David S. Miller [Fri, 26 Oct 2007 05:49:43 +0000 (22:49 -0700)]
Merge branch 'fixes-davem' of /linux/kernel/git/linville/wireless-2.6
Johannes Berg [Mon, 22 Oct 2007 12:51:37 +0000 (14:51 +0200)]
[PATCH] mac80211: fix printk warning on 64-bit
My AID message patch introduced a warning on 64-bit machines because ~
extends to unsigned long:
| net/mac80211/ieee80211_sta.c: In function ‘ieee80211_rx_mgmt_assoc_resp’:
| net/mac80211/ieee80211_sta.c:1187: warning: format ‘%d’ expects type ‘int’, but argument 7 has type ‘long unsigned int’
This fixes it by explicitly casting the result to u16 (which 'aid' is).
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 23 Oct 2007 15:05:25 +0000 (17:05 +0200)]
[PATCH] add myself as mac80211 maintainer
This adds myself as mac80211 maintainer and updates the git URL to point
to the wireless-2.6 tree. Also move Jiri down so he isn't first in list.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Michael Wu [Fri, 19 Oct 2007 21:14:36 +0000 (17:14 -0400)]
[PATCH] mac80211: Fix SSID matching in AP selection
The length of the SSID desired should also be compared in addition to
the memcmp of the SSIDs.
Thanks to Andrea Merello <andreamrl@tiscali.it> for finding this issue.
Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Vlad Yasevich [Fri, 26 Oct 2007 01:54:46 +0000 (18:54 -0700)]
[UDP]: Make use of inet_iif() when doing socket lookups.
UDP currently uses skb->dev->ifindex which may provide the wrong
information when the socket bound to a specific interface.
This patch makes inet_iif() accessible to UDP and makes UDP use it.
The scenario we are trying to fix is when a client is running on
the same system and the server and both client and server bind to
a non-loopback device.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Acked-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Yasevich [Fri, 26 Oct 2007 01:46:26 +0000 (18:46 -0700)]
[CRYPTO]: Fix hmac_digest from the SG breakage.
Crypto now uses SG helper functions. Fix hmac_digest to use those
functions correctly and fix the oops associated with it.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 26 Oct 2007 01:40:05 +0000 (18:40 -0700)]
[IPV4]: Remove no longer used snmp4_icmp_list.
This was obsoleted by a previous change, but the removal was
forgotten.
Reported by David Howells and David Stevens.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Thu, 25 Oct 2007 22:58:40 +0000 (15:58 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (40 commits)
USB: open disconnect race in usblcd
USB: disconnect open race in legousbtower
USB: open disconnect race in iowarrior
USB: missing error check in emi62
USB: missing error check in emi26
USB: usb_serial_resume bug fix
USB: remove new OHCI build warnings
USB: amd5536udc - remove set_mwi() compiler warning
USB: usbserial - fix potential deadlock between write() and IRQ
usb: serial/pl2303: support for IO Data Device RSAQ5
USB: fix read vs. disconnect race in cytherm driver
USB: fix locking in idmouse
USB: fix interface sysfs file-creation bug
USB: fix ssb_ohci_probe() build bug
USB: pl2303: remove can't happen checks, set speed properly and report baud rate
USB: mos7840: Clean up old checks and stuff
USB rio500.c: fix check-after-use
USB iowarrior.c: fix check-after-use
USB: add URB_FREE_BUFFER to permissible flags
USB: isd200: sort out USB/IDE dependancy mess
...
Linus Torvalds [Thu, 25 Oct 2007 22:58:18 +0000 (15:58 -0700)]
Merge branch 'warnings-upstream' of git://git./linux/kernel/git/jgarzik/misc-2.6
* 'warnings-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
ISDN/sc: fix longstanding warning
Linus Torvalds [Thu, 25 Oct 2007 22:50:48 +0000 (15:50 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/davem/sparc-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: pass correct addr in get_fb_unmapped_area(MAP_FIXED)
Linus Torvalds [Thu, 25 Oct 2007 22:50:32 +0000 (15:50 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/davem/net-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
[IPV4]: Explicitly call fib_get_table() in fib_frontend.c
[NET]: Use BUILD_BUG_ON in net/core/flowi.c
[NET]: Remove in-code externs for some functions from net/core/dev.c
[NET]: Don't declare extern variables in net/core/sysctl_net_core.c
[TCP]: Remove unneeded implicit type cast when calling tcp_minshall_update()
[NET]: Treat the sign of the result of skb_headroom() consistently
[9P]: Fix missing unlock before return in p9_mux_poll_start
[PKT_SCHED]: Fix sch_prio.c build with CONFIG_NETDEVICES_MULTIQUEUE
[IPV4] ip_gre: sendto/recvfrom NBMA address
[SCTP]: Consolidate sctp_ulpq_renege_xxx functions
[NETLINK]: Fix ACK processing after netlink_dump_start
[VLAN]: MAINTAINERS update
[DCCP]: Implement SIOCINQ/FIONREAD
[NET]: Validate device addr prior to interface-up
Linus Torvalds [Thu, 25 Oct 2007 22:48:05 +0000 (15:48 -0700)]
Merge git://git./linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
x86: fix bogus KERN_ALERT on oops
x86: lguest build fix
x86: fix CONFIG_KEXEC build breakage
Linus Torvalds [Thu, 25 Oct 2007 22:44:54 +0000 (15:44 -0700)]
Merge branch 'sg' of git://git.kernel.dk/linux-2.6-block
* 'sg' of git://git.kernel.dk/linux-2.6-block:
fix sg_phys to use dma_addr_t
ub: add sg_init_table for sense and read capacity commands
x86: pci-gart fix
blackfin: fix sg fallout
xtensa: dma-mapping.h is using linux/scatterlist.h functions, so include it
SG: audit of drivers that use blk_rq_map_sg()
arch/um/drivers/ubd_kern.c: fix a building error
SG: Change sg_set_page() to take length and offset argument
AVR32: Fix sg_page breakage
mmc: sg fallout
m68k: sg fallout
More SG build fixes
sg: add missing sg_init_table calls to zfcp
SG build fix
Linus Torvalds [Thu, 25 Oct 2007 22:38:19 +0000 (15:38 -0700)]
Merge git://git./linux/kernel/git/rusty/linux-2.6-lguest
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest:
lguest: documentation update
lguest: Add to maintainers file.
lguest: build fix
lguest: clean up lguest_launcher.h
lguest: remove unused "wake" element from struct lguest
lguest: use defines from x86 headers instead of magic numbers
lguest: example launcher header cleanup.
Linus Torvalds [Thu, 25 Oct 2007 22:20:22 +0000 (15:20 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] sata_nv: SWNCQ should not apply to MCP61
libata-core: Be a bit more relaxed about early DMA zero devices
ahci: ahci: implement workaround for ASUS P5W-DH Deluxe ahci_broken_hardreset(), take #2
Fix pata_icside build for recent libata API changes
libata: cosmetic clean up in ata_eh_reset()
libata-core.c: make 2 functions static
[libata] Create internal helper ata_dev_set_feature()
Linus Torvalds [Thu, 25 Oct 2007 22:19:59 +0000 (15:19 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
[netdrvr] forcedeth: add MCP77 device IDs
rndis_host: reduce MTU instead of refusing to talk to devices with low max packet size
cpmac: update to new fixed phy driver interface
cpmac: convert to napi_struct interface
cpmac: use print_mac() instead of MAC_FMT
natsemi: fix oops, link back netdevice from private-struct
ehea: fix port_napi_disable/enable
bonding/bond_main.c: fix cut'n'paste error
make bonding/bond_main.c:bond_deinit() static
drivers/net/ipg.c: cleanups
remove Documentation/networking/net-modules.txt
Linus Torvalds [Thu, 25 Oct 2007 22:19:03 +0000 (15:19 -0700)]
Merge git://git./linux/kernel/git/mingo/linux-2.6-sched
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
sched: mark CONFIG_FAIR_GROUP_SCHED as !EXPERIMENTAL
sched: isolate SMP balancing code a bit more
sched: reduce balance-tasks overhead
sched: make cpu_shares_{show,store}() static
sched: clean up some control group code
sched: constify sched.h
sched: document profile=sleep requiring CONFIG_SCHEDSTATS
sched: use show_regs() to improve __schedule_bug() output
sched: clean up sched_domain_debug()
sched: fix fastcall mismatch in completion APIs
sched: fix sched_domain sysctl registration again
Ram Gupta [Thu, 25 Oct 2007 15:03:28 +0000 (10:03 -0500)]
fs: Fix to correct the mbcache entries counter
This patch fixes the c_entry_count counter of the mbcache. Currently
it increments the counter first & allocate the cache entry later. In
case of failure to allocate the entry due to insufficient memory this
counter is still left incremented. This patch fixes this anomaly.
Signed-off-by: Ram Gupta <ram.gupta5@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 25 Oct 2007 14:27:40 +0000 (15:27 +0100)]
Fix pointer mismatches in proc_sysctl.c
Fix pointer mismatches in proc_sysctl.c. The proc_handler() method returns a
size_t through an arg pointer, but is given a pointer to a ssize_t to return
into.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Garzik [Thu, 25 Oct 2007 08:06:13 +0000 (04:06 -0400)]
Permit silencing of __deprecated warnings.
The __deprecated marker is quite useful in highlighting the remnants of
old APIs that want removing.
However, it is quite normal for one or more years to pass, before the
(usually ancient, bitrotten) code in question is either updated or
deleted.
Thus, like __must_check, add a Kconfig option that permits the silencing
of this compiler warning.
This change mimics the ifdef-ery and Kconfig defaults of MUST_CHECK as
closely as possible.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 18 Oct 2007 03:18:32 +0000 (23:18 -0400)]
Fix /proc/acpi/alarm BCD alarm encodings
This fixes some totally illogical and wrong code that converts things to
and from BCD mode essentially randomly, does math on values in BCD mode
etc etc. Introduce a few helper functions to make it a bit more obvious
what is going on, and make sure that we always do all the arithmetic
(and anythign else, for that matter) in binary, not BCD.
Tested by Mark Lord, who found the problem originally, and also pushed
the patch back and reminded me about it.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oliver Neukum [Thu, 25 Oct 2007 14:05:53 +0000 (16:05 +0200)]
USB: open disconnect race in usblcd
this driver has a possible use after free due to a race when disconnect
and open handle intfdata without a lock.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Thu, 25 Oct 2007 13:48:39 +0000 (15:48 +0200)]
USB: disconnect open race in legousbtower
again, possible use after free due to touching intfdata without lock.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Thu, 25 Oct 2007 13:46:30 +0000 (15:46 +0200)]
USB: open disconnect race in iowarrior
the driver sets intfdata to NULL without lock. Data structures can be
freed and accessed.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Thu, 25 Oct 2007 13:42:38 +0000 (15:42 +0200)]
USB: missing error check in emi62
the emi62 also lacks an error check.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Thu, 25 Oct 2007 13:38:44 +0000 (15:38 +0200)]
USB: missing error check in emi26
this drivers lacks an error check.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Thu, 25 Oct 2007 17:58:43 +0000 (10:58 -0700)]
USB: usb_serial_resume bug fix
Avoid potential null pointer dereference.
Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Thu, 25 Oct 2007 00:23:42 +0000 (17:23 -0700)]
USB: remove new OHCI build warnings
Remove various newly-introduced compiler warnings for OHCI.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Thu, 25 Oct 2007 01:44:08 +0000 (18:44 -0700)]
USB: amd5536udc - remove set_mwi() compiler warning
Get rid of pointless pci_set_mwi() compiler warning.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Kosina [Fri, 19 Oct 2007 22:05:19 +0000 (00:05 +0200)]
USB: usbserial - fix potential deadlock between write() and IRQ
USB: usbserial - fix potential deadlock between write() and IRQ
usb_serial_generic_write() doesn't disable interrupts when taking port->lock,
and could therefore deadlock with usb_serial_generic_read_bulk_callback()
being called from interrupt, taking the same lock. Fix it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Larry Finger <larry.finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Masakazu Mokuno [Tue, 23 Oct 2007 04:51:57 +0000 (13:51 +0900)]
usb: serial/pl2303: support for IO Data Device RSAQ5
This patch adds support for the IO Data Device USB-RSAQ5, PL2303 based
USB-serial converter, to pl2303 driver
Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Tue, 23 Oct 2007 10:26:41 +0000 (12:26 +0200)]
USB: fix read vs. disconnect race in cytherm driver
the disconnect method of this driver set intfdata to NULL before
removing attribute files. The attributes' read methods will happily
follow the NULL pointer. Here's the correct ordering.
Signed-off-by : Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Tue, 23 Oct 2007 12:23:13 +0000 (14:23 +0200)]
USB: fix locking in idmouse
Pete caused me to lock at buggy drivers in this respect. The idmouse has
a race between open and disconnect. This patch
- solves the open/disconnect race
- switches locking to mutexes
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Fri, 19 Oct 2007 13:51:58 +0000 (09:51 -0400)]
USB: fix interface sysfs file-creation bug
This patch (as1005) fixes a rather subtle problem. When
usb_set_configuration() registers the interfaces and their files in
sysfs, it doesn't expect those files to exist already. But when an
interface is registered, its driver may call usb_set_interface() and
thereby cause the sysfs files to be created. The result is an error
when usb_set_configuration() goes on to create those same files again.
The (not-so-great) solution is to have usb_set_configuration() remove
any existing files before creating them.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ingo Molnar [Mon, 15 Oct 2007 17:43:21 +0000 (19:43 +0200)]
USB: fix ssb_ohci_probe() build bug
fix ssb_ohci_probe() build bug:
drivers/built-in.o: In function `ssb_ohci_probe':
ohci-hcd.c:(.text+0xbff39): undefined reference to `ssb_device_enable'
ohci-hcd.c:(.text+0xbff6f): undefined reference to `ssb_admatch_base'
ohci-hcd.c:(.text+0xbff8b): undefined reference to `ssb_admatch_size'
ohci-hcd.c:(.text+0xbffe5): undefined reference to `ssb_device_disable'
[...]
the reason was that this Kconfig combination was allowed:
CONFIG_SSB=m
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_SSB=y
the fix is to require a modular USB_OHCI_HCD build when SSB is modular.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Mon, 15 Oct 2007 19:54:47 +0000 (20:54 +0100)]
USB: pl2303: remove can't happen checks, set speed properly and report baud rate
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Mon, 15 Oct 2007 19:53:35 +0000 (20:53 +0100)]
USB: mos7840: Clean up old checks and stuff
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adrian Bunk [Thu, 18 Oct 2007 10:53:07 +0000 (12:53 +0200)]
USB rio500.c: fix check-after-use
The Coverity checker spotted that we have already oops'ed if "dev"
was NULL in these places.
Since "dev" being NULL isn't possible at these places this patch removes
the NULL checks.
Additionally, I've fixed the formatting of the if's.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adrian Bunk [Thu, 18 Oct 2007 10:52:50 +0000 (12:52 +0200)]
USB iowarrior.c: fix check-after-use
The Coverity checker spotted that we have already oops'ed if "dev"
was NULL.
Since "dev" being NULL doesn't seem to be possible here this patch
removes the NULL check.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Wed, 17 Oct 2007 12:37:54 +0000 (14:37 +0200)]
USB: add URB_FREE_BUFFER to permissible flags
URB_FREE_BUFFER needs to be allowed in the sanity checks to use drivers that
use that flag.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Mon, 15 Oct 2007 14:08:11 +0000 (15:08 +0100)]
USB: isd200: sort out USB/IDE dependancy mess
The ISD200 driver imports a single trivial routine from the IDE layer and
in doing so creates a mess of dependancies that drag in the entire old
IDE layer. Even more sad - it does this for a routine which is usually
(little endian) a null function!
- Copy the function into ISD200
- Rename it so it doesn't clash with the ide header prototype
- Remove all the depend constraints
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Matthias Kaehlcke [Tue, 16 Oct 2007 17:23:10 +0000 (19:23 +0200)]
USB: FTDI Elan driver: Convert ftdi->u132_lock to mutex
FTDI Elan driver: Convert the semaphore ftdi->u132_lock to the mutex
API
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 16 Oct 2007 15:55:30 +0000 (11:55 -0400)]
USB: fix scheduling of Iso URBs in uhci-hcd
This patch (as1003) changes uhci-hcd to treat the URB_ISO_ASAP flag
the same as other host controller drivers, namely, to schedule an Iso
URB for the first available time slot that hasn't already expired.
URBs in which the flag isn't set will be scheduled for the first slot
following the last URB, even if it has expired.
This fixes a problem reported by Martin Bachem.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:25 +0000 (01:24 -0700)]
USB: io_edgeport: cleanups, and tty speed reporting
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andrew Morton [Thu, 18 Oct 2007 08:24:25 +0000 (01:24 -0700)]
USB: ftd_sio cleanups and updates for new termios work checkpatch fixes
WARNING: line over 80 characters
#23: FILE: drivers/usb/serial/ftdi_sio.c:297:
+ speed_t force_baud; /* if non-zero, force the baud rate to this value */
ERROR: use tabs not spaces
#31: FILE: drivers/usb/serial/ftdi_sio.c:881:
+^I$
ERROR: use tabs not spaces
#39: FILE: drivers/usb/serial/ftdi_sio.c:890:
+^I$
WARNING: line over 80 characters
#111: FILE: drivers/usb/serial/ftdi_sio.c:1956:
+ tty_encode_baud_rate(port->tty, priv->force_baud, priv->force_baud);
Your patch has style problems, please review. If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:24 +0000 (01:24 -0700)]
USB: ftd_sio: cleanups and updates for new termios work
- Remove can't happen tests
- Rework speed validation in terms of baud rates not CBAUD bits
- Report speed set (or chosen)
- Minor termios correctness
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:24 +0000 (01:24 -0700)]
USB: cp2101: convert to new termios
- Convert to new baud rate functions
- Add baud rate reporting
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:23 +0000 (01:24 -0700)]
USB: whiteheat: clean up can't happen checks and encode baud rate
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:22 +0000 (01:24 -0700)]
usb-serial: handle NULL termios methods as "no hardware changing support"
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:22 +0000 (01:24 -0700)]
USB: sierra: termios
No hardware termios setting in this case so keep the old settings
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:21 +0000 (01:24 -0700)]
USB: option: termios handling
For the devices that have no hardware settings set up the termios return
properly.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:21 +0000 (01:24 -0700)]
USB: kobil_sct: termios encoding fixups
- Clear unsupported CMSPAR
- Encode resulting speeds
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:20 +0000 (01:24 -0700)]
USB: keyspan termios tidy
- Clear unsupported CMSPAR bit
- Clean up long chains of a->b-> a bit
- Encode baud rate back into tty structure properly
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:20 +0000 (01:24 -0700)]
USB: ir_usb: termios handling
- Clean up paranoia checks
- Propogate back a correct fixed termios
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:19 +0000 (01:24 -0700)]
USB: empeg: clean up and handle speeds
The empeg is pretty fixed. Tidy up the long foo->bar->baz stuff and
encode the fixed speed properly.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:19 +0000 (01:24 -0700)]
USB: digi_acceleport: fix termios and also readability a bit
- Expand some x&y to x & y so I could read it when checking
- Clear CMSPAR bit in the termios (as the driver does not support it)
- Encode the speed using the new tty_encode_baud_rate facility
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:18 +0000 (01:24 -0700)]
USB: ch341: fix termios handling
The ch341 currently doesn't support most of the hardware setting. So to keep
the termios data right we propogate the old termios hardware values back then
encode the speed.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:18 +0000 (01:24 -0700)]
usb serial: kill another case we pass NULL and shouldn't
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:17 +0000 (01:24 -0700)]
USB: ark3116: update termios handling
- Set the i/ospeed in the initial termios properly
- Use the tty_encode_baud_rate functions to report resulting rates properly
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Thu, 18 Oct 2007 08:24:16 +0000 (01:24 -0700)]
serial: stop passing NULL to functions that expect data
Earlier patches have removed the checking for old v new differences from the
USB drivers so we can now pass in a valid blank old termios so that we don't
to fill the drivers with magic hacks for console support
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 9 Apr 2002 19:14:34 +0000 (12:14 -0700)]
USB: add new Novatel device ids to option driver
This adds support for the U727 and MC950 devices.
Cc: Rony Sarkis <rsarkis@nvtl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Hugh Dickins [Thu, 25 Oct 2007 07:55:05 +0000 (09:55 +0200)]
fix sg_phys to use dma_addr_t
x86_32 CONFIG_HIGHMEM64G with 5GB RAM hung when booting, after issuing
some "request_module: runaway loop modprobe binfmt-0000" messages in
trying to exec /sbin/init.
The binprm buf doesn't see the right ".ELF" header because sg_phys()
is providing the wrong physical addresses for high pages: a 32-bit
unsigned long is too small in this case, we need to use dma_addr_t.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Ayaz Abdulla [Thu, 25 Oct 2007 07:36:42 +0000 (03:36 -0400)]
[netdrvr] forcedeth: add MCP77 device IDs
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Thomas Sailer [Tue, 23 Oct 2007 22:47:19 +0000 (00:47 +0200)]
rndis_host: reduce MTU instead of refusing to talk to devices with low max packet size
This patch makes the host RNDIS driver talk to RNDIS devices with an MTU
less than 1.5k, instead of refusing to talk to such a device.
Signed-Off-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
--
Hi Jeff,
are you the right person to send this to?
Nobody else seems to be wanting to forward this to Linus...
Thanks,
Tom
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Eugene Konev [Wed, 24 Oct 2007 02:42:03 +0000 (10:42 +0800)]
cpmac: update to new fixed phy driver interface
Use fixed_mdio_get_phydev for obtaining fixed phy instances and adopt to
changed fixed phy device naming.
Signed-off-by: Eugene Konev <ejka@imfi.kspu.ru>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Eugene Konev [Wed, 24 Oct 2007 02:42:02 +0000 (10:42 +0800)]
cpmac: convert to napi_struct interface
Convert cpmac to new napi_struct API introduced by
bea3348eef27e6044b6161fd04c3152215f96411 [NET]: Make NAPI polling independent
of struct net_device objects.
Only disable rx interrupts if napi actually has been scheduled.
Signed-off-by: Eugene Konev <ejka@imfi.kspu.ru>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Eugene Konev [Wed, 24 Oct 2007 02:42:01 +0000 (10:42 +0800)]
cpmac: use print_mac() instead of MAC_FMT
Switch to using DECLARE_MAC_BUF/print_mac() added by commit
0795af5729b18218767fab27c44b1384f72dc9ad [NET]: Introduce and use print_mac()
and DECLARE_MAC_BUF().
Signed-off-by: Eugene Konev <ejka@imfi.kspu.ru>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Ingo Molnar [Wed, 24 Oct 2007 11:58:57 +0000 (13:58 +0200)]
natsemi: fix oops, link back netdevice from private-struct
* Andrew Nelless <andrew@nelless.net> wrote:
> Hi,
>
> I booted up 2.6.24-rc1 this morning [Real early over a brew ;-)] and
> was having a problems with multiple ~5 second hangs on SATA/drive init
> (Something to do with "EH" something-or-other and resets but I'll
> email in separately about it later unless its fixed by the time I get
> the chance).
>
> Anyway, I went to fire up netconsole to get a decent log dump and hit
> across the following nasty. Netconsole works fine in 2.6.23.1 with a
> similar config and the same kernel parameters.
>
> A shot of the screen is the only method I could come up with to
> capture the log, I hope that is OK, it is pretty readable.
>
>
> The nasty:
> http://andotnet.nfshost.com/linux/2.6.24-rc1-netconsole-nullderef.jpg
the NULL dereference is here:
(gdb) list *0xffffffff804a9504
0xffffffff804a9504 is in natsemi_poll (drivers/net/natsemi.c:717).
712 return count;
713 }
714
715 static inline void __iomem *ns_ioaddr(struct net_device *dev)
716 {
717 return (void __iomem *) dev->base_addr;
718 }
719
which is this code from natsemi.c:
2227 struct net_device *dev = np->dev;
2228 void __iomem * ioaddr = ns_ioaddr(dev);
2229 int work_done = 0;
seems like the NAPI changes in -rc1 added an np->dev field but forgot to
initialize it ...
does the patch below fix the oops for you?
Ingo
-------------------->
Subject: natsemi: fix oops, link back netdevice from private-struct
From: Ingo Molnar <mingo@elte.hu>
this commit:
commit
bea3348eef27e6044b6161fd04c3152215f96411
Author: Stephen Hemminger <shemminger@linux-foundation.org>
Date: Wed Oct 3 16:41:36 2007 -0700
[NET]: Make NAPI polling independent of struct net_device objects.
added np->dev to drivers/net/natsemi.c's struct netdev_private, but
forgot to initialize that new field upon driver init. The result was
a predictable NULL dereference oops the first time the hardware
generated an interrupt.
Reported-by: Andrew Nelless <andrew@nelless.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jan-Bernd Themann [Wed, 24 Oct 2007 09:53:34 +0000 (11:53 +0200)]
ehea: fix port_napi_disable/enable
napi_disable / napi_enable must be applied on all ehea queues.
Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Adrian Bunk [Wed, 24 Oct 2007 16:27:43 +0000 (18:27 +0200)]
bonding/bond_main.c: fix cut'n'paste error
This patch fixes a cut'n'paste error in
commit
1b76b31693d4a6088dec104ff6a6ead54081a3c2.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Adrian Bunk [Wed, 24 Oct 2007 16:23:17 +0000 (18:23 +0200)]
make bonding/bond_main.c:bond_deinit() static
bond_deinit() can now become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Adrian Bunk [Wed, 24 Oct 2007 16:23:19 +0000 (18:23 +0200)]
drivers/net/ipg.c: cleanups
This patch contains the following cleanups:
- make ipg_nic_get_stats() static
- move DefaultPhyParam[] from ipg.h to ipg.c and make it static
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Adrian Bunk [Wed, 24 Oct 2007 16:25:03 +0000 (18:25 +0200)]
remove Documentation/networking/net-modules.txt
According to git, the only one who touched this file during the last
5 years was me when removing drivers...
modinfo offers less ancient information.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Paul Gortmaker <paul.gortmaker@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
FUJITA Tomonori [Thu, 25 Oct 2007 07:17:03 +0000 (09:17 +0200)]
ub: add sg_init_table for sense and read capacity commands
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
FUJITA Tomonori [Thu, 25 Oct 2007 07:13:32 +0000 (09:13 +0200)]
x86: pci-gart fix
map_sg could copy the last sg element to another position (if merging
some elements). It breaks sg chaining. This copies only
dma_address/length instead of the whole sg element.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Kuan Luo [Thu, 25 Oct 2007 06:14:17 +0000 (02:14 -0400)]
[libata] sata_nv: SWNCQ should not apply to MCP61
The mcp61 has bug with ncq.
Signed-off-by: Kuan Luo <kluo@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alan Cox [Mon, 15 Oct 2007 18:18:27 +0000 (19:18 +0100)]
libata-core: Be a bit more relaxed about early DMA zero devices
I guess Windows didn't care about the command so neither did they
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Thu, 25 Oct 2007 05:59:16 +0000 (14:59 +0900)]
ahci: ahci: implement workaround for ASUS P5W-DH Deluxe ahci_broken_hardreset(), take #2
P5W-DH Deluxe has ICH9 which doesn't have PMP support but SIMG 4726
hardwired to the second port of AHCI controller at PCI device 1f.2.
The 4726 doesn't work as PMP but as a storage processor which can do
hardware RAID on downstream ports.
When no device is attached to the downstream port of the 4726, pseudo
ATA device for configuration appears. Unfortunately, ATA emulation on
the device is very lousy and causes long hang during boot.
This patch implements workaround for the board. If the mainboard is
P5W-DH Deluxe (matched using DMI), only hardreset is used on the
second port of AHCI controller @ 1f.2 and the hardreset doesn't depend
on receiving the first FIS and just proceed to IDENTIFY.
This workaround fixes bugzilla #8923.
http://bugzilla.kernel.org/show_bug.cgi?id=8923
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Al Viro [Sun, 14 Oct 2007 00:12:39 +0000 (01:12 +0100)]
Fix pata_icside build for recent libata API changes
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Wed, 24 Oct 2007 06:21:26 +0000 (15:21 +0900)]
libata: cosmetic clean up in ata_eh_reset()
Local variable @action usage in ata_eh_reset() is a bit confusing.
It's used only to cache ehc->i.action to test reset masks after
clearing it; however, due to the generic name "action", it's easy to
misinterpret the local variable as containing the selected reset
method later. Also, the reason for caching the original value is easy
to miss.
This patch renames @action to @tmp_action and make it buffer newly
selected value instead to improve readability.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Adrian Bunk [Wed, 24 Oct 2007 16:23:06 +0000 (18:23 +0200)]
libata-core.c: make 2 functions static
strn_pattern_cmp() and ata_port_detach() can become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Rusty Russell [Thu, 25 Oct 2007 05:02:50 +0000 (15:02 +1000)]
lguest: documentation update
Went through the documentation doing typo and content fixes. This
patch contains only comment and whitespace changes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Jeff Garzik [Thu, 25 Oct 2007 04:33:27 +0000 (00:33 -0400)]
[libata] Create internal helper ata_dev_set_feature()
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Rusty Russell [Thu, 25 Oct 2007 04:12:24 +0000 (14:12 +1000)]
lguest: Add to maintainers file.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Jeff Garzik [Thu, 25 Oct 2007 04:15:09 +0000 (14:15 +1000)]
lguest: build fix
Fix this error (i386 !SMP build)
arch/x86/lguest/boot.c: In function ‘lguest_init’:
arch/x86/lguest/boot.c:1059: error: ‘pm_power_off’ undeclared (first use in this function)
by including linux/pm.h.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell [Thu, 25 Oct 2007 04:12:20 +0000 (14:12 +1000)]
lguest: clean up lguest_launcher.h
Remove now-unused defines.
Fix old idempotent #ifndef _ASM_LGUEST_USER name.
Fix comment on use of lguest_req.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell [Thu, 25 Oct 2007 04:10:30 +0000 (14:10 +1000)]
lguest: remove unused "wake" element from struct lguest
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell [Thu, 25 Oct 2007 04:09:53 +0000 (14:09 +1000)]
lguest: use defines from x86 headers instead of magic numbers
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell [Thu, 25 Oct 2007 04:09:25 +0000 (14:09 +1000)]
lguest: example launcher header cleanup.
Now the kernel headers are clean for userspace export, we don't need
to typedef kernel types before including them. We also don't need
pci_ids.h (that was from an earlier virtio draft).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Ingo Molnar [Wed, 24 Oct 2007 16:23:51 +0000 (18:23 +0200)]
sched: mark CONFIG_FAIR_GROUP_SCHED as !EXPERIMENTAL
mark CONFIG_FAIR_GROUP_SCHED as !EXPERIMENTAL. All bugs have been
fixed and it's perfect ;-)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Williams [Wed, 24 Oct 2007 16:23:51 +0000 (18:23 +0200)]
sched: isolate SMP balancing code a bit more
At the moment, a lot of load balancing code that is irrelevant to non
SMP systems gets included during non SMP builds.
This patch addresses this issue and reduces the binary size on non
SMP systems:
text data bss dec hex filename
10983 28 1192 12203 2fab sched.o.before
10739 28 1192 11959 2eb7 sched.o.after
Signed-off-by: Peter Williams <pwil3058@bigpond.net.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Williams [Wed, 24 Oct 2007 16:23:51 +0000 (18:23 +0200)]
sched: reduce balance-tasks overhead
At the moment, balance_tasks() provides low level functionality for both
move_tasks() and move_one_task() (indirectly) via the load_balance()
function (in the sched_class interface) which also provides dual
functionality. This dual functionality complicates the interfaces and
internal mechanisms and makes the run time overhead of operations that
are called with two run queue locks held.
This patch addresses this issue and reduces the overhead of these
operations.
Signed-off-by: Peter Williams <pwil3058@bigpond.net.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Adrian Bunk [Wed, 24 Oct 2007 16:23:50 +0000 (18:23 +0200)]
sched: make cpu_shares_{show,store}() static
cpu_shares_{show,store}() can become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Paul Menage [Wed, 24 Oct 2007 16:23:50 +0000 (18:23 +0200)]
sched: clean up some control group code
- replace "cont" with "cgrp" in a few places in the CFS cgroup code,
- use write_uint rather than write for cpu.shares write function
Signed-off-by: Paul Menage <menage@google.com>
Acked-by : Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Joe Perches [Wed, 24 Oct 2007 16:23:50 +0000 (18:23 +0200)]
sched: constify sched.h
Add const to some struct task_struct * uses
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Mel Gorman [Wed, 24 Oct 2007 16:23:50 +0000 (18:23 +0200)]
sched: document profile=sleep requiring CONFIG_SCHEDSTATS
profile=sleep only works if CONFIG_SCHEDSTATS is set. This patch notes
the limitation in Documentation/kernel-parameters.txt and prints a
warning at boot-time if profile=sleep is used without CONFIG_SCHEDSTAT.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Satyam Sharma [Wed, 24 Oct 2007 16:23:50 +0000 (18:23 +0200)]
sched: use show_regs() to improve __schedule_bug() output
A full register dump along with stack backtrace would make the
"scheduling while atomic" message more helpful. Use show_regs() instead
of dump_stack() for this. We already know we're atomic in here (that is
why this function was called) so show_regs()'s atomicity expectations
are guaranteed.
Also, modify the output of the "BUG: scheduling while atomic:" header a
bit to keep task->comm and task->pid together and preempt_count() after
them.
Signed-off-by: Satyam Sharma <satyam@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Wed, 24 Oct 2007 16:23:48 +0000 (18:23 +0200)]
sched: clean up sched_domain_debug()
clean up sched_domain_debug().
this also shrinks the code a bit:
text data bss dec hex filename
50474 4306 480 55260 d7dc sched.o.before
50404 4306 480 55190 d796 sched.o.after
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Wed, 24 Oct 2007 16:23:48 +0000 (18:23 +0200)]
sched: fix fastcall mismatch in completion APIs
Jeff Dike noticed that wait_for_completion_interruptible()'s prototype
had a mismatched fastcall.
Fix this by removing the fastcall attributes from all the completion APIs.
Found-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Milton Miller [Wed, 24 Oct 2007 16:23:48 +0000 (18:23 +0200)]
sched: fix sched_domain sysctl registration again
commit
029190c515f15f512ac85de8fc686d4dbd0ae731 (cpuset
sched_load_balance flag) was not tested SCHED_DEBUG enabled as
committed as it dereferences NULL when used and it reordered
the sysctl registration to cause it to never show any domains
or their tunables.
Fixes:
1) restore arch_init_sched_domains ordering
we can't walk the domains before we build them
presently we register cpus with empty directories (no domain
directories or files).
2) make unregister_sched_domain_sysctl do nothing when already unregistered
detach_destroy_domains is now called one set of cpus at a time
unregister_syctl dereferences NULL if called with a null.
While the the function would always dereference null if called
twice, in the previous code it was always called once and then
was followed a register. So only the hidden bug of the
sysctl_root_table not being allocated followed by an attempt to
free it would have shown the error.
3) always call unregister and register in partition_sched_domains
The code is "smart" about unregistering only needed domains.
Since we aren't guaranteed any calls to unregister, always
unregister. Without calling register on the way out we
will not have a table or any sysctl tree.
4) warn if register is called without unregistering
The previous table memory is lost, leaving pointers to the
later freed memory in sysctl and leaking the memory of the
tables.
Before this patch on a 2-core 4-thread box compiled for SMT and NUMA,
the domains appear empty (there are actually 3 levels per cpu). And as
soon as two domains a null pointer is dereferenced (unreliable in this
case is stack garbage):
bu19a:~# ls -R /proc/sys/kernel/sched_domain/
/proc/sys/kernel/sched_domain/:
cpu0 cpu1 cpu2 cpu3
/proc/sys/kernel/sched_domain/cpu0:
/proc/sys/kernel/sched_domain/cpu1:
/proc/sys/kernel/sched_domain/cpu2:
/proc/sys/kernel/sched_domain/cpu3:
bu19a:~# mkdir /dev/cpuset
bu19a:~# mount -tcpuset cpuset /dev/cpuset/
bu19a:~# cd /dev/cpuset/
bu19a:/dev/cpuset# echo 0 > sched_load_balance
bu19a:/dev/cpuset# mkdir one
bu19a:/dev/cpuset# echo 1 > one/cpus
bu19a:/dev/cpuset# echo 0 > one/sched_load_balance
Unable to handle kernel paging request for data at address 0x00000018
Faulting instruction address: 0xc00000000006b608
NIP:
c00000000006b608 LR:
c00000000006b604 CTR:
0000000000000000
REGS:
c000000018d973f0 TRAP: 0300 Not tainted (2.6.23-bml)
MSR:
9000000000009032 <EE,ME,IR,DR> CR:
28242442 XER:
00000000
DAR:
0000000000000018, DSISR:
0000000040000000
TASK =
c00000001912e340[1987] 'bash' THREAD:
c000000018d94000 CPU: 2
..
NIP [
c00000000006b608] .unregister_sysctl_table+0x38/0x110
LR [
c00000000006b604] .unregister_sysctl_table+0x34/0x110
Call Trace:
[
c000000018d97670] [
c000000007017270] 0xc000000007017270 (unreliable)
[
c000000018d97720] [
c000000000058710] .detach_destroy_domains+0x30/0xb0
[
c000000018d977b0] [
c00000000005cf1c] .partition_sched_domains+0x1bc/0x230
[
c000000018d97870] [
c00000000009fdc4] .rebuild_sched_domains+0xb4/0x4c0
[
c000000018d97970] [
c0000000000a02e8] .update_flag+0x118/0x170
[
c000000018d97a80] [
c0000000000a1768] .cpuset_common_file_write+0x568/0x820
[
c000000018d97c00] [
c00000000009d95c] .cgroup_file_write+0x7c/0x180
[
c000000018d97cf0] [
c0000000000e76b8] .vfs_write+0xe8/0x1b0
[
c000000018d97d90] [
c0000000000e810c] .sys_write+0x4c/0x90
[
c000000018d97e30] [
c00000000000852c] syscall_exit+0x0/0x40
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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