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2012-10-15Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds106-4493/+2886
Pull MIPS update from Ralf Baechle: "Cleanups and fixes for breakage that occured earlier during this merge phase. Also a few patches that didn't make the first pull request. Of those is the Alchemy work that merges code for many of the SOCs and evaluation boards thus among other code shrinkage, reduces the number of MIPS defconfigs by 5." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (22 commits) MIPS: SNI: Switch RM400 serial to SCCNXP driver MIPS: Remove unused empty_bad_pmd_table[] declaration. MIPS: MT: Remove kspd. MIPS: Malta: Fix section mismatch. MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets. MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code. MIPS: Alchemy: merge PB1550 support into DB1550 code MIPS: Alchemy: Single kernel for DB1200/1300/1550 MIPS: Optimize TLB refill for RI/XI configurations. MIPS: proc: Cleanup printing of ASEs. MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required. MIPS: Add detection of DSP ASE Revision 2. MIPS: Optimize pgd_init and pmd_init MIPS: perf: Add perf functionality for BMIPS5000 MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP MIPS: perf: Remove unnecessary #ifdef MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt) MIPS: perf: Change the "mips_perf_event" table unsupported indicator. MIPS: Align swapper_pg_dir to 64K for better TLB Refill code. vmlinux.lds.h: Allow architectures to add sections to the front of .bss ...
2012-10-15Merge branch 'modules-next' of ↵Linus Torvalds55-312/+245
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module signing support from Rusty Russell: "module signing is the highlight, but it's an all-over David Howells frenzy..." Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG. * 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits) X.509: Fix indefinite length element skip error handling X.509: Convert some printk calls to pr_devel asymmetric keys: fix printk format warning MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking MODSIGN: Make mrproper should remove generated files. MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs MODSIGN: Use the same digest for the autogen key sig as for the module sig MODSIGN: Sign modules during the build process MODSIGN: Provide a script for generating a key ID from an X.509 cert MODSIGN: Implement module signature checking MODSIGN: Provide module signing public keys to the kernel MODSIGN: Automatically generate module signing keys if missing MODSIGN: Provide Kconfig options MODSIGN: Provide gitignore and make clean rules for extra files MODSIGN: Add FIPS policy module: signature checking hook X.509: Add a crypto key parser for binary (DER) X.509 certificates MPILIB: Provide a function to read raw data into an MPI X.509: Add an ASN.1 decoder X.509: Add simple ASN.1 grammar compiler ...
2012-10-14x86, boot: Explicitly include autoconf.h for hostprogsMatt Fleming1-1/+2
The hostprogs need access to the CONFIG_* symbols found in include/generated/autoconf.h. But commit abbf1590de22 ("UAPI: Partition the header include path sets and add uapi/ header directories") replaced $(LINUXINCLUDE) with $(USERINCLUDE) which doesn't contain the necessary include paths. This has the undesirable effect of breaking the EFI boot stub because the #ifdef CONFIG_EFI_STUB code in arch/x86/boot/tools/build.c is never compiled. It should also be noted that because $(USERINCLUDE) isn't exported by the top-level Makefile it's actually empty in arch/x86/boot/Makefile. Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-10-14Merge branch 'late-for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds63-1722/+1800
Pull ARM update from Russell King: "This is the final round of stuff for ARM, left until the end of the merge window to reduce the number of conflicts. This set contains the ARM part of David Howells UAPI changes, and a fix to the ordering of 'select' statements in ARM Kconfig files (see the appropriate commit for why this happened - thanks to Andrew Morton for pointing out the problem.) I've left this as long as I dare for this window to avoid conflicts, and I regenerated the config patch yesterday, posting it to our mailing list for review and testing. I have several acks which include successful test reports for it. However, today I notice we've got new conflicts with previously unseen code... though that conflict should be trivial (it's my changes vs a one liner.)" * 'late-for-linus' of git://git.linaro.org/people/rmk/linux-arm: ARM: config: make sure that platforms are ordered by option string ARM: config: sort select statements alphanumerically UAPI: (Scripted) Disintegrate arch/arm/include/asm Fix up fairly conflict in arch/arm/Kconfig (the select re-organization vs recent addition of GENERIC_KERNEL_EXECVE)
2012-10-13Merge branch 'config' into late-for-linusRussell King39-795/+793
2012-10-13ARM: config: make sure that platforms are ordered by option stringRussell King1-38/+38
The large platform selection choice should be sorted by option string so it's easy to find the platform you're looking for. Fix the few options which are out of this order. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-13ARM: config: sort select statements alphanumericallyRussell King39-767/+765
As suggested by Andrew Morton: This is a pet peeve of mine. Any time there's a long list of items (header file inclusions, kconfig entries, array initalisers, etc) and someone wants to add a new item, they *always* go and stick it at the end of the list. Guys, don't do this. Either put the new item into a randomly-chosen position or, probably better, alphanumerically sort the list. lets sort all our select statements alphanumerically. This commit was created by the following perl: while (<>) { while (/\\\s*$/) { $_ .= <>; } undef %selects if /^\s*config\s+/; if (/^\s+select\s+(\w+).*/) { if (defined($selects{$1})) { if ($selects{$1} eq $_) { print STDERR "Warning: removing duplicated $1 entry\n"; } else { print STDERR "Error: $1 differently selected\n". "\tOld: $selects{$1}\n". "\tNew: $_\n"; exit 1; } } $selects{$1} = $_; next; } if (%selects and (/^\s*$/ or /^\s+help/ or /^\s+---help---/ or /^endif/ or /^endchoice/)) { foreach $k (sort (keys %selects)) { print "$selects{$k}"; } undef %selects; } print; } if (%selects) { foreach $k (sort (keys %selects)) { print "$selects{$k}"; } } It found two duplicates: Warning: removing duplicated S5P_SETUP_MIPIPHY entry Warning: removing duplicated HARDIRQS_SW_RESEND entry and they are identical duplicates, hence the shrinkage in the diffstat of two lines. We have four testers reporting success of this change (Tony, Stephen, Linus and Sekhar.) Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-10-13Merge tag 'disintegrate-openrisc-20121009' of ↵Jonas Bonn11-68/+113
git://git.infradead.org/users/dhowells/linux-headers UAPI Disintegration 2012-10-09 * tag 'disintegrate-openrisc-20121009' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: (Scripted) Disintegrate arch/openrisc/include/asm
2012-10-13Merge tag 'for-3.7' of git://openrisc.net/jonas/linuxLinus Torvalds4-14/+16
Pull OpenRISC updates from Jonas Bonn: "Fixups for some corner cases, build issues, and some obvious bugs in IRQ handling. No major changes." * tag 'for-3.7' of git://openrisc.net/jonas/linux: openrisc: mask interrupts in irq_mask_ack function openrisc: fix typos in comments and warnings openrisc: PIC should act on domain-local irqs openrisc: Make cpu_relax() invoke barrier() audit: define AUDIT_ARCH_OPENRISC openrisc: delay: fix handling of counter overflow openrisc: delay: fix loops calculation for __const_udelay
2012-10-13Merge tag 'disintegrate-misc-arches-20121010' of ↵Linus Torvalds120-1702/+1950
git://git.infradead.org/users/dhowells/linux-headers Pull UAPI disintegration for misc arches from David Howells: "UAPI disintegration for MN10300, FRV and AVR32 arches" * tag 'disintegrate-misc-arches-20121010' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: (Scripted) Disintegrate arch/mn10300/include/asm UAPI: (Scripted) Disintegrate arch/frv/include/asm UAPI: (Scripted) Disintegrate arch/avr32/include/asm
2012-10-13Merge branch 'merge' of ↵Linus Torvalds56-1528/+1705
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc uapi disintegration from Benjamin Herrenschmidt. * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: UAPI: (Scripted) Disintegrate arch/powerpc/include/asm
2012-10-13Merge tag 'arm64-uapi' of ↵Linus Torvalds27-998/+637
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 Pull arm64 uapi disintegration from Catalin Marinas: "UAPI headers for arm64 together with some clean-up to make it possible: - Do not export the COMPAT_* definitions to user - Simplify the compat unistd32.h definitions and remove the __SYSCALL_COMPAT guard - Disintegrate the arch/arm64/include/asm/* headers" * tag 'arm64-uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: UAPI: (Scripted) Disintegrate arch/arm64/include/asm arm64: Do not export the compat-specific definitions to the user arm64: Do not include asm/unistd32.h in asm/unistd.h arm64: Remove unused definitions from asm/unistd32.h
2012-10-13Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds10-146/+171
Pull C6X UAPI disintegration from Mark Salter: - scripted UAPI disintegration by David Howells. * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: UAPI: (Scripted) Disintegrate arch/c6x/include/asm
2012-10-13Merge tag 'for_linus-3.7' of ↵Linus Torvalds2-0/+11
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb Pull KGDB/KDB fixes and cleanups from Jason Wessel: "Cleanups - Clean up compile warnings in kgdboc.c and x86/kernel/kgdb.c - Add module event hooks for simplified debugging with gdb Fixes - Fix kdb to stop paging with 'q' on bta and dmesg - Fix for data that scrolls off the vga console due to line wrapping when using the kdb pager New - The debug core registers for kernel module events which allows a kernel aware gdb to automatically load symbols and break on entry to a kernel module - Allow kgdboc=kdb to setup kdb on the vga console" * tag 'for_linus-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb: tty/console: fix warnings in drivers/tty/serial/kgdboc.c kdb,vt_console: Fix missed data due to pager overruns kdb: Fix dmesg/bta scroll to quit with 'q' kgdboc: Accept either kbd or kdb to activate the vga + keyboard kdb shell kgdb,x86: fix warning about unused variable mips,kgdb: fix recursive page fault with CONFIG_KPROBES kgdb: Add module event hooks
2012-10-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds4-81/+221
Pull Sparc updates from David Miller: 1) Updated syscall tracing fix from Al Viro. 2) SUN4V error reporting was deficient in several areas. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: fix ptrace interaction with force_successful_syscall_return() sparc64: Fix deficiencies in sun4v error reporting.
2012-10-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds43-177/+298
Pull tile arch update from Chris Metcalf: "The bulk of this change is the tile uapi disintegration. There is also a one-line change in here to enable interrupts in do_work_pending() to avoid a WARN_ON in _local_bh_enable_ip()." * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: arch/tile: enable interrupts in do_work_pending() UAPI: (Scripted) Disintegrate arch/tile/include/asm UAPI: (Scripted) Disintegrate arch/tile/include/arch
2012-10-13Merge tag 'please-pull-dhowells-uapi' of ↵Linus Torvalds60-1804/+1961
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux Pull ia64 UAPI changes from Tony Luck: "ia64 pieces of David Howells great UAPI include file move" * tag 'please-pull-dhowells-uapi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: UAPI: (Scripted) Disintegrate arch/ia64/include/asm
2012-10-13Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds7-13/+311
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "This tree includes some late late perf items that missed the first round: tools: - Bash auto completion improvements, now we can auto complete the tools long options, tracepoint event names, etc, from Namhyung Kim. - Look up thread using tid instead of pid in 'perf sched'. - Move global variables into a perf_kvm struct, from David Ahern. - Hists refactorings, preparatory for improved 'diff' command, from Jiri Olsa. - Hists refactorings, preparatory for event group viewieng work, from Namhyung Kim. - Remove double negation on optional feature macro definitions, from Namhyung Kim. - Remove several cases of needless global variables, on most builtins. - misc fixes kernel: - sysfs support for IBS on AMD CPUs, from Robert Richter. - Support for an upcoming Intel CPU, the Xeon-Phi / Knights Corner HPC blade PMU, from Vince Weaver. - misc fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits) perf: Fix perf_cgroup_switch for sw-events perf: Clarify perf_cpu_context::active_pmu usage by renaming it to ::unique_pmu perf/AMD/IBS: Add sysfs support perf hists: Add more helpers for hist entry stat perf hists: Move he->stat.nr_events initialization to a template perf hists: Introduce struct he_stat perf diff: Removing the total_period argument from output code perf tool: Add hpp interface to enable/disable hpp column perf tools: Removing hists pair argument from output path perf hists: Separate overhead and baseline columns perf diff: Refactor diff displacement possition info perf hists: Add struct hists pointer to struct hist_entry perf tools: Complete tracepoint event names perf/x86: Add support for Intel Xeon-Phi Knights Corner PMU perf evlist: Remove some unused methods perf evlist: Introduce add_newtp method perf kvm: Move global variables into a perf_kvm struct perf tools: Convert to BACKTRACE_SUPPORT perf tools: Long option completion support for each subcommands perf tools: Complete long option names of perf command ...
2012-10-13Merge branch 'for-linus' of ↵Linus Torvalds20-180/+90
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull third pile of kernel_execve() patches from Al Viro: "The last bits of infrastructure for kernel_thread() et.al., with alpha/arm/x86 use of those. Plus sanitizing the asm glue and do_notify_resume() on alpha, fixing the "disabled irq while running task_work stuff" breakage there. At that point the rest of kernel_thread/kernel_execve/sys_execve work can be done independently for different architectures. The only pending bits that do depend on having all architectures converted are restrictred to fs/* and kernel/* - that'll obviously have to wait for the next cycle. I thought we'd have to wait for all of them done before we start eliminating the longjump-style insanity in kernel_execve(), but it turned out there's a very simple way to do that without flagday-style changes." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: alpha: switch to saner kernel_execve() semantics arm: switch to saner kernel_execve() semantics x86, um: convert to saner kernel_execve() semantics infrastructure for saner ret_from_kernel_thread semantics make sure that kernel_thread() callbacks call do_exit() themselves make sure that we always have a return path from kernel_execve() ppc: eeh_event should just use kthread_run() don't bother with kernel_thread/kernel_execve for launching linuxrc alpha: get rid of switch_stack argument of do_work_pending() alpha: don't bother passing switch_stack separately from regs alpha: take SIGPENDING/NOTIFY_RESUME loop into signal.c alpha: simplify TIF_NEED_RESCHED handling
2012-10-13Merge branch 'for-linus' of ↵Linus Torvalds27-63/+63
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull third pile of VFS updates from Al Viro: "Stuff from Jeff Layton, mostly. Sanitizing interplay between audit and namei, removing a lot of insanity from audit_inode() mess and getting things ready for his ESTALE patchset." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: procfs: don't need a PATH_MAX allocation to hold a string representation of an int vfs: embed struct filename inside of names_cache allocation if possible audit: make audit_inode take struct filename vfs: make path_openat take a struct filename pointer vfs: turn do_path_lookup into wrapper around struct filename variant audit: allow audit code to satisfy getname requests from its names_list vfs: define struct filename and have getname() return it vfs: unexport getname and putname symbols acct: constify the name arg to acct_on vfs: allocate page instead of names_cache buffer in mount_block_root audit: overhaul __audit_inode_child to accomodate retrying audit: optimize audit_compare_dname_path audit: make audit_compare_dname_path use parent_len helper audit: remove dirlen argument to audit_compare_dname_path audit: set the name_len in audit_inode for parent lookups audit: add a new "type" field to audit_names struct audit: reverse arguments to audit_inode_child audit: no need to walk list in audit_inode if name is NULL audit: pass in dentry to audit_copy_inode wherever possible audit: remove unnecessary NULL ptr checks from do_path_lookup
2012-10-13vfs: define struct filename and have getname() return itJeff Layton27-63/+63
getname() is intended to copy pathname strings from userspace into a kernel buffer. The result is just a string in kernel space. It would however be quite helpful to be able to attach some ancillary info to the string. For instance, we could attach some audit-related info to reduce the amount of audit-related processing needed. When auditing is enabled, we could also call getname() on the string more than once and not need to recopy it from userspace. This patchset converts the getname()/putname() interfaces to return a struct instead of a string. For now, the struct just tracks the string in kernel space and the original userland pointer for it. Later, we'll add other information to the struct as it becomes convenient. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12arch/tile: enable interrupts in do_work_pending()Chris Metcalf1-0/+3
All the called functions expect interrupts to be enabled, and now one of them has started to warn about it, so make it correct. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-10-12Merge tag 'tags/disintegrate-tile-20121009' into for-linusChris Metcalf42-177/+295
UAPI Disintegration 2012-10-09
2012-10-12alpha: switch to saner kernel_execve() semanticsAl Viro3-17/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12arm: switch to saner kernel_execve() semanticsAl Viro4-29/+7
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12x86, um: convert to saner kernel_execve() semanticsAl Viro10-68/+21
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12infrastructure for saner ret_from_kernel_thread semanticsAl Viro1-0/+3
* allow kernel_execve() leave the actual return to userland to caller (selected by CONFIG_GENERIC_KERNEL_EXECVE). Callers updated accordingly. * architecture that does select GENERIC_KERNEL_EXECVE in its Kconfig should have its ret_from_kernel_thread() do this: call schedule_tail call the callback left for it by copy_thread(); if it ever returns, that's because it has just done successful kernel_execve() jump to return from syscall IOW, its only difference from ret_from_fork() is that it does call the callback. * such an architecture should also get rid of ret_from_kernel_execve() and __ARCH_WANT_KERNEL_EXECVE This is the last part of infrastructure patches in that area - from that point on work on different architectures can live independently. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12Merge tag 'stable/for-linus-3.7-rc0-tag' of ↵Linus Torvalds2-1/+58
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen fixes from Konrad Rzeszutek Wilk: "This has four bug-fixes and one tiny feature that I forgot to put initially in my tree due to oversight. The feature is for kdump kernels to speed up the /proc/vmcore reading. There is a ram_is_pfn helper function that the different platforms can register for. We are now doing that. The bug-fixes cover some embarrassing struct pv_cpu_ops variables being set to NULL on Xen (but not baremetal). We had a similar issue in the past with {write|read}_msr_safe and this fills the three missing ones. The other bug-fix is to make the console output (hvc) be capable of dealing with misbehaving backends and not fall flat on its face. Lastly, a quirk for older XenBus implementations that came with an ancient v3.4 hypervisor (so RHEL5 based) - reading of certain non-existent attributes just hangs the guest during bootup - so we take precaution of not doing that on such older installations. Feature: - Register a pfn_is_ram helper to speed up reading of /proc/vmcore. Bug-fixes: - Three pvops call for Xen were undefined causing BUG_ONs. - Add a quirk so that the shutdown watches (used by kdump) are not used with older Xen (3.4). - Fix ungraceful state transition for the HVC console." * tag 'stable/for-linus-3.7-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/pv-on-hvm kexec: add quirk for Xen 3.4 and shutdown watches. xen/bootup: allow {read|write}_cr8 pvops call. xen/bootup: allow read_tscp call for Xen PV guests. xen pv-on-hvm: add pfn_is_ram helper for kdump xen/hvc: handle backend CLOSED without CLOSING
2012-10-12Merge branch 'timers-core-for-linus' of ↵Linus Torvalds10-39/+57
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer core update from Thomas Gleixner: - Bug fixes (one for a longstanding dead loop issue) - Rework of time related vsyscalls - Alarm timer updates - Jiffies updates to remove compile time dependencies * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timekeeping: Cast raw_interval to u64 to avoid shift overflow timers: Fix endless looping between cascade() and internal_add_timer() time/jiffies: bring back unconditional LATCH definition time: Convert x86_64 to using new update_vsyscall time: Only do nanosecond rounding on GENERIC_TIME_VSYSCALL_OLD systems time: Introduce new GENERIC_TIME_VSYSCALL time: Convert CONFIG_GENERIC_TIME_VSYSCALL to CONFIG_GENERIC_TIME_VSYSCALL_OLD time: Move update_vsyscall definitions to timekeeper_internal.h time: Move timekeeper structure to timekeeper_internal.h for vsyscall changes jiffies: Remove compile time assumptions about CLOCK_TICK_RATE jiffies: Kill unused TICK_USEC_TO_NSEC alarmtimer: Rename alarmtimer_remove to alarmtimer_dequeue alarmtimer: Remove unused helpers & defines alarmtimer: Use hrtimer per-alarm instead of per-base alarmtimer: Implement minimum alarm interval for allowing suspend
2012-10-12xen/bootup: allow {read|write}_cr8 pvops call.Konrad Rzeszutek Wilk1-1/+15
We actually do not do anything about it. Just return a default value of zero and if the kernel tries to write anything but 0 we BUG_ON. This fixes the case when an user tries to suspend the machine and it blows up in save_processor_state b/c 'read_cr8' is set to NULL and we get: kernel BUG at /home/konrad/ssd/linux/arch/x86/include/asm/paravirt.h:100! invalid opcode: 0000 [#1] SMP Pid: 2687, comm: init.late Tainted: G O 3.6.0upstream-00002-gac264ac-dirty #4 Bochs Bochs RIP: e030:[<ffffffff814d5f42>] [<ffffffff814d5f42>] save_processor_state+0x212/0x270 .. snip.. Call Trace: [<ffffffff810733bf>] do_suspend_lowlevel+0xf/0xac [<ffffffff8107330c>] ? x86_acpi_suspend_lowlevel+0x10c/0x150 [<ffffffff81342ee2>] acpi_suspend_enter+0x57/0xd5 CC: stable@vger.kernel.org Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-12xen/bootup: allow read_tscp call for Xen PV guests.Konrad Rzeszutek Wilk1-0/+2
The hypervisor will trap it. However without this patch, we would crash as the .read_tscp is set to NULL. This patch fixes it and sets it to the native_read_tscp call. CC: stable@vger.kernel.org Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-10-12UAPI: (Scripted) Disintegrate arch/arm/include/asmDavid Howells24-926/+1006
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>
2012-10-12kgdb,x86: fix warning about unused variableJason Wessel1-0/+2
When compiling without CONFIG_DEBUG_RODATA the following compiler warning is generated: arch/x86/kernel/kgdb.c: In function 'kgdb_arch_set_breakpoint': arch/x86/kernel/kgdb.c:749: warning: unused variable 'opc' The variable instantiation needs to be inside the #ifdef to make the warning go away. Reported-by: Thiago Rafael Becker <trbecker@trbecker.org> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2012-10-12mips,kgdb: fix recursive page fault with CONFIG_KPROBESJason Wessel1-0/+9
This fault was detected using the kgdb test suite on boot and it crashes recursively due to the fact that CONFIG_KPROBES on mips adds an extra die notifier in the page fault handler. The crash signature looks like this: kgdbts:RUN bad memory access test KGDB: re-enter exception: ALL breakpoints killed Call Trace: [<807b7548>] dump_stack+0x20/0x54 [<807b7548>] dump_stack+0x20/0x54 The fix for now is to have kgdb return immediately if the fault type is DIE_PAGE_FAULT and allow the kprobe code to decide what is supposed to happen. Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David S. Miller <davem@davemloft.net> Cc: <stable@vger.kernel.org> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2012-10-12Merge branch 'v4l_for_linus' of ↵Linus Torvalds13-69/+473
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull second set of media updates from Mauro Carvalho Chehab: "Despite its size, most of the stuff here is trivial. This series contains: - s5p-mfc: additions at the driver and at the core to support H.264 hardware codec; - Some improvements at s5p and davinci embedded drivers; - Some V4L2 compliance fixes applied on a few drivers; - Several random trivial patches, including several fixes and a few new board support additions; Notes: 1) Some Exynos media patches were dependent on some -arm fixes that got merged on changeset 782cd9e. That's why this pull request is based that changeset. 2) As promised, I reviewed the pending VB2 DMABUF series. While setting a test environment, it was noticed that the upstream support for Samsung Exynos 4 boards (smdk310 and Origen) are broken upstream, likely due to regressions: both defconfigs are wrong and regulator settings for both boards are broken. That, allied with some bug at the dummy regulator driver, causes OOPSes during boot time. Long story short: even fixing the above, the proposed patches OOPSed when running the DMABUF test. Not sure yet if the OOPSes are due to some other undetected regressions, or due to some bug on the patches. Due to the above, DMABUF patches for vb2 got NACKed for 3.7." * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (109 commits) [media] m5mols: Add missing #include <linux/sizes.h> [media] stk1160: Add support for S-Video input Revert "[media] omap3isp: Replace cpu_is_omap3630() with ISP revision check" [media] dvb: LNA implementation changes [media] v4l2-ioctl: fix W=1 warnings [media] v4l2-ioctl: add blocks check for VIDIOC_SUBDEV_G/S_EDID [media] omap3isp: Fix compilation error in ispreg.h [media] rc-msi-digivox-ii: Add full scan keycodes [media] cx25821: testing the wrong variable [media] tda18271-common: hold the I2C adapter during write transfers [media] ds3000: add module parameter to force firmware upload [media] drivers/media: Remove unnecessary semicolon [media] winbond: remove space from driver name [media] iguanair: cannot send data from the stack [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check [media] dvb-usb: print small buffers via %*ph [media] uvc: Add return code check at vb2_queue_init() [media] em28xx: Replace memcpy with struct assignment [media] bt8xx: Add video4linux control V4L2_CID_COLOR_KILLER [media] mem2mem_testdev: Use devm_kzalloc() in probe ... Conflicts: arch/arm/mach-davinci/include/mach/da8xx.h
2012-10-12Merge tag 'pinctrl-for-3.7-late' of ↵Linus Torvalds2-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull second set of pinctrl patches from Linus Walleij: "Here is a late pinctrl pull request with stuff that wasn't quite tested at the first pull request. The main reason to not hold off is that the modifications to irq_domain_add_simple() as reviewed by Rob Herring introduce new infrastructure for irqdomains that will be useful for the next cycle: instead of sprinkling irq descriptor allocation all over the kernel wherever a "legacy" domain is registered, which is necessary for any platform using sparse IRQs, and many irq chips are say GPIO controllers which may be used with several systems, some with sparse IRQs some not, we push this into the irq_domain_add_simple() so we can atleast do mistakes in one place. The irq_domain_add_simple() is currently unused in the kernel, so I need to provide a user. The Nomadik stuff that goes with are changes to the driver I use day-to-day to make use of this facility (and a dependency), so see it as a way to eat my own dogfood: if this blows up the egg hits my face. A second round of pinctrl patches for v3.7: - Complement the Nomadik pinctrl driver with alternate Cx functions so it handles all oddities. - A patch to the IRQdomain to reform the simple irqdomain to handle IRQ descriptor allocation dynamically. - Use the above feature in the Nomadik pin controller." * tag 'pinctrl-for-3.7-late' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl/nomadik: use simple or linear IRQ domain irqdomain: augment add_simple() to allocate descs pinctrl/nomadik: support other alternate-C functions
2012-10-12Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds40-22/+602
Pull second set of ARM updates from Russell King: "This is the second set of ARM updates for this merge window. Contained within are changes to allow the kernel to boot in hypervisor mode on CPUs supporting virtualization, and cache flushing support to the point of inner sharable unification, which are used by the suspend/resume code to avoid having to do a full cache flush. Also included is one fix for VFP code identified by Michael Olbrich." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: ARM: vfp: fix saving d16-d31 vfp registers on v6+ kernels ARM: 7549/1: HYP: fix boot on some ARM1136 cores ARM: 7542/1: mm: fix cache LoUIS API for xscale and feroceon ARM: mm: update __v7_setup() to the new LoUIS cache maintenance API ARM: kernel: update __cpu_disable to use cache LoUIS maintenance API ARM: kernel: update cpu_suspend code to use cache LoUIS operations ARM: mm: rename jump labels in v7_flush_dcache_all function ARM: mm: implement LoUIS API for cache maintenance ops ARM: virt: arch_timers: enable access to physical timers ARM: virt: Add CONFIG_ARM_VIRT_EXT option ARM: virt: Add boot-time diagnostics ARM: virt: Update documentation for hyp mode entry support ARM: zImage/virt: hyp mode entry support for the zImage loader ARM: virt: allow the kernel to be entered in HYP mode ARM: opcodes: add __ERET/__MSR_ELR_HYP instruction encoding
2012-10-12Merge branch 'for-linus' of ↵Linus Torvalds98-881/+343
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull pile 2 of execve and kernel_thread unification work from Al Viro: "Stuff in there: kernel_thread/kernel_execve/sys_execve conversions for several more architectures plus assorted signal fixes and cleanups. There'll be more (in particular, real fixes for the alpha do_notify_resume() irq mess)..." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (43 commits) alpha: don't open-code trace_report_syscall_{enter,exit} Uninclude linux/freezer.h m32r: trim masks avr32: trim masks tile: don't bother with SIGTRAP in setup_frame microblaze: don't bother with SIGTRAP in setup_rt_frame() mn10300: don't bother with SIGTRAP in setup_frame() frv: no need to raise SIGTRAP in setup_frame() x86: get rid of duplicate code in case of CONFIG_VM86 unicore32: remove pointless test h8300: trim _TIF_WORK_MASK parisc: decide whether to go to slow path (tracesys) based on thread flags parisc: don't bother looping in do_signal() parisc: fix double restarts bury the rest of TIF_IRET sanitize tsk_is_polling() bury _TIF_RESTORE_SIGMASK unicore32: unobfuscate _TIF_WORK_MASK mips: NOTIFY_RESUME is not needed in TIF masks mips: merge the identical "return from syscall" per-ABI code ... Conflicts: arch/arm/include/asm/thread_info.h
2012-10-12ppc: eeh_event should just use kthread_run()Al Viro1-3/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12alpha: get rid of switch_stack argument of do_work_pending()Al Viro2-23/+20
... and now the asm glue side of that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12alpha: don't bother passing switch_stack separately from regsAl Viro1-13/+13
It's needed only in setup_sigcontext() and it's always reg - <constant>; no point passing it all way down through the call chain. This is just the signal.c side of that stuff; next will come the asm glue one... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12alpha: take SIGPENDING/NOTIFY_RESUME loop into signal.cAl Viro2-17/+20
Turn the slow side of work_pending into C function, including all the looping. What we get out of that: * we do _not_ call get_signal_to_deliver() with IRQs disabled anymore * no need to save/restore volatiles on each pass if there turns to be more than one (unlikely, but still) * all double-restart prevention is in C now. * glue gets simpler. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12alpha: simplify TIF_NEED_RESCHED handlingAl Viro1-17/+9
In case we have both NEED_RESCHED and SIGPENDING/NOTIFY_RESUME, handle the latter first. We'll get to original priorities in the next commit, but now that allows to simplify the treatment of NEED_RESCHED-only case nicely. Namely, now there no need to preserve the data for restarts across the call of schedule() in $work_resched; we can get there only if we had either returned from syscall without SIGPENDING (in which case we should've had no restart-worthy return value and want no restarts) or already got through do_notify_resume() call (in which case we want no restarts anymore). So we can just slap 0 into $19 instead of preserving it (and $20). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-10-12Merge tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6Linus Torvalds28-681/+32
Pull fbdev updates from Florian Tobias Schandinat: "This includes: - large updates for OMAP - basic OMAP5 DSS support for DPI and DSI outputs - large cleanups and restructuring - some update to Exynos and da8xx-fb - removal of the pnx4008 driver (arch removed) - various other small patches" Fix up some trivial conflicts (mostly just include line changes, but also some due to the renaming of the deferred work functions by Tejun). * tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6: (193 commits) gbefb: fix compile error video: mark nuc900fb_map_video_memory as __devinit video/mx3fb: set .owner to prevent module unloading while being used video: exynos_dp: use clk_prepare_enable and clk_disable_unprepare drivers/video/exynos/exynos_mipi_dsi.c: fix error return code drivers/video/savage/savagefb_driver.c: fix error return code video: s3c-fb: use clk_prepare_enable and clk_disable_unprepare da8xx-fb: save and restore LCDC context across suspend/resume cycle da8xx-fb: add pm_runtime support video/udlfb: fix line counting in fb_write OMAPDSS: add missing include for string.h OMAPDSS: DISPC: Configure color conversion coefficients for writeback OMAPDSS: DISPC: Add manager like functions for writeback OMAPDSS: DISPC: Configure writeback FIFOs OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup() OMAPDSS: DISPC: Configure overlay-like parameters in dispc_wb_setup OMAPDSS: DISPC: Add function to set channel in for writeback OMAPDSS: DISPC: Don't set chroma resampling bit for writeback OMAPDSS: DISPC: Downscale chroma if plane is writeback OMAPDSS: DISPC: Configure input and output sizes for writeback ...
2012-10-11Merge branch 'staging/for_v3.7' into v4l_for_linusMauro Carvalho Chehab13-69/+473
Applied on the top of changeset 782cd9e, as some of those patches depend on some fixes that went via -arm tree. * staging/for_v3.7: (109 commits) [media] m5mols: Add missing #include <linux/sizes.h> [media] stk1160: Add support for S-Video input Revert "[media] omap3isp: Replace cpu_is_omap3630() with ISP revision check" [media] dvb: LNA implementation changes [media] v4l2-ioctl: fix W=1 warnings [media] v4l2-ioctl: add blocks check for VIDIOC_SUBDEV_G/S_EDID [media] omap3isp: Fix compilation error in ispreg.h [media] rc-msi-digivox-ii: Add full scan keycodes [media] cx25821: testing the wrong variable [media] tda18271-common: hold the I2C adapter during write transfers [media] ds3000: add module parameter to force firmware upload [media] drivers/media: Remove unnecessary semicolon [media] winbond: remove space from driver name [media] iguanair: cannot send data from the stack [media] omap3isp: Replace cpu_is_omap3630() with ISP revision check [media] dvb-usb: print small buffers via %*ph [media] uvc: Add return code check at vb2_queue_init() [media] em28xx: Replace memcpy with struct assignment [media] bt8xx: Add video4linux control V4L2_CID_COLOR_KILLER [media] mem2mem_testdev: Use devm_kzalloc() in probe ...
2012-10-11UAPI: (Scripted) Disintegrate arch/arm64/include/asmDavid Howells21-132/+225
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>
2012-10-11Merge branch 'fixes' into for-linusRussell King2640-75139/+84809
Conflicts: arch/arm/kernel/smp.c
2012-10-11arm64: Do not export the compat-specific definitions to the userCatalin Marinas3-7/+13
This patch adds #ifdef __KERNEL__ guards around the COMPAT_* definitions to avoid exporting them to user. AArch32 user requiring the kernel headers must use those generated with ARCH=arm. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Will Deacon <will.deacon@arm.com>
2012-10-11arm64: Do not include asm/unistd32.h in asm/unistd.hCatalin Marinas6-29/+15
This patch only includes asm/unistd32.h where necessary and removes its inclusion in the asm/unistd.h file. The __SYSCALL_COMPAT guard is dropped. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Will Deacon <will.deacon@arm.com>
2012-10-11arm64: Remove unused definitions from asm/unistd32.hCatalin Marinas3-839/+393
This patch removes the compat __NR_* definitions from the unistd32.h file and only keeps those that are used by the AArch64 kernel with a new __NR_compat_* prefix. The additional wrapper definitions in arch/arm64/kernel/sys32.S have been removed and the actual wrapper names included in the asm/unistd32.h file. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Will Deacon <will.deacon@arm.com>