]> err.no Git - linux-2.6/log
linux-2.6
16 years agoIB/ipath: Fix link up LED display
Arthur Jones [Thu, 17 Apr 2008 04:01:13 +0000 (21:01 -0700)]
IB/ipath: Fix link up LED display

The check for link up was incorrect, thus setting the LED display
inconsistently with the link state.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Fix error recovery for send buffer status after chip freeze mode
Ralph Campbell [Thu, 17 Apr 2008 04:01:13 +0000 (21:01 -0700)]
IB/ipath: Fix error recovery for send buffer status after chip freeze mode

The error recovery code for updating the driver's cached status information
for which send buffers are busy or free wasn't updated for IBA7220.
It should be similar to the initialization code in enable_chip().

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Fix byte order of pioavail in handle_errors()
Ralph Campbell [Thu, 17 Apr 2008 04:01:13 +0000 (21:01 -0700)]
IB/ipath: Fix byte order of pioavail in handle_errors()

Fix byte order of value assigned to pioavailshadow.  This bug was
detected by sparse endianness warnings.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/mthca: Avoid integer overflow when allocating huge ICM table
Roland Dreier [Thu, 17 Apr 2008 04:01:13 +0000 (21:01 -0700)]
IB/mthca: Avoid integer overflow when allocating huge ICM table

In mthca_alloc_icm_table(), the number of entries to allocate for the
table->icm array is computed by calculating obj_size * nobj and then
dividing by MTHCA_TABLE_CHUNK_SIZE.  If nobj is really large, then
obj_size * nobj may overflow and the division may get the wrong value
(even a negative value).  Fix this by calculating the number of
objects per chunk and then dividing nobj by this value instead.

This patch allows crazy configurations such as loading ib_mthca with
the module parameter num_mtt=33554432 to work properly.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/mthca: Avoid integer overflow when dealing with profile size
Roland Dreier [Thu, 17 Apr 2008 04:01:13 +0000 (21:01 -0700)]
IB/mthca: Avoid integer overflow when dealing with profile size

mthca_make_profile() returns the size in bytes of the HCA context
layout it creates, or a negative value if an error occurs.  However,
the return value is declared as u64 and the memfree initialization
path casts this value to int to test if it is negative.  This makes it
think incorrectly than an error has occurred if the context size
happens to be bigger than 2GB, since this turns into a negative int.

Fix this by having mthca_make_profile() return an s64 and testing
for an error by checking whether this 64-bit value itself is negative.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ehca: Remove tgid checking
Hoang-Nam Nguyen [Thu, 17 Apr 2008 04:01:13 +0000 (21:01 -0700)]
IB/ehca: Remove tgid checking

Pavel Emelyanov <xemul@openvz.org> mentioned in <http://lkml.org/lkml/2008/3/17/131>
that the task_struct->tgid field is about to become deprecated, so the
uses in the ehca driver need to be fixed up.

However, all the uses in ehca are for some object ownership checking
that is not really needed, and anyway is implementing a policy that
should be in common code rather than a low-level driver.  So just
remove all the checks.

Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/srp: Enforce protocol limit on srp_sg_tablesize
David Dillow [Thu, 17 Apr 2008 04:01:12 +0000 (21:01 -0700)]
IB/srp: Enforce protocol limit on srp_sg_tablesize

The current SRP initiator will allow unlimited s/g entries in the
indirect descriptors lists, but the entry count field in the SRP_CMD
request is 8 bits, so setting srp_sg_tablesize too large will open the
possibility of wrapping the count and generating invalid requests.

Clamp srp_sg_tablesize to the protocol limits to prevent surprises.

Reported by Martin W. Schlining III <mschlining@datadirectnet.com>.

Signed-off-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Enable 4KB MTU
Dave Olson [Thu, 17 Apr 2008 04:01:12 +0000 (21:01 -0700)]
IB/ipath: Enable 4KB MTU

Enable use of 4KB MTU.  Since the driver uses more pinned memory for
receive buffers when the 4KB MTU is enabled, whether or not the fabric
supports that MTU, add a "mtu4096" module parameter that can be used to
limit the MTU to 2KB when it is known that 4KB MTUs can't be used
anyway.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Shared context code needs to be sure device is usable
Dave Olson [Thu, 17 Apr 2008 04:01:12 +0000 (21:01 -0700)]
IB/ipath: Shared context code needs to be sure device is usable

The code was checking if units are present, but not that present units
were usable (link up, etc.)

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Provide I/O bus speeds for diagnostic purposes
Arthur Jones [Thu, 17 Apr 2008 04:01:12 +0000 (21:01 -0700)]
IB/ipath: Provide I/O bus speeds for diagnostic purposes

Modern I/O buses like PCIe and HT can be configured for multiple speeds
and widths.  When an ipath HCA seems to have lower than expected
performance, it is very useful to be able to display what the driver
thinks the bus speed is.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Make some constants chip-specific, related cleanup
Dave Olson [Thu, 17 Apr 2008 04:01:12 +0000 (21:01 -0700)]
IB/ipath: Make some constants chip-specific, related cleanup

This patch makes some constants chip-specific, and makes some related
changes to prepare for supporting another HCA.

Signed-off-by: Dave Olson <dave.olson@qlogic.com
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Misc sparse warning cleanup
Arthur Jones [Thu, 17 Apr 2008 04:01:11 +0000 (21:01 -0700)]
IB/ipath: Misc sparse warning cleanup

Recent sparse versions and kernel cleanups knock down the false positive
rate of the ipath driver code to a point where having it be sparse clean
is worthwhile. Here we fixup the sparse warnings.  Some of these warnings
(and the impetus to run sparse again) are due to work by Roland Dreier.

Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/mthca: Add IPoIB checksum offload support
Eli Cohen [Thu, 17 Apr 2008 04:01:11 +0000 (21:01 -0700)]
IB/mthca: Add IPoIB checksum offload support

Arbel and Sinai devices support checksum generation and verification
of TCP and UDP packets for UD IPoIB messages.  This patch checks if
the HCA supports this and sets the IB_DEVICE_UD_IP_CSUM capability
flag if it does.  It implements support for handling the IB_SEND_IP_CSUM
send flag and setting the csum_ok field in receive work completions.

Signed-off-by: Eli Cohen <eli@mellnaox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/mlx4: Add IPoIB checksum offload support
Eli Cohen [Thu, 17 Apr 2008 04:01:10 +0000 (21:01 -0700)]
IB/mlx4: Add IPoIB checksum offload support

ConnectX devices support checksum generation and verification of TCP
and UDP packets for UD IPoIB messages.  This patch checks if the HCA
supports this and sets the IB_DEVICE_UD_IP_CSUM capability flag if it
does.  It implements support for handling the IB_SEND_IP_CSUM send
flag and setting the csum_ok field in receive work completions.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Ali Ayub <ali@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIPoIB: Use checksum offload support if available
Eli Cohen [Thu, 17 Apr 2008 04:01:10 +0000 (21:01 -0700)]
IPoIB: Use checksum offload support if available

For HCAs that support checksum offload (ie that set IB_DEVICE_UD_IP_CSUM
in the device capabilities flags), have IPoIB set NETIF_F_IP_CSUM and
use the HCA to generate and verify IP checksums.

Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB: Replace remaining __FUNCTION__ occurrences with __func__
Harvey Harrison [Thu, 17 Apr 2008 04:01:10 +0000 (21:01 -0700)]
IB: Replace remaining __FUNCTION__ occurrences with __func__

__FUNCTION__ is gcc-specific, use __func__ instead.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ehca: Make symbols used only in a single source file static
Roland Dreier [Thu, 17 Apr 2008 04:01:10 +0000 (21:01 -0700)]
IB/ehca: Make symbols used only in a single source file static

Allow the compiler to optimize better and generate smaller code:

add/remove: 0/6 grow/shrink: 2/0 up/down: 1528/-1864 (-336)
function                                     old     new   delta
.ehca_set_pagebuf                           1344    2172    +828
.ehca_probe                                 2312    3012    +700
ehca_set_pagebuf_phys                         24       -     -24
ehca_set_pagebuf_fmr                          24       -     -24
ehca_init_device                              24       -     -24
.ehca_set_pagebuf_fmr                        480       -    -480
.ehca_set_pagebuf_phys                       512       -    -512
.ehca_init_device                            800       -    -800

Also this fixes warnings like:

    drivers/infiniband/hw/ehca/ehca_mrmw.c:2015:5: warning: symbol 'ehca_set_pagebuf_fmr' was not declared. Should it be static?

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/nes: Make symbols used only in a single source file static
Roland Dreier [Thu, 17 Apr 2008 04:01:09 +0000 (21:01 -0700)]
RDMA/nes: Make symbols used only in a single source file static

Avoid namespace pollution and allow the compiler to optimize better.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/nes: Use proper format and cast to print dma_addr_t
Roland Dreier [Thu, 17 Apr 2008 04:01:09 +0000 (21:01 -0700)]
RDMA/nes: Use proper format and cast to print dma_addr_t

On some platforms, eg sparc64, dma_addr_t is not the same size as a
pointer, so printing dma_addr_t values by casting to void * and using
a %p format generates warnings.  Fix this by casting to unsigned long
and using %lx instead.  This fixes the warnings:

    drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_setup_virt_qp':
    drivers/infiniband/hw/nes/nes_verbs.c:1047: warning: cast to pointer from integer of different size
    drivers/infiniband/hw/nes/nes_verbs.c:1078: warning: cast to pointer from integer of different size
    drivers/infiniband/hw/nes/nes_verbs.c:1078: warning: cast to pointer from integer of different size
    drivers/infiniband/hw/nes/nes_verbs.c: In function 'nes_reg_user_mr':
    drivers/infiniband/hw/nes/nes_verbs.c:2657: warning: cast to pointer from integer of different size

Reported by Andrew Morton <akpm@linux-foundation.org>.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/nes: Remove unused nes_netdev_exit() function
Roland Dreier [Thu, 17 Apr 2008 04:01:09 +0000 (21:01 -0700)]
RDMA/nes: Remove unused nes_netdev_exit() function

nes_netdev_exit() has no callers, so delete it.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/nes: Remove redundant NULL check in nes_unregister_ofa_device()
Roland Dreier [Thu, 17 Apr 2008 04:01:09 +0000 (21:01 -0700)]
RDMA/nes: Remove redundant NULL check in nes_unregister_ofa_device()

nes_unregister_ofa_device() dereferences the nesibdev pointer before
testing if it's NULL.  Also, the test is doubly redundant because the
only caller of nes_unregister_ofa_device() is nes_destroy_ofa_device(),
which already tests if nesibdev is NULL.  Remove the unnecessary test.

This was spotted by the Coverity checker (CID 2190).

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/uverbs: Use alloc_file() instead of get_empty_filp()
Roland Dreier [Thu, 17 Apr 2008 04:01:08 +0000 (21:01 -0700)]
IB/uverbs: Use alloc_file() instead of get_empty_filp()

Christoph Hellwig wants to unexport get_empty_filp(), which is an ugly
internal interface.  Change the modular user in ib_uverbs_alloc_event_file()
to use the better alloc_file() interface; this makes the code cleaner too.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/uverbs: Don't store struct file * for event files
Roland Dreier [Thu, 17 Apr 2008 04:01:08 +0000 (21:01 -0700)]
IB/uverbs: Don't store struct file * for event files

The file member of struct ib_uverbs_event_file was only used to keep
track of whether the file had been closed or not.  The only thing we
ever did with the value was check if it was NULL or not.  Simplify the
code and get rid of the need to keep track of the struct file * we
allocate by replacing the file member with an is_closed member.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agomlx4_core: Fix confusion between mlx4_event and mlx4_dev_event enums
Roland Dreier [Thu, 17 Apr 2008 04:01:08 +0000 (21:01 -0700)]
mlx4_core: Fix confusion between mlx4_event and mlx4_dev_event enums

The struct mlx4_interface.event() method was supposed to get an enum
mlx4_dev_event, but the driver code was actually passing in the
hardware enum mlx4_event values.  Fix up the callers of
mlx4_dispatch_event() so that they pass in the right type of value,
and fix up the event method in mlx4_ib so that it can handle the enum
mlx4_dev_event values.

This eliminates the need for the subtype parameter to the event
method, so remove it.

This also fixes the sparse warning

    drivers/net/mlx4/intf.c:127:48: warning: mixing different enum types
    drivers/net/mlx4/intf.c:127:48:     int enum mlx4_event  versus
    drivers/net/mlx4/intf.c:127:48:     int enum mlx4_dev_event

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/amso1100: Endian annotate mqsq allocator
Roland Dreier [Thu, 17 Apr 2008 04:01:08 +0000 (21:01 -0700)]
RDMA/amso1100: Endian annotate mqsq allocator

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/amso1100: Start of endianness annotation
Roland Dreier [Thu, 17 Apr 2008 04:01:08 +0000 (21:01 -0700)]
RDMA/amso1100: Start of endianness annotation

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
16 years agoRDMA/nes: Delete unused variables
Roland Dreier [Thu, 17 Apr 2008 04:01:08 +0000 (21:01 -0700)]
RDMA/nes: Delete unused variables

None of the cqp_reqs_XXX counters were ever used anywhere, and neither
was the nics_per_function variable.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/nes: Trivial endianness annotations
Roland Dreier [Thu, 17 Apr 2008 04:01:07 +0000 (21:01 -0700)]
RDMA/nes: Trivial endianness annotations

Fix a couple of htonl() that should really be ntohl().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/ucma: Endian annotation
Roland Dreier [Thu, 17 Apr 2008 04:01:07 +0000 (21:01 -0700)]
RDMA/ucma: Endian annotation

Add __force cast of node_guid to __u64, since we are sticking it into a
structure whose definition is shared with userspace.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/cm: Endianness annotations
Roland Dreier [Thu, 17 Apr 2008 04:01:07 +0000 (21:01 -0700)]
IB/cm: Endianness annotations

Mostly update the RB tree comparisons to force __be types to normal
integers, but the change to cm_format_sidr_req() is a real fix:
param->path->pkey is already __be16.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
16 years agoIB/mlx4: Endianness annotations
Roland Dreier [Thu, 17 Apr 2008 04:01:07 +0000 (21:01 -0700)]
IB/mlx4: Endianness annotations

Trivial fixes to stamp_send_wqe().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/ipath: Fix sparse warning about shadowed symbol
Roland Dreier [Thu, 17 Apr 2008 04:01:07 +0000 (21:01 -0700)]
IB/ipath: Fix sparse warning about shadowed symbol

Fix

    drivers/infiniband/hw/ipath/ipath_init_chip.c:526:10: warning: symbol 'val' shadows an earlier one
    drivers/infiniband/hw/ipath/ipath_init_chip.c:473:6: originally declared here

by giving the second val a different name.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Arthur Jones <arthur.jones@qlogic.com>
16 years agoIB/ipath: Fix sparse warning about pointer signedness
Arthur Jones [Thu, 17 Apr 2008 04:01:06 +0000 (21:01 -0700)]
IB/ipath: Fix sparse warning about pointer signedness

There's no reason for the third parameter of ipath_count_units() to be
a u32 *, so change it to be an int * instead.  This fixes the sparse
warning:

    drivers/infiniband/hw/ipath/ipath_file_ops.c:1654:47: warning: incorrect type in argument 3 (different signedness)
    drivers/infiniband/hw/ipath/ipath_file_ops.c:1654:47:    expected unsigned int [usertype] *maxportsp
    drivers/infiniband/hw/ipath/ipath_file_ops.c:1654:47:    got int *<noident>

Signed-off-by: Arthur Jones <arthur.jones@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB: Make struct ib_uobject.id a signed int
Roland Dreier [Thu, 17 Apr 2008 04:01:06 +0000 (21:01 -0700)]
IB: Make struct ib_uobject.id a signed int

IDR IDs are signed, so struct ib_uobject.id should be signed.  This
avoids some sparse pointer signedness warnings.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoRDMA/cxgb3: IDR IDs are signed
Roland Dreier [Thu, 17 Apr 2008 04:01:06 +0000 (21:01 -0700)]
RDMA/cxgb3: IDR IDs are signed

Fix sparse warnings about pointer signedness by using a signed int when
calling idr_get_new_above().

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
16 years agoRDMA/amso1100: Don't use 0UL as a NULL pointer
Roland Dreier [Thu, 17 Apr 2008 04:01:06 +0000 (21:01 -0700)]
RDMA/amso1100: Don't use 0UL as a NULL pointer

Write tests for NULL pointers as

if (!ptr)

instead of

if (ptr == 0UL)

to fix sparse warnings.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
16 years agomlx4_core: Move opening brace of function onto a new line
Roland Dreier [Thu, 17 Apr 2008 04:01:04 +0000 (21:01 -0700)]
mlx4_core: Move opening brace of function onto a new line

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/mlx4: Convert "if(foo)" to "if (foo)"
Roland Dreier [Thu, 17 Apr 2008 04:01:04 +0000 (21:01 -0700)]
IB/mlx4: Convert "if(foo)" to "if (foo)"

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoIB/mthca: Formatting cleanups
Roland Dreier [Thu, 17 Apr 2008 04:01:03 +0000 (21:01 -0700)]
IB/mthca: Formatting cleanups

Fix a few whitespace and other coding style problems.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
16 years agoLinux 2.6.25 v2.6.25
Linus Torvalds [Thu, 17 Apr 2008 02:49:44 +0000 (19:49 -0700)]
Linux 2.6.25

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Thu, 17 Apr 2008 01:58:37 +0000 (18:58 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  it821x: do not describe noraid parameter with its value
  Pb1200/DBAu1200: fix bad IDE resource size
  Au1200: IDE driver build fix
  Au1200: kill IDE driver function prototypes
  avr32 mustn't select HAVE_IDE

16 years agoit821x: do not describe noraid parameter with its value
Paul Bolle [Wed, 16 Apr 2008 23:14:33 +0000 (01:14 +0200)]
it821x: do not describe noraid parameter with its value

Describe noraid parameter with its name (and not its value).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoPb1200/DBAu1200: fix bad IDE resource size
Sergei Shtylyov [Wed, 16 Apr 2008 23:14:33 +0000 (01:14 +0200)]
Pb1200/DBAu1200: fix bad IDE resource size

The header files for the Pb1200/DBAu1200 boards have wrong definition for the
IDE interface's decoded range length -- it should be 512 bytes according to
what the IDE driver does.  In addition, the IDE platform device claims 1 byte
too many for its memory resource -- fix the platform code and the IDE driver
in accordance.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoAu1200: IDE driver build fix
Sergei Shtylyov [Wed, 16 Apr 2008 23:14:33 +0000 (01:14 +0200)]
Au1200: IDE driver build fix

The driver fails to compile with CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA enabled:

drivers/ide/mips/au1xxx-ide.c: In function `auide_build_dmatable':
drivers/ide/mips/au1xxx-ide.c:256: error: implicit declaration of function
`sg_virt'
drivers/ide/mips/au1xxx-ide.c:275: error: implicit declaration of function
`sg_next'
drivers/ide/mips/au1xxx-ide.c:275: warning: assignment makes pointer from
integer without a cast

Fix this by including <linux/scatterlist.h>. While at it, remove the #include's
without which the driver happily builds.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoAu1200: kill IDE driver function prototypes
Sergei Shtylyov [Wed, 16 Apr 2008 23:14:33 +0000 (01:14 +0200)]
Au1200: kill IDE driver function prototypes

Fix these warnings emitted when compiling drivers/ide/mips/au1xxx-ide.c:

include/asm/mach-au1x00/au1xxx_ide.h:137: warning: 'auide_tune_drive' declared
`static' but never defined
include/asm/mach-au1x00/au1xxx_ide.h:138: warning: 'auide_tune_chipset' declared
 `static' but never defined

by wiping out the whole "function prototyping" section from the header file
<asm-mips/mach-au1x00/au1xxx_ide.h> as it mostly declared functions that are
already dead in the IDE driver; move the only useful prototype into the driver.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoavr32 mustn't select HAVE_IDE
Adrian Bunk [Wed, 16 Apr 2008 23:14:32 +0000 (01:14 +0200)]
avr32 mustn't select HAVE_IDE

There's a libata based PATA driver for avr32, but no support for
drivers/ide/ on avr32.

This patch fixes the following compile error:

<--  snip  -->

...
  CC [M]  drivers/ide/ide-cd.o
In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/ide/ide-cd.c:37:
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/ide.h:209:21: error: asm/ide.h: No such file or directory
make[3]: *** [drivers/ide/ide-cd.o] Error 1

<--  snip  -->

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
16 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Wed, 16 Apr 2008 14:45:45 +0000 (07:45 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: update git url for blktrace
  io context: increment task attachment count in ioc_task_link()

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Wed, 16 Apr 2008 14:45:05 +0000 (07:45 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: remove broken usb-serial num_endpoints check
  USB: option: Add new vendor ID and device ID for AMOI HSDPA modem
  USB: support more Huawei data card product IDs
  USB: option.c: add more device IDs
  USB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver

16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Wed, 16 Apr 2008 14:44:27 +0000 (07:44 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  [TCP]: Add return value indication to tcp_prune_ofo_queue().
  PS3: gelic: fix the oops on the broken IE returned from the hypervisor
  b43legacy: fix DMA mapping leakage
  mac80211: remove message on receiving unexpected unencrypted frames
  Update rt2x00 MAINTAINERS entry
  Add rfkill to MAINTAINERS file
  rfkill: Fix device type check when toggling states
  b43legacy: Fix usage of struct device used for DMAing
  ssb: Fix usage of struct device used for DMAing
  MAINTAINERS: move to generic repository for iwlwifi
  b43legacy: fix initvals loading on bcm4303
  rtl8187: Add missing priv->vif assignments
  netconsole: only set CON_PRINTBUFFER if the user specifies a netconsole
  [CAN]: Update documentation of struct sockaddr_can
  MAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only
  [TCP]: Fix never pruned tcp out-of-order queue.
  [NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loop

16 years agoAFS: Do not describe debug parameters with their value
Paul Bolle [Wed, 16 Apr 2008 10:08:22 +0000 (11:08 +0100)]
AFS: Do not describe debug parameters with their value

Describe debug parameters with their names (and not their values).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoUSB: remove broken usb-serial num_endpoints check
Greg Kroah-Hartman [Mon, 14 Apr 2008 21:17:29 +0000 (14:17 -0700)]
USB: remove broken usb-serial num_endpoints check

The num_interrupt_in, num_bulk_in, and other checks in the usb-serial
code are just wrong, there are too many different devices out there with
different numbers of endpoints.  We need to just be sticking with the
device ids instead of trying to catch this kind of thing.  It broke too
many different devices.

This fixes a large number of usb-serial devices to get them working
properly again.

Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: option: Add new vendor ID and device ID for AMOI HSDPA modem
tang kai [Mon, 14 Apr 2008 02:06:35 +0000 (10:06 +0800)]
USB: option: Add new vendor ID and device ID for AMOI HSDPA modem

This patch add new vendor ID and device ID  for AMOI HSDPA modem.

From: tang kai <tangk73@hotmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: support more Huawei data card product IDs
fangxiaozhi [Thu, 10 Apr 2008 06:51:06 +0000 (14:51 +0800)]
USB: support more Huawei data card product IDs

 - declare the unusal device for Huawei data card devices in
   unusual_devs.h
 - disable the product ID matching for Huawei data card devices in
   usb_match_device function of driver.c
 - declare the product IDs in option.c.

Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: option.c: add more device IDs
Matthias Urlichs [Thu, 10 Apr 2008 08:13:32 +0000 (10:13 +0200)]
USB: option.c: add more device IDs

Add devices by AMOI and NovatelWireless.

Signed-Off-By: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years agoUSB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver
James Cameron [Wed, 9 Apr 2008 08:59:13 +0000 (18:59 +1000)]
USB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver

The modem was detected, the ttyUSB{0,1,2} appeared, a call could be
made, and the expected data rate was achieved.  Tested for an hour or
two, total of 100Mb.  I shall do more testing.

Signed-off-by: James Cameron <quozl@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
16 years ago[TCP]: Add return value indication to tcp_prune_ofo_queue().
Vitaliy Gusev [Wed, 16 Apr 2008 03:26:34 +0000 (20:26 -0700)]
[TCP]: Add return value indication to tcp_prune_ofo_queue().

Returns non-zero if tp->out_of_order_queue was seen non-empty.
This allows tcp_try_rmem_schedule() to return early.

Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoacpi: unneccessary to scan the PCI bus already scanned
yakui.zhao@intel.com [Tue, 15 Apr 2008 21:34:49 +0000 (14:34 -0700)]
acpi: unneccessary to scan the PCI bus already scanned

http://bugzilla.kernel.org/show_bug.cgi?id=10124

this change:

      commit 08f1c192c3c32797068bfe97738babb3295bbf42
      Author: Muli Ben-Yehuda <muli@il.ibm.com>
      Date:   Sun Jul 22 00:23:39 2007 +0300

         x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata

         This patch introduces struct pci_sysdata to x86 and x86-64, and
         converts the existing two users (NUMA, Calgary) to use it.

         This lays the groundwork for having other users of sysdata, such as
         the PCI domains work.

         The Calgary bits are tested, the NUMA bits just look ok.

replaces pcibios_scan_root by pci_scan_bus_parented...

but in pcibios_scan_root we have a check about scanned busses.

Cc: <yakui.zhao@intel.com>
Cc: Stian Jordet <stian@jordet.net>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <greg@kroah.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Yinghai Lu" <yhlu.kernel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoacpi thermal trip points increased to 12
Krzysztof Helt [Tue, 15 Apr 2008 21:34:47 +0000 (14:34 -0700)]
acpi thermal trip points increased to 12

The THERMAL_MAX_TRIPS value is set to 10.  It is too few for the Compaq AP550
machine which has 12 trip points.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Len Brown <lenb@kernel.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoacpi: bus: check once more for an empty list after locking it
Chuck Ebbert [Tue, 15 Apr 2008 21:34:47 +0000 (14:34 -0700)]
acpi: bus: check once more for an empty list after locking it

List could have become empty after the unlocked check that was made earlier,
so check again inside the lock.

Should fix https://bugzilla.redhat.com/show_bug.cgi?id=427765

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Cc: <stable@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agospi: spi_s3c24xx must initialize num_chipselect
Ben Dooks [Tue, 15 Apr 2008 21:34:46 +0000 (14:34 -0700)]
spi: spi_s3c24xx must initialize num_chipselect

The SPI core now expects num_chipselect to be set correctly as due to added
checks on the chip being selected before an transfer is allowed.  This patch
adds a num_cs field to the platform data which needs to be set correctly
before adding the SPI platform device.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agospi: spi_s3c24xx must initialize bus_num
Ben Dooks [Tue, 15 Apr 2008 21:34:45 +0000 (14:34 -0700)]
spi: spi_s3c24xx must initialize bus_num

Pass the bus number we expect the S3C24XX SPI driver to attach to via the
platform data.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agospi: spi_s3c24xx driver must init completion
Ben Dooks [Tue, 15 Apr 2008 21:34:44 +0000 (14:34 -0700)]
spi: spi_s3c24xx driver must init completion

The s3c24xx_spi_txrx() function should initialise the completion each time
before using it, otherwise we end up with the possibility of returning success
before the interrupt handler has processed all the data.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agovfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs
Jan Kara [Tue, 15 Apr 2008 21:34:43 +0000 (14:34 -0700)]
vfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs

mb_cache_entry_alloc() was allocating cache entries with GFP_KERNEL.  But
filesystems are calling this function while holding xattr_sem so possible
recursion into the fs violates locking ordering of xattr_sem and transaction
start / i_mutex for ext2-4.  Change mb_cache_entry_alloc() so that filesystems
can specify desired gfp mask and use GFP_NOFS from all of them.

Signed-off-by: Jan Kara <jack@suse.cz>
Reported-by: Dave Jones <davej@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoDocumentation: correct overcommit caveat in hugetlbpage.txt
Nishanth Aravamudan [Tue, 15 Apr 2008 21:34:43 +0000 (14:34 -0700)]
Documentation: correct overcommit caveat in hugetlbpage.txt

As shown by Gurudas Pai recently, we can put hugepages into the surplus
state (by echo 0 > /proc/sys/vm/nr_hugepages), even when
/proc/sys/vm/nr_overcommit_hugepages is 0. This is actually correct, to
allow the original goal (shrink the static pool to 0) to succeed (we are
converting hugepages to surplus because they are in use). However, the
documentation does not accurately reflect this case. Update it.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoadd "Isolate" migratetype name to /proc/pagetypeinfo
KOSAKI Motohiro [Tue, 15 Apr 2008 21:34:42 +0000 (14:34 -0700)]
add "Isolate" migratetype name to /proc/pagetypeinfo

In a5d76b54a3f3a40385d7f76069a2feac9f1bad63 (memory unplug: page isolation by
KAMEZAWA Hiroyuki), "isolate" migratetype added.  but unfortunately, it
doesn't treat /proc/pagetypeinfo display logic.

this patch add "Isolate" to pagetype name field.

/proc/pagetype
before:
------------------------------------------------------------------------------------------------------------------------
Free pages count per migrate type at order       0      1      2      3      4      5      6      7      8      9     10
Node    0, zone      DMA, type    Unmovable      1      2      2      2      1      2      2      1      1      0      0
Node    0, zone      DMA, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone      DMA, type      Movable      2      3      3      1      3      3      2      0      0      0      0
Node    0, zone      DMA, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone      DMA, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone   Normal, type    Unmovable      1      9      7      4      1      1      1      1      0      0      0
Node    0, zone   Normal, type  Reclaimable      5      2      0      0      1      1      0      0      0      1      0
Node    0, zone   Normal, type      Movable      0      1      1      0      0      0      1      0      0      1     60
Node    0, zone   Normal, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone   Normal, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type    Unmovable      0      0      1      1      1      0      1      1      2      2      0
Node    0, zone  HighMem, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type      Movable    236     62      6      2      2      1      1      0      1      1     16
Node    0, zone  HighMem, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone  HighMem, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0

Number of blocks type     Unmovable  Reclaimable      Movable      Reserve       <NULL>
Node 0, zone      DMA            1            0            2       1            0
Node 0, zone   Normal           10           40          169       1            0
Node 0, zone  HighMem            2            0          283       1            0

after:
------------------------------------------------------------------------------------------------------------------------
Free pages count per migrate type at order       0      1      2      3      4      5      6      7      8      9     10
Node    0, zone      DMA, type    Unmovable      1      2      2      2      1      2      2      1      1      0      0
Node    0, zone      DMA, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone      DMA, type      Movable      2      3      3      1      3      3      2      0      0      0      0
Node    0, zone      DMA, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone      DMA, type      Isolate      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone   Normal, type    Unmovable      0      2      1      1      0      1      0      0      0      0      0
Node    0, zone   Normal, type  Reclaimable      1      1      1      1      1      0      1      1      1      0      0
Node    0, zone   Normal, type      Movable      0      1      1      1      0      1      0      1      0      0    196
Node    0, zone   Normal, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone   Normal, type      Isolate      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type    Unmovable      0      1      0      0      0      1      1      1      2      2      0
Node    0, zone  HighMem, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type      Movable      1      0      1      1      0      0      0      0      1      0    200
Node    0, zone  HighMem, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone  HighMem, type      Isolate      0      0      0      0      0      0      0      0      0      0      0

Number of blocks type     Unmovable  Reclaimable      Movable      Reserve      Isolate
Node 0, zone      DMA            1            0            2       1            0
Node 0, zone   Normal            8            4          207       1            0
Node 0, zone  HighMem            2            0          283       1            0

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix typos in Documentation/filesystems/seq_file.txt
Dmitri Vorobiev [Tue, 15 Apr 2008 21:34:40 +0000 (14:34 -0700)]
Fix typos in Documentation/filesystems/seq_file.txt

A couple of typos crept into the newly added document about the seq_file
interface.  This patch corrects those typos and simultaneously deletes
unnecessary trailing spaces.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agouml: compile error fix
WANG Cong [Tue, 15 Apr 2008 21:34:38 +0000 (14:34 -0700)]
uml: compile error fix

This patch fixes this error:

In file included from /home/wangcong/projects/linux-2.6/arch/um/kernel/smp.c:9:
include2/asm/tlb.h: In function `tlb_remove_page':
include2/asm/tlb.h:101: error: implicit declaration of function `page_cache_release'

And since including <linux/pagemap.h> in <linux/swap.h> will break sparc,
we add this #include in uml's own header.

Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomemcg: fix oops in oom handling
Li Zefan [Tue, 15 Apr 2008 21:34:37 +0000 (14:34 -0700)]
memcg: fix oops in oom handling

When I used a test program to fork mass processes and immediately move them to
a cgroup where the memory limit is low enough to trigger oom kill, I got oops:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000808
IP: [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
PGD 4c95f067 PUD 4406c067 PMD 0
Oops: 0002 [1] SMP
CPU 2
Modules linked in:

Pid: 11973, comm: a.out Not tainted 2.6.25-rc7 #5
RIP: 0010:[<ffffffff8045c47f>]  [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
RSP: 0018:ffff8100448c7c30  EFLAGS: 00010002
RAX: 0000000000000202 RBX: 0000000000000009 RCX: 000000000001c9f3
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000808
RBP: ffff81007e444080 R08: 0000000000000000 R09: ffff8100448c7900
R10: ffff81000105f480 R11: 00000100ffffffff R12: ffff810067c84140
R13: 0000000000000001 R14: ffff8100441d0018 R15: ffff81007da56200
FS:  00007f70eb1856f0(0000) GS:ffff81007fbad3c0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000808 CR3: 000000004498a000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process a.out (pid: 11973, threadinfo ffff8100448c6000, task ffff81007da533e0)
Stack:  ffffffff8023ef5a 00000000000000d0 ffffffff80548dc0 00000000000000d0
 ffff810067c84140 ffff81007e444080 ffffffff8026cef9 00000000000000d0
 ffff8100441d0000 00000000000000d0 ffff8100441d0000 ffff8100505445c0
Call Trace:
 [<ffffffff8023ef5a>] ? force_sig_info+0x25/0xb9
 [<ffffffff8026cef9>] ? oom_kill_task+0x77/0xe2
 [<ffffffff8026d696>] ? mem_cgroup_out_of_memory+0x55/0x67
 [<ffffffff802910ad>] ? mem_cgroup_charge_common+0xec/0x202
 [<ffffffff8027997b>] ? handle_mm_fault+0x24e/0x77f
 [<ffffffff8022c4af>] ? default_wake_function+0x0/0xe
 [<ffffffff8027a17a>] ? get_user_pages+0x2ce/0x3af
 [<ffffffff80290fee>] ? mem_cgroup_charge_common+0x2d/0x202
 [<ffffffff8027a441>] ? make_pages_present+0x8e/0xa4
 [<ffffffff8027d1ab>] ? mmap_region+0x373/0x429
 [<ffffffff8027d7eb>] ? do_mmap_pgoff+0x2ff/0x364
 [<ffffffff80210471>] ? sys_mmap+0xe5/0x111
 [<ffffffff8020bfc9>] ? tracesys+0xdc/0xe1

Code: 00 00 01 48 8b 3c 24 e9 46 d4 dd ff f0 ff 07 48 8b 3c 24 e9 3a d4 dd ff fe 07 48 8b 3c 24 e9 2f d4 dd ff 9c 58 fa ba 00 01 00 00 <f0> 66 0f c1 17 38 f2 74 06 f3 90 8a 17 eb f6 c3 fa b8 00 01 00
RIP  [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
 RSP <ffff8100448c7c30>
CR2: 0000000000000808
---[ end trace c3702fa668021ea4 ]---

It's reproducable in a x86_64 box, but doesn't happen in x86_32.

This is because tsk->sighand is not guarded by RCU, so we have to
hold tasklist_lock, just as what out_of_memory() does.

Signed-off-by: Li Zefan <lizf@cn.fujitsu>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Pavel Emelianov <xemul@openvz.org>
Cc: Paul Menage <menage@google.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: David Rientjes <rientjes@cs.washington.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoserial: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:35 +0000 (14:34 -0700)]
serial: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable serial
platform drivers, to re-enable auto loading.

NOTE that Kconfig for some of these drivers doesn't allow modular builds, and
thus doesn't match the driver source's unload support.  Presumably their
unload code is buggy and/or weakly tested...

[dbrownell@users.sourceforge.net: more drivers, registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agopcmcia: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:34 +0000 (14:34 -0700)]
pcmcia: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable PCMCIA
platform drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net: registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomisc: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:33 +0000 (14:34 -0700)]
misc: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable 'misc'
platform drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net:  bugfix, registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agofbdev: fix /proc/fb oops after module removal
Alexey Dobriyan [Tue, 15 Apr 2008 21:34:33 +0000 (14:34 -0700)]
fbdev: fix /proc/fb oops after module removal

/proc/fb is not removed during rmmod.

Steps to reproduce:

modprobe fb
rmmod fb
ls /proc

BUG: unable to handle kernel paging request at ffffffffa0094370
IP: [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
PGD 203067 PUD 207063 PMD 17e758067 PTE 0
Oops: 0000 [1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:05:02.0/resource
CPU 1
Modules linked in: nf_conntrack_irc xt_state iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack ip_tables x_tables vfat fat usbhid ehci_hcd uhci_hcd usbcore sr_mod cdrom [last unloaded: fb]
Pid: 21205, comm: ls Not tainted 2.6.25-rc8-mm2 #14
RIP: 0010:[<ffffffff802b92a1>]  [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
RSP: 0018:ffff81017c4bfc78  EFLAGS: 00010246
RAX: 0000000000008000 RBX: ffff8101787f5470 RCX: 0000000048011ccc
RDX: ffffffffa0094320 RSI: ffff810006ad43b0 RDI: ffff81017fc2cc00
RBP: ffff81017e450300 R08: 0000000000000002 R09: ffff81017c5d1000
R10: 0000000000000000 R11: 0000000000000246 R12: ffff81016b903a28
R13: ffff81017f822020 R14: ffff81017c4bfd58 R15: ffff81017f822020
FS:  00007f08e71696f0(0000) GS:ffff81017fc06480(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffffffffa0094370 CR3: 000000017e54a000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process ls (pid: 21205, threadinfo ffff81017c4be000, task ffff81017de48770)
Stack:  ffff81017c5d1000 00000000ffffffea ffff81017e450300 ffffffff802bdd1e
 ffff81017f802258 ffff81017c4bfe48 ffff81016b903a28 ffff81017f822020
 ffff81017c4bfd48 ffffffff802b9ba0 ffff81016b903a28 ffff81017f802258
Call Trace:
 [<ffffffff802bdd1e>] ? proc_lookup_de+0x8e/0x100
 [<ffffffff802b9ba0>] ? proc_root_lookup+0x20/0x60
 [<ffffffff802882a7>] ? do_lookup+0x1b7/0x210
 [<ffffffff8028883d>] ? __link_path_walk+0x53d/0x7f0
 [<ffffffff80295eb8>] ? mntput_no_expire+0x28/0x130
 [<ffffffff80288b4a>] ? path_walk+0x5a/0xc0
 [<ffffffff80288dd3>] ? do_path_lookup+0x83/0x1c0
 [<ffffffff80287785>] ? getname+0xe5/0x210
 [<ffffffff80289adb>] ? __user_walk_fd+0x4b/0x80
 [<ffffffff8028236c>] ? vfs_lstat_fd+0x2c/0x70
 [<ffffffff8028bf1e>] ? filldir+0xae/0xf0
 [<ffffffff802b92e9>] ? de_put+0x9/0x50
 [<ffffffff8029633d>] ? mnt_want_write+0x2d/0x80
 [<ffffffff8029339f>] ? touch_atime+0x1f/0x170
 [<ffffffff802b9b1d>] ? proc_root_readdir+0x7d/0xa0
 [<ffffffff802825e7>] ? sys_newlstat+0x27/0x50
 [<ffffffff8028bffb>] ? vfs_readdir+0x9b/0xd0
 [<ffffffff8028c0fe>] ? sys_getdents+0xce/0xe0
 [<ffffffff8020b39b>] ? system_call_after_swapgs+0x7b/0x80

Code: b7 83 b2 00 00 00 25 00 f0 00 00 3d 00 80 00 00 74 19 48 89 93 f0 00 00 00 48 89 df e8 39 9a fd ff 48 89 d8 48 83 c4 08 5b 5d c3 <48> 83 7a 50 00 48 c7 c0 60 16 45 80 48 c7 c2 40 17 45 80 48 0f
RIP  [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
 RSP <ffff81017c4bfc78>
CR2: ffffffffa0094370
---[ end trace c71hiarjan8ab739 ]---

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
"Antonino A. Daplas" <adaplas@pol.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoleds: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:30 +0000 (14:34 -0700)]
leds: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform
modalias is prefixed with "platform:". Add MODULE_ALIAS() to the
hotpluggable platform LED drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net: more drivers, registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agortc: fix the error in the function of cmos_set_alarm
Zhao Yakui [Tue, 15 Apr 2008 21:34:29 +0000 (14:34 -0700)]
rtc: fix the error in the function of cmos_set_alarm

There is a bug in the function of cmos_set_alarm.  RTC alarm time for October
can't be set correctly.

For October: 0x0A will be written into the RTC region (MONTH_ALARM) in current
kernel.  But in fact 0x10 should be written.  Wildcards are also not handled
correctly.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agommc: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:28 +0000 (14:34 -0700)]
mmc: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable MMC host
platform drivers, to re-enable auto loading.

Also, add missing owner declarations in driver init.

[dbrownell@users.sourceforge.net: registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agomm: sparsemem memory_present() fix
Ingo Molnar [Tue, 15 Apr 2008 23:40:00 +0000 (01:40 +0200)]
mm: sparsemem memory_present() fix

Fix memory corruption and crash on 32-bit x86 systems.

If a !PAE x86 kernel is booted on a 32-bit system with more than 4GB of
RAM, then we call memory_present() with a start/end that goes outside
the scope of MAX_PHYSMEM_BITS.

That causes this loop to happily walk over the limit of the sparse
memory section map:

    for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) {
                unsigned long section = pfn_to_section_nr(pfn);
                struct mem_section *ms;

                sparse_index_init(section, nid);
                set_section_nid(section, nid);

                ms = __nr_to_section(section);
                if (!ms->section_mem_map)
                        ms->section_mem_map = sparse_encode_early_nid(nid) |
                                SECTION_MARKED_PRESENT;

'ms' will be out of bounds and we'll corrupt a small amount of memory by
encoding the node ID and writing SECTION_MARKED_PRESENT (==0x1) over it.

The corruption might happen when encoding a non-zero node ID, or due to
the SECTION_MARKED_PRESENT which is 0x1:

mmzone.h:#define SECTION_MARKED_PRESENT (1UL<<0)

The fix is to sanity check anything the architecture passes to
sparsemem.

This bug seems to be rather old (as old as sparsemem support itself),
but the exact incarnation depended on random details like configs, which
made this bug more prominent in v2.6.25-to-be.

An additional enhancement might be to print a warning about ignored or
trimmed memory ranges.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Yinghai Lu <Yinghai.Lu@sun.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...
David S. Miller [Wed, 16 Apr 2008 02:15:00 +0000 (19:15 -0700)]
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-2.6

16 years ago[PARISC] fix signal trampoline cache flushing
Kyle McMartin [Tue, 15 Apr 2008 22:36:38 +0000 (18:36 -0400)]
[PARISC] fix signal trampoline cache flushing

The signal trampolines were accidently flushing the kernel I$ instead of
the users.  Fix that up, and also add a missing user D$ flush while
we're at it.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoFix locking bug in "acquire_console_semaphore_for_printk()"
Linus Torvalds [Tue, 15 Apr 2008 20:09:54 +0000 (13:09 -0700)]
Fix locking bug in "acquire_console_semaphore_for_printk()"

When I cleaned up printk() and split up the printk locking logic in
commit 266c2e0abeca649fa6667a1a427ad1da507c6375 ("Make printk() console
semaphore accesses sensible") I had incorrectly moved the call to
have_callable_console() outside of the console semaphore.

That was buggy.  The console semaphore protects the console_drivers list
that is used by have_callable_console().

Thanks go to Bongani Hlope who saw this as a hang on shutdown and reboot
and bisected the bug to the right commit, and tested this patch. See

http://lkml.org/lkml/2008/4/11/315

Bisected-and-tested-by: Bongani Hlope <bonganilinux@mweb.co.za>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
16 years agoPS3: gelic: fix the oops on the broken IE returned from the hypervisor
Masakazu Mokuno [Mon, 14 Apr 2008 09:07:21 +0000 (18:07 +0900)]
PS3: gelic: fix the oops on the broken IE returned from the hypervisor

This fixes the bug that the driver would try to over-scan the memory
if the sum of the length field of every IEs does not match the length
returned from the hypervisor.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43legacy: fix DMA mapping leakage
Stefano Brivio [Sun, 13 Apr 2008 22:59:49 +0000 (00:59 +0200)]
b43legacy: fix DMA mapping leakage

This fixes a DMA mapping leakage in the case where we reject a DMA buffer
because of its address.
The patch by Michael Buesch has been ported to b43legacy.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Cc: Christian Casteyde <casteyde.christian@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agomac80211: remove message on receiving unexpected unencrypted frames
Johannes Berg [Sun, 13 Apr 2008 08:12:47 +0000 (10:12 +0200)]
mac80211: remove message on receiving unexpected unencrypted frames

Some people are getting this message a lot, and we have traced it to
broken access points that much too often send completely empty frames
(all bytes zeroed, which they shouldn't do at all.)

Since we cannot do anything about such frames in any case except the
special case where we're debugging an AP, just remove the message.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoUpdate rt2x00 MAINTAINERS entry
Ivo van Doorn [Sat, 12 Apr 2008 17:25:00 +0000 (19:25 +0200)]
Update rt2x00 MAINTAINERS entry

Add the tree entry for rt2x00 to inform people about the
rt2x00.git tree.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoAdd rfkill to MAINTAINERS file
Ivo van Doorn [Sat, 12 Apr 2008 17:23:55 +0000 (19:23 +0200)]
Add rfkill to MAINTAINERS file

I have been acting as the maintainer since the rfkill introduction,
so lets make it official by adding a rfkill entry in the MAINTAINERS file.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agorfkill: Fix device type check when toggling states
Carlos Corbacho [Sat, 12 Apr 2008 15:39:47 +0000 (16:39 +0100)]
rfkill: Fix device type check when toggling states

rfkill_switch_all() is supposed to only switch all the interfaces of a
given type, but does not actually do this; instead, it just switches
everything currently in the same state.

Add the necessary type check in.

(This fixes a bug I've been seeing while developing an rfkill laptop
driver, with both bluetooth and wireless simultaneously changing state
after only pressing either KEY_WLAN or KEY_BLUETOOTH).

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43legacy: Fix usage of struct device used for DMAing
Michael Buesch [Fri, 11 Apr 2008 10:16:36 +0000 (12:16 +0200)]
b43legacy: Fix usage of struct device used for DMAing

This fixes b43legacy for the SSB DMA API change.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agossb: Fix usage of struct device used for DMAing
Michael Buesch [Fri, 11 Apr 2008 09:59:00 +0000 (11:59 +0200)]
ssb: Fix usage of struct device used for DMAing

This fixes DMA on architectures where DMA is nontrivial, like PPC64.
We must use the host-device's (PCI) struct device for any DMA
operation instead of the SSB device. For this we add a new
struct device pointer to the SSB device structure that will always
point to the right device for DMAing.

Without this patch b43 and b44 drivers won't work on complex-DMA
architectures, that for example need dev->archdata for DMA operations.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoMAINTAINERS: move to generic repository for iwlwifi
Reinette Chatre [Thu, 10 Apr 2008 20:16:27 +0000 (13:16 -0700)]
MAINTAINERS: move to generic repository for iwlwifi

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agob43legacy: fix initvals loading on bcm4303
Stefano Brivio [Sun, 6 Apr 2008 15:10:53 +0000 (17:10 +0200)]
b43legacy: fix initvals loading on bcm4303

This allows for the correct initial values to be uploaded to bcm4303
devices. It should be correct, but I can't reliably test this as I suspect
there's something going wrong with an hardware rfkill switch on my laptop.
Please test.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agortl8187: Add missing priv->vif assignments
Herton Ronaldo Krzesinski [Wed, 9 Apr 2008 19:38:31 +0000 (16:38 -0300)]
rtl8187: Add missing priv->vif assignments

This adds missing priv->vif assignments after "mac80211: don't use
interface indices in drivers" change. As rtl8180, rtl8187 also needs
priv->vif to be set, as without this an oops can happen in rtl8187_tx
function (priv->vif is passed to ieee80211_rts_duration).

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
16 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25
Linus Torvalds [Tue, 15 Apr 2008 18:00:05 +0000 (11:00 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25:
  sh: export empty_zero_page
  sh: arch/sh/kernel/traps_32.c needs asm/fpu.h
  sh: fix compressed kernel build
  sh64: add missing #include <asm/fpu.h>'s

16 years agosh: export empty_zero_page
Andrew Morton [Tue, 15 Apr 2008 17:21:47 +0000 (02:21 +0900)]
sh: export empty_zero_page

ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined!

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: arch/sh/kernel/traps_32.c needs asm/fpu.h
Andrew Morton [Tue, 15 Apr 2008 17:03:51 +0000 (02:03 +0900)]
sh: arch/sh/kernel/traps_32.c needs asm/fpu.h

arch/sh/kernel/traps_32.c: In function `do_reserved_inst':
arch/sh/kernel/traps_32.c:667: error: implicit declaration of function `do_fpu_inst'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh: fix compressed kernel build
Manuel Lauss [Tue, 15 Apr 2008 17:01:55 +0000 (02:01 +0900)]
sh: fix compressed kernel build

commit 54a015104136974262afa4b8ddd943ea70dec8a2 broke zImage build on sh arch:

 LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  AS      arch/sh/boot/compressed/head_32.o
In file included from /k/arch/sh/boot/compressed/head_32.S:11:
/k/include/linux/linkage.h:34: error: syntax error in macro parameter list

Fix it for both sh and sh64.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agosh64: add missing #include <asm/fpu.h>'s
Adrian Bunk [Sun, 13 Apr 2008 18:15:38 +0000 (21:15 +0300)]
sh64: add missing #include <asm/fpu.h>'s

This patch fixes some compile errors due to missing save_fpu()
prototypes on sh64 caused by
commit 9bbafce2eec190ef7e44b0eb1095ba17ce6ad3af
(sh: Fix occasional FPU register corruption under preempt).

Signed-off-by: Adrian Bunk <adrian.bunk@movial.fi>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
16 years agoblock: update git url for blktrace
Jens Axboe [Tue, 15 Apr 2008 08:23:35 +0000 (10:23 +0200)]
block: update git url for blktrace

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
16 years agonetconsole: only set CON_PRINTBUFFER if the user specifies a netconsole
Michael Ellerman [Tue, 15 Apr 2008 07:49:04 +0000 (00:49 -0700)]
netconsole: only set CON_PRINTBUFFER if the user specifies a netconsole

Since 0bcc1816188e570bde1d56a208996660f2633ae0 (netconsole: Support
dynamic reconfiguration using configfs), the netconsole is always
registered, regardless of whether the user actually specified a
netconsole configuration on the command line.

However because netconsole has CON_PRINTBUFFER set, when it is
registered it causes the printk buffer to be replayed to all consoles.
When there is no netconsole configured this is a) pointless, and b)
somewhat annoying for the user of the existing console.

So instead we should only set CON_PRINTBUFFER if there is a netconsole
configuration found on the command line. This retains the existing
behaviour if a netconsole is setup by the user, and avoids spamming
other consoles when we're only registering for the dynamic
netconsole case.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years ago[CAN]: Update documentation of struct sockaddr_can
Oliver Hartkopp [Tue, 15 Apr 2008 07:46:38 +0000 (00:46 -0700)]
[CAN]: Update documentation of struct sockaddr_can

The struct sockaddr_can has been simplified in the code review
process.  This patch updates this simplification also in the
associated documentation in can.txt .

Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years agoMAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only
Paul Bolle [Tue, 15 Apr 2008 07:40:48 +0000 (00:40 -0700)]
MAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only

https://www.isdn4linux.de/mailman/listinfo/isdn4linux: "To prevent spamming,
you have to subscribe first. Mails from non-members are silently ignored!"

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
16 years ago[TCP]: Fix never pruned tcp out-of-order queue.
Vitaliy Gusev [Tue, 15 Apr 2008 07:33:38 +0000 (00:33 -0700)]
[TCP]: Fix never pruned tcp out-of-order queue.

tcp_prune_queue() doesn't prune an out-of-order queue at all.
Therefore sk_rmem_schedule() can fail but the out-of-order queue isn't
pruned . This can lead to tcp deadlock state if the next two
conditions are held:

1. There are a sequence hole between last received in
   order segment and segments enqueued to the out-of-order queue.

2. Size of all segments in the out-of-order queue is more than tcp_mem[2].

Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>