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Commit Graph

190979 Commits

Author SHA1 Message Date
Frederic Weisbecker
b2812d031d hw-breakpoints: Change/Enforce some breakpoints policies
The current policies of breakpoints in x86 and SH are the following:

- task bound breakpoints can only break on userspace addresses
- cpu wide breakpoints can only break on kernel addresses

The former rule prevents ptrace breakpoints to be set to trigger on
kernel addresses, which is good. But as a side effect, we can't
breakpoint on kernel addresses for task bound breakpoints.

The latter rule simply makes no sense, there is no reason why we
can't set breakpoints on userspace while performing cpu bound
profiles.

We want the following new policies:

- task bound breakpoint can set userspace address breakpoints, with
no particular privilege required.
- task bound breakpoints can set kernelspace address breakpoints but
must be privileged to do that.
- cpu bound breakpoints can do what they want as they are privileged
already.

To implement these new policies, this patch checks if we are dealing
with a kernel address breakpoint, if so and if the exclude_kernel
parameter is set, we tell the user that the breakpoint is invalid,
which makes a good generic ptrace protection.
If we don't have exclude_kernel, ensure the user has the right
privileges as kernel breakpoints are quite sensitive (risk of
trap recursion attacks and global performance impacts).

[ Paul Mundt: keep addr space check for sh signal delivery and fix
  double function declaration]

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Cc: K. Prasad <prasad@linux.vnet.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-01 04:32:10 +02:00
Frederic Weisbecker
87e9b20246 hw-breakpoints: Check disabled breakpoints again
We stopped checking disabled breakpoints because we weren't
allowing breakpoints on NULL addresses. And gdb tends to set
NULL addresses on inactive breakpoints.

But refusing NULL addresses was actually a regression that has
been fixed now. There is no reason anymore to not validate
inactive breakpoint settings.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Cc: K. Prasad <prasad@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
2010-05-01 04:32:09 +02:00
Frederic Weisbecker
73266fc1df hw-breakpoints: Tag ptrace breakpoint as exclude_kernel
Tag ptrace breakpoints with the exclude_kernel attribute set. This
will make it easier to set generic policies on breakpoints, when it
comes to ensure nobody unpriviliged try to breakpoint on the kernel.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Cc: K. Prasad <prasad@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
2010-05-01 04:32:07 +02:00
Frederic Weisbecker
d00a47cce5 perf: Fix warning while reading ring buffer headers
commit e9e94e3bd8
"perf trace: Ignore "overwrite" field if present in
/events/header_page" makes perf trace launching spurious warnings
about unexpected tokens read:

	Warning: Error: expected type 6 but read 4

This change tries to handle the overcommit field in the header_page
file whenever this field is present or not.

The problem is that if this field is not present, we try to find it
and give up in the middle of the line when we realize we are actually
dealing with another field, which is the "data" one. And this failure
abandons the file pointer in the middle of the "data" description
line:

	field: u64 timestamp;	offset:0;	size:8;	signed:0;
	field: local_t commit;	offset:8;	size:8;	signed:1;
	field: char data;	offset:16;	size:4080;	signed:1;
                      ^^^
                      Here

What happens next is that we want to read this line to parse the data
field, but we fail because the pointer is not in the beginning of the
line.

We could probably fix that by rewinding the pointer. But in fact we
don't care much about these headers that only concern the ftrace
ring-buffer. We don't use them from perf.

Just skip this part of perf.data, but don't remove it from recording
to stay compatible with olders perf.data

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
2010-05-01 04:31:48 +02:00
Elina Pasheva
2fdc45c7c4 net/usb: remove default in Kconfig for sierra_net driver
The following patch removes the default from the Kconfig entry for sierra_net
driver as recommended.

Signed-off-by: Elina Pasheva <epasheva@sierrawireless.com>
Signed-off-by: Rory Filer <rfiler@sierrawireless.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-30 19:05:28 -07:00
Eric Dumazet
6c3b9d3458 r8169: Fix rtl8169_rx_interrupt()
In case a reset is performed, rtl8169_rx_interrupt() is called from
process context instead of softirq context. Special care must be taken
to call appropriate network core services (netif_rx() instead of
netif_receive_skb()). VLAN handling also corrected.

Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Diagnosed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-30 16:20:39 -07:00
Prarit Bhargava
bbd391a15d x86: Fix NULL pointer access in irq_force_complete_move() for Xen guests
Upstream PV guests fail to boot because of a NULL pointer in
irq_force_complete_move().  It is possible that xen guests have
irq_desc->chip_data = NULL.

Test for NULL chip_data pointer before attempting to complete an irq move.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
LKML-Reference: <20100427152434.16193.49104.sendpatchset@prarit.bos.redhat.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@kernel.org> [2.6.33]
2010-04-30 14:31:38 -07:00
Li Dongyang
6b933c8e6f ocfs2: Avoid direct write if we fall back to buffered I/O
when we fall back to buffered write from direct write, we call
__generic_file_aio_write() but that will end up doing direct write
even we are only prepared to do buffered write because the file
has the O_DIRECT flag set. This is a fix for
https://bugzilla.novell.com/show_bug.cgi?id=591039
revised with Joel's comments.

Signed-off-by: Li Dongyang <lidongyang@novell.com>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-04-30 13:45:13 -07:00
Joel Becker
f9221fd803 Merge branch 'skip_delete_inode' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2-mark into ocfs2-fixes 2010-04-30 13:37:29 -07:00
Linus Torvalds
54413b825c Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (27 commits)
  MIPS: Loongson 2F: Fix of problems introduced by -mfix-loongson2f-jump
  MIPS: Loongson-2F: Use CONFIG_CPU_JUMP_WORKAROUNDS to control workarounds.
  MIPS: Loongson 2F: Enable fixups of the latest binutils
  MIPS: Loongson: Add CPU_LOONGSON2F_WORKAROUNDS
  MIPS: Kconfig: Make Broadcom SoC support naming consistent
  MIPS: BCM63xx: Update defconfig
  MIPS: oprofile: Fix breakage when CONFIG_OPROFILE=m
  STAGING: octeon-ethernet: Use proper phy addresses for Movidis hardware.
  NET: mdio-octeon: Enable the hardware before using it.
  I2C: Fix section mismatch errors in i2c-octeon.c
  MIPS: Loongson: Fix LOONGSON_ADDRWIN_CFG macro.
  MIPS: Loongson: Fix phys_mem_access_prot() check
  MIPS: Loongson: Fix find_vga_mem_init()
  MIPS: Loongson: Fix typo in gdium mach type string.
  MIPS: Use CKSEG1ADDR for uncached handler
  MIPS: Check for accesses beyond the end of the PGD.
  MIPS: Use uasm_i_ds{r,l}l_safe() instead of uasm_i_ds{r,l}l() in tlbex.c
  MIPS: Add uasm_i_dsrl_safe() and uasm_i_dsll_safe() to uasm.
  MIPS: die() does not call die notifier chain
  MIPS: Swarm, Littlesur: Enable PATA platform driver.
  ...
2010-04-30 13:04:14 -07:00
David S. Miller
6c9ae016a8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-04-30 12:54:15 -07:00
Wu Zhangjin
64fc74f5f6 MIPS: Loongson 2F: Fix of problems introduced by -mfix-loongson2f-jump
The -mfix-loongson2f-jump option provided by latest CVS binutils have fixed
the out-of-order issue of Loongson-2F described in chapter 15 of the
Loongson2F User Manual [1, 2], but introduced some problems.

The option changes all of the jump target to "addr & 0xcfffffff" through the
at($1) register, but for the reboot address of Loongson 2F 0xbfc00000 this is
wrong.  Avoids the problem via telling the assembler to not use the $at
register.

[1] Loongson2F User Manual (Chinese Version)
    http://www.loongson.cn/uploadfile/file/200808211
[2] English Version of Chapter 15:
    http://groups.google.com.hk/group/loongson-dev/msg/e0d2e220958f10a6?dmode=source

Reported-and-tested-by: Liu Shiwei <liushiwei@gmail.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1109/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:58 +01:00
Wu Zhangjin
b197b62866 MIPS: Loongson-2F: Use CONFIG_CPU_JUMP_WORKAROUNDS to control workarounds.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1106/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:58 +01:00
Wu Zhangjin
8bbda428e9 MIPS: Loongson 2F: Enable fixups of the latest binutils
With the  "Fixups of Loongson2F" patch [1] having been applied to binutils
for binutils 2.20.1 we now can use it's time to enable the options provided
by the patch to compile the kernel.

Without these fixups, the system may hang if the erratum is triggered.

For more information on these fixups please refer to the following
references.

[1] "Fixups of Loongson2F" patch for binutils(actually for gas)
    http://sourceware.org/ml/binutils/2009-11/msg00387.html
[2] Chapter 15 of "Loongson2F User Manual"(Chinese Version)
    http://www.loongson.cn/uploadfile/file/200808211
[3] Chapter 15 of the English version Loongson 2F User Manual
    http://groups.google.com.hk/group/loongson-dev/msg/e0d2e220958f10a6?dmode=source

Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: Zhang Le <r0bertz@gentoo.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1106/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:56 +01:00
Wu Zhangjin
622844bf0b MIPS: Loongson: Add CPU_LOONGSON2F_WORKAROUNDS
As documented in the  Loongson 2F User Manual [2, 3], the old Loongson2F
series (2F01 / 2F02) have the NOP & JUMP issues which requires workarounds
in the kernel and binutils.  This issue has been rectified in Loongson 2F
series 2F03 so no workarounds needed.

Now that the workarounds [1] adding the the -mfix-loongson2f-nop and
-mfix-loongson2f-jump options have been comitted to the binutils the CVS
repository), we can add the workarounds in the kernel.

The workarounds have no significant side effect on the system but may
decrease performance so we control them through a a new
CPU_LOONGSON2F_WORKAROUNDS config option allowing the users to only enable
it as necessary.

[1] "Fixups of Loongson2F" patch for binutils(actually for gas)
    http://sourceware.org/ml/binutils/2009-11/msg00387.html
[2] Chapter 15 of "Loongson2F User Manual"(Chinese Version)
    http://www.loongson.cn/uploadfile/file/200808211
[3] English Version of the above chapter 15
    http://groups.google.com.hk/group/loongson-dev/msg/e0d2e220958f10a6?dmode=source

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1105/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:56 +01:00
Florian Fainelli
c619366e36 MIPS: Kconfig: Make Broadcom SoC support naming consistent
Signed-off-by: Florian Fainelli <ffainelli@freebox.fr>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1082/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:55 +01:00
Florian Fainelli
a9af5a01ca MIPS: BCM63xx: Update defconfig
the defconfig was out-of-sync since 2.6.30-rc6, update it with the new
symbols and enable BCM6338, 6345, wireless, b43 driver and LEDs support.

Signed-off-by:  Fainelli <ffainelli@freebox.fr>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1081/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:55 +01:00
Wu Zhangjin
922010ff7b MIPS: oprofile: Fix breakage when CONFIG_OPROFILE=m
When the oprofile is compiled as a module do_IRQ() is not called in
arch/mips/loongson/lemote-2f/irq.c due to a wrong #ifdef there.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1143/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:54 +01:00
David Daney
9dd1474677 STAGING: octeon-ethernet: Use proper phy addresses for Movidis hardware.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: netdev@vger.kernel.org
To: gregkh@suse.de
Patchwork: http://patchwork.linux-mips.org/patch/1091/
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:53 +01:00
David Daney
6c17812d62 NET: mdio-octeon: Enable the hardware before using it.
In some cases the mdio bus is not enabled at the time of probing.
This prevents anything from working, so we will enable it before
trying to use it, and disable it when the driver is removed.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
To: netdev@vger.kernel.org
To: gregkh@suse.de
Patchwork: http://patchwork.linux-mips.org/patch/1090/
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:52 +01:00
David Daney
20f1216060 I2C: Fix section mismatch errors in i2c-octeon.c
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-i2c@vger.kernel.org
To: ben-linux@fluff.org
To: khali@linux-fr.org
Cc: linux-mips@linux-mips.org
Cc: rade.bozic.ext@nsn.com
Patchwork: http://patchwork.linux-mips.org/patch/1037/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:52 +01:00
Arnaud Patard
94c26c9a66 MIPS: Loongson: Fix LOONGSON_ADDRWIN_CFG macro.
There's a typo in the LOONGSON_ADDRWIN_CFG macro. The cpu window mmap
register address should contain the destination parameters not the
source one.  This has not been noticed because the code is only using
source = destination.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1162/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:51 +01:00
Arnaud Patard
514b6d0c06 MIPS: Loongson: Fix phys_mem_access_prot() check
The check used to determine if uncached accelerated should be used or not
is wrong. The parenthesis are misplaced and making the test fail.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1161/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:51 +01:00
Richard LIU
ff40ad72ad MIPS: Loongson: Fix find_vga_mem_init()
This allows to use all display device for instance DISPLAY_OTHER like SM501.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1160/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:50 +01:00
Arnaud Patard
1c6d541c23 MIPS: Loongson: Fix typo in gdium mach type string.
It's not "gidum" but "gdium".

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1159/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:49 +01:00
Sebastian Andrzej Siewior
4f81b01a30 MIPS: Use CKSEG1ADDR for uncached handler
"MIPS: Calculate proper ebase value for 64-bit kernels"
9af43ea080dd5d6c7b34f38261780e5dd43537bc (lmo) rsp.
f6be75d03c (kernel.org) broke some 64-bit
MIPS systems.

Before this we were using XKPHYS/cached as ebase and computed the uncached
xphsys/unchached address for that area. After that commit ebase became a
32-bit compat address and convert does not work anymore.  We now should use
CKSEG1 for this. CKSEG1ADDR does just that in 32-bit and 64-bit.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
To: Ralf Baechle <ralf@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1149/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:48 +01:00
David Daney
1ec56329ff MIPS: Check for accesses beyond the end of the PGD.
For some combinations of PAGE_SIZE and vmbits, it is possible to have
userspace access that are beyond what is covered by the PGD, but within
vmbits.  Such an access would cause the TLB refill handler to load garbage
values for PMD and PTE potentially giving userspace access to parts of the
physical address space to which it is not entitled.

In the TLB refill hot path, we add a single dsrl instruction so we can
check if any bits outside of the range covered by the PGD are set.  In
the vmalloc side we then separate the bad case from the normal vmalloc
case and call tlb_do_page_fault_0 if warranted.  This slows us down a
bit, but has the benefit of yielding deterministic behavior.

[Ralf: Fixed build error for 32-bit kernels.]
[Ralf: Folded lmo commit c8c0e22b2aa3982852b44279638ef37f9aa31b7d into this
 commit.]

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1152/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

---
2010-04-30 20:52:48 +01:00
David Daney
3be6022c27 MIPS: Use uasm_i_ds{r,l}l_safe() instead of uasm_i_ds{r,l}l() in tlbex.c
This makes the code somewhat cleaner while reducing the risk of shift
amount overflows when various page table related options are changed.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1154/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:47 +01:00
David Daney
26b9e547e9 MIPS: Add uasm_i_dsrl_safe() and uasm_i_dsll_safe() to uasm.
This allows us to clean up the code by not having to explicitly code
checks for shift amounts greater than 32.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1153/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:45 +01:00
Yury Polyanskiy
ce384d83d0 MIPS: die() does not call die notifier chain
The MIPS implementation of die() forgets to call notify_die() and thus notifiers
registered via register_die_notifier() are not called.  This results in kgdb not
being activated on exceptions.

The only subtlety is that notify_die declares its regs argument w/o const, so
the const had to be removed from mips die() as well.

[Ralf: Fixed build error for SGI IP22 and IP28 platforms.]

Signed-off-by: Yury Polyanskiy <ypolyans@princeton.edu>
Cc: linux-mips@linux-mips.org
Patchworks: http://patchwork.linux-mips.org/patch/1142/
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

---
2010-04-30 20:52:45 +01:00
Sebastian Andrzej Siewior
fcf3ca4c3d MIPS: Swarm, Littlesur: Enable PATA platform driver.
According to include/asm/sibyte/swarm.h both systems provide a
platform device for the ide controler. Until now the IDE subsystem was
used which is deprecated by now. The same structure can be used with the
PATA driver.

Signed-off-by: Sebastian Andrzej Siewior <sebatian@breakpoint.cc>
Cc: tbm@cyrius.com
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1127/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:44 +01:00
Manuel Lauss
0000a53901 MIPS: DB1200: PCMCIA card detection must not be auto-enabled.
Same issues as SD card detection:  One of both is always triggering and the
handlers take care to shut it up and enable the other.  To avoid messages
about "unbalanced interrupt enable/disable" they must not be automatically
enabled when initally requested.

This was not an issue with the db1200_defconfig due to fortunate timings;
on a build without network chip support the warnings appear.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1133/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:43 +01:00
Sebastian Andrzej Siewior
0dfeecacd8 MIPS: SB1250: Include correct header and fix a warning
| arch/mips/pci/pci-sb1250.c: In function sb1250_pcibios_init:
| arch/mips/pci/pci-sb1250.c:257: warning: assignment makes integer from pointer without a cast
| arch/mips/pci/pci-sb1250.c:285: error: MAX_NR_CONSOLES undeclared (first use in this function)
| arch/mips/pci/pci-sb1250.c:285: error: (Each undeclared identifier is reported only once
| arch/mips/pci/pci-sb1250.c:285: error: for each function it appears in.)

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1136/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:43 +01:00
Sebastian Andrzej Siewior
b20947aaa0 MIPS: Fixup screen_info struct initializations
|arch/mips/sibyte/swarm/setup.c:153:
| warning: large integer implicitly truncated to unsigned type

The field was changed in d9b26352 aka ("x86, setup: Store the boot
cursor state").  This patch changes the values back they way they were
before this extra field got introduced.

While here, the other two boards are also converted to C99 initializer.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1137/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:42 +01:00
Ralf Baechle
9eed4124c0 MIPS: cmpxchg.h: Fix excessive indentation.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:41 +01:00
David Daney
c8f3cc0b65 MIPS: Don't vmap things at address zero.
In the 64-bit kernel we use swapper_pg_dir for three different things.

1) xuseg mappings for kernel threads.

2) vmap mappings for all kernel-space accesses in xkseg.

3) vmap mappings for kernel modules in ksseg (kseg2).

Due to how the TLB refill handlers work, any mapping established in
xkseg or ksseg will also establish a xuseg mapping that should never
be used by the kernel.

In order to be able to use exceptions to trap NULL pointer
dereferences, we need to ensure that nothing is mapped at address
zero.  Since vmap mappings in xkseg are reflected in xuseg, this means
we need to ensure that there are no vmap mappings established at the
start of xkseg.  So we move back VMALLOC_START to avoid establishing
vmap mappings at the start of xkseg.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/1129/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:41 +01:00
Geert Uytterhoeven
b0b4ce38a5 MIPS: TXx9: Add missing MODULE_ALIAS definitions for TXx9 platform devices
This enables autoloading of the TXx9 sound driver on RBTX4927.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Linux MIPS Mailing List <linux-mips@linux-mips.org>
Patchwork: http://patchwork.linux-mips.org/patch/1101/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:40 +01:00
Ralf Baechle
7270be03bc MIPS: PNX8550: Fix build error, broken by:
commit 5a0e3ad6af
    Author: Tejun Heo <tj@kernel.org>
    Date:   Wed Mar 24 17:04:11 2010 +0900

        include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

Since a while the few headers included don't drag in <linux/kernel.h>
anymore, thus no more prototype of printk() resulting in:

  CC      arch/mips/nxp/pnx8550/common/reset.o
/home/ralf/src/linux/upstream-linus/arch/mips/nxp/pnx8550/common/reset.c: In function 'pnx8550_machine_restart':
/home/ralf/src/linux/upstream-linus/arch/mips/nxp/pnx8550/common/reset.c:31: error: implicit declaration of function 'printk'
/home/ralf/src/linux/upstream-linus/arch/mips/nxp/pnx8550/common/reset.c:33: error: 'NULL' undeclared (first use in this function)
/home/ralf/src/linux/upstream-linus/arch/mips/nxp/pnx8550/common/reset.c:33: error: (Each undeclared identifier is reported only once
/home/ralf/src/linux/upstream-linus/arch/mips/nxp/pnx8550/common/reset.c:33: error: for each function it appears in.)
make[3]: *** [arch/mips/nxp/pnx8550/common/reset.o] Error 1

Fixed by including <linux/kernel.h>

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-04-30 20:52:39 +01:00
Anton Blanchard
0c75ba2254 e1000e: Fix oops caused by ASPM patch.
Commit 6f461f6c7c
("e1000e: enable/disable ASPM L0s and L1 and ERT according to hardware errata")
oopses on one of my ppc64 boxes with a NULL pointer (0x4a):

Unable to handle kernel paging request for data at address 0x0000004a
Faulting instruction address: 0xc0000000004d2f1c
cpu 0xe: Vector: 300 (Data Access) at [c000000bec1833a0]
    pc: c0000000004d2f1c: .e1000e_disable_aspm+0xe0/0x150
    lr: c0000000004d2f0c: .e1000e_disable_aspm+0xd0/0x150
   dar: 4a

[c000000bec1836d0] c00000000069b9d8 .e1000_probe+0x84/0xe8c
[c000000bec1837b0] c000000000386d90 .local_pci_probe+0x4c/0x68
[c000000bec183840] c0000000003872ac .pci_device_probe+0xfc/0x148
[c000000bec183900] c000000000409e8c .driver_probe_device+0xe4/0x1d0
[c000000bec1839a0] c00000000040a024 .__driver_attach+0xac/0xf4
[c000000bec183a40] c000000000409124 .bus_for_each_dev+0x9c/0x10c
[c000000bec183b00] c000000000409c1c .driver_attach+0x40/0x60
[c000000bec183b90] c0000000004085dc .bus_add_driver+0x150/0x328
[c000000bec183c40] c00000000040a58c .driver_register+0x100/0x1c4
[c000000bec183cf0] c00000000038764c .__pci_register_driver+0x78/0x128

Seems like pdev->bus->self == NULL. I haven't touched pci in a long time
so I'm trying to remember what this means (no pcie bridge perhaps?)

The patch below fixes the oops for me.

Signed-off-by: Anton Blanchard <anton@samba.org>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-30 12:51:36 -07:00
Frederic Weisbecker
e5a5f1f015 perf: Remove leftover useless options to record trace events from scripts
-f, -c 1, -R are now useless for trace events recording, moreover
-M is useless and event hurts.

Remove them from the documentation examples and from record scripts.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
2010-04-30 19:55:00 +02:00
Linus Torvalds
be1066bbcd Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
  Staging: vme: Re-introduce necessary brackets
  Staging: iio: fix up the iio_get_new_idr_val comment
  Staging: add Add Sitecom WL-349 to rtl8192su
  Staging: rt2860: add Belkin F5D8055 Wireless-N USB Dongle device id
  staging: rtl8192su: add Support for Belkin F5D8053 v6
  Staging: dt3155: fix 50Hz configuration
  staging: usbip: Fix deadlock
  Staging: rtl8192su: add USB ID for 0bda:8171
  Staging: hv: name network device ethX rather than sethX
  Staging: hv: Fix up memory leak on HvCleanup
  Staging: hv: Fix a bug affecting IPv6
  staging: iio: ring_sw: Fix incorrect test on successful read of last value, causes infinite loop
  staging: iio: Function iio_get_new_idr_val() return negative value if fails.
  Staging: iio: adc: fix dangling pointers
  Staging: iio: light: fix dangling pointers
  Staging: iio: test for failed allocation
  staging: iio: lis3l02dq - incorrect ws used in container of call.
2010-04-30 10:16:55 -07:00
Linus Torvalds
87156d692a Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
  serial: drivers/serial/pmac_zilog.c: add missing unlock
  serial: 8250_pnp - add Fujitsu Wacom device
  tty: Fix regressions in the char driver conversion
2010-04-30 10:16:42 -07:00
Linus Torvalds
e4049eb852 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: (29 commits)
  USB: sl811-hcd: Fix device disconnect
  USB: ohci-at91: fix power management hanging
  USB: rename usb_buffer_alloc() and usb_buffer_free()
  USB: ti_usb: fix printk format warning
  USB: gadget: s3c-hsotg: Add missing unlock
  USB: fix build on OMAPs if CONFIG_PM_RUNTIME is not set
  USB: oxu210hp: release spinlock on error path
  USB: serial: option: add cinterion device id
  USB: serial: option: ZTEAC8710 Support with Device ID 0xffff
  USB: serial: pl2303: Hybrid reader Uniform HCR331
  USB: option: add ID for ZTE MF 330
  USB: xhci: properly set endpoint context fields for periodic eps.
  USB: xhci: properly set the "Mult" field of the endpoint context.
  USB: OHCI: don't look at the root hub to get the number of ports
  USB: don't choose configs with no interfaces
  USB: cdc-acm: add another device quirk
  USB: fix testing the wrong variable in fs_create_by_name()
  usb: Fix tusb6010 for DMA API
  musb_core: fix musb_init_controller() error cleanup path
  MUSB: fix DaVinci glue layer dependency
  ...
2010-04-30 10:16:11 -07:00
Borislav Petkov
35d824b28f edac, mce: Fix wrong mask and macro usage
Correct two mishaps which prevented reporting error type (CECC vs UECC)
and extended error description.

Cc: <stable@kernel.org> # 32.x,  33.x
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-30 10:15:39 -07:00
Ralf Baechle
12b1b32168 Inotify: Fix build failure in inotify user support
CONFIG_INOTIFY_USER defined but CONFIG_ANON_INODES undefined will result
in the following build failure:

    LD      vmlinux
  fs/built-in.o: In function 'sys_inotify_init1':
  (.text.sys_inotify_init1+0x22c): undefined reference to 'anon_inode_getfd'
  fs/built-in.o: In function `sys_inotify_init1':
  (.text.sys_inotify_init1+0x22c): relocation truncated to fit: R_MIPS_26 against 'anon_inode_getfd'
  make[2]: *** [vmlinux] Error 1
  make[1]: *** [sub-make] Error 2
  make: *** [all] Error 2

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-30 10:14:56 -07:00
Linus Torvalds
8f2adb7cab Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6
* 'merge' of git://git.secretlab.ca/git/linux-2.6:
  spi: spidev_test gives error upon 1-byte transfer
  omap2_mcspi: small fixes of output data format
  omap2_mcspi: Flush posted writes
  spi: spi_device memory should be released instead of device.
  spi: release device claimed by bus_find_device_by_name
  of: check for IS_ERR()
  serial/mpc52xx_uart: Drop outdated comments
  gpio: potential null dereference
2010-04-30 09:57:55 -07:00
Martyn Welch
4839737b3b Staging: vme: Re-introduce necessary brackets
Somehow I managed to remove a set of rather necessary brackets in commit
29848ac9f3. Put them back.

Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:30:11 -07:00
Andrew Morton
f3cdc28520 Staging: iio: fix up the iio_get_new_idr_val comment
improve the comment a bit

Cc: Greg KH <greg@kroah.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Sonic Zhang <sonic.adi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:30:11 -07:00
Rodrigo Linfati
64a5a09218 Staging: add Add Sitecom WL-349 to rtl8192su
Add usb id of Sitecom WL-349 to rtl8192su

Signed-off-by: Rodrigo Linfati <rodrigo@linfati.cl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:30:11 -07:00
Chris Largret
12840c63b0 Staging: rt2860: add Belkin F5D8055 Wireless-N USB Dongle device id
Add Belkin F5D8055 Wireless-N USB support to the rt2870
staging driver.

Signed-off-by: Chris Largret <largret@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-04-30 09:30:11 -07:00