| Commit message (Collapse) | Author | Age | Files | Lines |
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Internal hardware timers become inaccurate after link events. Clock
frequency switches performed by the CPMU fail to adjust timer
prescalers. The fix is to detect core clock frequency changes during
link events and adjust the timer prescalers accordingly.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Most 5784 / 5764 LED modes do not work as expected because of a hardware
bug. This patch forces the LED mode to be in MAC LED mode.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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New CPMU devices contend with the GPHY for power management. The GPHY
autopowerdown feature is enabled by default in the PHY and thus needs to
be disabled after every PHY reset.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds the LINK_SPEED mode to the list of CPMU modes that can
cause the loopback tests to fail. These bugs are planned to be fixed in
future revisions of the chip, so the patch qualifies the fixes as such.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Newer devices contain bootcode in the chip's private ROM area. This
bootcode is called selfboot. Selfboot can be patched in the device's
NVRAM and the patches can have several formats. In one particular
format, the checksum calculation needs to be slightly modified. This
patch adjusts the NVRAM test code for that case, and add support for the
missing formats.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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5784 and 5764 devices lock up when the link speed is 10Mbps, the CPMU
link speed mode is enabled, and the MAC clock is running at 1.5Mhz. The
fix is to run the MAC clock at faster speeds.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch corrects a bug where the ENABLE_APE flag was tested against
the wrong flag variable.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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5784 and 5764 devices fail to link / pass traffic after one load /
unload cycle. This happens because of a hardware bug in the new CPMU.
During normal operation, the MAC depends on the PHY clock being
available. When the PHY is powered down, the clock the MAC depends on
is disabled. The fix is to switch the MAC clock to an alternate source
before powering down the PHY, and to restore the MAC clock to the PHY
source upon device resume.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When 5761 devices boot the machine using PXEboot, PXE leaves the device
active when it terminates. The tg3 driver has code to detect this
condition and resets the device during initialization. On 5761 devices,
device resets involve sending a driver state update message to the APE
on the 5761. However, during this initialization stage, communications
to the APE registers have not yet been set up. The driver then
dereferences a NULL pointer and crashes the machine. The fix is to move
the APE register access setup earlier in the initialization code to
cover this condition.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Simplify some code by eliminating duplicate if-else clauses in
packet_do_bind().
Signed-off-by: Urs Thuermann <urs@isnogud.escape.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When I removed net-modules.txt because it only contained ancient
information I missed that many Kconfig entries pointed to this ancient
information.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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master.kernel.org:/pub/scm/linux/kernel/git/vxy/lksctp-dev
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In net/sctp/sm_statefuns.c::sctp_sf_abort_violation() we may leak
the storage allocated for 'abort' by returning from the function
without using or freeing it. This happens in case
"sctp_auth_recv_cid(SCTP_CID_ABORT, asoc)" is true and we jump to
the 'discard' label.
Spotted by the Coverity checker.
The simple fix is to simply move the creation of the "abort chunk"
to after the possible jump to the 'discard' label. This way we don't
even have to allocate the memory at all in the problem case.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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When the code calls uncork, trigger a queue flush, even
if the queue was not corked. Most callers that explicitely
cork the queue will have additinal checks to see if they
corked it. Callers who do not cork the queue expect packets
to flow when they call uncork.
The scneario that showcased this bug happend when we were not
able to bundle DATA with outgoing COOKIE-ECHO. As a result
the data just sat in the outqueue and did not get transmitted.
The application expected a response, but nothing happened.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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There is a small bug when we process a FWD-TSN. We'll deliver
anything upto the current next expected SSN. However, if the
next expected is already in the queue, it will take another
chunk to trigger its delivery. The fix is to simply check
the current queued SSN is the next expected one.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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SCTP-AUTH and future ADD-IP updates have a requirement to
do additional verification of parameters and an ability to
ABORT the association if verification fails. So, introduce
additional return code so that we can clear signal a required
action.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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Convert the custom hash list traversals to use hlist functions.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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A SCTP endpoint may have a lot of associations on them and walking
the list is fairly inefficient. Instead, use a hashed lookup,
and filter out the hash list based on the endopoing we already have.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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There is a possible race condition where the timer code will
free the association and the next packet in the queue will also
attempt to free the same association.
The example is, when we receive an ABORT at about the same time
as the retransmission timer fires. If the timer wins the race,
it will free the association. Once it releases the lock, the
queue processing will recieve the ABORT and will try to free
the association again.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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This patch adds a tunable that will allow ADD_IP to work without
AUTH for backward compatibility. The default value is off since
the default value for ADD_IP is off as well. People who need
to use ADD-IP with older implementations take risks of connection
hijacking and should consider upgrading or turning this tunable on.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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After learning more about rcu, it looks like the ADD-IP hadling
doesn't need to call call_rcu_bh. All the rcu critical sections
use rcu_read_lock, so using call_rcu_bh is wrong here.
Now, restore the local_bh_disable() code blocks and use normal
call_rcu() calls. Also restore the missing return statement.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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Commit d0ce92910bc04e107b2f3f2048f07e94f570035d broke several retransmit
cases including fast retransmit. The reason is that we should
only delay by rto while doing retranmists as a result of a timeout.
Retransmit as a result of path mtu discover, fast retransmit, or
other evernts that should trigger immidiate retransmissions got broken.
Also, since rto is doubled prior to marking of packets elegable for
retransmission, we never marked correct chunks anyway.
The fix is provide a reason for a given retransmission so that we
can mark chunks appropriately and to save the old rto value to do
comparisons against.
All regressions tests passed with this code.
Spotted by Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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If ASCONF chunk is bundled with other chunks as the first chunk, when
process the ASCONF parameters, full packet data will be process as the
parameters of the ASCONF chunk, not only the real parameters. So if you
send a ASCONF chunk bundled with other chunks, you will get an unexpect
result.
This problem also exists when ASCONF-ACK chunk is bundled with other chunks.
This patch fix this problem.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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Just fix the bad format of the comment in outqueue.c.
Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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...and fix a couple of bugs in the NBD, CIFS and OCFS2 socket handlers.
Looking at the sock->op->shutdown() handlers, it looks as if all of them
take a SHUT_RD/SHUT_WR/SHUT_RDWR argument instead of the
RCV_SHUTDOWN/SEND_SHUTDOWN arguments.
Add a helper, and then define the SHUT_* enum to ensure that kernel users
of shutdown() don't get confused.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Mark Fasheh <mark.fasheh@oracle.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit bea3348e (the NAPI changes) made sungem unconditionally enable
NAPI when resuming and unconditionally disable when suspending, this,
however, makes napi_disable() hang when suspending when the interface
was taken down before suspend because taking the interface down also
disables NAPI. This patch makes touching the napi struct in
suspend/resume code paths depend on having the interface up, thereby
fixing the hang on suspend.
The patch also moves the napi_disable() in gem_close() under the lock so
that the NAPI state is always modified atomically together with the
"opened" variable.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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fix sparse warnings "Using plain integer as NULL pointer"
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Userland neighbor discovery options are typically heavily involved with
the interface on which thay are received: add a missing ifindex field to
the original struct. Thanks to Rémi Denis-Courmont.
Signed-off-by: Pierre Ynard <linkfanel@yahoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While a signal is blocked, it must be posted even if its action is
SIG_IGN or is SIG_DFL with the default action to ignore. This works
right most of the time, but is broken when a sigwait (rt_sigtimedwait)
is in progress. This changes the early-discard check to respect
real_blocked. ~blocked is the set to check for "should wake up now",
but ~(blocked|real_blocked) is the set for "blocked" semantics as
defined by POSIX.
This fixes bugzilla entry 9347, see
http://bugzilla.kernel.org/show_bug.cgi?id=9347
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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As with commit 7fc90ec93a5eb71f4b08403baf5ba7176b3ec6b1 ("knfsd: nfsd:
call nfsd_setuser() on fh_compose(), fix nfsd4 permissions problem")
this is a case where we need to redo a security check in fh_verify()
even though the filehandle already has an associated dentry--if the
filehandle was created by fh_compose() in an earlier operation of the
nfsv4 compound, then we may not have done these checks yet.
Without this fix it is possible, for example, to traverse from an export
without the secure ports requirement to one with it in a single
compound, and bypass the secure port check on the new export.
While we're here, fix up some minor style problems and change a printk()
to a dprintk(), to make it harder for random unprivileged users to spam
the logs.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Reviewed-By: NeilBrown <neilb@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The v2/v3 acl code in nfsd is translating any return from fh_verify() to
nfserr_inval. This is particularly unfortunate in the case of an
nfserr_dropit return, which is an internal error meant to indicate to
callers that this request has been deferred and should just be dropped
pending the results of an upcall to mountd.
Thanks to Roland <devzero@web.de> for bug report and data collection.
Cc: Roland <devzero@web.de>
Acked-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Reviewed-By: NeilBrown <neilb@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This reverts commit 5adc5be7cd1bcef6bb64f5255d2a33f20a3cf5be.
Alexey Dobriyan reports that it causes huge slowdowns under some loads,
in his case a "mkfs.ext2" on a 30G partition. With the placement bias,
the mkfs took over four minutes, with it reverted it's back to about ten
seconds for Alexey.
Reported-and-tested-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: SVM: Intercept the 'invd' and 'wbinvd' instructions
KVM: x86 emulator: invd instruction
KVM: SVM: Defer nmi processing until switch to host state is complete
KVM: SVM: Fix SMP with kernel apic
KVM: x86 emulator: fix 'push imm8' emulation
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'invd' can destroy host data, and 'wbinvd' allows the guest to induce
long (milliseconds) latencies.
Noted by Ben Serebrin.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Emulate the 'invd' instruction (opcode 0f 08).
Signed-off-by: Avi Kivity <avi@qumranet.com>
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If we stgi() too soon, nmis can reach the processor even though interrupts
are disabled, catching it in a half-switched state. Delay the stgi() until
we're done switching.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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AP processor needs to reset to the SIPI vector, not normal INIT.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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'push imm8' found itself in the wrong switch somehow, so it is never executed.
This fixes Windows 2003 installation.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-virtio
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-virtio:
virtio: Force use of power-of-two for descriptor ring sizes
lguest: Fix lguest virtio-blk backend size computation
virtio: Fix used_idx wrap-around
virtio: more fallout from scatterlist changes.
virtio: fix vring_init for 64 bits
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The virtio descriptor rings of size N-1 were nicely set up to be
aligned to an N-byte boundary. But as Anthony Liguori points out, the
free-running indices used by virtio require that the sizes be a power
of 2, otherwise we get problems on wrap (demonstrated with lguest).
So we replace the clever "2^n-1" scheme with a simple "align to page
boundary" scheme: this means that all virtio rings take at least two
pages, but it's safer than guessing cache alignment.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This seems like an obvious typo but it's worked in the past because the virtio
blk frontend just ignores the length field on completion.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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The more_used() function compares the vq->vring.used->idx with last_used_idx.
Since vq->vring.used->idx is a 16-bit integer, and last_used_idx is an
unsigned int, this results in unpredictable behavior when vq->vring.used->idx
wraps around.
This patch corrects this by changing last_used_idx to the correct type.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This fixes OOPS in network driver when CONFIG_DEBUG_SG=y.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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This patch fixes a typo in vring_init(). This happens to work today in lguest
because the sizeof(struct vring_desc) is 16 and struct vring contains 3
pointers and an unsigned int so on 32-bit
sizeof(struct vring_desc) == sizeof(struct vring). However, this is no longer
true on 64-bit where the bug is exposed.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (39 commits)
[INET]: Small possible memory leak in FIB rules
[NETNS]: init dev_base_lock only once
[UNIX]: The unix_nr_socks limit can be exceeded
[AF_UNIX]: Convert socks to unix_socks in scan_inflight, not in callbacks
[AF_UNIX]: Make unix_tot_inflight counter non-atomic
[AF_PACKET]: Allow multicast traffic to be caught by ORIGDEV when bonded
ssb: Fix PCMCIA-host lowlevel bus access
mac80211: fix MAC80211_RCSIMPLE Kconfig
mac80211: make "decrypt failed" messages conditional upon MAC80211_DEBUG
mac80211: use IW_AUTH_PRIVACY_INVOKED rather than IW_AUTH_KEY_MGMT
mac80211: remove unused driver ops
mac80211: remove ieee80211_common.h
softmac: MAINTAINERS update
rfkill: Fix sparse warning
rfkill: Use mutex_lock() at register and add sanity check
iwlwifi: select proper rate control algorithm
mac80211: allow driver to ask for a rate control algorithm
mac80211: don't allow registering the same rate control twice
rfkill: Use subsys_initcall
mac80211: make simple rate control algorithm built-in
...
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This patch fixes a small memory leak. Default fib rules can be deleted by
the user if the rule does not carry FIB_RULE_PERMANENT flag, f.e. by
ip rule flush
Such a rule will not be freed as the ref-counter has 2 on start and becomes
clearly unreachable after removal.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* it already statically initialized
* reinitializing live global spinlock every time netns is
setup is also wrong
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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