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None of the existing TCP congestion controls use the rtt value pased
in the ca_ops->cong_avoid interface. Which is lucky because seq_rtt
could have been -1 when handling a duplicate ack.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Kconfig variable
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: chas williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Amol Lad <amol@verismonetworks.com>
Signed-off-by: chas williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: chas williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: chas williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: chas williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: chas williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
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-Fixes ABBA deadlock noted by Patrick McHardy <kaber@trash.net>:
> There is at least one ABBA deadlock, est_timer() does:
> read_lock(&est_lock)
> spin_lock(e->stats_lock) (which is dev->queue_lock)
>
> and qdisc_destroy calls htb_destroy under dev->queue_lock, which
> calls htb_destroy_class, then gen_kill_estimator and this
> write_locks est_lock.
To fix the ABBA deadlock the rate estimators are now kept on an rcu list.
-The est_lock changes the use from protecting the list to protecting
the update to the 'bstat' pointer in order to avoid NULL dereferencing.
-The 'interval' member of the gen_estimator structure removed as it is
not needed.
Signed-off-by: Ranko Zivojnovic <ranko@spidernet.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Change all stats related magic numbers to constants.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The management firmware may still be loading during bnx2_init_one()
because of the D3hot -> D0 transition and the firmware version may
not be available without waiting a bit.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The NVRAM interface is slightly modified on the 5709. To properly
support it, we need to change the buffered flag in the flash data
structure into multiple flags to indicate buffered operation, address
translation, and the use of write enable (WREN). The 5709 flash
only requires the buffered operation bit to be set.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With the slab zeroing allocations cleanups Christoph stubbed in a generic
kzalloc(), which was missed on SLOB. Follow the SLAB/SLUB changes and
kill off the __kzalloc() wrapper that SLOB was using.
Reported-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The old IDE driver is not ready to take generic SCSI commands, even if
it uses them for some specific issues (ie the tray open/close ioctls for
IDE CD-ROM's). Pointed out by Bartlomiej.
I'm sure we'll have it fixed properly soon enough, but for now we should
not allow it to cause problems.
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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I really don't see anybody else wanting to select it ;)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] Fix broken logic, SIGA flags must be bitwise ORed
[S390] cio: Dont print trailing \0 in modalias_show().
[S390] Simplify stack trace.
[S390] z/VM unit record device driver
[S390] vmcp cleanup
[S390] qdio: output queue stall on FCP and network devices
[S390] Fix disassembly of RX_URRD, SI_URD & PC-relative instructions.
[S390] Update default configuration.
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* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: (21 commits)
[WATCHDOG] at32ap700x_wdt.c - Fix compilation warnings
[WATCHDOG] at32ap700x_wdt.c - Add spinlock support
[WATCHDOG] at32ap700x_wdt.c - Add nowayout + MAGICCLOSE features
[WATCHDOG] at32ap700x_wdt.c - timeout module parameter patch
[WATCHDOG] at32ap700x_wdt.c - checkpatch.pl-0.05 clean-up's
[WATCHDOG] change s3c2410_wdt to using dev_() macros for output
[WATCHDOG] s3c2410_wdt announce initialisation
[WATCHDOG] at32ap700x-wdt: add iounmap if probe function fails
[WATCHDOG] at32ap700x-wdt: add missing iounmap in _remove
[WATCHDOG] watchdog-driver-for-at32ap700x-devices-fix-2
[WATCHDOG] watchdog-driver-for-at32ap700x-devices-fix
[WATCHDOG] Watchdog driver for AT32AP700X devices
[WATCHDOG] Mixcom Watchdog - CodingStyle clean-up
[WATCHDOG] Mixcom Watchdog - clean-up printk's
[WATCHDOG] Mixcom Watchdog - clean-up printk's
[WATCHDOG] Mixcom Watchdog - checkcard part 2
[WATCHDOG] Mixcom Watchdog - checkcard
[WATCHDOG] Mixcom Watchdog - get rid of port offset's
[WATCHDOG] Mixcom Watchdog - update "Documentation"
[WATCHDOG] Remove the redundant check for pwrite() in EP93XXX watchdog.
...
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* 'bsg' of git://git.kernel.dk/data/git/linux-2.6-block:
bsg: fix missing space in version print
Don't define empty struct bsg_class_device if !CONFIG_BLK_DEV_BSG
bsg: Kconfig updates
bsg: minor cleanup
bsg: device hash table cleanup
bsg: fix initialization error handling bugs
bsg: mark FUJITA Tomonori as bsg maintainer
bsg: convert to dynamic major
bsg: address various review comments
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
9p: fix debug compilation error
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'isdn-cleanup' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
[ISDN] HiSax hfc_pci: minor cleanups
[ISDN] HiSax bkm_a4t: split setup into two smaller functions
[ISDN] HiSax enternow: split setup into 3 smaller functions
[ISDN] HiSax netjet_u: split setup into 3 smaller functions
[ISDN] HiSax netjet_s: code movement, prep for hotplug
[ISDN] HiSax: move card state alloc/setup code into separate functions
[ISDN] HiSax: move card setup into separate function
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master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Kill bogus set_fs(KERNEL_DS) in do_rt_sigreturn().
[SPARC64]: Update defconfig.
[SPARC64]: Kill explicit %gl register reference.
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'uninit-var' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
arch/i386/* fs/* ipc/*: mark variables with uninitialized_var()
drivers/*: mark variables with uninitialized_var()
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'warnings' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
drivers/atm/ambassador: kill uninit'd var warning, and fix bug
[libata] sata_mv: use pci_try_set_mwi()
drivers/infiniband/hw/mthca/mthca_qp: kill uninit'd var warning
drivers/net/wan/sbni: kill uninit'd var warning
drivers/mtd/ubi/eba: minor cleanup: tighten scope of a local var
drivers/telephony/ixj: cleanup and fix gcc warning
drivers/net/wan/pc300_drv: fix bug caught by gcc warning
drivers/usb/misc/auerswald: fix status check, remove redundant check
[netdrvr] eepro100, ne2k-pci: abort resume if pci_enable_device() fails
[netdrvr] natsemi: Fix device removal bug
kernel/auditfilter: kill bogus uninit'd-var compiler warning
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... or we end up with header include order problems from hell.
E.g. on m68k this is 100% fatal - local_irq_enable() there
wants preempt_count(), which wants task_struct fields, which
we won't have when we are in smp.h pulled from sched.h.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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From: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* trim trailing whitespace
* remove CONFIG_PCI ifdefs, this driver is always PCI (Kconfig enforced)
* remove return statements at the tail of a function
* remove indentation levels by returning an error code immediately.
Makes the code much more readable, and easier to update to PCI hotplug
API.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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No behavior changes, just code movement. Prep for PCI hotplug API.
Well, CONFIG_PCI useless ifdef was removed.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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No behavior changes, just code movement. Prep for PCI hotplug API.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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No behavior changes, just code movement. Prep for PCI hotplug API.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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1) Remove CONFIG_PCI ifdefs. PCI is required in Kconfig.
2) Break up setup_netjet_s() into three separate internal functions.
This helps facilitate upcoming use of PCI hotplug API, and in addition
makes the code much easier to follow.
No code is changed, just moved around. I even kept the out-of-favor
"return(0)" style used in the current source code.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Just code movement. No code changes or cleanups besides that which
is required to call the new functions from the old code site.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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No behavior changes, just code movement.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Fixes the following build error:
CC sound/pci/mixart/mixart_hwdep.o
sound/pci/mixart/mixart_hwdep.c: In function ‘mixart_hwdep_dsp_load’:
sound/pci/mixart/mixart_hwdep.c:610: error: implicit declaration of function ‘vmalloc’
sound/pci/mixart/mixart_hwdep.c:617: error: implicit declaration of function ‘vfree’
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This fixes the following build-error:
CC drivers/parisc/hppb.o
drivers/parisc/hppb.c: In function ‘hppb_probe’:
drivers/parisc/hppb.c:73: error: implicit declaration of function ‘ccio_request_resource’
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mark variables with uninitialized_var() if such a warning appears,
and analysis proves that the var is initialized properly on all paths
it is used.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Mark variables in drivers/* with uninitialized_var() if such a warning
appears, and analysis proves that the var is initialized properly on all
paths it is used.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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An uninitialized variable warning illuminated an area where indeed the
variable was being used without initialization. Unfortunately, after
verifying all such paths were fixed, the warning still appears. So we
follow the initialization practice of other variables in this function.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Because sometimes in life, it's ok to fail.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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drivers/infiniband/hw/mthca/mthca_qp.c: In function
‘mthca_tavor_post_send’:
drivers/infiniband/hw/mthca/mthca_qp.c:1594: warning: ‘f0’ may be used
uninitialized in this function
drivers/infiniband/hw/mthca/mthca_qp.c: In function
‘mthca_arbel_post_send’:
drivers/infiniband/hw/mthca/mthca_qp.c:1949: warning: ‘f0’ may be used
uninitialized in this function
Initializing 'f0' is not strictly necessary in either case, AFAICS.
I was considering use of uninitialized_var(), but looking at the
complex flow of control in each function, I feel it is wiser and
safer to simply zero the var and be certain of ourselves.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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It's actually convenient in the code to initialize this and a sister
variable to zero.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Jeff Garzik <jeff@garzik.org>
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1) Fix gcc uninit'd var warnings by adding 'default' switch stmt labels
in two cases. It was lightning-strikes unlikely that a problem would
ever arise, but not impossible.
2) Tighten the scope of 'blankword' in two cases.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The warning
drivers/net/wan/pc300_drv.c: In function ‘cpc_open’:
drivers/net/wan/pc300_drv.c:2942: warning: ‘br’ may be used
uninitialized in this function
was valid. Ensure 'br' is initialized in all cases.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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1) We should only set 'actual_length' output variable if usb length is
known to be good.
2) No need to check actual_length for NULL. The only caller always
passes non-NULL value.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Jeff Garzik <jeff@garzik.org>
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This episode illustrates how an overused warning can train people to
ignore that warning, which winds up hiding bugs.
The warning
drivers/net/natsemi.c: In function ‘natsemi_remove1’:
drivers/net/natsemi.c:3222: warning: ignoring return value of
‘device_create_file’, declared with attribute warn_unused_result
is oft-ignored, even though at close inspection one notices this occurs
in the /remove/ function, not normally where creation occurs. A quick
s/create/remove/ and we are fixed, with the warning gone.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Kill this warning...
kernel/auditfilter.c: In function ‘audit_receive_filter’:
kernel/auditfilter.c:1213: warning: ‘ndw’ may be used uninitialized in this function
kernel/auditfilter.c:1213: warning: ‘ndp’ may be used uninitialized in this function
...with a simplification of the code. audit_put_nd() can accept NULL
arguments, just like kfree(). It is cleaner to init two existing vars
to NULL, remove the redundant test variable 'putnd_needed' branches, and call
audit_put_nd() directly.
As a desired side effect, the warning goes away.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Older binutils can't handle it. Use SET_GL() instead,
which is explicitly for this purpose.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introduce is_owner_or_cap() macro in fs.h, and convert over relevant
users to it. This is done because we want to avoid bugs in the future
where we check for only effective fsuid of the current task against a
file's owning uid, without simultaneously checking for CAP_FOWNER as
well, thus violating its semantics.
[ XFS uses special macros and structures, and in general looked ...
untouchable, so we leave it alone -- but it has been looked over. ]
The (current->fsuid != inode->i_uid) check in generic_permission() and
exec_permission_lite() is left alone, because those operations are
covered by CAP_DAC_OVERRIDE and CAP_DAC_READ_SEARCH. Similarly operations
falling under the purview of CAP_CHOWN and CAP_LEASE are also left alone.
Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in>
Cc: Al Viro <viro@ftp.linux.org.uk>
Acked-by: Serge E. Hallyn <serge@hallyn.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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