XSAVE support for KVM is already using host_xcr0 & KVM_SUPPORTED_XCR0 as
a "dynamic" version of KVM_SUPPORTED_XCR0.
However, this is not enough because the MPX bits should not be presented
to the guest unless kvm_x86_ops confirms the support. So, replace all
instances of host_xcr0 & KVM_SUPPORTED_XCR0 with a new function
kvm_supported_xcr0() that also has this check.
Note that here:
if (xstate_bv & ~KVM_SUPPORTED_XCR0)
return -EINVAL;
if (xstate_bv & ~host_cr0)
return -EINVAL;
the code is equivalent to
if ((xstate_bv & ~KVM_SUPPORTED_XCR0) ||
(xstate_bv & ~host_cr0)
return -EINVAL;
i.e. "xstate_bv & (~KVM_SUPPORTED_XCR0 | ~host_cr0)" which is in turn
equal to "xstate_bv & ~(KVM_SUPPORTED_XCR0 & host_cr0)". So we should
also use the new function there.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- one regression fix for reducing the amount of ucontrol userspace exits
- get rid of BUG_ONs in hot inner loops
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Merge tag 'kvm-s390-20140317' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
Two patches:
- one regression fix for reducing the amount of ucontrol userspace exits
- get rid of BUG_ONs in hot inner loops
Add emulation for 0x66 prefixed instruction of 0f 28 opcode
that has been added earlier.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
With current match design every invocation of the connlimit_match
function means we have to perform (number_of_conntracks % 256) lookups
in the conntrack table [ to perform GC/delete stale entries ].
This is also the reason why ____nf_conntrack_find() in perf top has
> 20% cpu time per core.
This patch changes the storage to rbtree which cuts down the number of
ct objects that need testing.
When looking up a new tuple, we only test the connections of the host
objects we visit while searching for the wanted host/network (or
the leaf we need to insert at).
The slot count is reduced to 32. Increasing slot count doesn't
speed up things much because of rbtree nature.
before patch (50kpps rx, 10kpps tx):
+ 20.95% ksoftirqd/0 [nf_conntrack] [k] ____nf_conntrack_find
+ 20.50% ksoftirqd/1 [nf_conntrack] [k] ____nf_conntrack_find
+ 20.27% ksoftirqd/2 [nf_conntrack] [k] ____nf_conntrack_find
+ 5.76% ksoftirqd/1 [nf_conntrack] [k] hash_conntrack_raw
+ 5.39% ksoftirqd/2 [nf_conntrack] [k] hash_conntrack_raw
+ 5.35% ksoftirqd/0 [nf_conntrack] [k] hash_conntrack_raw
after (90kpps, 51kpps tx):
+ 17.24% swapper [nf_conntrack] [k] ____nf_conntrack_find
+ 6.60% ksoftirqd/2 [nf_conntrack] [k] ____nf_conntrack_find
+ 2.73% swapper [nf_conntrack] [k] hash_conntrack_raw
+ 2.36% swapper [xt_connlimit] [k] count_tree
Obvious disadvantages to previous version are the increase in code
complexity and the increased memory cost.
Partially based on Eric Dumazets fq scheduler.
Reviewed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
currently returns 1 if they're the same. Make it work like mem/strcmp
so it can be used as rbtree search function.
Reviewed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Since commit 7c470539c9
(s390/kvm: avoid automatic sie reentry) we will run through the C code
of KVM on host interrupts instead of just reentering the guest. This
will result in additional ucontrol exits (at least HZ per second). Let
handle a 0 intercept in the kernel and dont return to userspace,
even if in ucontrol mode.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: stable@vger.kernel.org
The BUG_ON in kvm-s390.c is unreachable, as we get the vcpu per common code,
which itself does this from the private_data field of the file descriptor,
and there is no KVM_UNCREATE_VCPU.
The __{set,unset}_cpu_idle BUG_ONs are not triggerable because the vcpu
creation code already checks against KVM_MAX_VCPUS.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
If CONFIG_REGULATOR is not set, devm_regulator_get() returns NULL,
so use IS_ERR_OR_NULL() macro for checks.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
My objective is to be able to totally discriminate CAN ports on multi-port
cards via udev so as to rename them to semantically interesting/unique names
for my system (e.g., "ecuCAN" and "auxCAN" instead of "can0" and "can1").
The following patch assigns the dev_id field to match the channel number on all
multi-channel devices. I can only test my two-port Peak PCI card, but it works
as expected: ATTRS{dev_id} now expresses the port number and my udev rules now
unambiguously pick out and rename my individual CAN ports.
Signed-off-by: Christopher R. Baker <cbaker@rec.ri.cmu.edu>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> [PEAK PCAN-USB pro and EMS PCMCIA]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
CAN interfaces only support MTU values of 16 (CAN 2.0) and 72 (CAN FD).
Setting the MTU to other values is pointless but it does not really hurt.
With the introduction of the CAN FD support in drivers/net/can a new
function to switch the MTU for CAN FD has been introduced.
This patch makes use of this can_change_mtu() function to check for correct
MTU settings also in legacy CAN (2.0) devices.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This patch fixes these error messages found by checkpatch.pl:
ERROR: "foo* bar" should be "foo *bar"
Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
This patch fixes "do not use // C99 comments"
errors in Typedefs.h
Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl issue with
line over 80 characters in power.c
Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl issue with
line over 80 characters in nokia_fw-bcm.c
Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl issues with trailing statement to next line in wb35reg.c
Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl issues with space prohibited between function name and
open parenthesis in libsbew.h
Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
This patch fixes "quoted string split across lines warning" warning in
dgnc_cls.c
Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl issue with line over 80 characters in midi.c
Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl errors:
ERROR: do not initialise statics to 0 or NULL
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix pointer declarations as the codingStyle of the kernel recommends in
ieee80211/ieee80211_softmac.c
Fix checkpatch.pl errors:
ERROR: "foo* bar" should be "foo *bar"
ERROR: "(foo*)" should be "(foo *)"
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Move trailing statements to next line as the codingStyle of
the kernel recommends.
Fix checkpatch.pl errors:
ERROR: trailing statements should be on next line
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Delete some whitespaces (whitespace before a quoted newline, space
at the start of a line and space before a tabs) as the codingStyle of
the kernel recommends.
Fix checkpatch.pl errors:
WARNING: unnecessary whitespace before a quoted newline
WARNING: please, no spaces at the start of a line
WARNING: please, no space before tabs
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Add whitespaces around '&', '||' and '&&' as the codingStyle of the kernel
recommends.
Fix checkpatch.pl errors:
ERROR: spaces required around that '||' (ctx:VxV)
ERROR: spaces required around that '&&' (ctx:VxV)
ERROR: need consistent spacing around '&'
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Add whitespaces around '+=' and '==' and fix coding style in these lines
as the codingStyle of the kernel recommends.
Fix checkpatch.pl errors:
ERROR: spaces required around that '+=' (ctx:VxV
ERROR: spaces required around that '==' (ctx:VxW)
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl error:
ERROR: code indent should use tabs where possible
Also fix some problems with tabs in an if-statement.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Add whitespaces around commas and fix coding style in these lines as
the codingStyle of the kernel recommends.
Fix checkpatch.pl errors:
ERROR: space required after that ','
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Add whitespaces around '+', '-' and '=' as the codingStyle of the kernel
recommends.
Fix checkpatch.pl errors:
ERROR: need consistent spacing around '+'
ERROR: spaces required around that '=' (ctx:VxV)
ERROR: need consistent spacing around '-'
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Delete spaces prohibited before semicolon, before ':' and after '!' and
fix coding style in these lines when It is necessary.
Fix checkpàtch.pl error and warning messages:
WARNING: space prohibited before semicolon
ERROR: space prohibited before that ':'
ERROR: space prohibited after that '!'
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Delete space prohibited after open parenthesis and fix coding style in
the lines changed when It is necessary
Fix checkpatch.pl errors:
ERROR: space prohibited after that open parenthesis '('
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Delete space prohibited between function name and open parenthesis and
fix coding style in the lines changed when It is necessary
Fix checkpatch.pl warning message:
WARNING: space prohibited between function name and open parenthesis '('.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Add a space required before the open parenthesis in while and for
structures as the codingStyle of the kernel recommends.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Add a space required before the open parenthesis in conditional
statements as the codingStyle of the kernel recommends.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Delete braces are not necessary for single statement blocks and fix
coding style in these lines when It is necessary.
Fix checkpatch.pl warning:
WARNING: braces {} are not necessary for single statement blocks
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix whitespaces in do-while statements and while statements as
the codingStyle of the kernel recommends in
ieee80211/ieee80211_softmac.c
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix whitespaces around else-statements and fix coding style in the
lines when It is necessary as the codingStyle of the kernel recommends
in ieee80211/ieee80211_softmac.c
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix whitespaces around braces in if-statement as the
codingStyle of the kernel recommends in ieee80211/ieee80211_softmac.c
Also, fix coding style in these lines when It is necessary.
Fix checkpatch.pl errors:
ERROR: space required before the open brace '{'
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Remove unused functions rsn_authen_cipher_suite() and
ext_ieee80211_send_beacon_wq() from ieee80211_softmac.c.
Fix sparse warnings:
drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:27:11: warning: ‘rsn_authen_cipher_suite’ defined but not used [-Wunused-variable]
drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:327:13: warning: ‘ext_ieee80211_send_beacon_wq’ defined but not used [-Wunused-function]
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Move comments from inside if conditionals to the lines above the
if-statement. Also delete unnecessary whitespace in these lines.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Convert style of comments from C99-style to C89 and fix alignment in
these lines as the CodingStyle recommends.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Remove unnecessary blank lines in ieee80211/ieee80211_softmac.c
(and add some necessary blank lines).
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Delete all commented code in ieee80211/ieee80211_softmac.c
that are not necessary.
Also, remove the unused variable referenced in the commented code.
Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
This patch removes the following checkpatch.pl warning in tcm825x.h
Warning : missing space after return type
Signed-off-by: Uma Sharma <uma.sharma523@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
This patch removes the following checkpatch.pl warning in sdr-msi3101.c
Warning : Unnecessary space after function pointer name
Signed-off-by: Uma Sharma <uma.sharma523@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
This patch fixes no spaces before tabs warning in crystalhd_misc.h
Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl issues with line over
80 characters in go7007-v4l2.c
Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Fix checkpatch.pl issue with
line over 80 characters in ethernet-mdio.c
Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
This patch removes unreachable code line and
unnecessary braces in Bcmchar.c
Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
