08 Dec, 2006
40 commits
-
Do proper error-checking and propagation in drivers/base/memory.c, hence fix
__must_check warnings.Cc: KAMEZAWA Hiroyuki
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A driver for the PCEngines WRAP boards (http://www.pcengines.ch), which are
very similar to the Soekris net4801 (same NS SC1100 geode reference
design).The LEDs on the WRAP are on different GPIO lines and I have modified and
copied the net48xx error led support for this. It also includes support
for an "extra" led (in addition to error). The three LEDs on the WRAP are
at GPIO lines 2,3,18 (WRAP LEDs from left to right). This driver gives
access to the second and third LEDs by twiddling GPIO lines 3 & 18.Because these boards are so similar to the net48xx, I basically sed-ed that
driver to form the basis for leds-wrap.c. The only changes from
leds-net48xx.c are:- #define WRAP_EXTRA_LED_GPIO
- name changes
- duplicate relevant sections to provide support for the "extra" led
- reverse the various *_led_set values. The WRAP is "backwards" from the
net48xx, and these needed to be updated for that.[akpm@osdl.org: build fix]
Signed-off-by: Kristian Kielhofner
Acked-by: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In file included from drivers/char/ip2/ip2main.c:285:
drivers/char/ip2/i2lib.c: In function `i2Output':
drivers/char/ip2/i2lib.c:1019: warning: unused variable `rc'Signed-off-by: Mariusz Kozlowski
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Clean up several code points in which the return code from misc_register is
not handled properly.Several modules failed to deregister various hooks when misc_register fails,
and this patch cleans them up. Also there are a few modules that legitimately
don't care about the failure status of misc register. These drivers however
unilaterally call misc_deregister on module unload.Since misc_register doesn't initialize the list_head in the init_routine if it
fails, the deregister operation is at risk for oopsing when list_del is
called. The initial solution was to manually init the list in the miscdev
structure in each of those modules, but the consensus in this thread was to
consolodate and do that universally inside misc_register.Signed-off-by: Neil Horman
Cc: Bjorn Helgaas
Cc: Kylene Jo Hall
Cc: Dmitry Torokhov
Cc: Olaf Hering
Cc: Benjamin Herrenschmidt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fixing sbpcd.c baroque error printing in process.
Signed-off-by: Alexey Dobriyan
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is on our "Envoy" boxes which we have, according to the documentation, an
"Exar ST16C554/554D Quad UART with 16-byte Fifo's". The box also has two
other "on-board" serial ports and a modem chip.The two on-board serial UARTs were being detected along with the first two
Exar UARTs. The last two Exar UARTs were not showing up and neither was the
modem.This patch was the only way I could the kernel to see beyond the standard four
serial ports and get all four of the Exar UARTs to show up.[akpm@osdl.org: build fix]
Signed-off-by: Paul B Schroeder
Cc: Lennart Sorensen
Acked-by: Alan Cox
Cc: Russell King
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
=============================================
[ INFO: possible recursive locking detected ]
2.6.18-1.2699.fc6 #1
---------------------------------------------
swapper/0 is trying to acquire lock:
(&list->lock#3){+...}, at: [] skb_dequeue+0x12/0x43but task is already holding lock:
(&list->lock#3){+...}, at: [] bcsp_dequeue+0x6a/0x11e [hci_uart]Two different list locks nest, annotate so.
Signed-off-by: Peter Zijlstra
Acked-by: Marcel Holtmann
Acked-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch makes module init return proper value instead of -1 (-EPERM).
Cc: Tim Waugh
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support for the parallel port (implemented as separate PCI function) on
the Oxford Semiconductor OX16PCI952.Signed-off-by: Ryan Underwood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix sparse NULL warning;
drivers/misc/tifm_core.c:223:17: warning: Using plain integer as NULL pointerFix style while there.
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
paride_register() returns 1 on success, 0 on failure and module init
code looks likestatic int __init foo_init(void)
{
return paride_register(&foo) - 1;
}which is not what one get used to. Converted to usual 0/-E convention.
In case of kbic driver, unwind registration. It was just
return (paride_register(&k951)||paride_register(&k971))-1;
Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We're about to change the semantics of pi_register()'s return value, so
rename it to something else first, so that any unconverted code reliaby
breaks.Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In order for spi_busnum_to_master to work spi master devices must be linked
into the spi_master_class.subsys.kset list. At the moment the default
class_obj_subsys.kset is used and we can't enumerate the master devices.Signed-off-by: Hans-Christian Egtvedt
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Correct the following in driver/spi/spi.c in function spi_busnum_to_master:
* must allow bus_num 0, the if is really not needed.
* correct the name buffer which is too small for bus_num >= 10000. Itshould be 9 bytes big, not 8.
Signed-off-by: Hans-Christian Egtvedt
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
rmmod/3080 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
(proc_subdir_lock){--..}, at: [] remove_proc_entry+0x40/0x191and this task is already holding:
(ide_lock){++..}, at: [] ide_unregister_subdriver+0x39/0xc8
which would create a new lock dependency:
(ide_lock){++..} -> (proc_subdir_lock){--..}but this new dependency connects a hard-irq-safe lock:
(ide_lock){++..}
... which became hard-irq-safe at:
[] lock_acquire+0x4b/0x6b
[] _spin_lock_irqsave+0x22/0x32
[] ide_intr+0x17/0x1a9
[] handle_IRQ_event+0x20/0x4d
[] __do_IRQ+0x94/0xef
[] do_IRQ+0x9e/0xbdto a hard-irq-unsafe lock:
(proc_subdir_lock){--..}
... which became hard-irq-unsafe at:
... [] lock_acquire+0x4b/0x6b
[] _spin_lock+0x19/0x28
[] xlate_proc_name+0x1b/0x99
[] proc_create+0x46/0xdf
[] create_proc_entry+0x62/0xa5
[] proc_misc_init+0x1c/0x1d2
[] proc_root_init+0x4c/0xe9
[] start_kernel+0x294/0x3b3Move ide_remove_proc_entries() out from under ide_lock; there is nothing
that indicates that this is needed.In specific, the call to ide_add_proc_entries() is unprotected, and there
is nothing else in the file using the respective ->proc fields. Also the
lock order around destroy_proc_ide_interface() suggests this.Alan sayeth:
proc_ide_write_settings walks the setting list under ide_setting_sem, read
ditto. remove_proc_entry is doing proc side housekeeping.Looks fine to me, although that old code is such a mess anything could be
going on.Signed-off-by: Peter Zijlstra
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Jeff noted that the via driver returned an error to an unsigned int in a
a case where errors are not permitted. Move the check down earlier so we
can handle it properly. Not as pretty but it works this way and avoids
hacking up ugly stuff in the legacy ide core.Signed-off-by: Alan Cox
Cc: Jeff Garzik
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add SysRq-X support: show blocked (TASK_UNINTERRUPTIBLE) tasks only.
Useful for debugging IO stalls.
Signed-off-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Jeff Garzik
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Jeff Garzik
Cc: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Jeff Garzik
Cc: Adam Belay
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
i2o_scsi: handle sysfs failure
i2o_device:
* convert i2o_device_add() to return integer error code
rather than pointer. Fortunately -nobody- checks the return code of
this function, so changing has nil impact.
* handle errors thrown by device_register()More work in i2o_device remains.
Signed-off-by: Jeff Garzik
Cc: Markus Lidel
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Amol Lad
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Amol Lad
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Amol Lad
Acked-by: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add a driver for the Xilinx uartlite serial controller used in boards with
the PPC405 core in the Xilinx V2P/V4 fpgas.The hardware is very simple (baudrate/start/stopbits fixed and no break
support). See the datasheet for details:http://www.xilinx.com/bvdocs/ipcenter/data_sheet/opb_uartlite.pdf
See http://thread.gmane.org/gmane.linux.serial/1237/ for the email thread.
Signed-off-by: Peter Korsgaard
Acked-by: Olof Johansson
Cc: Russell King
Cc: Alan Cox
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
A pretty simple cleanup for cciss_interrupt_mode.
Signed-off-by: Mike Miller
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add the support for a large number of logical volumes. We will soon have
hardware that support up to 1024 logical volumes.Signed-off-by: Mike Miller
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove the no longer used revalidate_allvol function. It was replaced by
rebuild_lun_table.Signed-off-by: Mike Miller
Acked-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change our open to test for drv->heads like we do in other places in the
driver. Mostly for consistency.Signed-off-by: Mike Miller
Acked-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change the blk_queue_max_sectors from 512 to 2048. This helps increase
performance.[akpm@osdl.org: s/sector_size/max_sectors/]
Signed-off-by: Mike Miller
Cc: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Unconditionally disable DMA prefetch on the P600 controller. An ASIC bug may
result in prefetching beyond the end of physical memory.Signed-off-by: Mike Miller
Acked-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change the SSID on the E500 as a workaround for a firmware bug. It looks like
the original patch was backed out between rc2 and rc4.Signed-off-by: Mike Miller
Acked-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remove #define NR_CMDS and replace it w/hba[i]->nr_cmds. Most Smart Array
controllers can support up to 1024 commands but the E200 family can only
support 128. To prevent annoying "fifo full" messages we define nr_cmds on a
per controller basis by adding it the product table.Signed-off-by: Mike Miller
Acked-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add the support to fire up on any HP RAID class device that has a valid cciss
signature.Signed-off-by: Mike Miller
Acked-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Change the cciss version number to 3.6.14 to reflect the following
functionality changes added by the rest of the set. They include:- Support to fire up on any HP RAID class controller
- Increase nr_cmds to 512 for most controllers by adding it to the product table
- PCI subsystem ID fix fix was pulled
- Disable DMA prefetch for the P600 on IPF platforms
- Change from 512 to 2048 sector_size for performance
- Fix in cciss_open for consistency
- Remove the no longer used revalidate_allvol function
- Bug fix for busy configuring
- Support for more than 16 logical volumes
- Cleanups in cciss_interrupt_mode
- Fix for iostats, it's been broken for several kernel releasesSigned-off-by: Mike Miller
Acked-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move process freezing functions from include/linux/sched.h to freezer.h, so
that modifications to the freezer or the kernel configuration don't require
recompiling just about everything.[akpm@osdl.org: fix ueagle driver]
Signed-off-by: Nigel Cunningham
Cc: "Rafael J. Wysocki"
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
doneThe script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
SLAB_DMA is an alias of GFP_DMA. This is the last one so we
remove the leftover comment too.Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
SLAB_KERNEL is an alias of GFP_KERNEL.
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
SLAB_ATOMIC is an alias of GFP_ATOMIC
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
