- 05 Oct, 2012 19 commits
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Andi Kleen authored
Signed-off-by:
Andi Kleen <ak@linux.intel.com> Cc: David Miller <davem@davemloft.net> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
[akpm@linux-foundation.org: checkpatch fixes] Signed-off-by:
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Andi Kleen authored
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Andi Kleen authored
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Andi Kleen authored
The PA-RISC tool chain seems to have some problem with correct read/write attributes on sections. This causes problems when the const sections are fixed up for other architecture to only contain truly read-only data. Disable const sections for PA-RISC This can cause a bit of noise with modpost. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Martin Michlmayr authored
The ACARD driver calls udelay() with a value > 2000, which leads to to the following compilation error on ARM: ERROR: "__bad_udelay" [drivers/scsi/atp870u.ko] undefined! make[1]: *** [__modpost] Error 1 This is because udelay is defined on ARM, roughly speaking, as #define udelay(n) ((n) > 2000 ? __bad_udelay() : \ __const_udelay((n) * ((2199023U*HZ)>>11))) The argument to __const_udelay is the number of jiffies to wait divided by 4, but this does not work unless the multiplication does not overflow, and that is what the build error is designed to prevent. The intended behavior can be achieved by using mdelay to call udelay multiple times in a loop. [jrnieder@gmail.com: adding context] Signed-off-by:
Martin Michlmayr <tbm@cyrius.com> Signed-off-by:
Jonathan Nieder <jrnieder@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Fengguang Wu authored
It's required for the core fs/namespace.c and many other basic features. Signed-off-by:
Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
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Sascha Hauer authored
The call if_changed mechanism does not work when the command contains backslashes. This basically is an issue with lzo and bzip2 compressed kernels. The compressed binaries do not contain the uncompressed image size, so these use size_append to append the size. This results in backslashes in the executed command. With this if_changed always detects a change in the command and rebuilds the compressed image even if nothing has changed. Fix this by escaping backslashes in make-cmd Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
Jan Luebbe <jlu@pengutronix.de> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Bernhard Walle <bernhard@bwalle.de> Cc: Michal Marek <mmarek@suse.cz> Cc: <stable@vger.kernel.org> Signed-off-by:
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Fabio Estevam authored
Do the same as commit a03a202e ("dmaengine: failure to get a specific DMA channel is not critical") to get rid of the following messages during kernel boot: dmaengine_get: failed to get dma1chan0: (-22) dmaengine_get: failed to get dma1chan1: (-22) dmaengine_get: failed to get dma1chan2: (-22) dmaengine_get: failed to get dma1chan3: (-22) .. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Geert Uytterhoeven authored
It seems the current (gcc 4.6.3) no longer provides this so make it conditional. As reported by Tony before, the mn10300 architecture cross-compiles with gcc-4.6.3 if -mmem-funcs is not added to KBUILD_CFLAGS. Reported-by:
Tony Breeds <tony@bakeyournoodle.com> Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Kees Cook authored
Replace the #defines used when CONFIG_AUDIT or CONFIG_AUDIT_SYSCALLS are disabled so we get type checking during those builds. Suggested-by:
Kees Cook <keescook@chromium.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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- 04 Oct, 2012 7 commits
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM updates from Avi Kivity: "Highlights of the changes for this release include support for vfio level triggered interrupts, improved big real mode support on older Intels, a streamlines guest page table walker, guest APIC speedups, PIO optimizations, better overcommit handling, and read-only memory." * tag 'kvm-3.7-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (138 commits) KVM: s390: Fix vcpu_load handling in interrupt code KVM: x86: Fix guest debug across vcpu INIT reset KVM: Add resampling irqfds for level triggered interrupts KVM: optimize apic interrupt delivery KVM: MMU: Eliminate pointless temporary 'ac' KVM: MMU: Avoid access/dirty update loop if all is well KVM: MMU: Eliminate eperm temporary KVM: MMU: Optimize is_last_gpte() KVM: MMU: Simplify walk_addr_generic() loop KVM: MMU: Optimize pte permission checks KVM: MMU: Update accessed and dirty bits after guest pagetable walk KVM: MMU: Move gpte_access() out of paging_tmpl.h KVM: MMU: Optimize gpte_access() slightly KVM: MMU: Push clean gpte write protection out of gpte_access() KVM: clarify kvmclock documentation KVM: make processes waiting on vcpu mutex killable KVM: SVM: Make use of asm.h KVM: VMX: Make use of asm.h KVM: VMX: Make lto-friendly KVM: x86: lapic: Clean up find_highest_vector() and count_vectors() ... Conflicts: arch/s390/include/asm/processor.h arch/x86/kvm/i8259.c
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Linus Torvalds authored
Fengguang correctly points out that the firmware reading should not use vfs_read(), since the buffer is in kernel space. The vfs_read() just happened to work for kernel threads, but sparse warns about the incorrect address spaces, and it's definitely incorrect and could fail for other users of the firmware loading. Reported-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fsLinus Torvalds authored
Pull ext3 & udf fixes from Jan Kara: "Shortlog pretty much says it all. The interesting bits are UDF support for direct IO and ext3 fix for a long standing oops in data=journal mode." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: jbd: Fix assertion failure in commit code due to lacking transaction credits UDF: Add support for O_DIRECT ext3: Replace 0 with NULL for pointer in super.c file udf: add writepages support for udf ext3: don't clear orphan list on ro mount with errors reiserfs: Make reiserfs_xattr_handlers static
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git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteprocLinus Torvalds authored
Pull remoteproc update from Ohad Ben-Cohen: - Remoteproc Recovery - by Fernando Guzman Lugo When a remote processor crash is detected, this mechanism will remove all virtio children devices, wait until their drivers let go, hard reset the remote processor and reload the firmware (resulting in the relevant virtio children devices re-added). Essentially the entire software stack is reset, together with the relevant hardware, so users don't have to reset the entire phone. - STE Modem driver is added - by Sjur Brændeland - OMAP DSP boot address support is added - by Juan Gutierrez - A handful of fixes/cleanups - Sjur Brændeland, Dan Carpenter, Emil Goode * tag 'remoteproc-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc: remoteproc: Fix use of format specifyer remoteproc: fix a potential NULL-dereference on cleanup remoteproc: select VIRTIO to avoid build breakage remoteproc: return -EFAULT on copy_from_user failure remoteproc: snprintf() can return more than was printed remoteproc: Add STE modem driver remtoteproc: maintain max notifyid remoteproc: create a 'recovery' debugfs entry remoteproc: add actual recovery implementation remoteproc: add rproc_report_crash function to notify rproc crashes remoteproc: Add dependency to HAS_DMA remoteproc/omap: set bootaddr support
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto update from Herbert Xu: - Optimised AES/SHA1 for ARM. - IPsec ESN support in talitos and caam. - x86_64/avx implementation of cast5/cast6. - Add/use multi-algorithm registration helpers where possible. - Added IBM Power7+ in-Nest support. - Misc fixes. Fix up trivial conflicts in crypto/Kconfig due to the sparc64 crypto config options being added next to the new ARM ones. [ Side note: cut-and-paste duplicate help texts make those conflicts harder to read than necessary, thanks to git being smart about minimizing conflicts and maximizing the common parts... ] * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (71 commits) crypto: x86/glue_helper - fix storing of new IV in CBC encryption crypto: cast5/avx - fix storing of new IV in CBC encryption crypto: tcrypt - add missing tests for camellia and ghash crypto: testmgr - make test_aead also test 'dst != src' code paths crypto: testmgr - make test_skcipher also test 'dst != src' code paths crypto: testmgr - add test vectors for CTR mode IV increasement crypto: testmgr - add test vectors for partial ctr(cast5) and ctr(cast6) crypto: testmgr - allow non-multi page and multi page skcipher tests from same test template crypto: caam - increase TRNG clocks per sample crypto, tcrypt: remove local_bh_disable/enable() around local_irq_disable/enable() crypto: tegra-aes - fix error return code crypto: crypto4xx - fix error return code crypto: hifn_795x - fix error return code crypto: ux500 - fix error return code crypto: caam - fix error IDs for SEC v5.x RNG4 hwrng: mxc-rnga - Access data via structure hwrng: mxc-rnga - Adapt clocks to new i.mx clock framework crypto: caam - add IPsec ESN support crypto: 842 - remove .cra_list initialization Revert "[CRYPTO] cast6: inline bloat--" ...
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Jussi Kivilinna authored
Glue_helper incorrectly XORs new IV over old IV at end of CBC encryption function when it should store. This causes CBC encryption to give incorrect output on multi-page encryption requests. Signed-off-by:
Jussi Kivilinna <jussi.kivilinna@mbnet.fi> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au>
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm merge (part 1) from Dave Airlie: "So first of all my tree and uapi stuff has a conflict mess, its my fault as the nouveau stuff didn't hit -next as were trying to rebase regressions out of it before we merged. Highlights: - SH mobile modesetting driver and associated helpers - some DRM core documentation - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write combined pte writing, ilk rc6 support, - nouveau: major driver rework into a hw core driver, makes features like SLI a lot saner to implement, - psb: add eDP/DP support for Cedarview - radeon: 2 layer page tables, async VM pte updates, better PLL selection for > 2 screens, better ACPI interactions The rest is general grab bag of fixes. So why part 1? well I have the exynos pull req which came in a bit late but was waiting for me to do something they shouldn't have and it looks fairly safe, and David Howells has some more header cleanups he'd like me to pull, that seem like a good idea, but I'd like to get this merge out of the way so -next dosen't get blocked." Tons of conflicts mostly due to silly include line changes, but mostly mindless. A few other small semantic conflicts too, noted from Dave's pre-merged branch. * 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits) drm/nv98/crypt: fix fuc build with latest envyas drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering drm/nv41/vm: fix and enable use of "real" pciegart drm/nv44/vm: fix and enable use of "real" pciegart drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie drm/nouveau: store supported dma mask in vmmgr drm/nvc0/ibus: initial implementation of subdev drm/nouveau/therm: add support for fan-control modes drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules drm/nouveau/therm: calculate the pwm divisor on nv50+ drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster drm/nouveau/therm: move thermal-related functions to the therm subdev drm/nouveau/bios: parse the pwm divisor from the perf table drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices drm/nouveau/therm: rework thermal table parsing drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table drm/nouveau: fix pm initialization order drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it drm/nouveau: log channel debug/error messages from client object rather than drm client drm/nouveau: have drm debugging macros build on top of core macros ...
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- 03 Oct, 2012 14 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespaceLinus Torvalds authored
Pull user namespace compile fix from Eric W Biederman: "This tree contains a trivial build fix for one of the staging drivers when user namespace support is enabled" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: userns: Fix build of drivers/staging/dgrp
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Linus Torvalds authored
This is a first step in allowing people to by-pass udev for loading device firmware. Current versions of udev will deadlock (causing us to block for the 30 second timeout) under some circumstances if the firmware is loaded as part of the module initialization path, and this is causing problems for media drivers in particular. The current patch hardcodes the firmware path that udev uses by default, and will fall back to the legacy udev mode if the firmware cannot be found there. We'd like to add support for both configuring the paths and the fallback behaviour, but in the meantime this hopefully fixes the immediate problem, while also giving us a way forward. [ v2: Some VFS layer interface cleanups suggested by Al Viro ] [ v3: use the default udev paths suggested by Kay Sievers ] Suggested-by:
Ivan Kalvachev <ikalvachev@gmail.com> Acked-by:
Greg KH <gregkh@linuxfoundation.org> Acked-by:
Al Viro <viro@zeniv.linux.org.uk> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Kay Sievers <kay@redhat.com> Cc: Ming Lei <ming.lei@canonical.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394Linus Torvalds authored
Pull firewire updates from Stefan Richter: - feed GUIDs of FireWire nodes to the random pool - more complete quirk handling of a TI S400B phy - avoid holding a core lock while calling into highlevel drivers * tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: addendum to address handler RCU conversion firewire: remove global lock around address handlers, convert to RCU firewire: ohci: get IR bit from TSB41BA3D phy firewire: core: feed /dev/random with devices' GUIDs
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git://git.infradead.org/users/dhowells/linux-headersLinus Torvalds authored
Pull preparatory patches for user API disintegration from David Howells: "The patches herein prepare for the extraction of the Userspace API bits from the various header files named in the Kbuild files. New subdirectories are created under either include/uapi/ or arch/x/include/uapi/ that correspond to the subdirectory containing that file under include/ or arch/x/include/. The new subdirs under the uapi/ directory are populated with Kbuild files that mostly do nothing at this time. Further patches will disintegrate the headers in each original directory and fill in the Kbuild files as they do it. These patches also: (1) fix up #inclusions of "foo.h" rather than <foo.h>. (2) Remove some redundant #includes from the DRM code. (3) Make the kernel build infrastructure handle Kbuild files both in the old places and the new UAPI place that both specify headers to be exported. (4) Fix some kernel tools that #include kernel headers during their build. I have compile tested this with allyesconfig against x86_64, allmodconfig against i386 and a scattering of additional defconfigs of other arches. Prepared for main script Signed-off-by:David Howells <dhowells@redhat.com> Acked-by:
Arnd Bergmann <arnd@arndb.de> Acked-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Michael Kerrisk <mtk.manpages@gmail.com> Acked-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by:
Dave Jones <davej@redhat.com> Acked-by: H. Peter Anvin <hpa@zytor.com>" * tag 'uapi-prep-20121002' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: Plumb the UAPI Kbuilds into the user header installation and checking UAPI: x86: Differentiate the generated UAPI and internal headers UAPI: Remove the objhdr-y export list UAPI: Move linux/version.h UAPI: Set up uapi/asm/Kbuild.asm UAPI: x86: Fix insn_sanity build failure after UAPI split UAPI: x86: Fix the test_get_len tool UAPI: (Scripted) Set up UAPI Kbuild files UAPI: Partition the header include path sets and add uapi/ header directories UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ UAPI: (Scripted) Remove redundant DRM UAPI header #inclusions from drivers/gpu/. UAPI: Refer to the DRM UAPI headers with <...> and from certain headers only
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Eric W. Biederman authored
Explicitly test for GLOBAL_ROOT_UID and GLOBAL_ROOT_GID instead of using 0, allowing dgrp to compile and work properly when user namespace support is enabled. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:"Eric W. Biederman" <ebiederm@xmission.com>
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git://sources.calxeda.com/kernel/linuxLinus Torvalds authored
Pull devicetree updates from Rob Herring: - Import of latest upstream device tree compiler (dtc) - New function of_get_child_by_name - Support for #size-cells of 0 and #addr-cells of >2 - Couple of DT binding documentation updates Fix up trivial conflicts due to of_get_child_by_name() having been added next to the new of_get_next_available_child(). * tag 'dt-for-3.7' of git://sources.calxeda.com/kernel/linux: MAINTAINERS: add scripts/dtc under Devicetree maintainers dtc: import latest upstream dtc dt: Document general interrupt controller bindings dt/s3c64xx/spi: Use of_get_child_by_name to get a named child dt: introduce of_get_child_by_name to get child node by name of: i2c: add support for wakeup-source property of/address: Handle #address-cells > 2 specially DT: export of_irq_to_resource_table() devicetree: serial: Add documentation for imx serial devicetree: pwm: mxs-pwm.txt: Fix reg field annotation of: Allow busses with #size-cells=0
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git://github.com/kleikamp/linux-shaggyLinus Torvalds authored
Pull JFS update from Dave Kleikamp: "JFS TRIM support and some minor fixes" * tag 'jfs-3.7' of git://github.com/kleikamp/linux-shaggy: jfs: Fix do_div precision in commit b40c2e66 JFS: use list_move instead of list_del/list_add jfs: Remove obsolete email address fs/jfs: TRIM support for JFS Filesystem
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Matt Fleming authored
We're starting to need a channel through which we can funnel EFI patches to make sure they get merged in a timely fashion. Matthew and Peter seem happy enough for me to take that bullet. Signed-off-by:
Matt Fleming <matt.fleming@intel.com> Acked-by:
H. Peter Anvin <hpa@zytor.com> Acked-by:
Ingo Molnar <mingo@kernel.org> Cc: Matthew Garrett <mjg@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Len Brown <len.brown@intel.com> Signed-off-by:
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git://jni.nu/crisLinus Torvalds authored
Pull CRIS changes from Jesper Nilsson: "Removal of some unused code from the CRIS port" * tag 'cris-for-linus-3.7' of git://jni.nu/cris: CRIS: Remove VCS simulator specific code cris/PCI: remove pcibios_assign_resources()
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
Pull sparc fixes from David Miller: "Some quick fixes after today's merge-window pull" 1) Add missing dependency on Sparc DES driver, oops. From Dave Jones. 2) Tell GCC that prom_printf() is printf-like and fix the few resultiing warnings. From Akinobu Mita. 3) Niagara-2 memcpy doesn't provide it's return value correctly in some circumstances. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: fix format string argument for prom_printf() crypto: Build SPARC DES algorithms on SPARC only. sparc64: Fix return value of Niagara-2 memcpy. -
Jesper Nilsson authored
The VCS simulator was a tool used in the development of the chip and is no longer used or necessary. Signed-off-by:Jesper Nilsson <jesper.nilsson@axis.com>
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Bjorn Helgaas authored
There's no caller of pcibios_assign_resources() in the tree. It is exported, so an out-of-tree module *could* call it, but no other arch exports pcibios_assign_resources(), so it would have to be a CRIS-specific module. I doubt such a caller exists. CC: Mikael Starvik <starvik@axis.com> Signed-off-by:
Bjorn Helgaas <bhelgaas@google.com> Signed-off-by:
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Linus Torvalds authored
Merge tag 'stable/for-linus-3.7-x86-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen update from Konrad Rzeszutek Wilk: "Features: - When hotplugging PCI devices in a PV guest we can allocate Xen-SWIOTLB later. - Cleanup Xen SWIOTLB. - Support pages out grants from HVM domains in the backends. - Support wild cards in xen-pciback.hide=(BDF) arguments. - Update grant status updates with upstream hypervisor. - Boot PV guests with more than 128GB. - Cleanup Xen MMU code/add comments. - Obtain XENVERS using a preferred method. - Lay out generic changes to support Xen ARM. - Allow privcmd ioctl for HVM (used to do only PV). - Do v2 of mmap_batch for privcmd ioctls. - If hypervisor saves the LED keyboard light - we will now instruct the kernel about its state. Fixes: - More fixes to Xen PCI backend for various calls/FLR/etc. - With more than 4GB in a 64-bit PV guest disable native SWIOTLB. - Fix up smatch warnings. - Fix up various return values in privmcmd and mm." * tag 'stable/for-linus-3.7-x86-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: (48 commits) xen/pciback: Restore the PCI config space after an FLR. xen-pciback: properly clean up after calling pcistub_device_find() xen/vga: add the xen EFI video mode support xen/x86: retrieve keyboard shift status flags from hypervisor. xen/gndev: Xen backend support for paged out grant targets V4. xen-pciback: support wild cards in slot specifications xen/swiotlb: Fix compile warnings when using plain integer instead of NULL pointer. xen/swiotlb: Remove functions not needed anymore. xen/pcifront: Use Xen-SWIOTLB when initting if required. xen/swiotlb: For early initialization, return zero on success. xen/swiotlb: Use the swiotlb_late_init_with_tbl to init Xen-SWIOTLB late when PV PCI is used. xen/swiotlb: Move the error strings to its own function. xen/swiotlb: Move the nr_tbl determination in its own function. xen/arm: compile and run xenbus xen: resynchronise grant table status codes with upstream xen/privcmd: return -EFAULT on error xen/privcmd: Fix mmap batch ioctl error status copy back. xen/privcmd: add PRIVCMD_MMAPBATCH_V2 ioctl xen/mm: return more precise error from xen_remap_domain_range() xen/mmu: If the revector fails, don't attempt to revector anything else. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mmLinus Torvalds authored
Pull frontswap update from Konrad Rzeszutek Wilk: "Features: - Support exlusive get if backend is capable. Bug-fixes: - Fix compile warnings - Add comments/cleanup doc - Fix wrong if condition" * tag 'stable/for-linus-3.7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/mm: frontswap: support exclusive gets if tmem backend is capable mm: frontswap: fix a wrong if condition in frontswap_shrink mm/frontswap: fix uninit'ed variable warning mm/frontswap: cleanup doc and comment error mm: frontswap: remove unneeded headers
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