this patch adds a dormant flag to network devices, RFC2863 operstate derived
from these flags and possibility for userspace interaction. It allows drivers
to signal that a device is unusable for user traffic without disabling
queueing (and therefore the possibility for protocol establishment traffic to
flow) and a userspace supplicant (WPA, 802.1X) to mark a device unusable
without changes to the driver.

It is the result of our long discussion. However I must admit that it
represents what Jamal and I agreed on with compromises towards Krzysztof, but
Thomas and Krzysztof still disagree with some parts. Anyway I think it should
be applied.
Signed-off-by: NStefan Rompf <stefan@loplof.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

It is possible to get redirects from nexthop of "more-specific"
routes.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Check RTF_ADDRCONF|RTF_DEFAULT in rt6_get_dflt_router().
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

And prepare for more advanced router selection.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This controls whether we accept Prefix Information in RAs.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This controls whether we accept default router information
in RAs.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

RFC 3041 describes an algorithm to generate random interface
identifier.  In RFC 3041bis, it is allowed to use different
algorithm than one described in RFC 3041.

So, let's use our standard pseudo random algorithm to simplify
our implementation.
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Since addrconf_add_dev() has already called addrconf_add_mroute()
to added route for multicast prefix, there's no point to call it
again in addrconf_ip6_tnl_config().
Signed-off-by: NYOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (230 commits)
  [SPARC64]: Update defconfig.
  [SPARC64]: Fix 2 bugs in huge page support.
  [SPARC64]: CONFIG_BLK_DEV_RAM fix
  [SPARC64]: Optimized TSB table initialization.
  [SPARC64]: Allow CONFIG_MEMORY_HOTPLUG to build.
  [SPARC64]: Use SLAB caches for TSB tables.
  [SPARC64]: Don't kill the page allocator when growing a TSB.
  [SPARC64]: Randomize mm->mmap_base when PF_RANDOMIZE is set.
  [SPARC64]: Increase top of 32-bit process stack.
  [SPARC64]: Top-down address space allocation for 32-bit tasks.
  [SPARC64] bbc_i2c: Fix cpu check and add missing module license.
  [SPARC64]: Fix and re-enable dynamic TSB sizing.
  [SUNSU]: Fix missing spinlock initialization.
  [TG3]: Do not try to access NIC_SRAM_DATA_SIG on Sun parts.
  [SPARC64]: First cut at VIS simulator for Niagara.
  [SPARC64]: Fix system type in /proc/cpuinfo and remove bogus OBP check.
  [SPARC64]: Add SMT scheduling support for Niagara.
  [SPARC64]: Fix 32-bit truncation which broke sparsemem.
  [SPARC64]: Move over to sparsemem.
  [SPARC64]: Fix new context version SMP handling.
  ...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  JFS: add uid, gid, and umask mount options
  JFS: Take logsync lock before testing mp->lsn
  JFS: kzalloc conversion
  JFS: Add missing file from fa3241d2
  JFS: Use the kthread_ API
  JFS: Fix regression.  fsck complains if symlinks do not have INLINEEA attribute
  JFS: ext2 inode attributes for jfs
  JFS: semaphore to mutex conversion.
  JFS: make buddy table static
  JFS: Add back directory i_size calculations for legacy partitions

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (150 commits)
  [PATCH] ipw2100: Update version ipw2100 stamp to 1.2.2
  [PATCH] ipw2100: move mutex.h include from ipw2100.c to ipw2100.h
  [PATCH] ipw2100: semaphore to mutexes conversion
  [PATCH] ipw2100: Fix radiotap code gcc warning
  [PATCH] ipw2100: add radiotap headers to packtes captured in monitor mode
  [PATCH] ipw2x00: expend Copyright to 2006
  [PATCH] drivers/net/wireless/ipw2200.c: fix an array overun
  [PATCH] ieee80211: Don't update network statistics from off-channel packets.
  [PATCH] ipw2200: Update ipw2200 version stamp to 1.1.1
  [PATCH] ipw2200: switch to the new ipw2200-fw-3.0 image format
  [PATCH] ipw2200: wireless extension sensitivity threshold support
  [PATCH] ipw2200: Enables the "slow diversity" algorithm
  [PATCH] ipw2200: Set a meaningful silence threshold value
  [PATCH] ipw2200: export `debug' module param only if CONFIG_IPW2200_DEBUG
  [PATCH] ipw2200: Change debug level for firmware error logging
  [PATCH] ipw2200: Filter unsupported channels out in ad-hoc mode
  [PATCH] ipw2200: Fix ipw_sw_reset() implementation inconsistent with comment
  [PATCH] ipw2200: Fix rf_kill is activated after mode change with 'disable=1'
  [PATCH] ipw2200: remove the WPA card associates to non-WPA AP checking
  [PATCH] ipw2200: Add signal level to iwlist scan output
  ...

* 'block-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/block:
  [PATCH] fix rmmod problems with elevator attributes, clean them up
  [PATCH] elevator_t lifetime rules and sysfs fixes
  [PATCH] noise removal: cfq-iosched.c
  [PATCH] don't bother with refcounting for cfq_data
  [PATCH] fix sysfs interaction and lifetime rules handling for queues
  [PATCH] regularize blk_cleanup_queue() use
  [PATCH] fix cfq_get_queue()/ioprio_set(2) races
  [PATCH] deal with rmmod/put_io_context() races
  [PATCH] stop elv_unregister() from rogering other iosched's data, fix locking
  [PATCH] stop cfq from pinning queue down
  [PATCH] make cfq_exit_queue() prune the cfq_io_context for that queue
  [PATCH] fix the exclusion for ioprio_set()
  [PATCH] keep sync and async cfq_queue separate
  [PATCH] switch to use of ->key to get cfq_data by cfq_io_context
  [PATCH] stop leaking cfq_data in cfq_set_request()
  [PATCH] fix cfq hash lookups
  [PATCH] fix locking in queue_requests_store()
  [PATCH] fix double-free in blk_init_queue_node()
  [PATCH] don't do exit_io_context() until we know we won't be doing any IO

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

1) huge_pte_offset() did not check the page table hierarchy
   elements as being empty correctly, resulting in an OOPS

2) Need platform specific hugetlb_get_unmapped_area() to handle
   the top-down vs. bottom-up address space allocation strategies.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

init/do_mounts_rd.c depends upon CONFIG_BLK_DEV_RAM, not CONFIG_BLK_DEV_INITRD.
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

We only need to write an invalid tag every 16 bytes,
so taking advantage of this can save many instructions
compared to the simple memset() call we make now.

A prefetching implementation is implemented for sun4u
and a block-init store version if implemented for Niagara.

The next trick is to be able to perform an init and
a copy_tsb() in parallel when growing a TSB table.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

online_page() is straightforward, and then add a dummy
remove_memory() that returns -EINVAL just like i386.

There is no point in implementing remove_memory() since
__remove_pages() has no implementation either.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>