[ 3897.923145] BUG: unable to handle kernel NULL pointer dereference at
0000000000000080
[ 3897.931025] IP: [<ffffffffa9f27686>] reqsk_timer_handler+0x1a6/0x243
There is a race when reqsk_timer_handler() and tcp_check_req() call
inet_csk_reqsk_queue_unlink() on the same req at the same time.
Before commit fa76ce7328 ("inet: get rid of central tcp/dccp listener
timer"), listener spinlock was held and race could not happen.
To solve this bug, we change reqsk_queue_unlink() to not assume req
must be found, and we return a status, to conditionally release a
refcount on the request sock.
This also means tcp_check_req() in non fastopen case might or not
consume req refcount, so tcp_v6_hnd_req() & tcp_v4_hnd_req() have
to properly handle this.
(Same remark for dccp_check_req() and its callers)
inet_csk_reqsk_queue_drop() is now too big to be inlined, as it is
called 4 times in tcp and 3 times in dccp.
Fixes: fa76ce7328 ("inet: get rid of central tcp/dccp listener timer")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The conversion of mac80211's station table to rhashtable had a bug
that I found by accident in code review, that hadn't been found as
rhashtable apparently managed to have a maximum hash chain length
of one (!) in all our testing.
In order to test the bug and verify the fix I set my rhashtable's
max_size very low (4) in order to force getting hash collisions.
At that point, rhashtable WARNed in rhashtable_insert_rehash() but
didn't actually reject the hash table insertion. This caused it to
lose insertions - my master list of stations would have 9 entries,
but the rhashtable only had 5. This may warrant a deeper look, but
that WARN_ON() just shouldn't happen.
Fix this by not returning true from rht_grow_above_100() when the
rhashtable's max_size has been reached - in this case the user is
explicitly configuring it to be at most that big, so even if it's
now above 100% it shouldn't attempt to resize.
This fixes the "lost insertion" issue and consequently allows my
code to display its error (and verify my fix for it.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
After d75b1ade56 ("net: less interrupt masking in NAPI") polling
function has to return whole budget when it wants NAPI to call it again.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: Felix Fietkau <nbd@openwrt.org>
Fixes: eb64e2923a ("bgmac: leave interrupts disabled as long as there is work to do")
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Presence of an unbound loop in tcp_send_fin() had always been hard
to explain when analyzing crash dumps involving gigantic dying processes
with millions of sockets.
Lets try a different strategy :
In case of memory pressure, try to add the FIN flag to last packet
in write queue, even if packet was already sent. TCP stack will
be able to deliver this FIN after a timeout event. Note that this
FIN being delivered by a retransmit, it also carries a Push flag
given our current implementation.
By checking sk_under_memory_pressure(), we anticipate that cooking
many FIN packets might deplete tcp memory.
In the case we could not allocate a packet, even with __GFP_WAIT
allocation, then not sending a FIN seems quite reasonable if it allows
to get rid of this socket, free memory, and not block the process from
eventually doing other useful work.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This driver already uses ioremap_wc() on the same range
so when write-combining is available that will be used
instead.
Cc: Hyong-Youb Kim <hykim@myri.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Suresh Siddha <sbsiddha@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Juergen Gross <jgross@suse.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: netdev@vger.kernel.org
Cc: Juergen Gross <jgross@suse.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-kernel@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If NO_DMA=y:
drivers/built-in.o: In function `grcan_free_dma_buffers':
grcan.c:(.text+0x2d7716): undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `grcan_allocate_dma_buffers':
grcan.c:(.text+0x2d779c): undefined reference to `dma_alloc_coherent'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If NO_DMA=y:
drivers/built-in.o: In function `arc_emac_tx_clean':
emac_main.c:(.text+0x2decde): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `arc_emac_rx':
emac_main.c:(.text+0x2dee1c): undefined reference to `dma_unmap_single'
emac_main.c:(.text+0x2dee72): undefined reference to `dma_map_single'
emac_main.c:(.text+0x2dee7e): undefined reference to `dma_mapping_error'
drivers/built-in.o: In function `arc_emac_probe':
(.text+0x2df2ee): undefined reference to `dmam_alloc_coherent'
drivers/built-in.o: In function `arc_emac_open':
emac_main.c:(.text+0x2df6d8): undefined reference to `dma_map_single'
emac_main.c:(.text+0x2df6e4): undefined reference to `dma_mapping_error'
drivers/built-in.o: In function `arc_emac_tx':
emac_main.c:(.text+0x2df9e4): undefined reference to `dma_map_single'
emac_main.c:(.text+0x2df9f0): undefined reference to `dma_mapping_error'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
If NO_DMA=y:
drivers/built-in.o: In function `xgbe_probe':
xgbe-main.c:(.text+0x2def0a): undefined reference to `dma_set_mask'
xgbe-main.c:(.text+0x2def20): undefined reference to `dma_supported'
drivers/built-in.o: In function `xgbe_rx_poll':
xgbe-drv.c:(.text+0x2e0320): undefined reference to `dma_sync_single_for_cpu'
xgbe-drv.c:(.text+0x2e035e): undefined reference to `dma_sync_single_for_cpu'
drivers/built-in.o: In function `xgbe_unmap_rdata':
xgbe-desc.c:(.text+0x2e5fe4): undefined reference to `dma_unmap_page'
xgbe-desc.c:(.text+0x2e5ffa): undefined reference to `dma_unmap_single'
xgbe-desc.c:(.text+0x2e604a): undefined reference to `dma_unmap_page'
xgbe-desc.c:(.text+0x2e6084): undefined reference to `dma_unmap_page'
drivers/built-in.o: In function `xgbe_alloc_pages':
xgbe-desc.c:(.text+0x2e6156): undefined reference to `dma_map_page'
xgbe-desc.c:(.text+0x2e6164): undefined reference to `dma_mapping_error'
drivers/built-in.o: In function `xgbe_free_ring':
xgbe-desc.c:(.text+0x2e63d4): undefined reference to `dma_unmap_page'
xgbe-desc.c:(.text+0x2e640e): undefined reference to `dma_unmap_page'
xgbe-desc.c:(.text+0x2e644a): undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `xgbe_init_ring':
xgbe-desc.c:(.text+0x2e64d4): undefined reference to `dma_alloc_coherent'
drivers/built-in.o: In function `xgbe_map_tx_skb':
xgbe-desc.c:(.text+0x2e6628): undefined reference to `dma_map_single'
xgbe-desc.c:(.text+0x2e6638): undefined reference to `dma_mapping_error'
xgbe-desc.c:(.text+0x2e66b2): undefined reference to `dma_map_single'
xgbe-desc.c:(.text+0x2e66c2): undefined reference to `dma_mapping_error'
xgbe-desc.c:(.text+0x2e6762): undefined reference to `dma_map_page'
xgbe-desc.c:(.text+0x2e6772): undefined reference to `dma_mapping_error'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
fixed several comment and whitespace style issues
Signed-off-by: Jason Eastman <eastman.jason.linux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Maloy says:
====================
tipc: three bug fixes
A set of unrelated corrections; one for the tipc netns implementation,
one regarding problems with random link resets, and one removing a
an erroneous refcount decrement when reading link statistsics via
netlink.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When link statistics is dumped over netlink, we iterate over
the list of peer nodes and append each links statistics to
the netlink msg. In the case where the dump is resumed after
filling up a nlmsg, the node refcnt is decremented without
having been incremented previously which may cause the node
reference to be freed. When this happens, the following
info/stacktrace will be generated, followed by a crash or
undefined behavior.
We fix this by removing the erroneous call to tipc_node_put
inside the loop that iterates over nodes.
[ 384.312303] INFO: trying to register non-static key.
[ 384.313110] the code is fine but needs lockdep annotation.
[ 384.313290] turning off the locking correctness validator.
[ 384.313290] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.0.0+ #13
[ 384.313290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 384.313290] ffff88003c6d0290 ffff88003cc03ca8 ffffffff8170adf1 0000000000000007
[ 384.313290] ffffffff82728730 ffff88003cc03d38 ffffffff810a6a6d 00000000001d7200
[ 384.313290] ffff88003c6d0ab0 ffff88003cc03ce8 0000000000000285 0000000000000001
[ 384.313290] Call Trace:
[ 384.313290] <IRQ> [<ffffffff8170adf1>] dump_stack+0x4c/0x65
[ 384.313290] [<ffffffff810a6a6d>] __lock_acquire+0xf3d/0xf50
[ 384.313290] [<ffffffff810a7375>] lock_acquire+0xd5/0x290
[ 384.313290] [<ffffffffa0043e8c>] ? link_timeout+0x1c/0x170 [tipc]
[ 384.313290] [<ffffffffa0043e70>] ? link_state_event+0x4e0/0x4e0 [tipc]
[ 384.313290] [<ffffffff81712890>] _raw_spin_lock_bh+0x40/0x80
[ 384.313290] [<ffffffffa0043e8c>] ? link_timeout+0x1c/0x170 [tipc]
[ 384.313290] [<ffffffffa0043e8c>] link_timeout+0x1c/0x170 [tipc]
[ 384.313290] [<ffffffff810c4698>] call_timer_fn+0xb8/0x490
[ 384.313290] [<ffffffff810c45e0>] ? process_timeout+0x10/0x10
[ 384.313290] [<ffffffff810c5a2c>] run_timer_softirq+0x21c/0x420
[ 384.313290] [<ffffffffa0043e70>] ? link_state_event+0x4e0/0x4e0 [tipc]
[ 384.313290] [<ffffffff8105a954>] __do_softirq+0xf4/0x630
[ 384.313290] [<ffffffff8105afdd>] irq_exit+0x5d/0x60
[ 384.313290] [<ffffffff8103ade1>] smp_apic_timer_interrupt+0x41/0x50
[ 384.313290] [<ffffffff817144a0>] apic_timer_interrupt+0x70/0x80
[ 384.313290] <EOI> [<ffffffff8100db10>] ? default_idle+0x20/0x210
[ 384.313290] [<ffffffff8100db0e>] ? default_idle+0x1e/0x210
[ 384.313290] [<ffffffff8100e61a>] arch_cpu_idle+0xa/0x10
[ 384.313290] [<ffffffff81099803>] cpu_startup_entry+0x2c3/0x530
[ 384.313290] [<ffffffff810d2893>] ? clockevents_register_device+0x113/0x200
[ 384.313290] [<ffffffff81038b0f>] start_secondary+0x13f/0x170
Fixes: 8a0f6ebe84 ("tipc: involve reference counter for node structure")
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the function tipc_sk_rcv(), the stack variable 'err'
is only initialized to TIPC_ERR_NO_PORT for the first
iteration over the link input queue. If a chain of messages
are received from a link, failure to lookup the socket for
any but the first message will cause the message to bounce back
out on a random link.
We fix this by properly initializing err.
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a new topology server is launched in a new namespace, its
listening socket is inserted into the "init ns" namespace's socket
hash table rather than the one owned by the new namespace. Although
the socket's namespace is forcedly changed to the new namespace later,
the socket is still stored in the socket hash table of "init ns"
namespace. When a client created in the new namespace connects
its own topology server, the connection is failed as its server's
socket could not be found from its own namespace's socket table.
If __sock_create() instead of original sock_create_kern() is used
to create the server's socket through specifying an expected namesapce,
the socket will be inserted into the specified namespace's socket
table, thereby avoiding to the topology server broken issue.
Fixes: 76100a8a64 ("tipc: fix netns refcnt leak")
Reported-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
AFAIK the PAPR document which defines the virtual device interface used by
the ibmveth driver doesn't specify a specific maximum MTU. So, in the
ibmveth driver, the maximum allowed MTU is determined by the maximum
allocated buffer size of 64k (corresponding to one page in the common case)
minus the per-buffer overhead IBMVETH_BUFF_OH (which has value 22 for 14
bytes of ethernet header, plus 8 bytes for an opaque handle).
This suggests a maximum allowable MTU of 65514 bytes, but in fact the
driver only permits a maximum MTU of 65513. This is because there is a <
instead of an <= in ibmveth_change_mtu(), which only permits an MTU which
is strictly smaller than the buffer size, rather than allowing the buffer
to be completely filled.
This patch fixes the buglet.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With the CPU iteration variable called 'i', it's relatively easy
to have variable shadowing which sparse will warn about. Avoid
that by renaming the variable to __cpu which is less likely to
be used in the surrounding context.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The return value of vxlan_fdb_replace always is greater than or equal to 0
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In 02c958dd3 (net/macb: add TX multiqueue support for gem), the
initialization of tx_head and tx_tail in macb_init_rings() was moved
inside the loop that iterates over each element in the ring. Since
tx_head and tx_tail only need to be assigned once, move them back out of
the loop.
Signed-off-by: Ben Shelton <ben.shelton@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
build_skb() should look at the page pfmemalloc status.
If set, this means page allocator allocated this page in the
expectation it would help to free other pages. Networking
stack can do that only if skb->pfmemalloc is also set.
Also, we must refrain using high order pages from the pfmemalloc
reserve, so __page_frag_refill() must also use __GFP_NOMEMALLOC for
them. Under memory pressure, using order-0 pages is probably the best
strategy.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The code there just open-codes the same, so use the provided macro instead.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Robert Shearman says:
====================
mpls: ABI changes for security and correctness
V2:
- don't treat loopback interfaces specially by enabling mpls by
default
These changes make mpls not be enabled by default on all
interfaces when in use for security, along with ensuring that a label
not valid as an outgoing label can be added in mpls routes.
This series contains three ABI/behaviour-affecting changes which have
been split out from "[PATCH net-next v4 0/6] mpls: Behaviour-changing
improvements" without any further modification. These changes need to
be considered for 4.1 otherwise we'll be stuck with the current
behaviour/ABI forever.
====================
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The reserved implicit-NULL label isn't allowed to appear in the label
stack for packets, so make it an error for the control plane to
specify it as an outgoing label.
Suggested-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
An MPLS network is a single trust domain where the edges must be in
control of what labels make their way into the core. The simplest way
of ensuring this is for the edge device to always impose the labels,
and not allow forward labeled traffic from untrusted neighbours. This
is achieved by allowing a per-device configuration of whether MPLS
traffic input from that interface should be processed or not.
To be secure by default, the default state is changed to MPLS being
disabled on all interfaces unless explicitly enabled and no global
option is provided to change the default. Whilst this differs from
other protocols (e.g. IPv6), network operators are used to explicitly
enabling MPLS forwarding on interfaces, and with the number of links
to the MPLS core typically fairly low this doesn't present too much of
a burden on operators.
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add per-device MPLS state to supported interfaces. Use the presence of
this state in mpls_route_add to determine that this is a supported
interface.
Use the presence of mpls_dev to drop packets that arrived on an
unsupported interface - previously they were allowed through.
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On some feature changes, driver employes an inner-reload flow where it
resets the function and re-configures it with the new required set of
parameters.
Such a flow proves fatal to any VF since those were not intended to be used
while HW is being reset underneath, causing them [at best] to lose all
connectivity.
This changes driver behavior to fail all configuration changes [e.g., mtu
change] requested of the driver in case VFs are active.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf says:
====================
rhashtable rehashing fixes
Some rhashtable rehashing bugs found while testing with the
next rhashtable self-test queued up for the next devel cycle:
https://github.com/tgraf/net-next/commits/rht
v2:
- Moved schedule_work() call into rhashtable_insert_rehash()
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The current code currently only stops inserting rehashes into the
chain when no resizes are currently scheduled. As long as resizes
are scheduled and while inserting above the utilization watermark,
more and more rehashes will be scheduled.
This lead to a perfect DoS storm with thousands of rehashes
scheduled which lead to thousands of spinlocks to be taken
sequentially.
Instead, only allow either a series of resizes or a single rehash.
Drop any further rehashes and return -EBUSY.
Fixes: ccd57b1bd3 ("rhashtable: Add immediate rehash during insertion")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
When rhashtable_insert_rehash() fails with ENOMEM, this indicates that
we can't allocate the necessary memory in the current context but the
limits as set by the user would still allow to grow.
Thus attempt an async resize in the background where we can allocate
using GFP_KERNEL which is more likely to succeed. The insertion itself
will still fail to indicate pressure.
This fixes a bug where the table would never continue growing once the
utilization is above 100%.
Fixes: ccd57b1bd3 ("rhashtable: Add immediate rehash during insertion")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Using sk_stream_alloc_skb() in tcp_send_fin() is dangerous in
case a huge process is killed by OOM, and tcp_mem[2] is hit.
To be able to free memory we need to make progress, so this
patch allows FIN packets to not care about tcp_mem[2], if
skb allocation succeeded.
In a follow-up patch, we might abort tcp_send_fin() infinite loop
in case TIF_MEMDIE is set on this thread, as memory allocator
did its best getting extra memory already.
This patch reverts d22e153718 ("tcp: fix tcp fin memory accounting")
Fixes: d22e153718 ("tcp: fix tcp fin memory accounting")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
HSU_DMA is selected by the HSU_DMA_PCI driver, this should be user selected
so remove the user prompt for this
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We were expecting to sit on this branch through most of the merge window since
the contents was merged into our tree late, but we ended up sitting on all of
our contents so it can go in with the rest.
The contents here is:
- A large branch of cleanups of the CM/PRM blocks on OMAP.
- A couple of patches plumbing up CM/PRM on OMAP5 and DRA7.
- A branch with DT updates for Freescale i.MX. including some shuffling from
.dts to .dtsi (include) files that causes a little churn.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late changes from Olof Johansson:
"We were expecting to sit on this branch through most of the merge
window since the contents was merged into our tree late, but we ended
up sitting on all of our contents so it can go in with the rest.
The contents here is:
- a large branch of cleanups of the CM/PRM blocks on OMAP.
- a couple of patches plumbing up CM/PRM on OMAP5 and DRA7.
- a branch with DT updates for Freescale i.MX. including some
shuffling from .dts to .dtsi (include) files that causes a little
churn"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (78 commits)
ARM: OMAP2+: Fix booting with configs that don't have MFD_SYSCON
ARM: OMAP4+: control: add support for initializing control module via DT
ARM: dts: dra7: add minimal l4 bus layout with control module support
ARM: dts: omap5: add minimal l4 bus layout with control module support
ARM: OMAP4+: control: remove support for legacy pad read/write
ARM: OMAP4: display: convert display to use syscon for dsi muxing
ARM: dts: omap4: add minimal l4 bus layout with control module support
ARM: dts: am4372: add minimal l4 bus layout with control module support
ARM: dts: am43xx-epos-evm: fix pinmux node layout
ARM: dts: am33xx: add minimal l4 bus layout with control module support
ARM: dts: omap3: add minimal l4 bus layout with control module support
ARM: dts: omap24xx: add minimal l4 bus layout with control module support
ARM: OMAP2+: control: add syscon support for register accesses
ARM: OMAP2+: id: cache omap_type value
ARM: OMAP2+: control: remove API for getting control module base address
ARM: OMAP2+: clock: add low-level support for regmap
ARM: OMAP4+: PRM: get rid of cpu_is_omap44xx calls from interrupt init
ARM: OMAP4+: PRM: setup prm_features from the PRM init time flags
ARM: OMAP2+: CM: move SoC specific init calls within a generic API
ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility
...
We keep collecting defconfig updates in a separate branch mostly to encourage
people to handle them separately and avoid conflicts between different topics.
Most of these are enablement of new drivers that have come in, or minor config
refreshes due to reorderings in Kconfig files, etc. I.e. mostly minor churn
of various kinds.
We might start folding this branch into something else for upstream merge
since it's so small, but keep it independent in our own tree for the above
reasons.
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Merge tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC defconfig updates from Olof Johansson:
"We keep collecting defconfig updates in a separate branch mostly to
encourage people to handle them separately and avoid conflicts between
different topics.
Most of these are enablement of new drivers that have come in, or
minor config refreshes due to reorderings in Kconfig files, etc. I.e.
mostly minor churn of various kinds.
We might start folding this branch into something else for upstream
merge since it's so small, but keep it independent in our own tree for
the above reasons"
* tag 'armsoc-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
ARM: multi_v7_defconfig: enable alpine platform
ARM: multi_v7_defconfig: Add gpio-restart driver
ARM: multi_v7_defconfig: Build the Marvell WiFi-Ex driver as a module
ARM: multi_v7_defconfig: Enable support for ELAN i2c trackpads
ARM: multi_v7_defconfig: Enable Tegra ACTMON support
ARM: configs: remove all CONFIG_RCAR_AUDMAC_PP from ARM defconfigs
ARM: configs: enable Marvell Armada 39x in multi_v7_defconfig
ARM: exynos_defconfig: Enable HDMI support
ARM: exynos_defconfig: Enable options to mount a rootfs via NFS
ARM: qcom: Increase MMC_BLOCK_MINORS in defconfig
ARM: mvebu: Enable perf support in mvebu_v7_defconfig
ARM: exynos_defconfig: Enable ChromeOS EC chardev driver
ARM: exynos_defconfig: Enable CPU idle
ARM: exynos_defconfig: Enable Marvell WiFi-Ex support
arm: qcom: Update defconfig
arm: qcom: Enable lpass clock driver in defconfig
ARM: omap2plus_defconfig: Enable n900 modem as loadable modules
ARM: omap2plus_defconfig: Update bluetooth options
ARM: omap2plus_defconfig: Enable leds-pwm
ARM: omap1_defconfig: drop obsolete Kconfig symbols
...
The changes here belong to two main platforms:
- Atmel At91 is flipping the bit and going multiplatform. This includes some
cleanups and removal of code, and the final flip of config dependencies
- Shmobile has several platforms that are going multiplatform, but this
branch also contains a bunch of cleanups that they weren't able to keep
separate in a good way. THere's also a removal of one of their SoCs and the
corresponding boards (sh7372 and mackerel).
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Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform code changes from Olof Johansson:
"The changes here belong to two main platforms:
- Atmel At91 is flipping the bit and going multiplatform. This
includes some cleanups and removal of code, and the final flip of
config dependencies
- Shmobile has several platforms that are going multiplatform, but
this branch also contains a bunch of cleanups that they weren't
able to keep separate in a good way. THere's also a removal of one
of their SoCs and the corresponding boards (sh7372 and mackerel)"
* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (67 commits)
ARM: at91/pm: move AT91_MEMCTRL_* to pm.h
ARM: at91/pm: move the standby functions to pm.c
ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected
ARM: at91: add a Kconfig dependency on multi-platform
ARM: at91: drop AT91_TIMER_HZ
ARM: at91: remove hardware.h
ARM: at91: remove SoC headers
ARM: at91: remove useless mach/cpu.h
ARM: at91: remove unused headers
ARM: at91: switch at91_dt_defconfig to multiplatform
ARM: at91: switch to multiplatform
ARM: shmobile: r8a7778: enable multiplatform target
ARM: shmobile: bockw: add sound to DT
ARM: shmobile: r8a7778: add sound to DT
ARM: shmobile: bockw: add devices hooked up to i2c0 to DT
DT: i2c: add trivial binding for OKI ML86V7667 video decoder
ARM: shmobile: r8a7778: common clock framework CPG driver
ARM: shmobile: bockw dts: set extal clock frequency
ARM: shmobile: bockw dts: Move Ethernet node to BSC
ARM: shmobile: r8a73a4: Remove legacy code
...
Driver updates for v4.1. Some of these are for drivers/soc, where we find more
and more SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
The larger parts of this branch are:
- MediaTek support for their PMIC wrapper interface, a high-level interface
for talking to the system PMIC over a dedicated I2C interface.
- Qualcomm SCM driver has been moved to drivers/firmware. It's used for CPU
up/down and needs to be in a shared location for arm/arm64 common code.
- Cleanup of ARM-CCI PMU code.
- Anoter set of cleanusp to the OMAP GPMC code.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for v4.1. Some of these are for drivers/soc, where we
find more and more SoC-specific drivers these days. Some are for
other driver subsystems where we have received acks from the
appropriate maintainers.
The larger parts of this branch are:
- MediaTek support for their PMIC wrapper interface, a high-level
interface for talking to the system PMIC over a dedicated I2C
interface.
- Qualcomm SCM driver has been moved to drivers/firmware. It's used
for CPU up/down and needs to be in a shared location for arm/arm64
common code.
- cleanup of ARM-CCI PMU code.
- another set of cleanusp to the OMAP GPMC code"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
soc/mediatek: Remove unused variables
clocksource: atmel-st: select MFD_SYSCON
soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs
arm-cci: Fix CCI PMU event validation
arm-cci: Split the code for PMU vs driver support
arm-cci: Get rid of secure transactions for PMU driver
arm-cci: Abstract the CCI400 PMU specific definitions
arm-cci: Rearrange code for splitting PMU vs driver code
drivers: cci: reject groups spanning multiple HW PMUs
ARM: at91: remove useless include
clocksource: atmel-st: remove mach/hardware dependency
clocksource: atmel-st: use syscon/regmap
ARM: at91: time: move the system timer driver to drivers/clocksource
ARM: at91: properly initialize timer
ARM: at91: at91rm9200: remove deprecated arm_pm_restart
watchdog: at91rm9200: implement restart handler
watchdog: at91rm9200: use the system timer syscon
mfd: syscon: Add atmel system timer registers definition
ARM: at91/dt: declare atmel,at91rm9200-st as a syscon
soc: qcom: gsbi: Add support for ADM CRCI muxing
...
As always, this tends to be one of our bigger branches. There are lots of
updates this release, but not that many jumps out as something that needs
more detailed coverage. Some of the highlights are:
- DTs for the new Annapurna Labs Alpine platform
- More graphics DT pieces falling into place on Exynos, bridges, clocks.
- Plenty of DT updates for Qualcomm platforms for various IP blocks
- Some churn on Tegra due to switch-over to tool-generated pinctrl data
- Misc fixes and updates for Atmel at91 platforms
- Various DT updates to add IP block support on Broadcom's Cygnus platforms
- More updates for Renesas platforms as DT support is added for various IP
blocks (IPMMU, display, audio, etc).
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM DT updates from Olof Johansson:
"As always, this tends to be one of our bigger branches. There are
lots of updates this release, but not that many jumps out as something
that needs more detailed coverage. Some of the highlights are:
- DTs for the new Annapurna Labs Alpine platform
- more graphics DT pieces falling into place on Exynos, bridges,
clocks.
- plenty of DT updates for Qualcomm platforms for various IP blocks
- some churn on Tegra due to switch-over to tool-generated pinctrl
data
- misc fixes and updates for Atmel at91 platforms
- various DT updates to add IP block support on Broadcom's Cygnus
platforms
- more updates for Renesas platforms as DT support is added for
various IP blocks (IPMMU, display, audio, etc)"
* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (231 commits)
ARM: dts: alpine: add internal pci
Revert "ARM: dts: mt8135: Add pinctrl/GPIO/EINT node for mt8135."
ARM: mvebu: use 0xf1000000 as internal registers on Armada 370 DB
ARM: dts: qcom: Add idle state device nodes for 8064
ARM: dts: qcom: Add idle states device nodes for 8084
ARM: dts: qcom: Add idle states device nodes for 8974/8074
ARM: dts: qcom: Update power-controller device node for 8064 Krait CPUs
ARM: dts: qcom: Add power-controller device node for 8084 Krait CPUs
ARM: dts: qcom: Add power-controller device node for 8074 Krait CPUs
devicetree: bindings: Document qcom,idle-states
devicetree: bindings: Update qcom,saw2 node bindings
dt-bindings: Add #defines for MSM8916 clocks and resets
arm: dts: qcom: Add LPASS Audio HW to IPQ8064 device tree
arm: dts: qcom: Add APQ8084 chipset SPMI PMIC's nodes
arm: dts: qcom: Add 8x74 chipset SPMI PMIC's nodes
arm: dts: qcom: Add SPMI PMIC Arbiter nodes for APQ8084 and MSM8974
arm: dts: qcom: Add LCC nodes
arm: dts: qcom: Add TCSR support for MSM8960
arm: dts: qcom: Add TCSR support for MSM8660
arm: dts: qcom: Add TCSR support for IPQ8064
...
Our SoC branch usually contains expanded support for new SoCs and other core
platform code. In this case, that includes:
- Support for the new Annapurna Labs "Alpine" platform
- A rework greatly simplifying adding new platform support to the MCPM
subsystem (Multi-cluster power management)
- Cpuidle and PM improvements for Exynos3250
- Misc updates for Renesas, OMAP, Meson, i.MX. Some of these could have
gone in other branches but ended up here for various reasons.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Olof Johansson:
"Our SoC branch usually contains expanded support for new SoCs and
other core platform code. In this case, that includes:
- support for the new Annapurna Labs "Alpine" platform
- a rework greatly simplifying adding new platform support to the
MCPM subsystem (Multi-cluster power management)
- cpuidle and PM improvements for Exynos3250
- misc updates for Renesas, OMAP, Meson, i.MX. Some of these could
have gone in other branches but ended up here for various reasons"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
ARM: alpine: add support for generic pci
ARM: Exynos: migrate DCSCB to the new MCPM backend abstraction
ARM: vexpress: migrate DCSCB to the new MCPM backend abstraction
ARM: vexpress: DCSCB: tighten CPU validity assertion
ARM: vexpress: migrate TC2 to the new MCPM backend abstraction
ARM: MCPM: move the algorithmic complexity to the core code
ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC
ARM: EXYNOS: add AFTR mode support for Exynos3250
ARM: EXYNOS: add code for setting/clearing boot flag
ARM: EXYNOS: fix CPU1 hotplug on Exynos3250
ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
ARM: cygnus: fix const declaration bcm_cygnus_dt_compat
ARM: DRA7: hwmod: Fix the hwmod class for GPTimer4
ARM: DRA7: hwmod: Add data for GPTimers 13 through 16
ARM: EXYNOS: Remove left over 'extra_save'
ARM: EXYNOS: Constify exynos_pm_data array
ARM: EXYNOS: use static in suspend.c
ARM: EXYNOS: Use platform device name as power domain name
ARM: EXYNOS: add support for async-bridge clocks for pm_domains
ARM: omap-device: add missed callback for suspend-to-disk
...
We've got a fairly large cleanup branch this time. The bulk of this is removal
of non-DT platforms of several flavors:
- Atmel at91 platforms go full-DT, with removal of remaining board-file based
support
- OMAP removes legacy board files for three more platforms
- Removal of non-DT mach-msm, newer Qualcomm platforms now live in mach-qcom
- Freescale i.MX25 also removes non-DT platform support
Most of the rest of the changes here are fallout from the above, i.e. for
example removal of drivers that now lack platforms, etc.
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"We've got a fairly large cleanup branch this time. The bulk of this
is removal of non-DT platforms of several flavors:
- Atmel at91 platforms go full-DT, with removal of remaining
board-file based support
- OMAP removes legacy board files for three more platforms
- removal of non-DT mach-msm, newer Qualcomm platforms now live in
mach-qcom
- Freescale i.MX25 also removes non-DT platform support"
Most of the rest of the changes here are fallout from the above, i.e. for
example removal of drivers that now lack platforms, etc.
* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits)
mmc: Remove msm_sdcc driver
gpio: Remove gpio-msm-v1 driver
ARM: Remove mach-msm and associated ARM architecture code
ARM: shmobile: cpuidle: Remove the pointless default driver
ARM: davinci: dm646x: Add interrupt resource for McASPs
ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x
ARM: davinci: dm646x: Clean up the McASP DMA resources
ARM: davinci: devices-da8xx: Add support for McASP2 on da830
ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation
ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs
ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request
ARM: OMAP2+: Remove legacy support for omap3 TouchBook
ARM: OMAP3: Remove legacy support for devkit8000
ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board
ARM: shmobile: Consolidate the pm code for R-Car Gen2
ARM: shmobile: r8a7791: Correct SYSCIER value
ARM: shmobile: r8a7790: Correct SYSCIER value
ARM: at91: remove old setup
ARM: at91: sama5d4: remove useless map_io
ARM: at91: sama5 use SoC detection infrastructure
...
Here's the usual "low-priority fixes that didn't make it into the last
few -rcs, with a twist: We had a fixes pull request that I didn't send
in time to get into 4.0, so we'll send some of them to Greg for -stable as
well.
Contents here is as usual not all that controversial:
- A handful of randconfig fixes from Arnd, in particular for older Samsung
platforms
- Exynos fixes, !SMP building, DTS updates for MMC and lid switch
- Kbuild fix to create output subdirectory for DTB files
- Misc minor fixes for OMAP
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Here's the usual "low-priority fixes that didn't make it into the last
few -rcs, with a twist: We had a fixes pull request that I didn't send
in time to get into 4.0, so we'll send some of them to Greg for
-stable as well.
Contents here is as usual not all that controversial:
- a handful of randconfig fixes from Arnd, in particular for older
Samsung platforms
- Exynos fixes, !SMP building, DTS updates for MMC and lid switch
- Kbuild fix to create output subdirectory for DTB files
- misc minor fixes for OMAP"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
ARM: at91/dt: sama5d3 xplained: add phy address for macb1
kbuild: Create directory for target DTB
ARM: mvebu: Disable CPU Idle on Armada 38x
ARM: DRA7: Enable Cortex A15 errata 798181
ARM: dts: am57xx-beagle-x15: Add thermal map to include fan and tmp102
ARM: dts: DRA7: Add bandgap and related thermal nodes
bus: ocp2scp: SYNC2 value should be changed to 0x6
ARM: dts: am4372: Add "ti,am437x-ocp2scp" as compatible string for OCP2SCP
ARM: OMAP2+: remove superfluous NULL pointer check
ARM: EXYNOS: Fix build breakage cpuidle on !SMP
ARM: dts: fix lid and power pin-functions for exynos5250-spring
ARM: dts: fix mmc node updates for exynos5250-spring
ARM: OMAP4: remove dead kconfig option OMAP4_ERRATA_I688
MAINTAINERS: add OMAP defconfigs under OMAP SUPPORT
ARM: OMAP1: PM: fix some build warnings on 1510-only Kconfigs
ARM: cns3xxx: don't export static symbol
ARM: S3C24XX: avoid a Kconfig warning
ARM: S3C24XX: fix header file inclusions
ARM: S3C24XX: fix building without PM_SLEEP
ARM: S3C24XX: use SAMSUNG_WAKEMASK for s3c2416
...
Pull sparc fixes from David Miller:
1) ldc_alloc_exp_dring() can be called from softints, so use
GFP_ATOMIC. From Sowmini Varadhan.
2) Some minor warning/build fixups for the new iommu-common code on
certain archs and with certain debug options enabled. Also from
Sowmini Varadhan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Use GFP_ATOMIC in ldc_alloc_exp_dring() as it can be called in softirq context
sparc64: Use M7 PMC write on all chips T4 and onward.
iommu-common: rename iommu_pool_hash to iommu_hash_common
iommu-common: fix x86_64 compiler warnings
Pull networking fixes from David Miller:
"Just a few fixes trickling in at this point.
1) If we see an attached socket on an skb in the ipv4 forwarding path,
bail. This can happen due to races with FIB rule addition, and
deletion, and we should just drop such frames. From Sebastian
Pöhn.
2) pppoe receive should only accept packets destined for this hosts's
MAC address. From Joakim Tjernlund.
3) Handle checksum unwrapping properly in ppp receive properly when
it's encapsulated in UDP in some way, fix from Tom Herbert.
4) Fix some bugs in mv88e6xxx DSA driver resulting from the conversion
from register offset constants to mnenomic macros. From Vivien
Didelot.
5) Fix handling of HCA max message size in mlx4 adapters, from Eran
Ben ELisha"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net/mlx4_core: Fix reading HCA max message size in mlx4_QUERY_DEV_CAP
tcp: add memory barriers to write space paths
altera tse: Error-Bit on tx-avalon-stream always set.
net: dsa: mv88e6xxx: use PORT_DEFAULT_VLAN
net: dsa: mv88e6xxx: fix setup of port control 1
ppp: call skb_checksum_complete_unset in ppp_receive_frame
net: add skb_checksum_complete_unset
pppoe: Lacks DST MAC address check
ip_forward: Drop frames with attached skb->sk
.config files that do not have MFD_SYSCON set.
Omaps now have a dependency to MFD_SYSCON for system control
module generic register area and some clocks with the changes
done in omap-for-v4.1/prcm-dts branch.
This can be pulled on top of omap-for-v4.1/prcm-dts, or into
fixes for v4.1.
We already do have a slight MFD_SYSCON dependency for
REGULATOR_PBIAS for dual voltage MMC cards on the first MMC
bus for many devices, so from that point of view this can
also be merged separately from omap-for-v4.1/prcm-dts.
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Merge tag 'omap-for-v4.1/prcm-dts-mfd-syscon-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/late
Merge "urgent omap boot fix for v4.1 if MFD_SYSCON is not set" from Tony
Lindgren:
Urgent pull request for v4.1 to booting for custom kernel
.config files that do not have MFD_SYSCON set.
Omaps now have a dependency to MFD_SYSCON for system control
module generic register area and some clocks with the changes
done in omap-for-v4.1/prcm-dts branch.
This can be pulled on top of omap-for-v4.1/prcm-dts, or into
fixes for v4.1.
We already do have a slight MFD_SYSCON dependency for
REGULATOR_PBIAS for dual voltage MMC cards on the first MMC
bus for many devices, so from that point of view this can
also be merged separately from omap-for-v4.1/prcm-dts.
* tag 'omap-for-v4.1/prcm-dts-mfd-syscon-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix booting with configs that don't have MFD_SYSCON
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull parisc fixes from Helge Deller:
"The patch by Guenter Roeck fixes the build on parisc which got broken
because of commit f24ffde432 ("parisc: expose number of page table
levels on Kconfig level") and the patch from Matthew Wilcox converts
our code to use the generic scatterlist.h header file"
* 'parisc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Replace PT_NLEVELS with CONFIG_PGTABLE_LEVELS
parisc: Eliminate sg_virt_addr() and private scatterlist.h
Currently we parse max_msg_sz from the wrong offset in QUERY_DEV_CAP,
fix to use the right offset.
Fixes: 0b131561a7 ('net/mlx4_en: Add Flow control statistics [..]')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since it is possible for vnet_event_napi to end up doing
vnet_control_pkt_engine -> ... -> vnet_send_attr ->
vnet_port_alloc_tx_ring -> ldc_alloc_exp_dring -> kzalloc()
(i.e., in softirq context), kzalloc() should be called with
GFP_ATOMIC from ldc_alloc_exp_dring.
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
They both work equally well, and the M7 implementation is
simpler and cheaper (less register writes).
With help from David Ahern.
Signed-off-by: David S. Miller <davem@davemloft.net>
The following warning is seen when compiling parisc images
./arch/parisc/include/asm/pgalloc.h: In function 'pgd_alloc':
./arch/parisc/include/asm/pgalloc.h:29:5: warning: "PT_NLEVELS" is not defined
Some definitions of PT_NLEVELS were missed with the conversion to
CONFIG_PGTABLE_LEVELS.
Fixes: f24ffde432 ("parisc: expose number of page table levels
on Kconfig level")
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Helge Deller <deller@gmx.de>
The only reason to keep parisc's private asm/scatterlist.h was that it
had the macro sg_virt_addr(). Convert all callers to use something else
(sometimes just sg->offset was enough, others should use sg_virt()), and
we can just use the asm-generic scatterlist.h instead.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Dave Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Ensure that we either see that the buffer has write space
in tcp_poll() or that we perform a wakeup from the input
side. Did not run into any actual problem here, but thought
that we should make things explicit.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull more input subsystem updates from Dmitry Torokhov:
- an update to Atmel MXT driver that makes it functional on Google
Pixel 2 boxes (both touchpad and touchscreen)
- a new VMware VMMouse driver that should allow us drop X vmmouse
driver that requires root privileges (since it accesses ioports)
- XBox One controllers now support force feedback (rumble)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: lm8333 - fix broken email address
Input: cyapa - fix setting suspend scan rate
Input: elan_i2c - fix calculating number of x and y traces.
Input: elan_i2c - report hovering contacts
Input: elants_i2c - zero-extend hardware ID in firmware name
Input: alps - document separate pointstick button bits for V2 devices
Input: atmel_mxt_ts - add support for Google Pixel 2
Input: xpad - add rumble support for Xbox One controller
Input: ff-core - use new debug macros
Input: add vmmouse driver
Input: elan_i2c - adjust for newer firmware pressure reporting
