16 Nov, 2015
17 commits
-
SYNACK packets might be attached to request sockets.
Use skb_to_full_sk() helper to avoid illegal accesses to
inet_sk(skb->sk)Fixes: ca6fb0651883 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet
Reported-by: Sander Eikelenboom
Acked-by: Julian Anastasov
Acked-by: Simon Horman
Signed-off-by: David S. Miller -
Some functions access TCP sockets without holding a lock and
might output non consistent data, depending on compiler and or
architecture.tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ...
Introduce sk_state_load() and sk_state_store() to fix the issues,
and more clearly document where this lack of locking is happening.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
If device probe fails, driver remains bound to the PCI device. However,
driver data has been reset to NULL. This causes crash upon dereferencing
it in nicvf_remove()Signed-off-by: Pavel Fedin
Signed-off-by: David S. Miller -
now sctp auth cannot work well when setting a hmacid manually, which
is caused by that we didn't use the network order for hmacid, so fix
it by adding the transformation in sctp_auth_ep_set_hmacs.even we set hmacid with the network order in userspace, it still
can't work, because of this condition in sctp_auth_ep_set_hmacs():if (id > SCTP_AUTH_HMAC_ID_MAX)
return -EOPNOTSUPP;so this wasn't working before and thus it won't break compatibility.
Fixes: 65b07e5d0d09 ("[SCTP]: API updates to suport SCTP-AUTH extensions.")
Signed-off-by: Xin Long
Signed-off-by: Marcelo Ricardo Leitner
Acked-by: Neil Horman
Acked-by: Vlad Yasevich
Signed-off-by: David S. Miller -
Daniel Borkmann says:
====================
packet fixesFixes a couple of issues in packet sockets, i.e. on TX ring side. See
individual patches for details.v2 -> v3:
- First two patches unchanged, kept Jason's Ack
- Reworked 3rd patch and split into 3:
- check for dev type as discussed with Willem
- infer skb->protocol
- fix max len for dgram
v1 -> v2:
- Added patch 2 as suggested by Dave
- Rest is unchanged from previous submission
====================Signed-off-by: David S. Miller
-
Since it's introduction in commit 69e3c75f4d54 ("net: TX_RING and
packet mmap"), TX_RING could be used from SOCK_DGRAM and SOCK_RAW
side. When used with SOCK_DGRAM only, the size_max > dev->mtu +
reserve check should have reserve as 0, but currently, this is
unconditionally set (in it's original form as dev->hard_header_len).I think this is not correct since tpacket_fill_skb() would then
take dev->mtu and dev->hard_header_len into account for SOCK_DGRAM,
the extra VLAN_HLEN could be possible in both cases. Presumably, the
reserve code was copied from packet_snd(), but later on missed the
check. Make it similar as we have it in packet_snd().Fixes: 69e3c75f4d54 ("net: TX_RING and packet mmap")
Signed-off-by: Daniel Borkmann
Acked-by: Willem de Bruijn
Signed-off-by: David S. Miller -
In case no struct sockaddr_ll has been passed to packet
socket's sendmsg() when doing a TX_RING flush run, then
skb->protocol is set to po->num instead, which is the protocol
passed via socket(2)/bind(2).Applications only xmitting can go the path of allocating the
socket as socket(PF_PACKET, , 0) and do a bind(2) on the
TX_RING with sll_protocol of 0. That way, register_prot_hook()
is neither called on creation nor on bind time, which saves
cycles when there's no interest in capturing anyway.That leaves us however with po->num 0 instead and therefore
the TX_RING flush run sets skb->protocol to 0 as well. Eric
reported that this leads to problems when using tools like
trafgen over bonding device. I.e. the bonding's hash function
could invoke the kernel's flow dissector, which depends on
skb->protocol being properly set. In the current situation, all
the traffic is then directed to a single slave.Fix it up by inferring skb->protocol from the Ethernet header
when not set and we have ARPHRD_ETHER device type. This is only
done in case of SOCK_RAW and where we have a dev->hard_header_len
length. In case of ARPHRD_ETHER devices, this is guaranteed to
cover ETH_HLEN, and therefore being accessed on the skb after
the skb_store_bits().Reported-by: Eric Dumazet
Signed-off-by: Daniel Borkmann
Acked-by: Willem de Bruijn
Signed-off-by: David S. Miller -
Packet sockets can be used by various net devices and are not
really restricted to ARPHRD_ETHER device types. However, when
currently checking for the extra 4 bytes that can be transmitted
in VLAN case, our assumption is that we generally probe on
ARPHRD_ETHER devices. Therefore, before looking into Ethernet
header, check the device type first.This also fixes the issue where non-ARPHRD_ETHER devices could
have no dev->hard_header_len in TX_RING SOCK_RAW case, and thus
the check would test unfilled linear part of the skb (instead
of non-linear).Fixes: 57f89bfa2140 ("network: Allow af_packet to transmit +4 bytes for VLAN packets.")
Fixes: 52f1454f629f ("packet: allow to transmit +4 byte in TX_RING slot for VLAN case")
Signed-off-by: Daniel Borkmann
Acked-by: Willem de Bruijn
Signed-off-by: David S. Miller -
We concluded that the skb_probe_transport_header() should better be
called unconditionally. Avoiding the call into the flow dissector has
also not really much to do with the direct xmit mode.While it seems that only virtio_net code makes use of GSO from non
RX/TX ring packet socket paths, we should probe for a transport header
nevertheless before they hit devices.Reference: http://thread.gmane.org/gmane.linux.network/386173/
Signed-off-by: Daniel Borkmann
Acked-by: Jason Wang
Signed-off-by: David S. Miller -
In tpacket_fill_skb() commit c1aad275b029 ("packet: set transport
header before doing xmit") and later on 40893fd0fd4e ("net: switch
to use skb_probe_transport_header()") was probing for a transport
header on the skb from a ring buffer slot, but at a time, where
the skb has _not even_ been filled with data yet. So that call into
the flow dissector is pretty useless. Lets do it after we've set
up the skb frags.Fixes: c1aad275b029 ("packet: set transport header before doing xmit")
Reported-by: Eric Dumazet
Signed-off-by: Daniel Borkmann
Acked-by: Jason Wang
Signed-off-by: David S. Miller -
Use the local uapi headers to keep in sync with "recently" added #define's
(e.g. SKF_AD_VLAN_TPID). Refactored CFLAGS, and bpf_asm doesn't need -I.Fixes: 3f356385e8a4 ("filter: bpf_asm: add minimal bpf asm tool")
Signed-off-by: Kamal Mostafa
Acked-by: Daniel Borkmann
Signed-off-by: David S. Miller -
Martin KaFai Lau says:
====================
ipv6: Fixes for pmtu update and DST_NOCACHE routeThis patchset fixes:
1. An oops during IPv6 pmtu update on a IPv4 GRE running
in an IPSec setup
2. Misc fixes on DST_NOCACHE route
====================Signed-off-by: David S. Miller
-
All DST_NOCACHE rt6_info used to have rt->dst.from set to
its parent.After commit 8e3d5be73681 ("ipv6: Avoid double dst_free"),
DST_NOCACHE is also set to rt6_info which does not have
a parent (i.e. rt->dst.from is NULL).This patch catches the rt->dst.from == NULL case.
Fixes: 8e3d5be73681 ("ipv6: Avoid double dst_free")
Signed-off-by: Martin KaFai Lau
Cc: Hannes Frederic Sowa
Signed-off-by: David S. Miller -
Since the expires of the DST_NOCACHE rt can be set during
the ip6_rt_update_pmtu(), we also need to consider the expires
value when doing ip6_dst_check().This patches creates __rt6_check_expired() to only
check the expire value (if one exists) of the current rt.In rt6_dst_from_check(), it adds __rt6_check_expired() as
one of the condition check.Signed-off-by: Martin KaFai Lau
Cc: Hannes Frederic Sowa
Signed-off-by: David S. Miller -
The original bug report:
https://bugzilla.redhat.com/show_bug.cgi?id=1272571The setup has a IPv4 GRE tunnel running in a IPSec. The bug
happens when ndisc starts sending router solicitation at the gre
interface. The simplified oops stack is like:__lock_acquire+0x1b2/0x1c30
lock_acquire+0xb9/0x140
_raw_write_lock_bh+0x3f/0x50
__ip6_ins_rt+0x2e/0x60
ip6_ins_rt+0x49/0x50
~~~~~~~~
__ip6_rt_update_pmtu.part.54+0x145/0x250
ip6_rt_update_pmtu+0x2e/0x40
~~~~~~~~
ip_tunnel_xmit+0x1f1/0xf40
__gre_xmit+0x7a/0x90
ipgre_xmit+0x15a/0x220
dev_hard_start_xmit+0x2bd/0x480
__dev_queue_xmit+0x696/0x730
dev_queue_xmit+0x10/0x20
neigh_direct_output+0x11/0x20
ip6_finish_output2+0x21f/0x770
ip6_finish_output+0xa7/0x1d0
ip6_output+0x56/0x190
~~~~~~~~
ndisc_send_skb+0x1d9/0x400
ndisc_send_rs+0x88/0xc0
~~~~~~~~The rt passed to ip6_rt_update_pmtu() is created by
icmp6_dst_alloc() and it is not managed by the fib6 tree,
so its rt6i_table == NULL. When __ip6_rt_update_pmtu() creates
a RTF_CACHE clone, the newly created clone also has rt6i_table == NULL
and it causes the ip6_ins_rt() oops.During pmtu update, we only want to create a RTF_CACHE clone
from a rt which is currently managed (or owned) by the
fib6 tree. It means either rt->rt6i_node != NULL or
rt is a RTF_PCPU clone.It is worth to note that rt6i_table may not be NULL even it is
not (yet) managed by the fib6 tree (e.g. addrconf_dst_alloc()).
Hence, rt6i_node is a better check instead of rt6i_table.Fixes: 45e4fd26683c ("ipv6: Only create RTF_CACHE routes after encountering pmtu")
Signed-off-by: Martin KaFai Lau
Reported-by: Chris Siebenmann
Cc: Chris Siebenmann
Cc: Hannes Frederic Sowa
Signed-off-by: David S. Miller -
minor change, indenting is one tab out.
Signed-off-by: Colin Ian King
Signed-off-by: Taku Izumi
Signed-off-by: David S. Miller -
During splicing an af-unix socket to a pipe we have to drop all
af-unix socket locks. While doing so we allow another reader to enter
unix_stream_read_generic which can read, copy and finally free another
skb. If exactly this skb is just in process of being spliced we get a
use-after-free report by kasan.First, we must make sure to not have a free while the skb is used during
the splice operation. We simply increment its use counter before unlocking
the reader lock.Stream sockets have the nice characteristic that we don't care about
zero length writes and they never reach the peer socket's queue. That
said, we can take the UNIXCB.consumed field as the indicator if the
skb was already freed from the socket's receive queue. If the skb was
fully consumed after we locked the reader side again we know it has been
dropped by a second reader. We indicate a short read to user space and
abort the current splice operation.This bug has been found with syzkaller
(http://github.com/google/syzkaller) by Dmitry Vyukov.Fixes: 2b514574f7e8 ("net: af_unix: implement splice for stream af_unix sockets")
Reported-by: Dmitry Vyukov
Cc: Dmitry Vyukov
Cc: Eric Dumazet
Acked-by: Eric Dumazet
Signed-off-by: Hannes Frederic Sowa
Signed-off-by: David S. Miller
13 Nov, 2015
3 commits
-
Building dwmac-ipq806x on a 64-bit architecture produces a harmless
warning from gcc:stmmac/dwmac-ipq806x.c: In function 'ipq806x_gmac_probe':
include/linux/bitops.h:6:19: warning: overflow in implicit constant conversion [-Woverflow]
val = QSGMII_PHY_CDR_EN |
stmmac/dwmac-ipq806x.c:333:8: note: in expansion of macro 'QSGMII_PHY_CDR_EN'
#define QSGMII_PHY_CDR_EN BIT(0)
#define BIT(nr) (1UL << (nr))This is a result of the type conversion rules in C, when we take the
logical OR of multiple different types. In particular, we have
and unsigned longQSGMII_PHY_CDR_EN == BIT(0) == (1ul << 0) == 0x0000000000000001ul
and a signed int
0xC << QSGMII_PHY_TX_DRV_AMP_OFFSET == 0xc0000000
which together gives a signed long value
0xffffffffc0000001l
and when this is passed into a function that takes an unsigned int type,
gcc warns about the signed overflow and the loss of the upper 32-bits that
are all ones.This patch adds 'ul' type modifiers to the literal numbers passed in
here, so now the expression remains an 'unsigned long' with the upper
bits all zero, and that avoids the signed overflow and the warning.Signed-off-by: Arnd Bergmann
Fixes: b1c17215d718 ("stmmac: add ipq806x glue layer")
Signed-off-by: David S. Miller -
Pablo Neira Ayuso:
====================
Netfilter fixes for netThe following patchset contains Netfilter fixes for your net tree. This
large batch that includes fixes for ipset, netfilter ingress, nf_tables
dynamic set instantiation and a longstanding Kconfig dependency problem.
More specifically, they are:1) Add missing check for empty hook list at the ingress hook, from
Florian Westphal.2) Input and output interface are swapped at the ingress hook,
reported by Patrick McHardy.3) Resolve ipset extension alignment issues on ARM, patch from Jozsef
Kadlecsik.4) Fix bit check on bitmap in ipset hash type, also from Jozsef.
5) Release buckets when all entries have expired in ipset hash type,
again from Jozsef.6) Oneliner to initialize conntrack tuple object in the PPTP helper,
otherwise the conntrack lookup may fail due to random bits in the
structure holes, patch from Anthony Lineham.7) Silence a bogus gcc warning in nfnetlink_log, from Arnd Bergmann.
8) Fix Kconfig dependency problems with TPROXY, socket and dup, also
from Arnd.9) Add __netdev_alloc_pcpu_stats() to allow creating percpu counters
from atomic context, this is required by the follow up fix for
nf_tables.10) Fix crash from the dynamic set expression, we have to add new clone
operation that should be defined when a simple memcpy is not enough.
This resolves a crash when using per-cpu counters with new Patrick
McHardy's flow table nft support.
====================Signed-off-by: David S. Miller
-
Signed-off-by: Francois Romieu
Reported-by: Dave Jones
Fixes: d7d2d89d4b0af ("r8169: Add software counter for multicast packages")
Acked-by: Eric Dumazet
Acked-by: Corinna Vinschen
Signed-off-by: David S. Miller
11 Nov, 2015
20 commits
-
Merge final patch-bomb from Andrew Morton:
"Various leftovers, mainly Christoph's pci_dma_supported() removals"* emailed patches from Andrew Morton :
pci: remove pci_dma_supported
usbnet: remove ifdefed out call to dma_supported
kaweth: remove ifdefed out call to dma_supported
sfc: don't call dma_supported
nouveau: don't call pci_dma_supported
netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported
cx23885: use pci_set_dma_mask insted of pci_dma_supported
cx25821: use pci_set_dma_mask insted of pci_dma_supported
cx88: use pci_set_dma_mask insted of pci_dma_supported
saa7134: use pci_set_dma_mask insted of pci_dma_supported
saa7164: use pci_set_dma_mask insted of pci_dma_supported
tw68-core: use pci_set_dma_mask insted of pci_dma_supported
pcnet32: use pci_set_dma_mask insted of pci_dma_supported
lib/string.c: add ULL suffix to the constant definition
hugetlb: trivial comment fix
selftests/mlock2: add ULL suffix to 64-bit constants
selftests/mlock2: add missing #define _GNU_SOURCE -
Pull misc kbuild updates from Michal Marek:
"This is the non-critical part of kbuild:- several coccinelle updates
- make deb-pkg creates an armhf package if CONFIG_VFP=y
- make tags understands some more powerpc macros"* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
coccinelle: Improve checking for missing NULL terminators
coccinelle: ifnullfree: handle various destroy functions
coccinelle: ifnullfree: various cleanups
cocinelle: iterators: semantic patch to delete unneeded of_node_put
deb-pkg: Add automatic support for armhf architecture
scripts/coccinelle: fix typos
coccinelle: misc: remove "complex return code" warnings
Coccinelle: fix incorrect -include option transformation
coccinelle: tests: improve odd_ptr_err.cocci
coccinelle: misc: move constants to the right
scripts/tags.sh: Teach tags about some powerpc macros -
Pull kconfig updates from Michal Marek:
- 'make xconfig' ported to Qt5, dropping support for Qt3
- merge_config.sh supports a single-input-file mode and also respects
$KCONFIG_CONFIG- Fix for incorrect display of >= and > in dependency expressions
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (44 commits)
Add current selection check.
Use pkg-config to find Qt 4 and 5 instead of direct qmake
kconfig: Fix copy&paste error
kconfig/merge_config.sh: Accept a single file
kconfig/merge_config.sh: Support KCONFIG_CONFIG
Update the buildsystem for KConfig finding Qt
Port xconfig to Qt5 - Update copyright.
Port xconfig to Qt5 - Fix goParent issue.
Port xconfig to Qt5 - on Back clicked, deselect old item.
Port xconfig to Qt5 - Add(back) one click checkbox toggle.
Port xconfig to Qt5 - Add(back) lineedit editing.
Port xconfig to Qt5 - Remove some commented code.
Port xconfig to Qt5 - Source format.
Port xconfig to Qt5 - Add horizontal scrollbar, and scroll per pixel.
Port xconfig to Qt5 - Change ConfigItem constructor parent type.
Port xconfig to Qt5 - Disable ConfigList soring
Port xconfig to Qt5 - Remove ConfigList::updateMenuList template.
Port xconfig to Qt5 - Add ConfigList::mode to initializer list.
Port xconfig to Qt5 - Add ConfigItem::nextItem to initializer list.
Port xconfig to Qt5 - Tree widget set column titles.
... -
Pull kbuild update from Michal Marek:
"The kbuild branch for v4.4-rc1 only has one commit: A new make
kselftest-clean target cleans tools/testing/selftests"* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kselftest: add kselftest-clean rule -
…/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
"This 12 patch update for 4.4-rc1 consists of a new pstore test and
fixes to existing tests"* tag 'linux-kselftest-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: breakpoint: Actually build it
selftests: vm: Try harder to allocate huge pages
selftests: Make scripts executable
selftests: kprobe: Choose an always-defined function to probe
selftests: memfd: Stop unnecessary rebuilds
selftests: Add missing #include directives
selftests/seccomp: Be more precise with syscall arguments.
selftests/seccomp: build and pass on arm64
selftests: memfd_test: Revised STACK_SIZE to make it 16-byte aligned
selftests/pstore: add pstore test scripts going with reboot
selftests/pstore: add pstore test script for pre-reboot
selftests: add .gitignore for efivarfs -
Pull drm fixes from Dave Airlie:
"Two build fixes, one for VC4, one for nouveau where the ARM only code
is doing something a bit strange. While people are discussing that,
just workaround it and fix the build for now. The code in question
will never get used on anything non-ARM anyways.Also one fix for AST that SuSE had been hiding in their kernel, that
allows all fbdev apps to work on that driver"* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau: fix build failures on all non ARM.
drm/ast: Initialized data needed to map fbdev memory
drm/vc4: Add dependency on HAVE_DMA_ATTRS, and select DRM_GEM_CMA_HELPER -
gk20a is an ARM only GPU, so we can just do the correct thing on
ARM but fail on other architectures. The other option was to use
SWIOTLB as the define, which means phys_to_page exists, but
this seems clearer.Signed-off-by: Dave Airlie
-
Due to a missing initialization there was no way to map fbdev memory.
Thus for example using the Xserver with the fbdev driver failed.
This fix adds initialization for fix.smem_start and fix.smem_len
in the fb_info structure, which fixes this problem.Requested-by: Benjamin Herrenschmidt
Cc: stable@vger.kernel.org
Signed-off-by: Egbert Eich
[pulled from SuSE tree by me - airlied]
Signed-off-by: Dave Airlie -
Pull networking fixes from David Miller:
1) Fix null deref in xt_TEE netfilter module, from Eric Dumazet.
2) Several spots need to get to the original listner for SYN-ACK
packets, most spots got this ok but some were not. Whilst covering
the remaining cases, create a helper to do this. From Eric Dumazet.3) Missiing check of return value from alloc_netdev() in CAIF SPI code,
from Rasmus Villemoes.4) Don't sleep while != TASK_RUNNING in macvtap, from Vlad Yasevich.
5) Use after free in mvneta driver, from Justin Maggard.
6) Fix race on dst->flags access in dst_release(), from Eric Dumazet.
7) Add missing ZLIB_INFLATE dependency for new qed driver. From Arnd
Bergmann.8) Fix multicast getsockopt deadlock, from WANG Cong.
9) Fix deadlock in btusb, from Kuba Pawlak.
10) Some ipv6_add_dev() failure paths were not cleaning up the SNMP6
counter state. From Sabrina Dubroca.11) Fix packet_bind() race, which can cause lost notifications, from
Francesco Ruggeri.12) Fix MAC restoration in qlcnic driver during bonding mode changes,
from Jarod Wilson.13) Revert bridging forward delay change which broke libvirt and other
userspace things, from Vlad Yasevich.* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (65 commits)
Revert "bridge: Allow forward delay to be cfgd when STP enabled"
bpf_trace: Make dependent on PERF_EVENTS
qed: select ZLIB_INFLATE
net: fix a race in dst_release()
net: mvneta: Fix memory use after free.
net: Documentation: Fix default value tcp_limit_output_bytes
macvtap: Resolve possible __might_sleep warning in macvtap_do_read()
mvneta: add FIXED_PHY dependency
net: caif: check return value of alloc_netdev
net: hisilicon: NET_VENDOR_HISILICON should depend on HAS_DMA
drivers: net: xgene: fix RGMII 10/100Mb mode
netfilter: nft_meta: use skb_to_full_sk() helper
net_sched: em_meta: use skb_to_full_sk() helper
sched: cls_flow: use skb_to_full_sk() helper
netfilter: xt_owner: use skb_to_full_sk() helper
smack: use skb_to_full_sk() helper
net: add skb_to_full_sk() helper and use it in selinux_netlbl_skbuff_setsid()
bpf: doc: correct arch list for supported eBPF JIT
dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put"
bonding: fix panic on non-ARPHRD_ETHER enslave failure
... -
Pull block IO poll support from Jens Axboe:
"Various groups have been doing experimentation around IO polling for
(really) fast devices. The code has been reviewed and has been
sitting on the side for a few releases, but this is now good enough
for coordinated benchmarking and further experimentation.Currently O_DIRECT sync read/write are supported. A framework is in
the works that allows scalable stats tracking so we can auto-tune
this. And we'll add libaio support as well soon. Fow now, it's an
opt-in feature for test purposes"* 'for-4.4/io-poll' of git://git.kernel.dk/linux-block:
direct-io: be sure to assign dio->bio_bdev for both paths
directio: add block polling support
NVMe: add blk polling support
block: add block polling support
blk-mq: return tag/queue combo in the make_request_fn handlers
block: change ->make_request_fn() and users to return a queue cookie -
Pull UBI/UBIFS updates from Richard Weinberger:
- access time support for UBIFS by Dongsheng Yang
- random cleanups and bug fixes all over the place
* tag 'upstream-4.4-rc1' of git://git.infradead.org/linux-ubifs:
ubifs: introduce UBIFS_ATIME_SUPPORT to ubifs
ubifs: make ubifs_[get|set]xattr atomic
UBIFS: Delete unnecessary checks before the function call "iput"
UBI: Remove in vain semicolon
UBI: Fastmap: Fix PEB array type
UBIFS: Fix possible memory leak in ubifs_readdir()
fs/ubifs: remove unnecessary new_valid_dev check
ubi: fastmap: Implement produce_free_peb()
UBIFS: print verbose message when rescanning a corrupted node
UBIFS: call dbg_is_power_cut() instead of reading c->dbg->pc_happened
UBI: drop null test before destroy functions
UBI: Update comments to reflect UBI_METAONLY flag
UBI: Fix debug message
UBI: Fix typo in comment
UBI: Fastmap: Simplify expression
UBIFS: fix a typo in comment of ubifs_budget_req
UBIFS: use kmemdup rather than duplicating its implementation -
Pull UML updates from Richard Weinberger:
- a new hrtimer based clocksource by Anton Ivanov
- ptrace() enhancments by Richard Weinberger
- random cleanups and bug fixes all over the place
* 'for-linus-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Switch clocksource to hrtimers
um: net: replace GFP_KERNEL with GFP_ATOMIC when spinlock is held
um: Report host OOM more nicely
um: Simplify STUB_DATA loading
um: Remove dead symbol from i386 syscall stub
um: Remove dead code from x86_64 syscall stub
um: Get rid of open coded NR_SYSCALLS
um: Store syscall number after syscall_trace_enter()
um: Define PTRACE_OLDSETOPTIONS -
Signed-off-by: Christoph Hellwig
Cc: "James E.J. Bottomley"
Cc: Helge Deller
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Christoph Hellwig
Cc: Oliver Neukum
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Christoph Hellwig
Cc: "David S. Miller"
Cc: Oliver Neukum
Cc: Alexey Khoroshilov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
dma_set_mask already checks for a supported DMA mask before updating it,
the call to dma_supported is redundant.Signed-off-by: Christoph Hellwig
Cc: Solarflare linux maintainers
Cc: Shradha Shah
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Just try to set a 64-bit DMA mask first and retry with the smaller dma_mask
if dma_set_mask failed.Signed-off-by: Christoph Hellwig
Cc: David Airlie
Cc: Ben Skeggs
Cc: Alexandre Courbot
Cc: Daniel Vetter
Cc: Thierry Reding
Cc: Dave Airlie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This ensures the dma mask that is supported by the driver is recorded
in the device structure.Signed-off-by: Christoph Hellwig
Cc: Sergey Kozlov
Cc: Mauro Carvalho Chehab
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This ensures the dma mask that is supported by the driver is recorded
in the device structure.Signed-off-by: Christoph Hellwig
Cc: Mauro Carvalho Chehab
Cc: Hans Verkuil
Cc: Pawel Osciak
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This ensures the dma mask that is supported by the driver is recorded
in the device structure.Signed-off-by: Christoph Hellwig
Cc: Mauro Carvalho Chehab
Cc: Hans Verkuil
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
