- 13 Oct, 2012 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
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 ...
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Markus Trippelsdorf authored
Perf build fails with the new rbtree implementation: ../../lib/rbtree.c:24:36: fatal error: linux/rbtree_augmented.h: No such file or directory compilation terminated. Fix by updating the Makefile and adding a btree_augmented.h wrapper. Reported-and-tested-by: Borislav Petkov <borislav.petkov@amd.com> Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@amd64.org> Link: http://lkml.kernel.org/r/20121009180156.GA245@x4Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/signalLinus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
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
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Jeff Layton authored
Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
In the common case where a name is much smaller than PATH_MAX, an extra allocation for struct filename is unnecessary. Before allocating a separate one, try to embed the struct filename inside the buffer first. If it turns out that that's not long enough, then fall back to allocating a separate struct filename and redoing the copy. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
Keep a pointer to the audit_names "slot" in struct filename. Have all of the audit_inode callers pass a struct filename ponter to audit_inode instead of a string pointer. If the aname field is already populated, then we can skip walking the list altogether and just use it directly. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
...and fix up the callers. For do_file_open_root, just declare a struct filename on the stack and fill out the .name field. For do_filp_open, make it also take a struct filename pointer, and fix up its callers to call it appropriately. For filp_open, add a variant that takes a struct filename pointer and turn filp_open into a wrapper around it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
...and make the user_path callers use that variant instead. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
Currently, if we call getname() on a userland string more than once, we'll get multiple copies of the string and multiple audit_names records. Add a function that will allow the audit_names code to satisfy getname requests using info from the audit_names list, avoiding a new allocation and audit_names records. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
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>
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- 12 Oct, 2012 29 commits
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
* 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>
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Linus Torvalds authored
Merge tag 'stable/for-linus-3.7-rc0-tag' of 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
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linuxLinus Torvalds authored
Pull SLAB fix from Pekka Enberg: "This contains a lockdep false positive fix from Jiri Kosina I missed from the previous pull request." * 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: mm, slab: release slab_mutex earlier in kmem_cache_destroy()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
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
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Ingo Molnar: "A CPU hotplug related crash fix and a nohz accounting fixlet." * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Update sched_domains_numa_masks[][] when new cpus are onlined sched: Ensure 'sched_domains_numa_levels' is safe to use in other functions nohz: Fix one jiffy count too far in idle cputime
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RCU fixes from Ingo Molnar: "This tree includes a shutdown/cpu-hotplug deadlock fix and a documentation fix." * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rcu: Advise most users not to enable RCU user mode rcu: Grace-period initialization excludes only RCU notifier
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Konrad Rzeszutek Wilk authored
The commit 254d1a3f, titled "xen/pv-on-hvm kexec: shutdown watches from old kernel" assumes that the XenBus backend can deal with reading of values from: "control/platform-feature-xs_reset_watches": ... a patch for xenstored is required so that it accepts the XS_RESET_WATCHES request from a client (see changeset 23839:42a45baf037d in xen-unstable.hg). Without the patch for xenstored the registration of watches will fail and some features of a PVonHVM guest are not available. The guest is still able to boot, but repeated kexec boots will fail." Sadly this is not true when using a Xen 3.4 hypervisor and booting a PVHVM guest. We end up hanging at: err = xenbus_scanf(XBT_NIL, "control", "platform-feature-xs_reset_watches", "%d", &supported); This can easily be seen with guests hanging at xenbus_init: NX (Execute Disable) protection: active SMBIOS 2.4 present. DMI: Xen HVM domU, BIOS 3.4.0 05/13/2011 Hypervisor detected: Xen HVM Xen version 3.4. Xen Platform PCI: I/O protocol version 1 ... snip .. calling xenbus_init+0x0/0x27e @ 1 Reverting the commit or using the attached patch fixes the issue. This fix checks whether the hypervisor is older than 4.0 and if so does not try to perform the read. Fixes-Oracle-Bug: 14708233 CC: stable@vger.kernel.org Acked-by: Olaf Hering <olaf@aepfle.de> [v2: Added a comment in the source code] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Konrad Rzeszutek Wilk authored
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>
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Konrad Rzeszutek Wilk authored
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>
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Ingo Molnar authored
Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU fixes from Paul E. McKenney. Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Jeff Layton authored
I see no callers in module code. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
First, it's incorrect to call putname() after __getname_gfp() since the bare __getname_gfp() call skips the auditing code, while putname() doesn't. mount_block_root allocates a PATH_MAX buffer via __getname_gfp, and then calls get_fs_names to fill the buffer. That function can call get_filesystem_list which assumes that that buffer is a full page in size. On arches where PAGE_SIZE != 4k, then this could potentially overrun. In practice, it's hard to imagine the list of filesystem names even approaching 4k, but it's best to be safe. Just allocate a page for this purpose instead. With this, we can also remove the __getname_gfp() definition since there are no more callers. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
In order to accomodate retrying path-based syscalls, we need to add a new "type" argument to audit_inode_child. This will tell us whether we're looking for a child entry that represents a create or a delete. If we find a parent, don't automatically assume that we need to create a new entry. Instead, use the information we have to try to find an existing entry first. Update it if one is found and create a new one if not. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
In the cases where we already know the length of the parent, pass it as a parm so we don't need to recompute it. In the cases where we don't know the length, pass in AUDIT_NAME_FULL (-1) to indicate that it should be determined. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Eric Paris authored
Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
All the callers set this to NULL now. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
Currently, this gets set mostly by happenstance when we call into audit_inode_child. While that might be a little more efficient, it seems wrong. If the syscall ends up failing before audit_inode_child ever gets called, then you'll have an audit_names record that shows the full path but has the parent inode info attached. Fix this by passing in a parent flag when we call audit_inode that gets set to the value of LOOKUP_PARENT. We can then fix up the pathname for the audit entry correctly from the get-go. While we're at it, clean up the no-op macro for audit_inode in the !CONFIG_AUDITSYSCALL case. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
For now, we just have two possibilities: UNKNOWN: for a new audit_names record that we don't know anything about yet NORMAL: for everything else In later patches, we'll add other types so we can distinguish and update records created under different circumstances. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
Most of the callers get called with an inode and dentry in the reverse order. The compiler then has to reshuffle the arg registers and/or stack in order to pass them on to audit_inode_child. Reverse those arguments for a micro-optimization. Reported-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
If name is NULL then the condition in the loop will never be true. Also, with this change, we can eliminate the check for n->name == NULL since the equivalence check will never be true if it is. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
In some cases, we were passing in NULL even when we have a dentry. Reported-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Jeff Layton authored
As best I can tell, whenever retval == 0, nd->path.dentry and nd->inode are also non-NULL. Eliminate those checks and the superfluous audit_context check. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
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 782cd9ee. 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
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Linus Torvalds authored
Merge tag 'pinctrl-for-3.7-late' of 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
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git://git.linaro.org/people/rmk/linux-armLinus Torvalds authored
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
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