero receive window and non-empty sk_async_wait_queue is detected before calling sk_wait_data(), process the queue first. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19batman-adv: make batadv_test_bit() return 0 or 1 onlyLinus Lüssing
On some architectures test_bit() can return other values than 0 or 1: With a generic x86 OpenWrt image in a kvm setup (batadv_)test_bit() frequently returns -1 for me, leading to batadv_iv_ogm_update_seqnos() wrongly signaling a protected seqno window. This patch tries to fix this issue by making batadv_test_bit() return 0 or 1 only. Signed-off-by: Linus Lüssing <linus.luessing@web.de> Acked-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19i825xx: znet: fix compiler warnings when building a 64-bit kernelMika Westerberg
When building 64-bit kernel with this driver we get following warnings from the compiler: drivers/net/ethernet/i825xx/znet.c: In function ‘hardware_init’: drivers/net/ethernet/i825xx/znet.c:863:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] drivers/net/ethernet/i825xx/znet.c:870:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] Fix these by calling isa_virt_to_bus() before passing the pointers to set_dma_addr(). Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19gre: add GSO supportEric Dumazet
Add GSO support to GRE tunnels. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19net: provide a default dev->ethtool_opsEric Dumazet
Instead of forcing device drivers to provide empty ethtool_ops or tweak net/core/ethtool.c again, we could provide a generic ethtool_ops. This occurred to me when I wanted to add GSO support to GRE tunnels. ethtool -k support should be generic for all drivers. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Maciej Żenczykowski <maze@google.com> Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19net: dev: fix incorrect getting net device's nameGao feng
When moving a nic from net namespace A to net namespace B, in dev_change_net_namesapce,we call __dev_get_by_name to decide if the netns B has the device has the same name. if the netns B already has the same named device,we call dev_get_valid_name to try to get a valid name for this nic in the netns B,but net_device->nd_net still point to netns A now. this patch fix it. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19ipv6: recursive check rt->dst.from when call rt6_check_expiredLi RongQing
If dst cache dst_a copies from dst_b, and dst_b copies from dst_c, check if dst_a is expired or not, we should not end with dst_a->dst.from, dst_b, we should check dst_c. CC: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19net: more accurate network taps in transmit pathEric Dumazet
dev_queue_xmit_nit() should be called right before ndo_start_xmit() calls or we might give wrong packet contents to taps users : Packet checksum can be changed, or packet can be linearized or segmented, and segments partially sent for the later case. Also a memory allocation can fail and packet never really hit the driver entry point. Reported-by: Jamie Gloudon <jamie.gloudon@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-09-19xen/boot: Disable BIOS SMP MP table search.Konrad Rzeszutek Wilk
As the initial domain we are able to search/map certain regions of memory to harvest configuration data. For all low-level we use ACPI tables - for interrupts we use exclusively ACPI _PRT (so DSDT) and MADT for INT_SRC_OVR. The SMP MP table is not used at all. As a matter of fact we do not even support machines that only have SMP MP but no ACPI tables. Lets follow how Moorestown does it and just disable searching for BIOS SMP tables. This also fixes an issue on HP Proliant BL680c G5 and DL380 G6: 9f->100 for 1:1 PTE Freeing 9f-100 pfn range: 97 pages freed 1-1 mapping on 9f->100 .. snip.. e820: BIOS-provided physical RAM map: Xen: [mem 0x0000000000000000-0x000000000009efff] usable Xen: [mem 0x000000000009f400-0x00000000000fffff] reserved Xen: [mem 0x0000000000100000-0x00000000cfd1dfff] usable .. snip.. Scan for SMP in [mem 0x00000000-0x000003ff] Scan for SMP in [mem 0x0009fc00-0x0009ffff] Scan for SMP in [mem 0x000f0000-0x000fffff] found SMP MP-table at [mem 0x000f4fa0-0x000f4faf] mapped at [ffff8800000f4fa0] (XEN) mm.c:908:d0 Error getting mfn 100 (pfn 5555555555555555) from L1 entry 0000000000100461 for l1e_owner=0, pg_owner=0 (XEN) mm.c:4995:d0 ptwr_emulate: could not get_page_from_l1e() BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff81ac07e2>] xen_set_pte_init+0x66/0x71 . snip.. Pid: 0, comm: swapper Not tainted 3.6.0-rc6upstream-00188-gb6fb969-dirty #2 HP ProLiant BL680c G5 .. snip.. Call Trace: [<ffffffff81ad31c6>] __early_ioremap+0x18a/0x248 [<ffffffff81624731>] ? printk+0x48/0x4a [<ffffffff81ad32ac>] early_ioremap+0x13/0x15 [<ffffffff81acc140>] get_mpc_size+0x2f/0x67 [<ffffffff81acc284>] smp_scan_config+0x10c/0x136 [<ffffffff81acc2e4>] default_find_smp_config+0x36/0x5a [<ffffffff81ac3085>] setup_arch+0x5b3/0xb5b [<ffffffff81624731>] ? printk+0x48/0x4a [<ffffffff81abca7f>] start_kernel+0x90/0x390 [<ffffffff81abc356>] x86_64_start_reservations+0x131/0x136 [<ffffffff81abfa83>] xen_start_kernel+0x65f/0x661 (XEN) Domain 0 crashed: 'noreboot' set - not rebooting. which is that ioremap would end up mapping 0xff using _PAGE_IOMAP (which is what early_ioremap sticks as a flag) - which meant we would get MFN 0xFF (pte ff461, which is OK), and then it would also map 0x100 (b/c ioremap tries to get page aligned request, and it was trying to map 0xf4fa0 + PAGE_SIZE - so it mapped the next page) as _PAGE_IOMAP. Since 0x100 is actually a RAM page, and the _PAGE_IOMAP bypasses the P2M lookup we would happily set the PTE to 1000461. Xen would deny the request since we do not have access to the Machine Frame Number (MFN) of 0x100. The P2M[0x100] is for example 0x80140. CC: stable@vger.kernel.org Fixes-Oracle-Bugzilla: https://bugzilla.oracle.com/bugzilla/show_bug.cgi?id=13665 Acked-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-09-19Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A small collection of driver fixes/updates and a core fix for 3.6. It contains: - Bug fixes for mtip32xx, and support for new hardware (just addition of IDs). They have been queued up for 3.7 for a few weeks as well. - rate-limit a failing command error message in block core. - A fix for an old cciss bug from Stephen. - Prevent overflow of partition count from Alan." * 'for-linus' of git://git.kernel.dk/linux-block: cciss: fix handling of protocol error blk: add an upper sanity check on partition adding mtip32xx: fix user_buffer check in exec_drive_command mtip32xx: Remove dead code mtip32xx: Change printk to pr_xxxx mtip32xx: Proper reporting of write protect status on big-endian mtip32xx: Increase timeout for standby command mtip32xx: Handle NCQ commands during the security locked state mtip32xx: Add support for new devices block: rate-limit the error message from failing commands
2012-09-19Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds
Pull SuperH fixes from Paul Mundt. * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: sh: Fix up TIF_NOTIFY_RESUME sans TIF_SIGPENDING handling. sh: pfc: Release spinlock in sh_pfc_gpio_request_enable() error path sh: intc: Fix up multi-evt irq association.
2012-09-19Merge tag 'rpmsg-3.6-fix' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg Pull rpmsg fix from Ohad Ben-Cohen: "A quick rpmsg fix from Fernando, fixing two buggy invocations of dma_free_coherent" * tag 'rpmsg-3.6-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg: rpmsg: fix dma_free_coherent dev parameter
2012-09-19Merge tag 'md-3.6-fixes' of git://neil.brown.name/mdLinus Torvalds
Pull md fixes from NeilBrown: "3 fixes for md in 3.6. One reverts a recent patch which turns out to not be such a good idea. Other two fix minor bugs with the new (since 3.3) 'replacement' code and have been tagged for -stable." * tag 'md-3.6-fixes' of git://neil.brown.name/md: md: make sure metadata is updated when spares are activated or removed. md/raid5: fix calculate of 'degraded' when a replacement becomes active. Revert "md/raid5: For odirect-write performance, do not set STRIPE_PREREAD_ACTIVE."
2012-09-19Merge branch 'for-3.6-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue / powernow-k8 fix from Tejun Heo: "This is the fix for the bug where cpufreq/powernow-k8 was tripping BUG_ON() in try_to_wake_up_local() by migrating workqueue worker to a different CPU. https://bugzilla.kernel.org/show_bug.cgi?id=47301 As discussed, the fix is now two parts - one to reimplement work_on_cpu() so that it doesn't create a new kthread each time and the actual fix which makes powernow-k8 use work_on_cpu() instead of performing manual migration. While pretty late in the merge cycle, both changes are on the safer side. Jiri and I verified two existing users of work_on_cpu() and Duncan confirmed that the powernow-k8 fix survived about 18 hours of testing." * 'for-3.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: cpufreq/powernow-k8: workqueue user shouldn't migrate the kworker to another CPU workqueue: reimplement work_on_cpu() using system_wq
2012-09-19Revert "input: ab8500-ponkey: Create AB8500 domain IRQ mapping"Dmitry Torokhov
This reverts commit ca3b3faf9bee4dc5df4f10eae2d1e48f7de0a8ad. There was a plan to place ab8500_irq_get_virq() calls in each AB8500 child device prior to requesting an IRQ, but as we're no longer using Device Tree to collect our IRQ numbers, it's actually better to allow the core to do this during device registration time. So the IRQ number we pull from its resource has already been converted to a virtual IRQ. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-09-19Merge tag 'v3.6-rc5' into for-linusDmitry Torokhov
Sync with mainline so that I can revert an input patch that came in through another subsystem tree.
2012-09-19cpufreq/powernow-k8: workqueue user shouldn't migrate the kworker to another CPUTejun Heo
powernowk8_target() runs off a per-cpu work item and if the cpufreq_policy->cpu is different from the current one, it migrates the kworker to the target CPU by manipulating current->cpus_allowed. The function migrates the kworker back to the original CPU but this is still broken. Workqueue concurrency management requires the kworkers to stay on the same CPU and powernowk8_target() ends up triggerring BUG_ON(rq != this_rq()) in try_to_wake_up_local() if it contends on fidvid_mutex and sleeps. It is unclear why this bug is being reported now. Duncan says it appeared to be a regression of 3.6-rc1 and couldn't reproduce it on 3.5. Bisection seemed to point to 63d95a91 "workqueue: use @pool instead of @gcwq or @cpu where applicable" which is an non-functional change. Given that the reproduce case sometimes took upto days to trigger, it's easy to be misled while bisecting. Maybe something made contention on fidvid_mutex more likely? I don't know. This patch fixes the bug by using work_on_cpu() instead if @pol->cpu isn't the same as the current one. The code assumes that cpufreq_policy->cpu is kept online by the caller, which Rafael tells me is the case. stable: ed48ece27c ("workqueue: reimplement work_on_cpu() using system_wq") should be applied before this; otherwise, the behavior could be horrible. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Duncan <1i5t5.duncan@cox.net> Tested-by: Duncan <1i5t5.duncan@cox.net> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: stable@vger.kernel.org Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47301
2012-09-19workqueue: reimplement work_on_cpu() using system_wqTejun Heo
The existing work_on_cpu() implementation is hugely inefficient. It creates a new kthread, execute that single function and then let the kthread die on each invocation. Now that system_wq can handle concurrent executions, there's no advantage of doing this. Reimplement work_on_cpu() using system_wq which makes it simpler and way more efficient. stable: While this isn't a fix in itself, it's needed to fix a workqueue related bug in cpufreq/powernow-k8. AFAICS, this shouldn't break other existing users. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Jiri Kosina <jkosina@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Len Brown <lenb@kernel.org> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: stable@vger.kernel.org
2012-09-19perf/x86: Fix Intel Ivy Bridge supportStephane Eranian
This patch updates the existing Intel IvyBridge (model 58) support with proper PEBS event constraints. It cannot reuse the same as SandyBridge because some events (0xd3) are specific to IvyBridge. Also there is no UOPS_DISPATCHED.THREAD on IVB, so do not populate the PERF_COUNT_HW_STALLED_CYCLES_BACKEND mapping. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: peterz@infradead.org Cc: ak@linux.intel.com Link: http://lkml.kernel.org/r/20120910230701.GA5898@quad Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-09-19linux/kernel.h: Fix warning seen with W=1 due to change in DIV_ROUND_CLOSESTGuenter Roeck
After commit b6d86d3d (Fix DIV_ROUND_CLOSEST to support negative dividends), the following warning is seen if the kernel is compiled with W=1 (-Wextra): warning: comparison of unsigned expression >= 0 is always true The warning is due to the test '((typeof(x))-1) >= 0', which is used to detect if the variable type is unsigned. Research on the web suggests that the warning disappears if '>' instead of '>=' is used for the comparison. Tests after changing the macro along that line show that the warning is gone, and that the result is still correct: i=-4: DIV_ROUND_CLOSEST(i, 2)=-2 i=-3: DIV_ROUND_CLOSEST(i, 2)=-2 i=-2: DIV_ROUND_CLOSEST(i, 2)=-1 i=-1: DIV_ROUND_CLOSEST(i, 2)=-1 i=0: DIV_ROUND_CLOSEST(i, 2)=0 i=1: DIV_ROUND_CLOSEST(i, 2)=1 i=2: DIV_ROUND_CLOSEST(i, 2)=1 i=3: DIV_ROUND_CLOSEST(i, 2)=2 i=4: DIV_ROUND_CLOSEST(i, 2)=2 Code size is the same as before. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Jean Delvare <khali@linux-fr.org>
2012-09-19iwlwifi: use eth_broadcast_addrJohannes Berg
Instead of memcpy() from a static array, just use the new helper function eth_broadcast_addr(). Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-19cfg80211: constify name parameter to add_virtual_intfJohannes Berg
The name can't be modified by the driver, make it const. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-19mac80211: make reset debugfs depend on CONFIG_PMJohannes Berg
The suspend/resume code depends on CONFIG_PM, so the reset debugfs file can only be made available if that is enabled. Fengguang Wu's zero-day build testing found this. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-19md: make sure metadata is updated when spares are activated or removed.NeilBrown
It isn't always necessary to update the metadata when spares are removed as the presence-or-not of a spare isn't really important to the integrity of an array. Also activating a spare doesn't always require updating the metadata as the update on 'recovery-completed' is usually sufficient. However the introduction of 'replacement' devices have made these transitions sometimes more important. For example the 'Replacement' flag isn't cleared until the original device is removed, so we need to ensure a metadata update after that 'spare' is removed. So set MD_CHANGE_DEVS whenever a spare is activated or removed, to complement the current situation where it is set when a spare is added or a device is failed (or a number of other less common situations). This is suitable for -stable as out-of-data metadata could lead to data corruption. This is only relevant for 3.3 and later 9when 'replacement' as introduced. Cc: stable@vger.kernel.org Signed-off-by: NeilBrown <neilb@suse.de>
2012-09-19md/raid5: fix calculate of 'degraded' when a replacement becomes active.NeilBrown
When a replacement device becomes active, we mark the device that it replaces as 'faulty' so that it can subsequently get removed. However 'calc_degraded' only pays attention to the primary device, not the replacement, so the array appears to become degraded, which is wrong. So teach 'calc_degraded' to consider any replacement if a primary device is faulty. This is suitable for -stable as an incorrect 'degraded' value can confuse md and could lead to data corruption. This is only relevant for 3.3 and later. Cc: stable@vger.kernel.org Reported-by: Robin Hill <robin@robinhill.me.uk> Reported-by: John Drescher <drescherjm@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
2012-09-19Revert "md/raid5: For odirect-write performance, do not set ↵NeilBrown
STRIPE_PREREAD_ACTIVE." This reverts commit 895e3c5c58a80bb9e4e05d9ac38b4f30e0f97d80. While this patch seemed like a good idea and did help some workloads, it hurts other workloads. Large sequential O_DIRECT writes were faster, Small random O_DIRECT writes were slower. Other changes (batching RAID5 writes) have improved the sequential writes using a different mechanism, so the net result of this patch is definitely negative. So revert it. Reported-by: Shaohua Li <shli@kernel.org> Tested-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
2012-09-19sfc: Avoid generating over-length MC_CMD_FLUSH_RX_QUEUES requestBen Hutchings
MCDI supports requests up to 252 bytes long, which is only enough to pass 63 RX queue IDs to MC_CMD_FLUSH_RX_QUEUES. However a VF may have up to 64 RX queues, and if we try to flush them all we will generate an over-length request and BUG() in efx_mcdi_copyin(). Currently all VF drivers limit themselves to 32 RX queues, so reducing the limit to 63 does no harm. Also add a BUILD_BUG_ON in efx_mcdi_flush_rxqs() so we remember to deal with the same problem there if EFX_MAX_CHANNELS is increased. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-09-19sfc: Bump version to 3.2Ben Hutchings
The key new feature for 3.2 is PTP support. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-09-19sfc: Expose FPGA bitfile partition through MTDBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-09-19sfc: Support variable-length response to MCDI GET_BOARD_CFGBen Hutchings
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-09-19sfc: Convert firmware subtypes to native byte order in efx_mcdi_get_board_cfg()Ben Hutchings
On big-endian systems the MTD partition names currently have mangled subtype numbers and are not recognised by the firmware update tool (sfupdate). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-09-19sfc: Add support for IEEE-1588 PTPStuart Hodgson
Add PTP IEEE-1588 support and make accesible via the PHC subsystem. This work is based on prior code by Andrew Jackson Signed-off-by: Stuart Hodgson <smhodgson@solarflare.com> [bwh: - Add byte order conversion in efx_ptp_send_times() - Simplify conversion of PPS event times - Add the built-in vs module check to CONFIG_SFC_PTP dependencies] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-09-19sfc: Fix maximum array sizes for various MCDI commandsBen Hutchings
The maximum array sizes have been calculated on the basis of a maximum SDU size of 255 bytes, whereas the actual maximum is 252 bytes. Constructing a larger SDU will result in a BUG_ON in efx_mcdi_copyin. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2012-09-18Bluetooth: Add support for BCM20702A0 [04ca, 2003]Jaroslav Resler
Add another vendor specific ID for BCM20702A0. output of usb-devices: T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=02 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=04ca ProdID=2003 Rev= 1.12 S: Manufacturer=Broadcom Corp S: Product=BCM20702A0 S: SerialNumber=446D57861623 C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr= 0mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none) E: Ad=84(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none) Signed-off-by: Cho, Yu-Chen <acho@suse.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-09-18Bluetooth: Add USB_VENDOR_AND_INTERFACE_INFO() for Broadcom/FoxconnGustavo Padovan
Foxconn devices has a vendor specific class of device, we will match them differently now. Cc: stable@vger.kernel.org Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-09-18Bluetooth: Update management interface revisionJohan Hedberg
For each kernel release where commands or events are added to the management interface, the revision field should be increment by one. The increment should only happen once per kernel release and not for every command/event that gets added. The revision value is for informational purposes only, but this simple policy would make any future debugging a lot simple. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Cc: stable@vger.kernel.org Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-09-18Bluetooth: mgmt: Implement support for passkey notificationJohan Hedberg
This patch adds support for Secure Simple Pairing with devices that have KeyboardOnly as their IO capability. Such devices will cause a passkey notification on our side and optionally also keypress notifications. Without this patch some keyboards cannot be paired using the mgmt interface. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com> Cc: stable@vger.kernel.org Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-09-18Bluetooth: btuart_cs.c: removes unnecessary semicolonPeter Senna Tschudin
removes unnecessary semicolon Found by Coccinelle: http://coccinelle.lip6.fr/ Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
generated by cgit (git 2.34.1) at 2025-10-01 13:15:55 +0000