IPv6 counters updates use a different macro than IPv4.
Fixes: 36cbb2452c ("udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rick Jones <rick.jones2@hp.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To report flow control tx/rx settings accurately regardless of autoneg
setting, we should use link_info->req_flow_ctrl. Before this patch,
the reported settings were only correct when autoneg was on.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The typo caused the wrong flow control bit to be set.
Reported by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The size of every padded firmware message is specified in the first
HWRM_VER_GET response message. Use this value to pad every message
after that.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The existing code does the following:
allocate completion ring
initialize completion ring doorbell
disable interrupts on this completion ring by writing to the doorbell
We can have a race where firmware sends an asynchronous event to the host
after completion ring allocation and before doorbell is initialized.
When this happens driver can crash while ringing the doorbell using
uninitialized value as part of handling the IRQ/napi request.
Signed-off-by: Prashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 9b07e27f88 ("perf inject: Add jitdump mmap injection support")
incorrectly assumed that PowerPC is big endian only.
Simplify things by consolidating the define of GEN_ELF_ENDIAN and checking
for __BYTE_ORDER == __BIG_ENDIAN.
The PowerPC checks were also incorrect, they do not match what gcc
emits. We should first look for __powerpc64__, then __powerpc__.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Carl Love <cel@us.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Fixes: 9b07e27f88 ("perf inject: Add jitdump mmap injection support")
Link: http://lkml.kernel.org/r/20160329175944.33a211cc@kryten
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The 4b3a321223 ("perf hists browser: Support flat callchains") commit
over-aggressively tried to optimize callchain_node__init_have_children().
That lead to --tui mode not allowing to expand call chain elements if a
call chain element had only one parent. That's why --inverted callgraphs
looked halfway sane, but plain ones didn't.
Revert that individual optimization, it wasn't really related to the
rest of the commit.
Signed-off-by: Andres Freund <andres@anarazel.de>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Fixes: 4b3a321223 ("perf hists browser: Support flat callchains")
Link: http://lkml.kernel.org/r/20160330190245.GB13305@awork2.anarazel.de
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
There is an issue when we use mavtap over team:
When we replug nic links from team0, the real nics's mc list will not
include the maddr for macvtap any more. then we can't receive pkts to
macvtap device, as they are filterred by mc list of nic.
In Bonding Driver, it syncs the uc/mc addrs in bond_enslave().
We will fix this issue on team by adding the port's uc/mc addrs sync in
team_port_add.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the following patch,
f2fs: split journal cache from curseg cache
journal cache is split from curseg cache. So IO write statistics should be
retrived from journal cache but not curseg->sum_blk. Otherwise, it will
get 0, and the stat is lost.
Signed-off-by: Shuoran Liu <liushuoran@huawei.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
In the encrypted symlink case, we should check its corrupted symname after
decrypting it.
Otherwise, we can report -ENOENT incorrectly, if encrypted symname starts with
'\0'.
Cc: stable 4.5+ <stable@vger.kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This patch should fix the issues seen with a recent fix to prevent
tunnel-in-tunnel frames from being generated with GRO. The fix itself is
correct for now as long as we do not add any devices that support
NETIF_F_GSO_GRE_CSUM. When such a device is added it could have the
potential to mess things up due to the fact that the outer transport header
points to the outer UDP header and not the GRE header as would be expected.
Fixes: fac8e0f579 ("tunnels: Don't apply GRO to multiple layers of encapsulation.")
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
in the case where qed_slowpath_irq_req is not called, rc is not
assigned and so qed_int_igu_enable will return a garbage value.
Fix this by initializing rc to 0.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Somehow my patch for commit cea8768f33 ("sctp: allow
sctp_transmit_packet and others to use gfp") missed two important
chunks, which are now added.
Fixes: cea8768f33 ("sctp: allow sctp_transmit_packet and others to use gfp")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-By: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When NET_SWITCHDEV=n, switchdev_port_attr_set will return -EOPNOTSUPP,
we should ignore this error code and continue to set the ageing time.
Fixes: c62987bbd8 ("bridge: push bridge setting ageing_time down to switchdev")
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Acked-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull crypto fix from Herbert Xu:
"This fixes a bug in pkcs7_validate_trust and its users where the
output value may in fact be taken from uninitialised memory"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argument
This fixes a bug from the configfs cleanup.
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Merge tag 'dlm-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
Pull dlm fix from David Teigland:
"This fixes a bug from the configfs cleanup"
* tag 'dlm-4.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
dlm: config: Fix ENOMEM failures in make_cluster()
Josh Boyer reported that my recent change to uapi/linux/swab.h broke the Qemu build:
bc27fb68aa ("include/uapi/linux/byteorder, swab: force inlining of some byteswap operations")
Unfortunately, UAPI headers don't include compiler.h so fixing it there is not enough,
add an __always_inline definition to uapi/linux/stddef.h instead.
Testcase: "make headers_install" and try to compile this:
#include <linux/swab.h>
void main() {}
Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: linux-kernel@vger.kernel.org
Link: http://lkml.kernel.org/r/1459289697-12875-1-git-send-email-dvlasenk@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Here on Ubuntu/precise I have GNU/coreutils v8.13 installed
where 'basename -s' is not supported.
The result is that run_tests.sh is not done properly.
How to reproduce:
$ cd $BUILD_DIR
$ LC_ALL=C make -C tools/ liblockdep
$ cd tools/lib/lockdep/
$ LC_ALL=C ./run_tests.sh
basename: invalid option -- 's'
Try `basename --help' for more information.
... timeout: failed to run command `./tests/': Permission denied
FAILED!
rm: cannot remove `tests/': Is a directory
Due to unsupported basename the tests programs are not generated
and cannot be removed.
Fix this by doing a compatible basename invocation and check for
the existence of generated tests programs.
For more details see this LKML thread:
http://marc.info/?t=145906667300001&r=1&w=2
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sasha Levin <sasha.levin@oracle.com> (maintainer:LIBLOCKDEP)
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>
Link: http://lkml.kernel.org/r/1459326169-7009-1-git-send-email-sedat.dilek@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- Add missing initialization of perf_sample.cpumode in synthesized samples,
affects jitdump, records for pre-existing threads and records synthesized
from processor trace data, noticed while testing intel_pt events with
'perf script' (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo-20160329' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fix from Arnaldo Carvalho de Melo:
- Add missing initialization of perf_sample.cpumode in synthesized samples,
affects jitdump, records for pre-existing threads and records synthesized
from processor trace data, noticed while testing intel_pt events with
'perf script' (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
platform_get_resource() can return NULL, thus add NULL test to prevent NULL
pointer dereference.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Current code uses a uninitialized spin lock.
bgpio_init() already initialized a spin lock, so let's switch to use
&gc->bgpio_lock instead and remove the lock from struct men_z127_gpio.
Fixes: f436bc2726 "gpio: add driver for MEN 16Z127 GPIO controller"
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fix support for 16 bit source/dest port matches in ixgbe model.
u32 uses a single 32-bit key value for both source and destination ports
starting at offset 0. So replace the 2 functions with a single function
that takes this key value/mask to program both source and dest ports.
Verified with the following filter:
#tc qdisc add dev p4p1 ingress
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 1: u32 divisor 1
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 800:0:10 u32 ht 800: link 1: \
offset at 0 mask 0f00 shift 6 plus 0 eat match ip protocol 6 ff
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 1:0:10 u32 ht 1: \
match tcp src 1024 ffff match tcp dst 80 ffff action drop
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 1:0:11 u32 ht 1: \
match tcp src 1025 ffff action drop
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 1:0:12 u32 ht 1: \
match tcp dst 81 ffff action drop
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Remove the incorrect check for mask in ixgbe_configure_clsu32 and
drop the 'mask' field that is not required in struct ixgbe_mat_field
Verified with the following filters:
#tc qdisc add dev p4p1 ingress
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 800:0:1 u32 ht 800: \
match ip dst 10.0.0.1/8 match ip src 10.0.0.2/8 action drop
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 800:0:2 u32 ht 800: \
match ip dst 11.0.0.1/16 match ip src 11.0.0.2/16 action drop
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 800:0:3 u32 ht 800: \
match ip dst 12.0.0.1/24 match ip src 12.0.0.2/24 action drop
#tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
handle 800:0:4 u32 ht 800: \
match ip dst 13.0.0.1/32 match ip src 13.0.0.2/32 action drop
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Check for handle ids when adding/deleting hash nodes OR adding/deleting
filter entries and limit them to max number of links or header nodes
supported(IXGBE_MAX_LINK_HANDLE).
Start from bit 0 when setting hash table bit-map.(adapter->tables)
Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This function is only used in ixgbe_main.c
Resolves a "missing prototype" warning when building the driver with W=1
Reported-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Return error when a MAC address change is rejected by the PF.
This will prevent the user from modifying the MAC address when
that operation is not permitted.
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Calling dev_close() causes IFF_UP to be cleared which will remove the
interfaces routes and some addresses. That's probably not what the user
intended when running the offline selftest. Besides this does not happen
if the interface is brought down before the test, so the current
behaviour is inconsistent.
Instead call the net_device_ops ndo_stop function directly and avoid
touching IFF_UP at all.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Calling dev_close() causes IFF_UP to be cleared which will remove the
interfaces routes and some addresses. That's probably not what the user
intended when running the offline selftest. Besides this does not happen
if the interface is brought down before the test, so the current
behaviour is inconsistent.
Instead call the net_device_ops ndo_stop function directly and avoid
touching IFF_UP at all.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Use udelay instead of usleep_range because this can be called while
a lock is held.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The ATR code was assuming that it would be able to use tcp_hdr for
every TCP frame that came through. However this isn't the case as it
is possible for a frame to arrive that is TCP but sent through something
like a raw socket. As a result the driver was setting up bad filters in
which tcp_hdr was really pointing to the network header so the data was
all invalid.
In order to correct this I have added a bit of parsing logic that will
determine the TCP header location based off of the network header and
either the offset in the case of the IPv4 header, or a walk through the
IPv6 extension headers until it encounters the header that indicates
IPPROTO_TCP. In addition I have added checks to verify that the lowest
protocol provided is recognized as IPv4 or IPv6 to help mitigate raw
sockets using ETH_P_ALL from having ATR applied to them.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
The VXLAN port number should be stored in network order instead of in host
order as it is accessed from the hot-path in ATR. This way we can avoid
having to do any byte swaps in order to validate the port number.
I moved the vxlan_port value into a hole in the read-mostly region of the
adapter struct. This way it should be in a warm cache-line instead of in
some isolated region in memory when it needs to be accessed.
In addition I went through and stripped a bunch of unneeded ifdef flags
since having an extra variable present doesn't really hurt anything and
makes the code easier to read. I also went through and dropped the
NETIF_F_RXCSUM flag which was being set in hw_encap_features but provides
no value as the flag is not evaluated in the Rx path.
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
commit c9f53e63c2 ("ixgbe: Refactor MAC address configuration code")
introduced code that doesn't set HW register RAR0 to default mac address
but FF:FF:FF:FF:FF:FF. Due to this, ixgbe HW discards all incoming packets
that doesn't have destination mac address equals to FF:FF:FF:FF:FF:FF.
This commit sets RAR0 correctly to default HW mac address.
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Tested-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Drivers for these don't exist yet so we will add them as fixed clocks
so we don't BUG() if we change clocks that reference these clocks.
Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
When this was added not all the remaining defines were switched over to
use enums, so let's complete that process here
Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Matthew McClintock <mmcclint@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The qcom_reset_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The rst_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The sunxi_ve_reset_ops, sun9i_mmc_reset_ops, and sunxi_usb_reset_ops
structures are never modified. Make them const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The atlas7_rst_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The rockchip_softrst_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The mmp_clk_reset_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The mtk_reset_ops structure is never modified. Make it const.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
In 473398a21d ("perf tools: Add cpumode to struct perf_sample"), I
missed some places where perf_sample fields are directly initialized in
addition to what is done in perf_evsel__parse_sample(), namely when
synthesizing PERF_RECORD_{MMAP*,COMM,FORK,EXIT} for pre-existing threads
and also in intel_pt and intel_bts when synthesizing events from
processor trace, the jitdump code also was affected, fix it.
The problem was noticed with running:
# perf record -e intel_pt//u true
# perf script
Where the samples wouldn't get resolved because perf_sample.cpumode
would be left as zero, i.e. PERF_RECORD_MISC_CPUMODE_UNKNOWN, not
resolving as kernel, hypervisor or user cpu modes.
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 473398a21d ("perf tools: Add cpumode to struct perf_sample")
Link: http://lkml.kernel.org/n/tip-n5sdauxgk24d5nun8kuuu2mh@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
If cpu_name_string() is used in non-atomic context when preemption is
enabled, it can trigger a BUG such as this one:
BUG: using smp_processor_id() in preemptible [00000000] code: unaligned/156
caller is __show_regs+0x1e4/0x330
CPU: 2 PID: 156 Comm: unaligned Tainted: G W 4.3.0-00366-ga3592179816d-dirty #1501
Stack : ffffffff80900000 ffffffff8019bc18 000000000000005f ffffffff80a20000
0000000000000000 0000000000000009 ffffffff8019c0e0 ffffffff80835648
a8000000ff2bdec0 ffffffff80a1e628 000000000000009c 0000000000000002
ffffffff80840000 a8000000fff2ffb0 0000000000000020 ffffffff8020e43c
a8000000fff2fcf8 ffffffff80a20000 0000000000000000 ffffffff808f2607
ffffffff8082b138 ffffffff8019cd1c 0000000000000030 ffffffff8082b138
0000000000000002 000000000000009c 0000000000000000 0000000000000000
0000000000000000 a8000000fff2fc40 0000000000000000 ffffffff8044dbf4
0000000000000000 0000000000000000 0000000000000000 ffffffff8010c400
ffffffff80855bb0 ffffffff8010d008 0000000000000000 ffffffff8044dbf4
...
Call Trace:
[<ffffffff8010d008>] show_stack+0x90/0xb0
[<ffffffff8044dbf4>] dump_stack+0x84/0xe0
[<ffffffff8046d4ec>] check_preemption_disabled+0x10c/0x110
[<ffffffff8010c40c>] __show_regs+0x1e4/0x330
[<ffffffff8010d060>] show_registers+0x28/0xc0
[<ffffffff80110748>] do_ade+0xcc8/0xce0
[<ffffffff80105b84>] resume_userspace_check+0x0/0x10
This is possible because cpu_name_string() is used by __show_regs(),
which is used by both show_regs() and show_registers(). These two
functions are used by various exception handling functions, only some of
which ensure that interrupts or preemption is disabled.
However the following have interrupts explicitly enabled or not
explicitly disabled:
- do_reserved() (irqs enabled)
- do_ade() (irqs not disabled)
This can be hit by setting /sys/kernel/debug/mips/unaligned_action to 2,
and triggering an address error exception, e.g. an unaligned access or
access to kernel segment from user mode.
To fix the above cases, use raw_smp_processor_id() instead. It is
unusual for CPU names to be different in the same system, and even if
they were, its possible the process has migrated between the exception
of interest and the cpu_name_string() call anyway.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12212/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
remove the usage of removed irq_to_gpio() function. On pre-DB1200
boards, pass the actual carddetect GPIO number instead of the IRQ,
because we need the gpio to actually test card status (inserted or
not) and can get the irq number with gpio_to_irq() instead.
Tested on DB1300 and DB1500, this patch fixes PCMCIA on the DB1500,
which used irq_to_gpio().
Fixes: 832f5dacfa ("MIPS: Remove all the uses of custom gpio.h")
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-pcmcia@lists.infradead.org
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: stable@vger.kernel.org # v4.3+
Patchwork: https://patchwork.linux-mips.org/patch/12747/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Not my full time job anymore, but still maintaining it.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
A few defconfig updates got dropped on the floor during the merge window,
so I've rounded up the remainder here:
* Fix duplicate definition of MMC_BLOCK_MINORS and bump to 32 for
msm8916
* CPUFreq support for the Juno platform, using the MHU/SCPI interface
* Removal of the default command line, which assumed a console called
ttyAMA0
* Bits and pieces for the Hi6220 (96Boards HiKey)
Signed-off-by: Will Deacon <will.deacon@arm.com>
When Q_GETNEXTQUOTA was called for filesystem with quotas disabled
ocfs2_get_next_id() oopses. Fix the problem by checking early whether
the filesystem has quotas enabled.
Signed-off-by: Jan Kara <jack@suse.cz>
Eric Dumazet