| Commit message (Collapse) | Author | Age | Files | Lines |
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There are three buffer overflows addressed in this patch.
1) In isdnloop_fake_err() we add an 'E' to a 60 character string and
then copy it into a 60 character buffer. I have made the destination
buffer 64 characters and I'm changed the sprintf() to a snprintf().
2) In isdnloop_parse_cmd(), p points to a 6 characters into a 60
character buffer so we have 54 characters. The ->eazlist[] is 11
characters long. I have modified the code to return if the source
buffer is too long.
3) In isdnloop_command() the cbuf[] array was 60 characters long but the
max length of the string then can be up to 79 characters. I made the
cbuf array 80 characters long and changed the sprintf() to snprintf().
I also removed the temporary "dial" buffer and changed it to use "p"
directly.
Unfortunately, we pass the "cbuf" string from isdnloop_command() to
isdnloop_writecmd() which truncates anything over 60 characters to make
it fit in card->omsg[]. (It can accept values up to 255 characters so
long as there is a '\n' character every 60 characters). For now I have
just fixed the memory corruption bug and left the other problems in this
driver alone.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently we're checking a variable for != NULL after actually
dereferencing it, in netdev_lower_get_next_private*().
It's counter-intuitive at best, and can lead to faulty usage (as it implies
that the variable can be NULL), so fix it by removing the useless checks.
Reported-by: Daniel Borkmann <dborkman@redhat.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Nicolas Dichtel <nicolas.dichtel@6wind.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: stephen hemminger <stephen@networkplumber.org>
CC: Jerry Chu <hkchu@google.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Similarly as in commit 8e2f1a63f221 ("packet: fix packet_direct_xmit
for BQL enabled drivers"), we test for __QUEUE_STATE_STACK_XOFF bit
in pktgen's xmit, which would not fully fill the device's TX ring for
BQL drivers that use netdev_tx_sent_queue(). Fix is to use, similarly
as we do in packet sockets, netif_xmit_frozen_or_drv_stopped() test.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The at91_ether driver calls macb_mii_init passing a 'struct macb'
structure whose tx_clk member is initialized to 0. However,
macb_handle_link_change() expects tx_clk to be the result of
a call to clk_get, and so IS_ERR(tx_clk) to be true if the clock
is invalid. This causes an oops when booting Linux 3.14 on the
csb637 board. The following changes avoids this.
Signed-off-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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net/tipc/socket.c: In function ‘tipc_release’:
net/tipc/socket.c:352: warning: ‘res’ is used uninitialized in this function
Introduced by commit 24be34b5a0c9114541891d29dff1152bb1a8df34 ("tipc:
eliminate upcall function pointers between port and socket"), which
removed the sole initializer of "res".
Just return 0 to fix it.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fix a copy&paste failure for setting the MAX_CSMA_RETRIES
value of the at86rf212 chip which was introduced by commit
f2fdd67c6bc89de0100410efb37de69b1c98ac03 ("ieee802154: enable
smart transmitter features of RF212")
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The commit e6278d92005e ("mac802154: use header operations to
create/parse headers") included the header
net/ieee802154_netdev.h
which had been included by the commit b70ab2e87f17 ("ieee802154:
enforce consistent endianness in the 802.15.4 stack"). Fix this
duplicate #include by deleting the latter one as the required header
has already been in place.
Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Cc: Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Cc: linux-zigbee-devel@lists.sourceforge.net
Signed-off-by: David S. Miller <davem@davemloft.net>
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The commit 1edb9ca69e8a ("net: sxgbe: add basic framework for
Samsung 10Gb ethernet driver") added support for Samsung 10Gb
ethernet driver(sxgbe) with a minor issue of including linux/io.h
header twice in sxgbe_dma.c file. Fix the duplicate #include by
deleting the top one so that all the rest good #include headers
would be preserved in the alphabetical order.
Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Cc: Byungho An <bh74.an@samsung.com>
Cc: Girish K S <ks.giri@samsung.com>
Cc: Siva Reddy Kallam <siva.kallam@samsung.com>
Cc: Vipul Pandya <vipul.pandya@samsung.com>
Acked-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The old interpreter behaviour was that we returned with 0
whenever we found a division by 0 would take place. In the new
interpreter we would currently just skip that instead and
continue execution.
It's true that a value of 0 as return might not be appropriate
in all cases, but current users (socket filters -> drop
packet, seccomp -> SECCOMP_RET_KILL, cls_bpf -> unclassified,
etc) seem fine with that behaviour. Better this than undefined
BPF program behaviour as it's expected that A contains the
result of the division. In future, as more use cases open up,
we could further adapt this return value to our needs, if
necessary.
So reintroduce return of 0 for division by 0 as in the old
interpreter. Also in case of K which is guaranteed to be 32bit
wide, sk_chk_filter() already takes care of preventing division
by 0 invoked through K, so we can generally spare us these tests.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Reviewed-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
The following patchset contains Netfilter fixes for your net tree, they
are:
* Use 16-bits offset and length fields instead of 8-bits in the conntrack
extension to avoid an overflow when many conntrack extension are used,
from Andrey Vagin.
* Allow to use cgroup match from LOCAL_IN, there is no apparent reason
for not allowing this, from Alexey Perevalov.
* Fix build of the connlimit match after recent changes to let it scale
up that result in a divide by zero compilation error in UP, from
Florian Westphal.
* Move the lock out of the structure connlimit_data to avoid a false
sharing spotted by Eric Dumazet and Jesper D. Brouer, this needed as
part of the recent connlimit scalability improvements, also from
Florian Westphal.
* Add missing module aliases in xt_osf to fix loading of rules using
this match, from Kirill Tkhai.
* Restrict set names in nf_tables to 15 characters instead of silently
trimming them off, from me.
* Fix wrong format in nf_tables request module call for chain types,
spotted by Florian Westphal, patch from me.
* Fix crash in xtables when it fails to copy the counters back to userspace
after having replaced the table already.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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All xtables variants suffer from the defect that the copy_to_user()
to copy the counters to user memory may fail after the table has
already been exchanged and thus exposed. Return an error at this
point will result in freeing the already exposed table. Any
subsequent packet processing will result in a kernel panic.
We can't copy the counters before exposing the new tables as we
want provide the counter state after the old table has been
unhooked. Therefore convert this into a silent error.
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The intended format in request_module is %.*s instead of %*.s.
Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Currently, nf_tables trims off the set name if it exceeeds 15
bytes, so explicitly reject set names that are too large.
Reported-by: Giuseppe Longo <giuseppelng@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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"len" contains sizeof(nf_ct_ext) and size of extensions. In a worst
case it can contain all extensions. Bellow you can find sizes for all
types of extensions. Their sum is definitely bigger than 256.
nf_ct_ext_types[0]->len = 24
nf_ct_ext_types[1]->len = 32
nf_ct_ext_types[2]->len = 24
nf_ct_ext_types[3]->len = 32
nf_ct_ext_types[4]->len = 152
nf_ct_ext_types[5]->len = 2
nf_ct_ext_types[6]->len = 16
nf_ct_ext_types[7]->len = 8
I have seen "len" up to 280 and my host has crashes w/o this patch.
The right way to fix this problem is reducing the size of the ecache
extension (4) and Florian is going to do this, but these changes will
be quite large to be appropriate for a stable tree.
Fixes: 5b423f6a40a0 (netfilter: nf_conntrack: fix racy timer handling with reliable)
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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There are no these aliases, so kernel can not request appropriate
match table:
$ iptables -I INPUT -p tcp -m osf --genre Windows --ttl 2 -j DROP
iptables: No chain/target/match by that name.
setsockopt() requests ipt_osf module, which is not present. Add
the aliases.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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This simple modification allows iptables to work with INPUT chain
in combination with cgroup module. It could be useful for counting
ingress traffic per cgroup with nfacct netfilter module. There
were no problems to count the egress traffic that way formerly.
It's possible to get classified sk_buff after PREROUTING, due to
socket lookup being done in early_demux (tcp_v4_early_demux). Also
it works for udp as well.
Trivial usage example, assuming we're in the same shell every step
and we have enough permissions:
1) Classic net_cls cgroup initialization:
mkdir /sys/fs/cgroup/net_cls
mount -t cgroup -o net_cls net_cls /sys/fs/cgroup/net_cls
2) Set up cgroup for interesting application:
mkdir /sys/fs/cgroup/net_cls/wget
echo 1 > /sys/fs/cgroup/net_cls/wget/net_cls.classid
echo $BASHPID > /sys/fs/cgroup/net_cls/wget/cgroup.procs
3) Create kernel counters:
nfacct add wget-cgroup-in
iptables -A INPUT -m cgroup ! --cgroup 1 -m nfacct --nfacct-name wget-cgroup-in
nfacct add wget-cgroup-out
iptables -A OUTPUT -m cgroup ! --cgroup 1 -m nfacct --nfacct-name wget-cgroup-out
4) Network usage:
wget https://www.kernel.org/pub/linux/kernel/v3.x/testing/linux-3.14-rc6.tar.xz
5) Check results:
nfacct list
Cgroup approach is being used for the DataUsage (counting & blocking
traffic) feature for Samsung's modification of the Tizen OS.
Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Eric points out that the locks can be global.
Moreover, both Jesper and Eric note that using only 32 locks increases
false sharing as only two cache lines are used.
This increases locks to 256 (16 cache lines assuming 64byte cacheline and
4 bytes per spinlock).
Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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cannot use ARRAY_SIZE() if spinlock_t is empty struct.
Fixes: 1442e7507dd597 ("netfilter: connlimit: use keyed locks")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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There is a "%" after pending_idx instead of ":".
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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version.h inclusion is not necessary as detected by versioncheck.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ioaddr local variable is assigned to but never used in the
smc911x_rx_dma_irq() function, remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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bond_open is not setting the inactive flag correctly for some modes (alb and
tlb), resulting in error behavior if the bond has been administratively set
down and then back up. This effect should not occur when slaves are added while
the bond is up; it's something that only happens after a down/up bounce of the
bond.
For example, in bond tlb or alb mode, domu send some ARP request which go out
from dom0 bond's active slave, then the ARP broadcast request packets go back to
inactive slave from switch, because the inactive slave's inactive flag is zero,
kernel will receive the packets and pass them to bridge that cause dom0's bridge
map domu's MAC address to port of bond, bridge should map domu's MAC to port of
vif.
Signed-off-by: Zheng Li <zheng.x.li@oracle.com>
Signed-off-by: Jay Vosburgh <j.vosburgh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Recycling skb always had been very tough...
This time it appears GRO layer can accumulate skb->truesize
adjustments made by drivers when they attach a fragment to skb.
skb_gro_receive() can only subtract from skb->truesize the used part
of a fragment.
I spotted this problem seeing TcpExtPruneCalled and
TcpExtTCPRcvCollapsed that were unexpected with a recent kernel, where
TCP receive window should be sized properly to accept traffic coming
from a driver not overshooting skb->truesize.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for the Micrel KSZ8864RMN switch to the spi_ks8995
driver. The KSZ8864RMN switch has a wider 256-byte register space.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 5902385a2440a55f005b266c93e0bb9398e5a62b ("tipc: obsolete
the remote management feature") introduces a regression where node
topology events are not being generated because the publication
that triggers this: {0, <z.c.n>, <z.c.n>} is no longer available.
This will break applications that rely on node events to discover
when nodes join/leave a cluster.
We fix this by advertising the node publication when TIPC enters
networking mode, and withdraws it upon shutdown.
Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sxgbe_drv_probe: mdio and priv->hw leaks
sxgbe_drv_remove: clk and priv->hw leaks
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Acked-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Acked-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently there is no way how to find out if a device supports busy
polling. So add a feature and make it dependent on ndo_busy_poll
existence.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, in packet_direct_xmit() we test the assigned netdevice queue
for netif_xmit_frozen_or_stopped() before doing an ndo_start_xmit().
This can have the side-effect that BQL enabled drivers which make use
of netdev_tx_sent_queue() internally, set __QUEUE_STATE_STACK_XOFF from
within the stack and would not fully fill the device's TX ring from
packet sockets with PACKET_QDISC_BYPASS enabled.
Instead, use a test without BQL bit so that bursts can be absorbed
into the NICs TX ring. Fix and code suggested by Eric Dumazet, thanks!
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 015f0688f57c ("net: net: add a core netdev->tx_dropped
counter"), we can now account for TX drops from within the core
stack instead of drivers.
Therefore, fix packet_direct_xmit() and increase drop count when we
encounter a problem before driver's xmit function was called (we do
not want to doubly account for it).
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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An old inefficiency of the TX path that we are grant mapping the first slot,
and then copy the header part to the linear area. Instead, doing a grant copy
for that header straight on is more reasonable. Especially because there are
ongoing efforts to make Xen avoiding TLB flush after unmap when the page were
not touched in Dom0. In the original way the memcpy ruined that.
The key changes:
- the vif has a tx_copy_ops array again
- xenvif_tx_build_gops sets up the grant copy operations
- we don't have to figure out whether the header and first frag are on the same
grant mapped page or not
Note, we only grant copy PKT_PROT_LEN bytes from the first slot, the rest (if
any) will be on the first frag, which is grant mapped. If the first slot is
smaller than PKT_PROT_LEN, then we grant copy that, and later __pskb_pull_tail
will pull more from the frags (if any)
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rename identifiers to state explicitly that they refer to map ops.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The qlcnic driver fails to build on ARM with errors like:
In file included from drivers/net/ethernet/qlogic/qlcnic/qlcnic.h:36:0,
from drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c:8:
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h:585:1: error: unknown type name 'irqreturn_t'
irqreturn_t qlcnic_83xx_clear_legacy_intr(struct qlcnic_adapter *);
^
Nothing in the driver is explicitly including the irq definitions, so we
add an include of linux/irq.h to pick them up.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The enic driver fails to build on ARM with:
In file included from drivers/net/ethernet/cisco/enic/enic_res.c:40:0:
drivers/net/ethernet/cisco/enic/enic.h:48:2: error: expected specifier-qualifier-list before 'irqreturn_t'
irqreturn_t (*isr)(int, void *);
^
Nothing in the driver is explicitly including the irq definitions, so we add
an include of linux/irq.h to pick them up.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bnx2x driver fails to build on ARM with:
In file included from drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c:28:0:
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h:243:1: error: unknown type name 'irqreturn_t'
irqreturn_t bnx2x_msix_sp_int(int irq, void *dev_instance);
^
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.h:251:1: error: unknown type name 'irqreturn_t'
irqreturn_t bnx2x_interrupt(int irq, void *dev_instance);
^
Nothing in bnx2x_link.c or bnx2x_cmn.h is explicitly including the irq
definitions, so we add an include of linux/irq.h to pick them up.
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Return -EINVAL unless all of user-given strings are correctly
NUL-terminated.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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fix build errors:
drivers/net/ethernet/ti/cpts.c:266:12: error: 'ETH_HLEN' undeclared (first use in this function)
drivers/net/ethernet/ti/cpts.c:276:23: error: 'VLAN_HLEN' undeclared (first use in this function)
Fixes: 408eccce3204 ("net: ptp: move PTP classifier in its own file")
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Suggested-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If the vxlan interface is created without explicit group definition,
there are corner cases which may cause kernel panic.
For instance, in the following scenario:
node A:
$ ip link add dev vxlan42 address 2c:c2:60:00:10:20 type vxlan id 42
$ ip addr add dev vxlan42 10.0.0.1/24
$ ip link set up dev vxlan42
$ arp -i vxlan42 -s 10.0.0.2 2c:c2:60:00:01:02
$ bridge fdb add dev vxlan42 to 2c:c2:60:00:01:02 dst <IPv4 address>
$ ping 10.0.0.2
node B:
$ ip link add dev vxlan42 address 2c:c2:60:00:01:02 type vxlan id 42
$ ip addr add dev vxlan42 10.0.0.2/24
$ ip link set up dev vxlan42
$ arp -i vxlan42 -s 10.0.0.1 2c:c2:60:00:10:20
node B crashes:
vxlan42: 2c:c2:60:00:10:20 migrated from 4011:eca4:c0a8:6466:c0a8:6415:8e09:2118 to (invalid address)
vxlan42: 2c:c2:60:00:10:20 migrated from 4011:eca4:c0a8:6466:c0a8:6415:8e09:2118 to (invalid address)
BUG: unable to handle kernel NULL pointer dereference at 0000000000000046
IP: [<ffffffff8143c459>] ip6_route_output+0x58/0x82
PGD 7bd89067 PUD 7bd4e067 PMD 0
Oops: 0000 [#1] SMP
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.14.0-rc8-hvx-xen-00019-g97a5221-dirty #154
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
task: ffff88007c774f50 ti: ffff88007c79c000 task.ti: ffff88007c79c000
RIP: 0010:[<ffffffff8143c459>] [<ffffffff8143c459>] ip6_route_output+0x58/0x82
RSP: 0018:ffff88007fd03668 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff8186a000 RCX: 0000000000000040
RDX: 0000000000000000 RSI: ffff88007b0e4a80 RDI: ffff88007fd03754
RBP: ffff88007fd03688 R08: ffff88007b0e4a80 R09: 0000000000000000
R10: 0200000a0100000a R11: 0001002200000000 R12: ffff88007fd03740
R13: ffff88007b0e4a80 R14: ffff88007b0e4a80 R15: ffff88007bba0c50
FS: 0000000000000000(0000) GS:ffff88007fd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000046 CR3: 000000007bb60000 CR4: 00000000000006e0
Stack:
0000000000000000 ffff88007fd037a0 ffffffff8186a000 ffff88007fd03740
ffff88007fd036c8 ffffffff814320bb 0000000000006e49 ffff88007b8b7360
ffff88007bdbf200 ffff88007bcbc000 ffff88007b8b7000 ffff88007b8b7360
Call Trace:
<IRQ>
[<ffffffff814320bb>] ip6_dst_lookup_tail+0x2d/0xa4
[<ffffffff814322a5>] ip6_dst_lookup+0x10/0x12
[<ffffffff81323b4e>] vxlan_xmit_one+0x32a/0x68c
[<ffffffff814a325a>] ? _raw_spin_unlock_irqrestore+0x12/0x14
[<ffffffff8104c551>] ? lock_timer_base.isra.23+0x26/0x4b
[<ffffffff8132451a>] vxlan_xmit+0x66a/0x6a8
[<ffffffff8141a365>] ? ipt_do_table+0x35f/0x37e
[<ffffffff81204ba2>] ? selinux_ip_postroute+0x41/0x26e
[<ffffffff8139d0c1>] dev_hard_start_xmit+0x2ce/0x3ce
[<ffffffff8139d491>] __dev_queue_xmit+0x2d0/0x392
[<ffffffff813b380f>] ? eth_header+0x28/0xb5
[<ffffffff8139d569>] dev_queue_xmit+0xb/0xd
[<ffffffff813a5aa6>] neigh_resolve_output+0x134/0x152
[<ffffffff813db741>] ip_finish_output2+0x236/0x299
[<ffffffff813dc074>] ip_finish_output+0x98/0x9d
[<ffffffff813dc749>] ip_output+0x62/0x67
[<ffffffff813da9f2>] dst_output+0xf/0x11
[<ffffffff813dc11c>] ip_local_out+0x1b/0x1f
[<ffffffff813dcf1b>] ip_send_skb+0x11/0x37
[<ffffffff813dcf70>] ip_push_pending_frames+0x2f/0x33
[<ffffffff813ff732>] icmp_push_reply+0x106/0x115
[<ffffffff813ff9e4>] icmp_reply+0x142/0x164
[<ffffffff813ffb3b>] icmp_echo.part.16+0x46/0x48
[<ffffffff813c1d30>] ? nf_iterate+0x43/0x80
[<ffffffff813d8037>] ? xfrm4_policy_check.constprop.11+0x52/0x52
[<ffffffff813ffb62>] icmp_echo+0x25/0x27
[<ffffffff814005f7>] icmp_rcv+0x1d2/0x20a
[<ffffffff813d8037>] ? xfrm4_policy_check.constprop.11+0x52/0x52
[<ffffffff813d810d>] ip_local_deliver_finish+0xd6/0x14f
[<ffffffff813d8037>] ? xfrm4_policy_check.constprop.11+0x52/0x52
[<ffffffff813d7fde>] NF_HOOK.constprop.10+0x4c/0x53
[<ffffffff813d82bf>] ip_local_deliver+0x4a/0x4f
[<ffffffff813d7f7b>] ip_rcv_finish+0x253/0x26a
[<ffffffff813d7d28>] ? inet_add_protocol+0x3e/0x3e
[<ffffffff813d7fde>] NF_HOOK.constprop.10+0x4c/0x53
[<ffffffff813d856a>] ip_rcv+0x2a6/0x2ec
[<ffffffff8139a9a0>] __netif_receive_skb_core+0x43e/0x478
[<ffffffff812a346f>] ? virtqueue_poll+0x16/0x27
[<ffffffff8139aa2f>] __netif_receive_skb+0x55/0x5a
[<ffffffff8139aaaa>] process_backlog+0x76/0x12f
[<ffffffff8139add8>] net_rx_action+0xa2/0x1ab
[<ffffffff81047847>] __do_softirq+0xca/0x1d1
[<ffffffff81047ace>] irq_exit+0x3e/0x85
[<ffffffff8100b98b>] do_IRQ+0xa9/0xc4
[<ffffffff814a37ad>] common_interrupt+0x6d/0x6d
<EOI>
[<ffffffff810378db>] ? native_safe_halt+0x6/0x8
[<ffffffff810110c7>] default_idle+0x9/0xd
[<ffffffff81011694>] arch_cpu_idle+0x13/0x1c
[<ffffffff8107480d>] cpu_startup_entry+0xbc/0x137
[<ffffffff8102e741>] start_secondary+0x1a0/0x1a5
Code: 24 14 e8 f1 e5 01 00 31 d2 a8 32 0f 95 c2 49 8b 44 24 2c 49 0b 44 24 24 74 05 83 ca 04 eb 1c 4d 85 ed 74 17 49 8b 85 a8 02 00 00 <66> 8b 40 46 66 c1 e8 07 83 e0 07 c1 e0 03 09 c2 4c 89 e6 48 89
RIP [<ffffffff8143c459>] ip6_route_output+0x58/0x82
RSP <ffff88007fd03668>
CR2: 0000000000000046
---[ end trace 4612329caab37efd ]---
When vxlan interface is created without explicit group definition, the
default_dst protocol family is initialiazed to AF_UNSPEC and the driver
assumes IPv4 configuration. On the other side, the default_dst protocol
family is used to differentiate between IPv4 and IPv6 cases and, since,
AF_UNSPEC != AF_INET, the processing takes the IPv6 path.
Making the IPv4 assumption explicit by settting default_dst protocol
family to AF_INET4 and preventing mixing of IPv4 and IPv6 addresses in
snooped fdb entries fixes the corner case crashes.
Signed-off-by: Mike Rapoport <mike.rapoport@ravellosystems.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull more staging patches from Greg KH:
"Here are some more staging patches for 3.15-rc1.
They include a late-submission of a wireless driver that a bunch of
people seem to have the hardware for now. As it's stand-alone, it
should be fine (now passes the 0-day random build bot tests).
There are also some fixes for the unisys drivers, as they were causing
havoc on a number of different machines. To resolve all of those
issues, we just mark the driver as BROKEN now, and we can fix it up
"properly" over time"
* tag 'staging-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: rtl8723au: The 8723 only has two paths
Staging: unisys: mark drivers as BROKEN
Staging: unisys: verify that a control channel exists
staging: unisys: Add missing close parentheses in filexfer.c
staging: r8723au: Fix build problem when RFKILL is not selected
staging: r8723au: Fix randconfig build errors
staging: r8723au: Turn on build of new driver
staging: r8723au: Additional source patches
staging: r8723au: Add source files for new driver - part 4
staging: r8723au: Add source files for new driver - part 3
staging: r8723au: Add source files for new driver - part 2
staging: r8723au: Add source files for new driver - part 1
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Converting the driver from the original RTL provided version, by error
converted the code to use four, which caused all sorts of issues. The
confusion was caused by the RTL driver having support for both two and
four paths, and in some places had RF_PATH_MAX = 3. At the same time
it kept the data structures hard coded for two paths, in particular
the ones matching the efuse data.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Turns out these drivers like to mess around with the system even if the
hardware they control isn't present. That's not good, and people are
starting to report lots of issues with this in their build/boot testing.
So for now, let's just mark them as BROKEN, until the code gets
converted to use the proper driver model interaction (i.e. don't do
anything until the hardware is actually found in the system.)
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Benjamin Romer <benjamin.romer@unisys.com>
Cc: David Kershner <david.kershner@unisys.com>
Cc: someone <sparmaintainer@unisys.com>
Cc: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The code didn't verify that a control channel exists before trying to
use it. It caused NULL ptr derefs which were easy to trigger by an
unpriviliged user simply by reading the proc file, causing:
[ 68.161404] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 68.162442] IP: visorchannel_read (drivers/staging/unisys/visorchannel/visorchannel_funcs.c:225)
[ 68.163165] PGD 5ca21067 PUD 5ca20067 PMD 0
[ 68.163712] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[ 68.164390] Dumping ftrace buffer:
[ 68.164793] (ftrace buffer empty)
[ 68.165220] Modules linked in:
[ 68.165601] CPU: 0 PID: 7915 Comm: cat Tainted: G W 3.14.0-next-20140403-sasha-00012-gef5fa7d-dirty #373
[ 68.166821] task: ffff88006e8c3000 ti: ffff88005ca30000 task.ti: ffff88005ca30000
[ 68.167689] RIP: visorchannel_read (drivers/staging/unisys/visorchannel/visorchannel_funcs.c:225)
[ 68.168683] RSP: 0018:ffff88005ca31e58 EFLAGS: 00010282
[ 68.169302] RAX: ffff88005ca10000 RBX: ffff88005ca31e97 RCX: 0000000000000001
[ 68.170019] RDX: ffff88005ca31e97 RSI: 0000000000000bd6 RDI: 0000000000000000
[ 68.170019] RBP: ffff88005ca31e78 R08: 0000000000000000 R09: 0000000000000000
[ 68.170019] R10: ffff880000000000 R11: 0000000000000001 R12: 0000000000000001
[ 68.170019] R13: 0000000000000bd6 R14: 0000000000000000 R15: 0000000000008000
[ 68.170019] FS: 00007f0e8c041700(0000) GS:ffff88007be00000(0000) knlGS:0000000000000000
[ 68.170019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 68.170019] CR2: 0000000000000000 CR3: 000000006efe9000 CR4: 00000000000006b0
[ 68.170019] Stack:
[ 68.170019] ffff88005ca31f50 ffff88005ca10000 000000000060e000 ffff88005ca31f50
[ 68.170019] ffff88005ca31ec8 ffffffff83e6f983 ffff8800780db810 0000000000008000
[ 68.170019] ffff88005ca31ec8 ffff88006da5f908 ffff8800780db800 000000000060e000
[ 68.170019] Call Trace:
[ 68.170019] proc_read_toolaction (drivers/staging/unisys/visorchipset/visorchipset_main.c:2541)
[ 68.170019] proc_reg_read (fs/proc/inode.c:211)
[ 68.170019] vfs_read (fs/read_write.c:408)
[ 68.170019] SyS_read (fs/read_write.c:519 fs/read_write.c:511)
[ 68.170019] tracesys (arch/x86/kernel/entry_64.S:749)
[ 68.170019] Code: 00 00 66 66 66 66 90 55 48 89 e5 48 83 ec 20 48 89 5d e0 48 89 d3 4c 89 65 e8 49 89 cc 4c 89 6d f0 49 89 f5 4c 89 75 f8 49 89 fe <48> 8b 3f e8 4f f9 ff ff 85 c0 0f 88 97 00 00 00 4d 85 ed 0f 85
[ 68.170019] RIP visorchannel_read (drivers/staging/unisys/visorchannel/visorchannel_funcs.c:225)
[ 68.170019] RSP <ffff88005ca31e58>
[ 68.170019] CR2: 0000000000000000
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add missing close parentheses in filexfer.c
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kbuild test robot reports the following build errors for x86_64-randconfig-c1-0407:
All error/warnings:
net/built-in.o: In function `wiphy_new':
>> (.text+0x7684c): undefined reference to `rfkill_alloc'
net/built-in.o: In function `wiphy_rfkill_start_polling':
>> (.text+0x76da4): undefined reference to `rfkill_resume_polling'
net/built-in.o: In function `wiphy_rfkill_stop_polling':
>> (.text+0x76de9): undefined reference to `rfkill_pause_polling'
net/built-in.o: In function `wiphy_unregister':
>> (.text+0x76ec9): undefined reference to `rfkill_unregister'
net/built-in.o: In function `wiphy_rfkill_set_hw_state':
>> (.text+0x771bc): undefined reference to `rfkill_set_hw_state'
net/built-in.o: In function `wiphy_register':
>> (.text+0x77968): undefined reference to `rfkill_register'
net/built-in.o: In function `wiphy_register':
>> (.text+0x77981): undefined reference to `rfkill_destroy'
net/built-in.o: In function `cfg80211_rfkill_sync_work':
>> core.c:(.text+0x788ad): undefined reference to `rfkill_blocked'
net/built-in.o: In function `cfg80211_dev_free':
>> (.text+0x78a7b): undefined reference to `rfkill_destroy'
net/built-in.o: In function `cfg80211_netdev_notifier_call':
>> core.c:(.text+0x79203): undefined reference to `rfkill_blocked'
net/built-in.o: In function `nl80211_start_p2p_device':
These undefined sysbols are all satisfied if a "select RFKILL" is added to
Kconfig. This "fix" leads to another problem as follows:
>> nl80211.c:(.text+0x9032e): undefined reference to `rfkill_blocked'
net/rfkill/Kconfig:4:error: recursive dependency detected!
net/rfkill/Kconfig:4: symbol RFKILL is selected by R8723AU
drivers/staging/rtl8723au/Kconfig:1: symbol R8723AU depends on USB
drivers/usb/Kconfig:41: symbol USB is selected by MOUSE_APPLETOUCH
drivers/input/mouse/Kconfig:162: symbol MOUSE_APPLETOUCH depends on INPUT
drivers/input/Kconfig:8: symbol INPUT is selected by ACPI_CMPC
drivers/platform/x86/Kconfig:635: symbol ACPI_CMPC depends on RFKILL
To avoid substituting one build error for another, I added a "depends on RFKILL".
My suspicion is that this particular error is caused by a kbuild bug, or that the
selection of INPUT by ACPI_CMPC is wrong. In any case, that will be solved separately.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: kbuild-all@01.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kbuild test robot got the following errors for i386-randconfig-c0-04060652:
ERROR: "wiphy_free" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "bridge_tunnel_header" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "ieee80211_frequency_to_channel" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_rx_mgmt" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "ieee80211_channel_to_frequency" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_mgmt_tx_status" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "rfc1042_header" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "__ieee80211_get_channel" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "wiphy_unregister" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_connect_result" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_michael_mic_failure" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_roamed" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_put_bss" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "wiphy_new" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "wiphy_register" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_inform_bss_width_frame" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_disconnected" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "ieee80211_amsdu_to_8023s" [drivers/staging/rtl8723au/r8723au.ko] undefined!
ERROR: "cfg80211_scan_done" [drivers/staging/rtl8723au/r8723au.ko] undefined!
All of these are fixed by forcing the selection of CFG80211 in Kconfig.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Cc: kbuild-all@01.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This commit also creates a TODO file.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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These changes are fixes that were discovered late in the testing
cycle.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The Realtek USB device RTL8723AU is found in Lenovo Yoga 13 tablets.
A driver for it has been available in a GitHub repo for several months.
This commit contains the fourth part of source files. The source
is arbitrarily split to avoid E-mail files that are too large.
Jes Sorensen at RedHat has made many improvements to the vendor code,
and he has been doing the testing. I do not have access to this device.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The Realtek USB device RTL8723AU is found in Lenovo Yoga 13 tablets.
A driver for it has been available in a GitHub repo for several months.
This commit contains the third part of source files. The source
is arbitrarily split to avoid E-mail files that are too large.
Jes Sorensen at RedHat has made many improvements to the vendor code,
and he has been doing the testing. I do not have access to this device.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The Realtek USB device RTL8723AU is found in Lenovo Yoga 13 tablets.
A driver for it has been available in a GitHub repo for several months.
This commit contains the second part of the source files. The source
is arbitrarily split to avoid E-mail files that are too large.
Jes Sorensen at RedHat has made many improvements to the vendor code,
and he has been doing the testing. I do not have access to this device.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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