- 20 4月, 2013 1 次提交
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由 Stephen Boyd 提交于
cyc_to_sched_clock() is called by sched_clock() and cyc_to_ns() is called by cyc_to_sched_clock(). I suspect that some compilers inline both of these functions into sched_clock() and so we've been getting away without having a notrace marking. It seems that my compiler isn't inlining cyc_to_sched_clock() though, so I'm hitting a recursion bug when I enable the function graph tracer, causing my system to crash. Marking these functions notrace fixes it. Technically cyc_to_ns() doesn't need the notrace because it's already marked inline, but let's just add it so that if we ever remove inline from that function it doesn't blow up. Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 17 4月, 2013 6 次提交
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由 Will Deacon 提交于
Events may be created with attr->disabled == 1 and attr->enable_on_exec == 1, which confuses the group validation code because events with the PERF_EVENT_STATE_OFF are not considered candidates for scheduling, which may lead to failure at group scheduling time. This patch fixes the validation check for ARM, so that events in the OFF state are still considered when enable_on_exec is true. Cc: stable@vger.kernel.org Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Jiri Olsa <jolsa@redhat.com> Reported-by: NSudeep KarkadaNagesha <Sudeep.KarkadaNagesha@arm.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Bastian Hecht 提交于
We must not declare dbg_cpu_pm_nb as __cpuinitdata as we need it after system initialization for Suspend and CPUIdle. This was done in commit 9a6eb310 ("ARM: hw_breakpoint: Debug powerdown support for self-hosted debug"). Cc: stable@vger.kernel.org Cc: Dietmar Eggemann <Dietmar.Eggemann@arm.com> Signed-off-by: NBastian Hecht <hechtb+renesas@gmail.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Illia Ragozin 提交于
On Feroceon the L2 cache becomes non-coherent with the CPU when the L1 caches are disabled. Thus the L2 needs to be invalidated after both L1 caches are disabled. On kexec before the starting the code for relocation the kernel, the L1 caches are disabled in cpu_froc_fin (cpu_v7_proc_fin for Feroceon), but after L2 cache is never invalidated, because inv_all is not set in cache-feroceon-l2.c. So kernel relocation and decompression may has (and usually has) errors. Setting the function enables L2 invalidation and fixes the issue. Cc: <stable@vger.kernel.org> Signed-off-by: NIllia Ragozin <illia.ragozin@grapecom.com> Acked-by: NJason Cooper <jason@lakedaemon.net> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Joonsoo Kim 提交于
tcm_init() call iotable_init() and it use early_alloc variants which do memblock allocation. Directly using memblock allocation after initializing bootmem should not permitted, because bootmem can't know where are additinally reserved. So move tcm_init() to a safe place before initalizing bootmem. (On the U300) Tested-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NJoonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Aaro Koskinen 提交于
Currently IOP3XX_PERIPHERAL_VIRT_BASE conflicts with PCI_IO_VIRT_BASE: address size PCI_IO_VIRT_BASE 0xfee00000 0x200000 IOP3XX_PERIPHERAL_VIRT_BASE 0xfeffe000 0x2000 Fix by moving IOP3XX_PERIPHERAL_VIRT_BASE below PCI_IO_VIRT_BASE. The patch fixes the following kernel panic with 3.9-rc1 on iop3xx boards: [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 3.9.0-rc1-iop32x (aaro@blackmetal) (gcc version 4.7.2 (GCC) ) #20 PREEMPT Tue Mar 5 16:44:36 EET 2013 [ 0.000000] bootconsole [earlycon0] enabled [ 0.000000] ------------[ cut here ]------------ [ 0.000000] kernel BUG at mm/vmalloc.c:1145! [ 0.000000] Internal error: Oops - BUG: 0 [#1] PREEMPT ARM [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 Not tainted (3.9.0-rc1-iop32x #20) [ 0.000000] PC is at vm_area_add_early+0x4c/0x88 [ 0.000000] LR is at add_static_vm_early+0x14/0x68 [ 0.000000] pc : [<c03e74a8>] lr : [<c03e1c40>] psr: 800000d3 [ 0.000000] sp : c03ffee4 ip : dfffdf88 fp : c03ffef4 [ 0.000000] r10: 00000002 r9 : 000000cf r8 : 00000653 [ 0.000000] r7 : c040eca8 r6 : c03e2408 r5 : dfffdf60 r4 : 00200000 [ 0.000000] r3 : dfffdfd8 r2 : feffe000 r1 : ff000000 r0 : dfffdf60 [ 0.000000] Flags: Nzcv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel [ 0.000000] Control: 0000397f Table: a0004000 DAC: 00000017 [ 0.000000] Process swapper (pid: 0, stack limit = 0xc03fe1b8) [ 0.000000] Stack: (0xc03ffee4 to 0xc0400000) [ 0.000000] fee0: 00200000 c03fff0c c03ffef8 c03e1c40 c03e7468 00200000 fee00000 [ 0.000000] ff00: c03fff2c c03fff10 c03e23e4 c03e1c38 feffe000 c0408ee4 ff000000 c0408f04 [ 0.000000] ff20: c03fff3c c03fff30 c03e2434 c03e23b4 c03fff84 c03fff40 c03e2c94 c03e2414 [ 0.000000] ff40: c03f8878 c03f6410 ffff0000 000bffff 00001000 00000008 c03fff84 c03f6410 [ 0.000000] ff60: c04227e8 c03fffd4 a0008000 c03f8878 69052e30 c02f96eb c03fffbc c03fff88 [ 0.000000] ff80: c03e044c c03e268c 00000000 0000397f c0385130 00000001 ffffffff c03f8874 [ 0.000000] ffa0: dfffffff a0004000 69052e30 a03f61a0 c03ffff4 c03fffc0 c03dd5cc c03e0184 [ 0.000000] ffc0: 00000000 00000000 00000000 00000000 00000000 c03f8878 0000397d c040601c [ 0.000000] ffe0: c03f8874 c0408674 00000000 c03ffff8 a0008040 c03dd558 00000000 00000000 [ 0.000000] Backtrace: [ 0.000000] [<c03e745c>] (vm_area_add_early+0x0/0x88) from [<c03e1c40>] (add_static_vm_early+0x14/0x68) Tested-by: NMikael Pettersson <mikpe@it.uu.se> Signed-off-by: NAaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 08 4月, 2013 8 次提交
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由 Russell King 提交于
Let's do the changes properly and fix the same problem everywhere, not just for one case. Cc: <stable@vger.kernel.org> # kernels containing 15e0d9e3 or equivalent Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
Pull KVM fix from Gleb Natapov: "Bugfix for the regression introduced by commit c300aa64" * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Allow cross page reads and writes from cached translations.
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip由 Linus Torvalds 提交于
Pull x86 fixes from Peter Anvin: "Two quite small fixes: one a build problem, and the other fixes seccomp filters on x32." * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Fix rebuild with EFI_STUB enabled x86: remove the x32 syscall bitmask from syscall_get_nr()
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由 Will Deacon 提交于
Interrupt handlers are always invoked with interrupts disabled, so remove all uses of the deprecated IRQF_DISABLED flag. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Reviewed-by: NMatt Turner <mattst88@gmail.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NMichael Cree <mcree@orcon.net.nz> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Will Deacon 提交于
Linux has expected that interrupt handlers are executed with local interrupts disabled for a while now, so ensure that this is the case on Alpha even for non-device interrupts such as IPIs. Without this patch, secondary boot results in the following backtrace: warning: at kernel/softirq.c:139 __local_bh_enable+0xb8/0xd0() trace: __local_bh_enable+0xb8/0xd0 irq_enter+0x74/0xa0 scheduler_ipi+0x50/0x100 handle_ipi+0x84/0x260 do_entint+0x1ac/0x2e0 irq_exit+0x60/0xa0 handle_irq+0x98/0x100 do_entint+0x2c8/0x2e0 ret_from_sys_call+0x0/0x10 load_balance+0x3e4/0x870 cpu_idle+0x24/0x80 rcu_eqs_enter_common.isra.38+0x0/0x120 cpu_idle+0x40/0x80 rest_init+0xc0/0xe0 _stext+0x1c/0x20 A similar dump occurs if you try to reboot using magic-sysrq. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Reviewed-by: NMatt Turner <mattst88@gmail.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NMichael Cree <mcree@orcon.net.nz> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Will Deacon 提交于
Due to all of the goodness being packed into today's kernels, the resulting image isn't as slim as it once was. In light of this, don't pass -msmall-data to gcc, which otherwise results in link failures due to impossible relocations when compiling anything but the most trivial configurations. Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Reviewed-by: NMatt Turner <mattst88@gmail.com> Tested-by: NThorsten Kranzkowski <dl8bcu@dl8bcu.de> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NMichael Cree <mcree@orcon.net.nz> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jay Estabrook 提交于
Fixes a NULL pointer dereference at boot on UP1500. Cc: stable@vger.kernel.org Reviewed-and-Tested-by: NMatt Turner <mattst88@gmail.com> Signed-off-by: NJay Estabrook <jay.estabrook@gmail.com> Signed-off-by: NMatt Turner <mattst88@gmail.com> Signed-off-by: NMichael Cree <mcree@orcon.net.nz> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 4月, 2013 1 次提交
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由 Andrew Honig 提交于
This patch adds support for kvm_gfn_to_hva_cache_init functions for reads and writes that will cross a page. If the range falls within the same memslot, then this will be a fast operation. If the range is split between two memslots, then the slower kvm_read_guest and kvm_write_guest are used. Tested: Test against kvm_clock unit tests. Signed-off-by: NAndrew Honig <ahonig@google.com> Signed-off-by: NGleb Natapov <gleb@redhat.com>
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- 06 4月, 2013 13 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm由 Linus Torvalds 提交于
Pull device-mapper fixes from Alasdair Kergon: "A pair of patches to fix the writethrough mode of the device-mapper cache target when the device being cached is not itself wrapped with device-mapper." * tag 'dm-3.9-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: dm cache: reduce bio front_pad size in writeback mode dm cache: fix writes to cache device in writethrough mode
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci由 Linus Torvalds 提交于
Pull PCI fixes from Bjorn Helgaas: "PCI updates for v3.9: ASPM Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus" kexec PCI: Don't try to disable Bus Master on disconnected PCI devices Platform ROM images PCI: Add PCI ROM helper for platform-provided ROM images nouveau: Attempt to use platform-provided ROM image radeon: Attempt to use platform-provided ROM image Hotplug PCI/ACPI: Always resume devices on ACPI wakeup notifications PCI/PM: Disable runtime PM of PCIe ports EISA EISA/PCI: Fix bus res reference EISA/PCI: Init EISA early, before PNP" * tag 'pci-v3.9-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI/PM: Disable runtime PM of PCIe ports PCI/ACPI: Always resume devices on ACPI wakeup notifications PCI: Don't try to disable Bus Master on disconnected PCI devices Revert "PCI/ACPI: Request _OSC control before scanning PCI root bus" radeon: Attempt to use platform-provided ROM image nouveau: Attempt to use platform-provided ROM image EISA/PCI: Init EISA early, before PNP EISA/PCI: Fix bus res reference PCI: Add PCI ROM helper for platform-provided ROM images
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net由 Linus Torvalds 提交于
Pull networking fixes from David Miller: 1) Fix erroneous sock_orphan() leading to crashes and double kfree_skb() in NFC protocol. From Thierry Escande and Samuel Ortiz. 2) Fix use after free in remain-on-channel mac80211 code, from Johannes Berg. 3) nf_reset() needs to reset the NF tracing cookie, otherwise we can leak it from one namespace into another. Fix from Gao Feng and Patrick McHardy. 4) Fix overflow in channel scanning array of mwifiex driver, from Stone Piao. 5) Fix loss of link after suspend/shutdown in r8169, from Hayes Wang. 6) Synchronization of unicast address lists to the undelying device doesn't work because whether to sync is maintained as a boolean rather than a true count. Fix from Vlad Yasevich. 7) Fix corruption of TSO packets in atl1e by limiting the segmented packet length. From Hannes Frederic Sowa. 8) Revert bogus AF_UNIX credential passing change and fix the coalescing issue properly, from Eric W Biederman. 9) Changes of ipv4 address lifetime settings needs to generate a notification, from Jiri Pirko. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (22 commits) netfilter: don't reset nf_trace in nf_reset() net: ipv4: notify when address lifetime changes ixgbe: fix registration order of driver and DCA nofitication af_unix: If we don't care about credentials coallesce all messages Revert "af_unix: dont send SCM_CREDENTIAL when dest socket is NULL" bonding: remove sysfs before removing devices atl1e: limit gso segment size to prevent generation of wrong ip length fields net: count hw_addr syncs so that unsync works properly. r8169: fix auto speed down issue netfilter: ip6t_NPT: Fix translation for non-multiple of 32 prefix lengths mwifiex: limit channel number not to overflow memory NFC: microread: Fix build failure due to a new MEI bus API iwlwifi: dvm: fix the passive-no-RX workaround netfilter: nf_conntrack: fix error return code NFC: llcp: Keep the connected socket parent pointer alive mac80211: fix idle handling sequence netfilter: nfnetlink_acct: return -EINVAL if object name is empty netfilter: nfnetlink_queue: fix error return code in nfnetlink_queue_init() netfilter: reset nf_trace in nf_reset mac80211: fix remain-on-channel cancel crash ...
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由 Jan Beulich 提交于
eboot.o and efi_stub_$(BITS).o didn't get added to "targets", and hence their .cmd files don't get included by the build machinery, leading to the files always getting rebuilt. Rather than adding the two files individually, take the opportunity and add $(VMLINUX_OBJS) to "targets" instead, thus allowing the assignment at the top of the file to be shrunk quite a bit. At the same time, remove a pointless flags override line - the variable assigned to was misspelled anyway, and the options added are meaningless for assembly sources. [ hpa: the patch is not minimal, but I am taking it for -urgent anyway since the excess impact of the patch seems to be small enough. ] Signed-off-by: NJan Beulich <jbeulich@suse.com> Link: http://lkml.kernel.org/r/515C5D2502000078000CA6AD@nat28.tlf.novell.com Cc: Matthew Garrett <mjg@redhat.com> Cc: Matt Fleming <matt.fleming@intel.com> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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由 Patrick McHardy 提交于
Commit 130549fe ("netfilter: reset nf_trace in nf_reset") added code to reset nf_trace in nf_reset(). This is wrong and unnecessary. nf_reset() is used in the following cases: - when passing packets up the the socket layer, at which point we want to release all netfilter references that might keep modules pinned while the packet is queued. nf_trace doesn't matter anymore at this point. - when encapsulating or decapsulating IPsec packets. We want to continue tracing these packets after IPsec processing. - when passing packets through virtual network devices. Only devices on that encapsulate in IPv4/v6 matter since otherwise nf_trace is not used anymore. Its not entirely clear whether those packets should be traced after that, however we've always done that. - when passing packets through virtual network devices that make the packet cross network namespace boundaries. This is the only cases where we clearly want to reset nf_trace and is also what the original patch intended to fix. Add a new function nf_reset_trace() and use it in dev_forward_skb() to fix this properly. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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git://git.linux-mips.org/pub/scm/ralf/upstream-linus由 Linus Torvalds 提交于
Pull MIPS fixes from Ralf Baechle: "Fixes for a number of small glitches in various corners of the MIPS tree. No particular areas is standing out. With this applied all MIPS defconfigs are building fine. No merge conflicts are expected." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Delete definition of SA_RESTORER. MIPS: Fix ISA level which causes secondary cache init bypassing and more MIPS: Fix build error cavium-octeon without CONFIG_SMP MIPS: Kconfig: Rename SNIPROM too MIPS: Alchemy: Fix typo "CONFIG_DEBUG_PCI" MIPS: Unbreak function tracer for 64-bit kernel.
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git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes由 Linus Torvalds 提交于
Pull GFS2 fixes from Steven Whitehouse: "There are two patches which fix up a couple of minor issues in the DLM interface code, a missing error path in gfs2_rs_alloc(), one patch which fixes a problem during "withdraw" and a fix for discards/FITRIM when using 4k sector sized devices." * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes: GFS2: Issue discards in 512b sectors GFS2: Fix unlock of fcntl locks during withdrawn state GFS2: return error if malloc failed in gfs2_rs_alloc() GFS2: use memchr_inv GFS2: use kmalloc for lvb bitmap
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由 Mike Marciniszyn 提交于
Commit e2eed58b ("IB/qib: change QLogic to Intel") moved a firmware file potentially breaking the ABI. This patch reverts that aspect of the fix as well as reverting the firmware name as used in qib. Reported-by: NDavid Woodhouse <dwmw2@infradead.org> Signed-off-by: NMike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc由 Linus Torvalds 提交于
Pull spi fixes from Mark Brown: "A bunch of small driver fixes plus a fix for error handling in the core - nothing too exciting overall." * tag 'spi-fix-v3.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc: spi/mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts spi: Unlock a spinlock before calling into the controller driver. spi/s3c64xx: modified error interrupt handling and init spi/bcm63xx: don't disable non enabled clocks in probe error path spi/bcm63xx: Remove unused variable spi: slink-tegra20: move runtime pm calls to transfer_one_message
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由 Bob Peterson 提交于
This patch changes GFS2's discard issuing code so that it calls function sb_issue_discard rather than blkdev_issue_discard. The code was calling blkdev_issue_discard and specifying the correct sector offset and sector size, but blkdev_issue_discard expects these values to be in terms of 512 byte sectors, even if the native sector size for the device is different. Calling sb_issue_discard with the BLOCK size instead ensures the correct block-to-512b-sector translation. I verified that "minlen" is specified in blocks, so comparing it to a number of blocks is correct. Signed-off-by: NBob Peterson <rpeterso@redhat.com> Signed-off-by: NSteven Whitehouse <swhiteho@redhat.com>
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由 Johan Hovold 提交于
This reverts commit 0ef1594c. This patch introduced a few races which cannot be easily fixed with a small follow-up patch. Furthermore, the SoC with the broken hardware register, which this patch intended to add support for, can only be used with device trees, which this driver currently does not support. [ Here is the discussion that led to this "revert" patch: https://lkml.org/lkml/2013/4/3/176 ] Cc: stable <stable@vger.kernel.org> Signed-off-by: NJohan Hovold <jhovold@gmail.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://gitorious.org/linux-omap-dss2/linux由 Linus Torvalds 提交于
Pull fbdev fixes from Tomi Valkeinen: "Fix uvesafb crash bug and typoed flag name in fbmon's new videomode code" * tag 'fbdev-fixes-3.9-rc6' of git://gitorious.org/linux-omap-dss2/linux: video:uvesafb: Fix dereference NULL pointer code path fbmon: use VESA_DMT_VSYNC_HIGH to fix typo
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound由 Linus Torvalds 提交于
Pull sound fixes from Takashi Iwai: "This contains slightly more volumes than usual at this stage, mostly because of my vacation in the last week. Nothing to scare, all small and/or trivial fixes: - Fix loop path handling in ASoC DAPM - Some memory handling fixes in ASoC core - Fix spear_pcm to adapt to the updated API - HD-audio HDMI ELD handling fixes - Fix for CM6331 USB-audio SRC change bugs - Revert power_save_controller option change due to user-space usage - A few other small ASoC and HD-audio fixes" * tag 'sound-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/generic - fix uninitialized variable Revert "ALSA: hda - Allow power_save_controller option override DCAPS" ALSA: hda - fix typo in proc output ALSA: hda - Enabling Realtek ALC 671 codec ALSA: usb: Work around CM6631 sample rate change bug ALSA: hda - bug fix on HDMI ELD debug message ALSA: hda - bug fix on return value when getting HDMI ELD info ASoC: dma-sh7760: Fix compile error ASoC: core: fix invalid free of devm_ allocated data ASoC: spear_pcm: Update to new pcm_new() API ASoC:: max98090: Remove executable bit ASoC: dapm: Fix pointer dereference in is_connected_output_ep() ASoC: pcm030 audio fabric: remove __init from probe ASoC: imx-ssi: Fix occasional AC97 reset failure ASoC: core: fix possible memory leak in snd_soc_bytes_put() ASoC: wm_adsp: fix possible memory leak in wm_adsp_load_coeff() ASoC: dapm: Fix handling of loops ASoC: si476x: Add missing break for SNDRV_PCM_FORMAT_S8 switch case
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- 05 4月, 2013 11 次提交
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由 Mike Snitzer 提交于
A recent patch to fix the dm cache target's writethrough mode extended the bio's front_pad to include a 1056-byte struct dm_bio_details. Writeback mode doesn't need this, so this patch reduces the per_bio_data_size to 16 bytes in this case instead of 1096. The dm_bio_details structure was added in "dm cache: fix writes to cache device in writethrough mode" which fixed commit e2e74d61 ("dm cache: fix race in writethrough implementation"). In writeback mode we avoid allocating the writethrough-specific members of the per_bio_data structure (the dm_bio_details structure included). Signed-off-by: NMike Snitzer <snitzer@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Darrick J. Wong 提交于
The dm-cache writethrough strategy introduced by commit e2e74d61 ("dm cache: fix race in writethrough implementation") issues a bio to the origin device, remaps and then issues the bio to the cache device. This more conservative in-series approach was selected to favor correctness over performance (of the previous parallel writethrough). However, this in-series implementation that reuses the same bio to write both the origin and cache device didn't take into account that the block layer's req_bio_endio() modifies a completing bio's bi_sector and bi_size. So the new writethrough strategy needs to preserve these bio fields, and restore them before submission to the cache device, otherwise nothing gets written to the cache (because bi_size is 0). This patch adds a struct dm_bio_details field to struct per_bio_data, and uses dm_bio_record() and dm_bio_restore() to ensure the bio is restored before reissuing to the cache device. Adding such a large structure to the per_bio_data is not ideal but we can improve this later, for now correctness is the important thing. This problem initially went unnoticed because the dm-cache test-suite uses a linear DM device for the dm-cache device's origin device. Writethrough worked as expected because DM submits a *clone* of the original bio, so the original bio which was reused for the cache was never touched. Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com> Signed-off-by: NJoe Thornber <ejt@redhat.com> Signed-off-by: NMike Snitzer <snitzer@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Ralf Baechle 提交于
SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever supported its use and no libc was using it, so the entire sa-restorer functionality was removed with lmo commit 39bffc12c3580ab [Zap sa_restorer.] for 2.5.48 retaining only the SA_RESTORER definition as a reminder to avoid accidental reuse of the mask bit. Upstream cdef9602fbf1871a43f0f1b5cea10dd0f275167d [signal: always clear sa_restorer on execve] adds code that assumes sa_sigaction has an sa_restorer field, if SA_RESTORER is defined which would break MIPS. So remove the SA_RESTORER definition before the v3.8.4 merge. Signed-off-by: NRalf Baechle <ralf@linux-mips.org> (cherry picked from commit 17da8d63add23830892ac4dc2cbb3b5d4ffb79a8)
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由 Deng-Cheng Zhu 提交于
The commit a96102be introduced set_isa() where compatible ISA info is also set aside from the one gets passed in. It means, for example, 1004K will have MIPS_CPU_ISA_M32R2/M32R1/II/I flags. This leads to things like the following inappropriate: if (c->isa_level == MIPS_CPU_ISA_M32R1 || c->isa_level == MIPS_CPU_ISA_M32R2 || c->isa_level == MIPS_CPU_ISA_M64R1 || c->isa_level == MIPS_CPU_ISA_M64R2) This patch fixes it. Signed-off-by: NDeng-Cheng Zhu <dengcheng.zhu@imgtec.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 EunBong Song 提交于
Singed-off-by: NEunBong Song <eunb.song@samsung.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Paul Bolle 提交于
CONFIG_SNIPROM was renamed to CONFIG_FW_SNIPROM in v3.8. Let's rename SNIPROM itself too. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org; Cc: linux-kernel@vger.kernel.org Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Paul Bolle 提交于
Commit 7517de34 ("MIPS: Alchemy: Redo PCI as platform driver") added a reference to CONFIG_DEBUG_PCI. Change it to CONFIG_PCI_DEBUG, as that is a valid Kconfig macro. Also add a newline to a debugging printk that this fix enables. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
Commit 58b69401 [MIPS: Function tracer: Fix broken function tracing] completely broke the function tracer for 64-bit kernels. The symptom is a system hang very early in the boot process. The fix: Remove/fix $sp adjustments for 64-bit case. Signed-off-by: NDavid Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Cc: Al Cooper <alcooperx@gmail.com> Cc: viric@viric.name Cc: stable@vger.kernel.org # 3.8.x Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jiri Slaby 提交于
changed is not initialized in path_power_down_sync, but it is expected to be false in case no change happened in the loop. So set it to false. Signed-off-by: NJiri Slaby <jslaby@suse.cz> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Jiri Pirko 提交于
if userspace changes lifetime of address, send netlink notification and call notifier. Signed-off-by: NJiri Pirko <jiri@resnulli.us> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Jakub Kicinski 提交于
ixgbe_notify_dca cannot be called before driver registration because it expects driver's klist_devices to be allocated and initialized. While on it make sure debugfs files are removed when registration fails. Cc: stable <stable@vger.kernel.org> Signed-off-by: NJakub Kicinski <jakub.kicinski@intel.com> Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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