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We accidentally return an uninitialized variable.
Fixes: cf56c2f892a8 ("netfilter: remove old pre-netns era hook api")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for your net tree,
they are:
1) Missing netlink message sanity check in nfnetlink, patch from
Mateusz Jurczyk.
2) We now have netfilter per-netns hooks, so let's kill global hook
infrastructure, this infrastructure is known to be racy with netns.
We don't care about out of tree modules. Patch from Florian Westphal.
3) find_appropriate_src() is buggy when colissions happens after the
conversion of the nat bysource to rhashtable. Also from Florian.
4) Remove forward chain in nf_tables arp family, it's useless and it is
causing quite a bit of confusion, from Florian Westphal.
5) nf_ct_remove_expect() is called with the wrong parameter, causing
kernel oops, patch from Florian Westphal.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric noticed that in udp_recvmsg() we still need to access
skb->dst while processing the IP options.
Since commit 0a463c78d25b ("udp: avoid a cache miss on dequeue")
skb->dst is no more available at recvmsg() time and bad things
will happen if we enter the relevant code path.
This commit address the issue, avoid clearing skb->dst if
any IP options are present into the relevant skb.
Since the IP CB is contained in the first skb cacheline, we can
test it to decide to leverage the consume_stateless_skb()
optimization, without measurable additional cost in the faster
path.
v1 -> v2: updated commit message tags
Fixes: 0a463c78d25b ("udp: avoid a cache miss on dequeue")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull MD fixes from Shaohua Li:
- raid5-ppl fix by Artur. This one is introduced in this release cycle.
- raid5 reshape fix by Xiao. This is an old bug and will be added to
stable.
- bitmap fix by Guoqing.
* tag 'md/4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
raid5-ppl: use BIOSET_NEED_BVECS when creating bioset
Raid5 should update rdev->sectors after reshape
md/bitmap: don't read page from device with Bitmap_sync
If 'dma_set_mask_and_coherent()' fails, we must undo the previous
'pci_request_regions()' call.
Adjust corresponding 'goto' to jump at the right place of the error
handling path.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
The global percpu variable ppp_xmit_recursion is used to detect the ppp
xmit recursion to avoid the deadlock, which is caused by one CPU tries to
lock the xmit lock twice. But it would report false recursion when one CPU
wants to send the skb from two different PPP devices, like one L2TP on the
PPPoE. It is a normal case actually.
Now use one percpu member of struct ppp instead of the gloable variable to
detect the xmit recursion of one ppp device.
Fixes: 55454a565836 ("ppp: avoid dealock on recursive xmit")
Signed-off-by: Gao Feng <gfree.wind@vip.163.com>
Signed-off-by: Liu Jianying <jianying.liu@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Misc. iSER fixes
- Namespace fixups
- Fix the fact that IPoIB didn't use the proper API for noio mem allocs
- rxe driver fixes
- hns_roce fixes
- Misc core fixes
- Misc IPoIB fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma fixes from Doug Ledford:
"First set of -rc fixes for 4.13 cycle:
- misc iSER fixes
- namespace fixups
- fix the fact that IPoIB didn't use the proper API for noio mem allocs
- rxe driver fixes
- hns_roce fixes
- misc core fixes
- misc IPoIB fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (27 commits)
IB/core: Allow QP state transition from reset to error
IB/hns: Fix for checkpatch.pl comment style warnings
IB/hns: Fix the bug with modifying the MAC address without removing the driver
IB/hns: Fix the bug with rdma operation
IB/hns: Fix the bug with wild pointer when destroy rc qp
IB/hns: Fix the bug of polling cq failed for loopback Qps
IB/rxe: Set dma_mask and coherent_dma_mask
IB/rxe: Fix kernel panic from skb destructor
IB/ipoib: Let lower driver handle get_stats64 call
IB/core: Add ordered workqueue for RoCE GID management
IB/mlx5: Clean mr_cache debugfs in case of failure
IB/core: Remove NOIO QP create flag
{net, IB}/mlx4: Remove gfp flags argument
IB/{rdmavt, qib, hfi1}: Remove gfp flags argument
IB/IPoIB: Convert IPoIB to memalloc_noio_* calls
IB/IPoIB: Forward MTU change to driver below
IB: Convert msleep below 20ms to usleep_range
IB/uverbs: Make use of ib_modify_qp variant to avoid resolving DMAC
IB/core: Introduce modify QP operation with udata
IB/core: Don't resolve IP address to the loopback device
...
found by Dave Jones and KASAN.
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Merge tag 'nfsd-4.13-1' of git://linux-nfs.org/~bfields/linux
Pull nfsd fix from Bruce Fields:
"One fix for a problem introduced in the most recent merge window and
found by Dave Jones and KASAN"
* tag 'nfsd-4.13-1' of git://linux-nfs.org/~bfields/linux:
nfsd: Fix a memory scribble in the callback channel
When new directory 'DIR1' is created in a directory 'DIR0' with SGID bit
set, DIR1 is expected to have SGID bit set (and owning group equal to
the owning group of 'DIR0'). However when 'DIR0' also has some default
ACLs that 'DIR1' inherits, setting these ACLs will result in SGID bit on
'DIR1' to get cleared if user is not member of the owning group.
Fix the problem by creating __hfsplus_set_posix_acl() function that does
not call posix_acl_update_mode() and use it when inheriting ACLs. That
prevents SGID bit clearing and the mode has been properly set by
posix_acl_create() anyway.
Fixes: 073931017b49d9458aa351605b43a7e34598caef
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
According to ECMA-130 standard maximum valid track number is 99. Since
'session' mount option starts indexing at 0 (and we add 1 to the passed
number), we should refuse value 99. Also the condition in
isofs_get_last_session() unnecessarily repeats the check - remove it.
Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
When changing a file's acl mask, reiserfs_set_acl() will first set the
group bits of i_mode to the value of the mask, and only then set the
actual extended attribute representing the new acl.
If the second part fails (due to lack of space, for example) and the
file had no acl attribute to begin with, the system will from now on
assume that the mask permission bits are actual group permission bits,
potentially granting access to the wrong users.
Prevent this by only changing the inode mode after the acl has been set.
Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
When changing a file's acl mask, ext2_set_acl() will first set the group
bits of i_mode to the value of the mask, and only then set the actual
extended attribute representing the new acl.
If the second part fails (due to lack of space, for example) and the file
had no acl attribute to begin with, the system will from now on assume
that the mask permission bits are actual group permission bits, potentially
granting access to the wrong users.
Prevent this by only changing the inode mode after the acl has been set.
[JK: Rebased on top of "ext2: Don't clear SGID when inheriting ACLs"]
Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Before retrying to flush data or dentry pages, we need to release cpu in order
to prevent watchdog.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This patch includes seq_file.h to avoid compile error.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Playing with IP-O-IB interface can trigger a warning message:
"ib0: Failed to modify QP to ERROR state" to be logged.
This happens when the QP is in IB_QPS_RESET state and the stack
is trying to transition it to IB_QPS_ERR state in ipoib_ib_dev_stop().
According to the IB spec, Table 91 - "QP State Transition Properties"
it looks like the transition from reset to error is valid:
Transition: Any State to Error
Required Attributes: None
Optional Attributes: None allowed
Actions: Queue processing is stopped. Work Requests pending or in
process are completed in error, when possible.
This patch allows the transition and quiets the message.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch correct the comment style warnings caught by
checkpatch.pl script.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When modified the MAC address used hns_roce_mac function, we release and create
reserved qp again, It is not necessary to use spin_lock_bh and spin_unlock_bh in
handle_en_event, Otherwise, it will occur a error. This patch mainly fixes it.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When opcode of work request is RDMA read and write, it
should use rdma_wr to get remote_addr and rkey. This
patch fixes it.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When destroyed rc qp, the hr_qp will be used after freed. This patch
will fix it.
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In hip06 SoC, RoCE driver creates 8 reserved loopback QPs to
ensure zero wqe when free mr. However, if the enabled phy
port number is less than 6, it will fail in polling cqe with
8 reserved loopback QPs.
In order to solve this problem, the number of loopback Qps
will be adjusted based on the number of enabled phy port.
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The driver checks if the lower level driver supports get_stats, and if
so calls it to get the updated statistics, otherwise takes from the
current netdevice stats object.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Reviewed-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Currently the RoCE GID management uses the ib_wq to do add and delete new GIDs
according to the netdev events.
The ib_wq isn't an ordered workqueue and thus two work elements can be executed
concurrently which will result in unexpected behavior and inconsistency of the
GIDs cache content.
Example:
ifconfig eth1 11.11.11.11/16 up
This command will invoke the following netdev events in the following order:
1. NETDEV_UP
2. NETDEV_DOWN
3. NETDEV_UP
If (2) and (3) will be executed concurrently or in reverse order, instead of
having a new GID with 11.11.11.11 IP, we will end up without any new GIDs.
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The failure in creation of debugfs entries for mr_cache left entries,
which were already created.
It caused to mismatch and misguiding for the end users. The solution
is to clean mr_cache debugfs root, so no leftovers will be in the
system. In addition, let's document why the error is not needed to be
forwarded to user in case of failure.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
There are no users for IB_QP_CREATE_USE_GFP_NOIO flag,
so let's remove it.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The caller to the driver marks GFP_NOIO allocations with help
of memalloc_noio-* calls now. This makes redundant to pass down
to the driver gfp flags, which can be GFP_KERNEL only.
The patch removes the gfp flags argument and updates all driver paths.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The caller to the driver marks GFP_NOIO allocations with help
of memalloc_noio-* calls now. This makes redundant to pass down
to the driver gfp flags, which can be GFP_KERNEL only.
The patch removes the gfp flags argument and updates all driver paths.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Commit 21caf2fc1931 ("mm: teach mm by current context info to not do I/O
during memory allocation") added the memalloc_noio_(save|restore) functions
to enable people to modify the MM behavior by disabling I/O during memory
allocation. This was further extended in Fixes: 934f3072c17c ("mm: clear
__GFP_FS when PF_MEMALLOC_NOIO is set"). memalloc_noio_* functions prevent
allocation paths recursing back into the filesystem without explicitly
changing the flags for every allocation site.
However the IPoIB hasn't been keeping up with the changes and missed
completely these memalloc_noio_* calls. This led to update of
allocation site with special QP creation flag, see commit 09b93088d750
("IB: Add a QP creation flag to use GFP_NOIO allocations"), while this
flag is supported by small number of drivers in IB stack.
Let's change it by updating to memalloc_noio_* calls and allow
for every driver underneath enjoy NOIO allocations.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch checks if there is a driver below that
needs to be updated on the new MTU and calls it
accordingly.
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Reviewed by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The msleep(1) may do not sleep 1 ms as expected
and will sleep longer. The simple conversion from
msleep to usleep_range between 1ms and 2ms can solve an
issue.
The full and comprehensive explanation can be found at [1] and [2].
[1] https://lkml.org/lkml/2007/8/3/250
[2] Documentation/timers/timers-howto.txt
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch makes use of IB core's ib_modify_qp_with_udata function that
also resolves the DMAC and handles udata.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch adds new function ib_modify_qp_with_udata so that
uverbs layer can avoid handling L2 mac address at verbs layer
and depend on the core layer to resolve the mac address consistently
for all required QPs.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Pull sparc fixes from David Miller:
- Fix DMA regression in 4.13 merge window, only certain chips can do
64-bit DMA. From Dave Dushar.
- Correct cpu cross-call algorithm to correctly detect stalled or stuck
remote cpus, from Jane Chu.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Measure receiver forward progress to avoid send mondo timeout
SPARC64: Fix sun4v DMA panic
When req->rsk_listener is NULL, sk_to_full_sk() returns
NULL too, so we have to check its return value against
NULL here.
Fixes: 40304b2a1567 ("bpf: BPF support for sock_ops")
Reported-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Cc: Lawrence Brakmo <brakmo@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull irq fix from Thomas Gleixner:
"Fix the fallout from reworking the locking and resource management in
request/free_irq()"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Keep chip buslock across irq_request/release_resources()
Pull SMP fix from Thomas Gleixner:
"Replace the bogus BUG_ON in the cpu hotplug code"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smp/hotplug: Replace BUG_ON and react useful
The regmap support for w1 was added shortly before a reorganization of
the w1 headers. While this was noticed before the merge window and
efforts made to get it resolved in what was sent that managed to fall
through the cracks, this cleans up and updates things so we look for the
header in the new location.
It didn't cause build failures as the driver that's going to be the
first user got held up with other review issues.
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Merge tag 'regmap-fix-w1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"Fix build due to w1 header refactoring
The regmap support for w1 was added shortly before a reorganization of
the w1 headers. While this was noticed before the merge window and
efforts made to get it resolved in what was sent that managed to fall
through the cracks, this cleans up and updates things so we look for
the header in the new location.
It didn't cause build failures as the driver that's going to be the
first user got held up with other review issues"
* tag 'regmap-fix-w1-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: regmap-w1: Fix build troubles
This is actually just a small set of mainly bug fixes for the original
merge window code plus a few trivial updates and qedi boot from SAN
support feature patch.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is actually just a small set of mainly bug fixes for the original
merge window code plus a few trivial updates and qedi boot from SAN
support feature patch"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: libfc: pass an error pointer to fc_disc_error()
scsi: hisi_sas: make several const arrays static
scsi: qla2xxx: Off by one in qlt_ctio_to_cmd()
scsi: sg: fix SG_DXFER_FROM_DEV transfers
scsi: virtio_scsi: always read VPD pages for multiqueue too
scsi: qedf: fix spelling mistake: "offlading" -> "offloading"
scsi: qedi: fix another spelling mistake: "alloction" -> "allocation"
scsi: isci: fix typo in function names
scsi: cxlflash: return -EFAULT if copy_from_user() fails
scsi: qedi: Add support for Boot from SAN over iSCSI offload
Patches that update the drivers/acpi/nfit/ directory need to be copied
to the nvdimm mailing list. The drivers/acpi/nfit* glob has been broken
ever since the nfit driver source was refactored into multiple files
under the drivers/acpi/nfit/ directory.
Reported-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
nfit_init() calls nfit_mce_register() on module load. When the module
load fails the nfit mce decoder is not unregistered. The module's
memory is freed leaving the decoder chain referencing junk. This will
cause panics as future registrations will reference the free'd memory.
Unregister the nfit mce decoder on module init failure.
[v2]: register and then unregister mce handler to avoid losing mce events
[v3]: also cleanup nfit workqueue
Fixes: 6839a6d96f4e ("nfit: do an ARS scrub on hitting a latent media error")
Cc: <stable@vger.kernel.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: "Lee, Chun-Yi" <joeyli.kernel@gmail.com>
Cc: Linda Knippers <linda.knippers@hpe.com>
Cc: lszubowi@redhat.com
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Carpenter reports:
The patch 7b6be8444e0f: "dax: refactor dax-fs into a generic provider
of 'struct dax_device' instances" from Apr 11, 2017, leads to the
following static checker warning:
drivers/dax/device.c:643 devm_create_dev_dax()
warn: passing zero to 'ERR_PTR'
Fix the case where we inadvertently leak 0 to ERR_PTR() by setting at
every error case, and make it clear that 'count' is never 0.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
__add_badblock_range() does not account sector alignment when
it sets 'num_sectors'. Therefore, an ARS error record range
spanning across two sectors is set to a single sector length,
which leaves the 2nd sector unprotected.
Change __add_badblock_range() to set 'num_sectors' properly.
Cc: <stable@vger.kernel.org>
Fixes: 0caeef63e6d2 ("libnvdimm: Add a poison list and export badblocks")
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Several variables had their types changed from unsigned long to u32,
but the printk()-style format to print them wasn't updated, leading to:
arch/blackfin/kernel/flat.c: In function 'bfin_get_addr_from_rp':
arch/blackfin/kernel/flat.c:35:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'u32' [-Wformat]
arch/blackfin/kernel/flat.c: In function 'bfin_put_addr_at_rp':
arch/blackfin/kernel/flat.c:80:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'u32' [-Wformat]
Fixes: 468138d78510688f ("binfmt_flat: flat_{get,put}_addr_from_rp() should be able to fail")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The offset of the entry in struct rpc_version has to match the version
number.
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Fixes: 1c5876ddbdb4 ("sunrpc: move p_count out of struct rpc_procinfo")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reported-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
GCC 7 added a new -Wimplicit-fallthrough warning. It's only enabled
with W=1, but since linux/jhash.h is included in over hundred places
(including other global headers) it seems worthwhile fixing this
warning.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When resolving an IP address that is on the host of the caller the
result from querying the routing table is the loopback device. This is
not a valid response, because it doesn't represent the RDMA device and
the port.
Therefore, callers need to check the resolved device and if it is a
loopback device find an alternative way to resolve it. To avoid this we
make sure that the response from rdma_resolve_ip() will not be the
loopback device.
While that, we fix an static checker warning about dereferencing an
unintitialized pointer using the same solution as in commit abeffce90c7f
("net/mlx5e: Fix a -Wmaybe-uninitialized warning") as a reference.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In function addr_resolve() the namespace is a required input parameter
and not an output. It is passed later for searching the routing table
and device addresses. Also, it shouldn't be copied back to the caller.
Fixes: 565edd1d5555 ('IB/addr: Pass network namespace as a parameter')
Cc: <stable@vger.kernel.org> # v4.3+
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Under heavy iser target(scst) start/stop stress during login/logout
on iser intitiator side happened trace call provided below.
The function iscsi_iser_slave_alloc iser_conn pointer could be NULL,
due to the fact that function iscsi_iser_conn_stop can be called before
and free iser connection. Let's protect that flow by introducing global mutex.
BUG: unable to handle kernel paging request at 0000000000001018
IP: [<ffffffffc0426f7e>] iscsi_iser_slave_alloc+0x1e/0x50 [ib_iser]
Call Trace:
? scsi_alloc_sdev+0x242/0x300
scsi_probe_and_add_lun+0x9e1/0xea0
? kfree_const+0x21/0x30
? kobject_set_name_vargs+0x76/0x90
? __pm_runtime_resume+0x5b/0x70
__scsi_scan_target+0xf6/0x250
scsi_scan_target+0xea/0x100
iscsi_user_scan_session.part.13+0x101/0x130 [scsi_transport_iscsi]
? iscsi_user_scan_session.part.13+0x130/0x130 [scsi_transport_iscsi]
iscsi_user_scan_session+0x1e/0x30 [scsi_transport_iscsi]
device_for_each_child+0x50/0x90
iscsi_user_scan+0x44/0x60 [scsi_transport_iscsi]
store_scan+0xa8/0x100
? common_file_perm+0x5d/0x1c0
dev_attr_store+0x18/0x30
sysfs_kf_write+0x37/0x40
kernfs_fop_write+0x12c/0x1c0
__vfs_write+0x18/0x40
vfs_write+0xb5/0x1a0
SyS_write+0x55/0xc0
Fixes: 318d311e8f01 ("iser: Accept arbitrary sg lists mapping if the device supports it")
Cc: <stable@vger.kernel.org> # v4.5+
Signed-off-by: Vladimir Neyelov <vladimirn@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimbeg.me>
Signed-off-by: Doug Ledford <dledford@redhat.com>
