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2011-07-22OpenRISC: Memory managementJonas Bonn
Signed-off-by: Jonas Bonn <jonas@southpole.se> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22OpenRISC: Device treeJonas Bonn
The OpenRISC architecture uses the device tree infrastructure for the platform description. This is currently limited to having a device tree built into the kernel, but work is underway within the OpenRISC project to define how this device tree blob should be passed into the kernel from an external resource. Patch contains a single example DTS file to go with the defconfig for or1ksim. Signed-off-by: Jonas Bonn <jonas@southpole.se> Cc: devicetree-discuss@lists.ozlabs.org Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22OpenRISC: Boot codeJonas Bonn
Architecture code and early setup routines for booting Linux. Signed-off-by: Jonas Bonn <jonas@southpole.se> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-22asm-generic: move archictures to common delay.hJonas Bonn
This patch moves the in-tree architectures that were using the 'generic' delay.h over to using the header file in asm-generic. This is not done using the generic-y mechanism as none of these arch's have started using that mechanism yet. This is a trivial change to make later when the arch begins using generic-y. Note the subtle change to the avr32 and SH architectures where the argument to __const_udelay was previously using the rounded down constant value instead of the rounded up value. Signed-off-by: Jonas Bonn <jonas@southpole.se> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
2011-06-27um: add asm/percpu.hRichard Weinberger
To make SLUB work on UML we need this_cpu_cmpxchg from asm-generic/percpu.h. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27Fix node_start/end_pfn() definition for mm/page_cgroup.cKAMEZAWA Hiroyuki
commit 21a3c96 uses node_start/end_pfn(nid) for detection start/end of nodes. But, it's not defined in linux/mmzone.h but defined in /arch/???/include/mmzone.h which is included only under CONFIG_NEED_MULTIPLE_NODES=y. Then, we see mm/page_cgroup.c: In function 'page_cgroup_init': mm/page_cgroup.c:308: error: implicit declaration of function 'node_start_pfn' mm/page_cgroup.c:309: error: implicit declaration of function 'node_end_pfn' So, fixiing page_cgroup.c is an idea... But node_start_pfn()/node_end_pfn() is a very generic macro and should be implemented in the same manner for all archs. (m32r has different implementation...) This patch removes definitions of node_start/end_pfn() in each archs and defines a unified one in linux/mmzone.h. It's not under CONFIG_NEED_MULTIPLE_NODES, now. A result of macro expansion is here (mm/page_cgroup.c) for !NUMA start_pfn = ((&contig_page_data)->node_start_pfn); end_pfn = ({ pg_data_t *__pgdat = (&contig_page_data); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;}); for NUMA (x86-64) start_pfn = ((node_data[nid])->node_start_pfn); end_pfn = ({ pg_data_t *__pgdat = (node_data[nid]); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;}); Changelog: - fixed to avoid using "nid" twice in node_end_pfn() macro. Reported-and-acked-by: Randy Dunlap <randy.dunlap@oracle.com> Reported-and-tested-by: Ingo Molnar <mingo@elte.hu> Acked-by: Mel Gorman <mgorman@suse.de> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: pm: ensure ARMv7 CPUs save and restore the TLS register ARM: pm: proc-v7: fix missing struct processor pointers for suspend code ARM: 6969/1: plat-iop: fix build error ARM: 6961/1: zImage: Add build-time check for correctly-sized proc_type entries ARM: SMP: wait for CPU to be marked active ARM: 6963/1: Thumb-2: Relax relocation requirements for non-function symbols ARM: 6962/1: mach-h720x: fix build error ARM: 6959/1: SMP build fix for entry-macro-multi.S
2011-06-27Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] allow setting of upper 32 bit in smp_ctl_set_bit [S390] hwsampler: Set a sane default sampling rate [S390] s390: enforce HW limits for the initial sampling rate [S390] kvm-s390: fix kconfig dependencies
2011-06-24Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: x86/PCI/ACPI: fix type mismatch PCI: fix new kernel-doc warning PCI: Fix warning in drivers/pci/probe.c on sparc64
2011-06-24ARM: pm: ensure ARMv7 CPUs save and restore the TLS registerRussell King
Ensure that the TLS register is saved and restored over a suspend cycle, so that userspace programs don't see a corrupted TLS value. Tested-by: Kevin Hilman <khilman@ti.com> Acked-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-24ARM: pm: proc-v7: fix missing struct processor pointers for suspend codeRussell King
Add the missing suspend/resume pointers for the suspend code. This is needed when building for multiple CPUs. Tested-by: Kevin Hilman <khilman@ti.com> Acked-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-22[S390] allow setting of upper 32 bit in smp_ctl_set_bitJan Glauber
The bit shift operation in smp_ctl_set_bit does not specify the type of the shifted bit so integer is used as default. Therefore it is not possible to set bits in the upper 32 bit of the control register if the kernel runs in 64 bit mode. Fix this by specifying the type as unsigned long. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-22[S390] hwsampler: Set a sane default sampling rateChristian Borntraeger
The sampling interval for the hardware sampler is specified in cycles. (see SA23-2260-01 The Load-Program-Parameter and the CPU-Measurement Facilities) The current default value will therefore result in millions of samples. This patch changes the default sampling interval to 4M, which will result in ~1500 samples per second on a z196 reducing the overhead of sampling. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-22[S390] s390: enforce HW limits for the initial sampling rateChristian Borntraeger
On specific configurations with hwsampler opcontrol --start returns an error on "echo 1 >/dev/oprofile/enable". Turns out that the hw sampling interval is not checked against the hardware limits. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-22[S390] kvm-s390: fix kconfig dependenciesChristian Borntraeger
A user can create the Kconfig combination !VIRTUALIZATION, S390_GUEST which results in the following warnings: warning: (S390_GUEST) selects VIRTIO which has unmet direct dependencies (VIRTUALIZATION) warning: (S390_GUEST && VIRTIO_PCI && VIRTIO_BALLOON) selects VIRTIO_RING which has unmet direct dependencies (VIRTUALIZATION && VIRTIO) warning: (S390_GUEST) selects VIRTIO which has unmet direct dependencies (VIRTUALIZATION) warning: (S390_GUEST && VIRTIO_PCI && VIRTIO_BALLOON) selects VIRTIO_RING which has unmet direct dependencies (VIRTUALIZATION && VIRTIO) S390_GUEST has to select VIRTUALIZATION before selecting VIRTIO and friends. Reported-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-06-21MN10300: asm/uaccess.h needs to #include linux/kernel.h for might_sleep()David Howells
MN10300's asm/uaccess.h needs to #include linux/kernel.h to get might_sleep() otherwise it fails to build on MN10300 allyesconfig. This fails in a few places with messages like the following: In file included from security/keys/trusted.c:14: include/linux/uaccess.h: In function '__copy_from_user_nocache': include/linux/uaccess.h:52: error: implicit declaration of function 'might_sleep' Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-21ARM: 6969/1: plat-iop: fix build errorLinus Walleij
The iop13xx_defconfig didn't build since the platform code uses defines from <asm/ptrace.h>. Simply add the include so it compiles. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-21ARM: 6961/1: zImage: Add build-time check for correctly-sized proc_type entriesDave Martin
It is easy to mis-maintain the proc_types table such that the entries become wrongly-sized and misaligned when the kernel is built in Thumb-2. This patch adds an assembly-time check which will turn most common size/alignment mistakes in this table into build failures, to avoid having to debug the boot-time kernel hang which would happen if the resulting kernel were actually booted. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-21ARM: SMP: wait for CPU to be marked activeRussell King
When we bring a CPU online, we should wait for it to become active before entering the idle thread, so we know that the scheduler and thread migration is going to work. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-20Merge branch 'msm-fix' of git://codeaurora.org/quic/kernel/davidb/linux-msmLinus Torvalds
* 'msm-fix' of git://codeaurora.org/quic/kernel/davidb/linux-msm: msm: timer: Fix DGT rate on 8960 and 8660 msm: timer: compensate for timer shift in msm_read_timer_count msm: timer: Fix SMP build error
2011-06-20msm: timer: Fix DGT rate on 8960 and 8660Stephen Boyd
The DGT runs at 27 MHz divided by 4 on 8660 and 8960. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David Brown <davidb@codeaurora.org>
2011-06-20Merge branch 'stable/bug.fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/setup: Fix for incorrect xen_extra_mem_start. xen: When calling power_off, don't call the halt function. xen: Fix compile warning when CONFIG_SMP is not defined. xen: support CONFIG_MAXSMP xen: partially revert "xen: set max_pfn_mapped to the last pfn mapped"
2011-06-20Merge branch 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: Fix register corruption in pvclock_scale_delta KVM: MMU: fix opposite condition in mapping_level_dirty_bitmap KVM: VMX: do not overwrite uptodate vcpu->arch.cr3 on KVM_SET_SREGS KVM: MMU: Fix build warnings in walk_addr_generic()
2011-06-19KVM: Fix register corruption in pvclock_scale_deltaZachary Amsden
The 128-bit multiply in pvclock.h was missing an output constraint for EDX which caused a register corruption to appear. Thanks to Ulrich for diagnosing the EDX corruption and Avi for providing this fix. Signed-off-by: Zachary Amsden <zamsden@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-06-19KVM: MMU: fix opposite condition in mapping_level_dirty_bitmapSteve
The condition is opposite, it always maps huge page for the dirty tracked page Reported-by: Steve <stefan.bosak@gmail.com> Signed-off-by: Steve <stefan.bosak@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-06-19KVM: VMX: do not overwrite uptodate vcpu->arch.cr3 on KVM_SET_SREGSMarcelo Tosatti
Only decache guest CR3 value if vcpu->arch.cr3 is stale. Fixes loadvm with live guest. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Tested-by: Markus Schade <markus.schade@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-06-19KVM: MMU: Fix build warnings in walk_addr_generic()Borislav Petkov
On 3.0-rc1 I get In file included from arch/x86/kvm/mmu.c:2856: arch/x86/kvm/paging_tmpl.h: In function ‘paging32_walk_addr_generic’: arch/x86/kvm/paging_tmpl.h:124: warning: ‘ptep_user’ may be used uninitialized in this function In file included from arch/x86/kvm/mmu.c:2852: arch/x86/kvm/paging_tmpl.h: In function ‘paging64_walk_addr_generic’: arch/x86/kvm/paging_tmpl.h:124: warning: ‘ptep_user’ may be used uninitialized in this function caused by 6e2ca7d1802bf8ed9908435e34daa116662e7790. According to Takuya Yoshikawa, ptep_user won't be used uninitialized so shut up gcc. Cc: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Link: http://lkml.kernel.org/r/20110530094604.GC21833@liondog.tnic Signed-off-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-06-18x86, efi: Do not reserve boot services regions within reserved areasMaarten Lankhorst
Commit 916f676f8dc started reserving boot service code since some systems require you to keep that code around until SetVirtualAddressMap is called. However, in some cases those areas will overlap with reserved regions. The proper medium-term fix is to fix the bootloader to prevent the conflicts from occurring by moving the kernel to a better position, but the kernel should check for this possibility, and only reserve regions which can be reserved. Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com> Link: http://lkml.kernel.org/r/4DF7A005.1050407@gmail.com Acked-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-06-17msm: timer: compensate for timer shift in msm_read_timer_countJeff Ohlstein
Some msm targets have timers whose lower bits are unreliable. So, we present our timers as lower frequency than they actually are, and ignore the bottom 5 bits on such targets. This compensation was erroneously removed from the msm_read_timer_count function, so restore it. This was broken by 94790ec25 "msm: timer: SMP timer support for msm". Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
2011-06-17Merge branches 'gpio/merge' and 'spi/merge' of ↵Linus Torvalds
git://git.secretlab.ca/git/linux-2.6 * 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6: gpio: add GPIOF_ values regardless on kconfig settings gpio: include linux/gpio.h where needed gpio/omap4: Fix missing interrupts during device wakeup due to IOPAD. * 'spi/merge' of git://git.secretlab.ca/git/linux-2.6: spi/bfin_spi: fix handling of default bits per word setting
2011-06-17Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP1: PM: register notifiers with generic clock ops even when !PM_RUNTIME omap: pandora: fix NAND support OMAP: PM: omap_device: fix device power domain callbacks OMAP: PM debug: fix section mismatch warnings
2011-06-17ARM: 6963/1: Thumb-2: Relax relocation requirements for non-function symbolsDave Martin
The "Thumb bit" of a symbol is only really meaningful for function symbols (STT_FUNC). However, sometimes a branch is relocated against a non-function symbol; for example, PC-relative branches to anonymous assembler local symbols are typically fixed up against the start-of-section symbol, which is not a function symbol. Some inline assembler generates references of this type, such as fixup code generated by macros in <asm/uaccess.h>. The existing relocation code for R_ARM_THM_CALL/R_ARM_THM_JUMP24 interprets this case as an error, because the target symbol appears to be an ARM symbol; but this is really not the case, since the target symbol is just a base in these cases. The addend defines the precise offset to the target location, but since the addend is encoded in a non-interworking Thumb branch instruction, there is no explicit Thumb bit in the addend. Because these instructions never interwork, the implied Thumb bit in the addend is 1, and the destination is Thumb by definition. This patch removes the extraneous Thumb bit check for non-function symbols, enabling modules containing the affected relocation types to be loaded. No modification to the actual relocation code is required, since this code does not take bit[0] of the location->destination offset into account in any case. Function symbols are always checked for interworking conflicts, as before. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-17ARM: 6962/1: mach-h720x: fix build errorLinus Walleij
The h7201/h7202 machines did not build since they define ARM_DMA_ZONE_OFFSET but do not select ZONE_DMA. Fix it up by selecting ZONE_DMA in their Kconfig. Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-17ARM: 6959/1: SMP build fix for entry-macro-multi.SMagnus Damm
The assembly code in entry-macro-multi.S does not build without the include asm/assembler.h in the case of CONFIG_SMP=y. Fixes the rather theoretical SMP build of mach-shmobile/entry-intc.c: arch/arm/include/asm/entry-macro-multi.S: Assembler messages: arch/arm/include/asm/entry-macro-multi.S:20: Error: bad instruction `alt_smp(test_for_ipi r0,r6,r5,lr)' arch/arm/include/asm/entry-macro-multi.S:20: Error: bad instruction `alt_up_b(9997f)' make[1]: *** [arch/arm/mach-shmobile/entry-intc.o] Error 1 make: *** [arch/arm/mach-shmobile] Error 2 make: *** Waiting for unfinished jobs.... Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-16xen/setup: Fix for incorrect xen_extra_mem_start.Konrad Rzeszutek Wilk
The earlier attempts (24bdb0b62cc82120924762ae6bc85afc8c3f2b26) at fixing this problem caused other problems to surface (PV guests with no PCI passthrough would have SWIOTLB turned on - which meant 64MB of precious contingous DMA32 memory being eaten up per guest). The problem was: "on xen we add an extra memory region at the end of the e820, and on this particular machine this extra memory region would start below 4g and cross over the 4g boundary: [0xfee01000-0x192655000) Unfortunately e820_end_of_low_ram_pfn does not expect an e820 layout like that so it returns 4g, therefore initial_memory_mapping will map [0 - 0x100000000), that is a memory range that includes some reserved memory regions." The memory range was the IOAPIC regions, and with the 1-1 mapping turned on, it would map them as RAM, not as MMIO regions. This caused the hypervisor to complain. Fortunately this is experienced only under the initial domain so we guard for it. Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-06-16Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x: sh: sh7724: Add USBHS DMAEngine support sh: ecovec: Add renesas_usbhs support sh, exec: remove redundant set_fs(USER_DS) drivers: sh: resume enabled clocks fix dmaengine: shdma: SH_DMAC_MAX_CHANNELS message fix sh: Fix up xchg/cmpxchg corruption with gUSA RB. sh: Remove compressed kernel libgcc dependency. sh: fix wrong icache/dcache address-array start addr in cache-debugfs.
2011-06-16Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x: ARM: mach-shmobile: mackerel: tidyup usbhs driver settings ARM: mach-shmobile: Correct SCIF port types for SH7367. ARM: mach-shmobile: sh73a0 gic_arch_extn.irq_set_wake() fix ARM: mach-shmobile: Mackerel USB platform data update ARM: mach-shmobile: AG5EVM SDHI1 platform data update
2011-06-16gpio: include linux/gpio.h where neededRandy Dunlap
Some files use GPIOF_ macros but don't include the header file for them. These macros are being moved to <linux/gpio.h>, so add includes for <linux/gpio.h> where needed. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-16sh: sh7724: Add USBHS DMAEngine supportKuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-16sh: ecovec: Add renesas_usbhs supportKuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-15Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: footbridge: fix clock event support ARM: footbridge: fix debug macros ARM: initrd: disable initrds outside of memory ARM: extend Code: line by one 16-bit quantity for Thumb instructions ARM: 6955/1: cmpxchg syscall should data abort if page not write ARM: 6954/1: zImage: fix Thumb2 breakage ARM: 6953/1: DT: don't try to access physical address zero ARM: 6949/2: mach-u300: fix compilaton warning in IO accessors Revert "ARM: 6944/1: mm: allow ASID 0 to be allocated to tasks" Revert "ARM: 6943/1: mm: use TTBR1 instead of reserved context ID" davinci: make PCM platform devices static arm: davinci: Fix fallout from generic irq chip conversion ARM: 6894/1: mmci: trigger card detect IRQs on falling and rising edges ARM: 6952/1: fix lockdep warning of "unannotated irqs-off" ARM: 6951/1: include .bss in memory layout information ARM: 6948/1: Fix .size directives for __arm{7,9}tdmi_proc_info ARM: 6947/2: mach-u300: fix compilation error in timer ARM: 6946/1: vexpress: move v2m clock init to init_early ARM: mx51/sdma: Check the chip revision in run-time arm: mxs: include asm/processor.h for cpu_relax()
2011-06-15alpha: fix several security issuesDan Rosenberg
Fix several security issues in Alpha-specific syscalls. Untested, but mostly trivial. 1. Signedness issue in osf_getdomainname allows copying out-of-bounds kernel memory to userland. 2. Signedness issue in osf_sysinfo allows copying large amounts of kernel memory to userland. 3. Typo (?) in osf_getsysinfo bounds minimum instead of maximum copy size, allowing copying large amounts of kernel memory to userland. 4. Usage of user pointer in osf_wait4 while under KERNEL_DS allows privilege escalation via writing return value of sys_wait4 to kernel memory. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-15rtc: fix build warnings in defconfigsWanlong Gao
RTC_CLASS is changed to bool, so 'm' is invalid. Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-15xen: When calling power_off, don't call the halt function.Tom Goetz
.. As it won't actually power off the machine. Reported-by: Sven Köhler <sven.koehler@gmail.com> Tested-by: Sven Köhler <sven.koehler@gmail.com> Signed-off-by: Tom Goetz <tom.goetz@virtualcomputer.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-06-15xen: support CONFIG_MAXSMPAndrew Jones
The MAXSMP config option requires CPUMASK_OFFSTACK, which in turn requires we init the memory for the maps while we bring up the cpus. MAXSMP also increases NR_CPUS to 4096. This increase in size exposed an issue in the argument construction for multicalls from xen_flush_tlb_others. The args should only need space for the actual number of cpus. Also in 2.6.39 it exposes a bootup problem. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff8157a1d3>] set_cpu_sibling_map+0x123/0x30d ... Call Trace: [<ffffffff81039a3f>] ? xen_restore_fl_direct_reloc+0x4/0x4 [<ffffffff819dc4db>] xen_smp_prepare_cpus+0x36/0x135 .. CC: stable@kernel.org Signed-off-by: Andrew Jones <drjones@redhat.com> [v2: Updated to compile on 3.0] [v3: Updated to compile when CONFIG_SMP is not defined] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-06-15ARM: mach-shmobile: mackerel: tidyup usbhs driver settingsKuninori Morimoto
- usb0 pipe is same as default. own pipe config is not needed - usb1 lost get_id function Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-14x86 idle: APM requires pm_idle/default_idle unconditionally when a moduleAndy Whitcroft
[ Also from Ben Hutchings <ben@decadent.org.uk> and Vitaliy Ivanov <vitalivanov@gmail.com> ] Commit 06ae40ce073d ("x86 idle: EXPORT_SYMBOL(default_idle, pm_idle) only when APM demands it") removed the export for pm_idle/default_idle unless the apm module was modularised and CONFIG_APM_CPU_IDLE was set. But the apm module uses pm_idle/default_idle unconditionally, CONFIG_APM_CPU_IDLE only affects the bios idle threshold. Adjust the export accordingly. [ Used #ifdef instead of #if defined() as it's shorter, and what both Ben and Vitaliy used.. Andy, you're out-voted ;) - Linus ] Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Len Brown <len.brown@intel.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-14Merge branch 'for-linus-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: use kernel processor defines for conditional optimizations m68knommu: create config options for CPU classes m68knommu: fix linker script exported name sections
2011-06-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/avr32-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/avr32-2.6: avr32, exec: remove redundant set_fs(USER_DS) avr32: make intc_resume() return void to conform to syscore_ops avr32: add some more at91 to cpu.h definition avr32: set CONFIG_CC_OPTIMIZE_FOR_SIZE=y for all defconfigs avr32/at32ap: fix mapping of platform device id for USART avr32: fix use of non-existing portnr variable in at32_map_usart()
2011-06-14Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: Compare only lower 32 bits of framebuffer map offsets drm/i915: Don't leak in i915_gem_shmem_pread_slow() drm/radeon/kms: do bounds checking for 3D_LOAD_VBPNTR and bump array limit drm/radeon/kms: fix mac g5 quirk x86/uv/x2apic: update for change in pci bridge handling. alpha, drm: Remove obsolete Alpha support in MGA DRM code alpha/drm: Cleanup Alpha support in DRM generic code savage: remove unnecessary if statement drm/radeon: fix GUI idle IH debug statements drm/radeon/kms: check modes against max pixel clock drm: fix fbs in DRM_IOCTL_MODE_GETRESOURCES ioctl