Commit Graph

348939 Commits

Author SHA1 Message Date
Al Viro
574c4866e3 consolidate kernel-side struct sigaction declarations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:22 -05:00
Al Viro
92a3ce4a1e consolidate declarations of k_sigaction
Only alpha and sparc are unusual - they have ka_restorer in it.
And nobody needs that exposed to userland.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:22 -05:00
Al Viro
6883da8c6c switch compat_sys_sched_rr_get_interval to COMPAT_SYSCALL_DEFINE
... and make it unconditional - we want the sucker on all biarch
platforms, really.  All kinds of wrappers and private implementations
can go now; fortunately, they don't cause name conflicts, so we can
do that one first without any bisect hazards.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:22 -05:00
Al Viro
9aae8fc05d switch rt_tgsigqueueinfo to COMPAT_SYSCALL_DEFINE
C ABI violations on sparc, ppc and mips

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:21 -05:00
Al Viro
5cf2210022 switch compat_sys_sigprocmask to COMPAT_SYSCALL_DEFINE
In principle, C ABI violation on ppc and mips...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:21 -05:00
Al Viro
28d27f2d25 switch compat_sys_rt_sigtimedwait to COMPAT_SYSCALL_DEFINE
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:20 -05:00
Al Viro
0a0e8cdf73 old sigsuspend variants in kernel/signal.c
conditional on OLD_SIGSUSPEND/OLD_SIGSUSPEND3, depending on which
variety of that fossil is needed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:20 -05:00
Al Viro
75907d4d7b generic compat_sys_rt_sigqueueinfo()
conditional on GENERIC_COMPAT_RT_SIGQUEUEINFO; by the end of that series
it will become the same thing as COMPAT and conditional will die out.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:19 -05:00
Al Viro
fe9c1db2cf generic compat_sys_rt_sigpending()
conditional on GENERIC_COMPAT_RT_SIGPENDING; by the end of that series
it will become the same thing as COMPAT and conditional will die out.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:19 -05:00
Al Viro
322a56cb1f generic compat_sys_rt_sigprocmask()
conditional on GENERIC_COMPAT_RT_SIGPROCMASK; by the end of that series
it will become the same thing as COMPAT and conditional will die out.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:19 -05:00
Al Viro
ad4b65a434 consolidate rt_sigsuspend()
* pull compat version alongside with the native one
* make little-endian compat variant just call the native
* don't bother with separate conditional for compat (both native and
compat are going to become unconditional very soon).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:18 -05:00
Al Viro
eaca6eae3e sanitize rt_sigaction() situation a bit
Switch from __ARCH_WANT_SYS_RT_SIGACTION to opposite
(!CONFIG_ODD_RT_SIGACTION); the only two architectures that
need it are alpha and sparc.  The reason for use of CONFIG_...
instead of __ARCH_... is that it's needed only kernel-side
and doing it that way avoids a mess with include order on many
architectures.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:18 -05:00
Al Viro
377840744b switch compat_sys_[gs]etitimer(2) to COMPAT_SYSCALL_DEFINE
again, strictly speaking we are in nasal daemon territory on ppc
and mips - we need to sign-extend int arguments.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-02-03 15:09:17 -05:00
Linus Torvalds
3a142ed962 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
Pull misc syscall fixes from Al Viro:

 - compat syscall fixes (discussed back in December)

 - a couple of "make life easier for sigaltstack stuff by reducing
   inter-tree dependencies"

 - fix up compiler/asmlinkage calling convention disagreement of
   sys_clone()

 - misc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal:
  sys_clone() needs asmlinkage_protect
  make sure that /linuxrc has std{in,out,err}
  x32: fix sigtimedwait
  x32: fix waitid()
  switch compat_sys_wait4() and compat_sys_waitid() to COMPAT_SYSCALL_DEFINE
  switch compat_sys_sigaltstack() to COMPAT_SYSCALL_DEFINE
  CONFIG_GENERIC_SIGALTSTACK build breakage with asm-generic/syscalls.h
  Ensure that kernel_init_freeable() is not inlined into non __init code
2013-01-20 13:58:48 -08:00
Oleg Nesterov
edea0d03ee ia64: kill thread_matches(), unexport ptrace_check_attach()
The ia64 function "thread_matches()" has no users since commit
e868a55c2a ("[IA64] remove find_thread_for_addr()").  Remove it.

This allows us to make ptrace_check_attach() static to kernel/ptrace.c,
which is good since we'll need to change the semantics of it and fix up
all the callers.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-20 12:26:05 -08:00
Al Viro
b1e0318b8c sys_clone() needs asmlinkage_protect
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-19 22:13:34 -05:00
Al Viro
43b1682024 make sure that /linuxrc has std{in,out,err}
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-01-19 13:29:54 -05:00
Linus Torvalds
5da1f88b8b USB fixes for 3.8-rc4
Here are 3 USB patches for 3.8-rc4.  Two of them are new device id
 patches, and the third fixes a reported oops in the io_ti USB serial
 driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 =iOum
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Merge tag 'usb-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are 3 USB patches for 3.8-rc4.  Two of them are new device id
  patches, and the third fixes a reported oops in the io_ti USB serial
  driver"

* tag 'usb-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: io_ti: Fix NULL dereference in chase_port()
  USB: option: add TP-LINK HSUPA Modem MA180
  USB: option: blacklist network interface on ONDA MT8205 4G LTE
2013-01-18 14:06:29 -08:00
Linus Torvalds
793388a797 TTY/serial fixes for 3.8-rc4
Here are a few tty/serial driver fixes for 3.8-rc4 that resolve a number
 of problems that people have been having, including the ptys ioctl issue
 that is a regression fix.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 jCAAn04Xq7APwwWggS3fWGHpWLFwC0HT
 =KT9T
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Merge tag 'tty-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg Kroah-Hartman:
 "Here are a few tty/serial driver fixes for 3.8-rc4 that resolve a
  number of problems that people have been having, including the ptys
  ioctl issue that is a regression fix"

* tag 'tty-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  8250/16?50: Add support for Broadcom TruManage redirected serial port
  pty: return EINVAL for TIOCGPTN for BSD ptys
  serial:ifx6x60:Keep word size accordance with SPI controller
  tty: 8250_dw: Fix inverted arguments to serial_out in IRQ handler
  serial: samsung: remove redundant setting of line config during port reset
  serial:ifx6x60:Delete SPI timer when shut down port
  tty/8250: The correct device id for this card is 0x0022
  tty/8250: pbn_b0_8_1152000_200 is supposed to be an 8 port definition
  tty: serial: vt8500: fix return value check in vt8500_serial_probe()
  serial: mxs-auart: Index is unsigned
  mxs: uart: fix setting RTS from software
2013-01-18 14:05:59 -08:00
Linus Torvalds
abad21a8ba Staging bugfixes for 3.8-rc4
Here are some bugfixes for the drivers/staging tree for 3.8-rc4.
 
 Nothing major, just a number of small fixes for problems that people
 have reported, including finally tracking down the root of the 64/32 bit
 problem with the vt6656 that has been driving people crazy for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 =g3G7
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Merge tag 'staging-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver bugfixes from Greg Kroah-Hartman:
 "Here are some bugfixes for the drivers/staging tree for 3.8-rc4.

  Nothing major, just a number of small fixes for problems that people
  have reported, including finally tracking down the root of the 64/32
  bit problem with the vt6656 that has been driving people crazy for a
  while"

* tag 'staging-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/sb105x: PARPORT config is not good enough must use PARPORT_PC
  staging: wlan-ng: Fix clamping of returned SSID length
  staging: vt6656: Fix inconsistent structure packing
  staging:iio:adis16080: Perform sign extension
  iio: mxs-lradc: indexes are unsigned
2013-01-18 14:05:25 -08:00
Linus Torvalds
0d060d28d8 Char/Misc driver fixes for 3.8-rc4
Here are two hyperv patches for 3.8-rc4 that fix some reported problems
 hv_balloon driver.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 =N848
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Merge tag 'char-misc-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg Kroah-Hartman:
 "Here are two hyperv patches for 3.8-rc4 that fix some reported
  problems hv_balloon driver"

* tag 'char-misc-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Drivers: hv: balloon: Fix a memory leak
  Drivers: hv: balloon: Fix a bug in the definition of struct dm_info_msg
2013-01-18 14:04:50 -08:00
Linus Torvalds
5c69bed266 Fixes:
- CVE-2013-0190/XSA-40 (or stack corruption for 32-bit PV kernels)
  - Fix racy vma access spotted by Al Viro
  - Fix mmap batch ioctl potentially resulting in large O(n) page allcations.
  - Fix vcpu online/offline BUG:scheduling while atomic..
  - Fix unbound buffer scanning for more than 32 vCPUs.
  - Fix grant table being incorrectly initialized
  - Fix incorrect check in pciback
  - Allow privcmd in backend domains.
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Merge tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 - CVE-2013-0190/XSA-40 (or stack corruption for 32-bit PV kernels)
 - Fix racy vma access spotted by Al Viro
 - Fix mmap batch ioctl potentially resulting in large O(n) page allcations.
 - Fix vcpu online/offline BUG:scheduling while atomic..
 - Fix unbound buffer scanning for more than 32 vCPUs.
 - Fix grant table being incorrectly initialized
 - Fix incorrect check in pciback
 - Allow privcmd in backend domains.

Fix up whitespace conflict due to ugly merge resolution in Xen tree in
arch/arm/xen/enlighten.c

* tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.
  Revert "xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic."
  xen/gntdev: remove erronous use of copy_to_user
  xen/gntdev: correctly unmap unlinked maps in mmu notifier
  xen/gntdev: fix unsafe vma access
  xen/privcmd: Fix mmap batch ioctl.
  Xen: properly bound buffer access when parsing cpu/*/availability
  xen/grant-table: correctly initialize grant table version 1
  x86/xen : Fix the wrong check in pciback
  xen/privcmd: Relax access control in privcmd_ioctl_mmap
2013-01-18 12:02:52 -08:00
Linus Torvalds
b814469ad5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu arch fixes from Greg Ungerer:
 "This contains a couple of fixes, both affecting compilation of non-mmu
  m68k targets."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: fix conditional use of init_pointer_table
  m68knommu: add KMAP definitions for non-MMU definitions
2013-01-18 11:58:10 -08:00
Kirill A. Shutemov
2f91ec8cc4 asm-generic, mm: pgtable: convert my_zero_pfn() to macros to fix build
Commit 816422ad76 ("asm-generic, mm: pgtable: consolidate zero page
helpers") broke the compile on MIPS if SPARSEMEM is enabled.  We get
this:

  In file included from arch/mips/include/asm/pgtable.h:552,
                   from include/linux/mm.h:44,
                   from arch/mips/kernel/asm-offsets.c:14:
  include/asm-generic/pgtable.h: In function 'my_zero_pfn':
  include/asm-generic/pgtable.h:466: error: implicit declaration of function 'page_to_section'
  In file included from arch/mips/kernel/asm-offsets.c:14:
  include/linux/mm.h: At top level:
  include/linux/mm.h:738: error: conflicting types for 'page_to_section'
  include/asm-generic/pgtable.h:466: note: previous implicit declaration of 'page_to_section' was here

Due header files inter-dependencies, the only way I see to fix it is
convert my_zero_pfn() for __HAVE_COLOR_ZERO_PAGE to macros.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: David Daney <david.daney@cavium.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-18 11:23:26 -08:00
Linus Torvalds
7d1f9aeff1 Linux 3.8-rc4 2013-01-17 19:25:45 -08:00
Wolfgang Frisch
1ee0a224bc USB: io_ti: Fix NULL dereference in chase_port()
The tty is NULL when the port is hanging up.
chase_port() needs to check for this.

This patch is intended for stable series.
The behavior was observed and tested in Linux 3.2 and 3.7.1.

Johan Hovold submitted a more elaborate patch for the mainline kernel.

[   56.277883] usb 1-1: edge_bulk_in_callback - nonzero read bulk status received: -84
[   56.278811] usb 1-1: USB disconnect, device number 3
[   56.278856] usb 1-1: edge_bulk_in_callback - stopping read!
[   56.279562] BUG: unable to handle kernel NULL pointer dereference at 00000000000001c8
[   56.280536] IP: [<ffffffff8144e62a>] _raw_spin_lock_irqsave+0x19/0x35
[   56.281212] PGD 1dc1b067 PUD 1e0f7067 PMD 0
[   56.282085] Oops: 0002 [#1] SMP
[   56.282744] Modules linked in:
[   56.283512] CPU 1
[   56.283512] Pid: 25, comm: khubd Not tainted 3.7.1 #1 innotek GmbH VirtualBox/VirtualBox
[   56.283512] RIP: 0010:[<ffffffff8144e62a>]  [<ffffffff8144e62a>] _raw_spin_lock_irqsave+0x19/0x35
[   56.283512] RSP: 0018:ffff88001fa99ab0  EFLAGS: 00010046
[   56.283512] RAX: 0000000000000046 RBX: 00000000000001c8 RCX: 0000000000640064
[   56.283512] RDX: 0000000000010000 RSI: ffff88001fa99b20 RDI: 00000000000001c8
[   56.283512] RBP: ffff88001fa99b20 R08: 0000000000000000 R09: 0000000000000000
[   56.283512] R10: 0000000000000000 R11: ffffffff812fcb4c R12: ffff88001ddf53c0
[   56.283512] R13: 0000000000000000 R14: 00000000000001c8 R15: ffff88001e19b9f4
[   56.283512] FS:  0000000000000000(0000) GS:ffff88001fd00000(0000) knlGS:0000000000000000
[   56.283512] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[   56.283512] CR2: 00000000000001c8 CR3: 000000001dc51000 CR4: 00000000000006e0
[   56.283512] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   56.283512] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   56.283512] Process khubd (pid: 25, threadinfo ffff88001fa98000, task ffff88001fa94f80)
[   56.283512] Stack:
[   56.283512]  0000000000000046 00000000000001c8 ffffffff810578ec ffffffff812fcb4c
[   56.283512]  ffff88001e19b980 0000000000002710 ffffffff812ffe81 0000000000000001
[   56.283512]  ffff88001fa94f80 0000000000000202 ffffffff00000001 0000000000000296
[   56.283512] Call Trace:
[   56.283512]  [<ffffffff810578ec>] ? add_wait_queue+0x12/0x3c
[   56.283512]  [<ffffffff812fcb4c>] ? usb_serial_port_work+0x28/0x28
[   56.283512]  [<ffffffff812ffe81>] ? chase_port+0x84/0x2d6
[   56.283512]  [<ffffffff81063f27>] ? try_to_wake_up+0x199/0x199
[   56.283512]  [<ffffffff81263a5c>] ? tty_ldisc_hangup+0x222/0x298
[   56.283512]  [<ffffffff81300171>] ? edge_close+0x64/0x129
[   56.283512]  [<ffffffff810612f7>] ? __wake_up+0x35/0x46
[   56.283512]  [<ffffffff8106135b>] ? should_resched+0x5/0x23
[   56.283512]  [<ffffffff81264916>] ? tty_port_shutdown+0x39/0x44
[   56.283512]  [<ffffffff812fcb4c>] ? usb_serial_port_work+0x28/0x28
[   56.283512]  [<ffffffff8125d38c>] ? __tty_hangup+0x307/0x351
[   56.283512]  [<ffffffff812e6ddc>] ? usb_hcd_flush_endpoint+0xde/0xed
[   56.283512]  [<ffffffff8144e625>] ? _raw_spin_lock_irqsave+0x14/0x35
[   56.283512]  [<ffffffff812fd361>] ? usb_serial_disconnect+0x57/0xc2
[   56.283512]  [<ffffffff812ea99b>] ? usb_unbind_interface+0x5c/0x131
[   56.283512]  [<ffffffff8128d738>] ? __device_release_driver+0x7f/0xd5
[   56.283512]  [<ffffffff8128d9cd>] ? device_release_driver+0x1a/0x25
[   56.283512]  [<ffffffff8128d393>] ? bus_remove_device+0xd2/0xe7
[   56.283512]  [<ffffffff8128b7a3>] ? device_del+0x119/0x167
[   56.283512]  [<ffffffff812e8d9d>] ? usb_disable_device+0x6a/0x180
[   56.283512]  [<ffffffff812e2ae0>] ? usb_disconnect+0x81/0xe6
[   56.283512]  [<ffffffff812e4435>] ? hub_thread+0x577/0xe82
[   56.283512]  [<ffffffff8144daa7>] ? __schedule+0x490/0x4be
[   56.283512]  [<ffffffff8105798f>] ? abort_exclusive_wait+0x79/0x79
[   56.283512]  [<ffffffff812e3ebe>] ? usb_remote_wakeup+0x2f/0x2f
[   56.283512]  [<ffffffff812e3ebe>] ? usb_remote_wakeup+0x2f/0x2f
[   56.283512]  [<ffffffff810570b4>] ? kthread+0x81/0x89
[   56.283512]  [<ffffffff81057033>] ? __kthread_parkme+0x5c/0x5c
[   56.283512]  [<ffffffff8145387c>] ? ret_from_fork+0x7c/0xb0
[   56.283512]  [<ffffffff81057033>] ? __kthread_parkme+0x5c/0x5c
[   56.283512] Code: 8b 7c 24 08 e8 17 0b c3 ff 48 8b 04 24 48 83 c4 10 c3 53 48 89 fb 41 50 e8 e0 0a c3 ff 48 89 04 24 e8 e7 0a c3 ff ba 00 00 01 00
<f0> 0f c1 13 48 8b 04 24 89 d1 c1 ea 10 66 39 d1 74 07 f3 90 66
[   56.283512] RIP  [<ffffffff8144e62a>] _raw_spin_lock_irqsave+0x19/0x35
[   56.283512]  RSP <ffff88001fa99ab0>
[   56.283512] CR2: 00000000000001c8
[   56.283512] ---[ end trace 49714df27e1679ce ]---

Signed-off-by: Wolfgang Frisch <wfpub@roembden.net>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 17:34:39 -08:00
Bjørn Mork
99beb2e968 USB: option: add TP-LINK HSUPA Modem MA180
The driver description files gives these names to the vendor specific
functions on this modem:

 Diagnostics VID_2357&PID_0201&MI_00
 NMEA        VID_2357&PID_0201&MI_01
 Modem       VID_2357&PID_0201&MI_03
 Networkcard VID_2357&PID_0201&MI_04

Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 17:34:39 -08:00
Bjørn Mork
2291dff02e USB: option: blacklist network interface on ONDA MT8205 4G LTE
The driver description files gives these names to the vendor specific
functions on this modem:

 Diag   VID_19D2&PID_0265&MI_00
 NMEA   VID_19D2&PID_0265&MI_01
 AT cmd VID_19D2&PID_0265&MI_02
 Modem  VID_19D2&PID_0265&MI_03
 Net    VID_19D2&PID_0265&MI_04

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 17:34:38 -08:00
Steven Rostedt
7dfc833178 staging/sb105x: PARPORT config is not good enough must use PARPORT_PC
The sb105x driver calls parport_pc_probe_port() which isn't defined if
PARPORT_PC isn't enabled. Protecting it with CONFIG_PARPORT is not good
enough, must protect it with CONFIG_PARPORT_PC.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 16:39:41 -08:00
Tormod Volden
811a37effd staging: wlan-ng: Fix clamping of returned SSID length
Commit 2e254212 broke listing of available network names, since it
clamped the length of the returned SSID to WLAN_BSSID_LEN (6) instead of
WLAN_SSID_MAXLEN (32).

https://bugzilla.kernel.org/show_bug.cgi?id=52501

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Cc: stable <stable@vger.kernel.org> # 3.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 16:38:07 -08:00
Greg Kroah-Hartman
aec992f2ba Second round of fixes for IIO post 3.8-rc1
Two tiny fixes
 * A build warning fix due to signed / unsigned comparison
 * Missing sign extension in adis16080
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Merge tag 'iio-fixes-for-3.8b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

  Second round of fixes for IIO post 3.8-rc1

  Two tiny fixes
  * A build warning fix due to signed / unsigned comparison
  * Missing sign extension in adis16080
2013-01-17 16:34:33 -08:00
Stephen Hurd
ebebd49a8e 8250/16?50: Add support for Broadcom TruManage redirected serial port
Add support for the UART device present in Broadcom TruManage capable
NetXtreme chips (ie: 5761m 5762, and 5725).

This implementation has a hidden transmit FIFO, so running in single-byte
interrupt mode results in too many interrupts.  The UART_CAP_HFIFO
capability was added to track this.  It continues to reload the THR as long
as the THRE and TSRE bits are set in the LSR up to a specified limit (1024
is used here).

Signed-off-by: Stephen Hurd <shurd@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 14:02:55 -08:00
Jiri Slaby
ded2f295a3 pty: return EINVAL for TIOCGPTN for BSD ptys
Commit bbb63c514a (drivers:tty:fix up
ENOIOCTLCMD error handling) changed the default return value from tty
ioctl to be ENOTTY and not EINVAL. This is appropriate.

But in case of TIOCGPTN for the old BSD ptys glibc started failing
because it expects EINVAL to be returned. Only then it continues to
obtain the pts name the other way around.

So fix this case by explicit return of EINVAL in this case.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Florian Westphal <fw@strlen.de>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org> # 3.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 13:56:57 -08:00
Ben Hutchings
1ee4c55fc9 staging: vt6656: Fix inconsistent structure packing
vt6656 has several headers that use the #pragma pack(1) directive to
enable structure packing, but never disable it.  The layout of
structures defined in other headers can then depend on which order the
various headers are included in, breaking the One Definition Rule.

In practice this resulted in crashes on x86_64 until the order of header
inclusion was changed for some files in commit 11d404cb56 ('staging:
vt6656: fix headers and add cfg80211.').  But we need a proper fix that
won't be affected by future changes to the order of inclusion.

This removes the #pragma pack(1) directives and adds __packed to the
structure definitions for which packing appears to have been intended.

Reported-and-tested-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 13:08:32 -08:00
K. Y. Srinivasan
33080c1cda Drivers: hv: balloon: Fix a memory leak
The send buffer was being leaked; fix it.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Reported-by: Jason Wang <jasowang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 11:58:00 -08:00
K. Y. Srinivasan
6427a0d771 Drivers: hv: balloon: Fix a bug in the definition of struct dm_info_msg
There is bug in the definition of struct dm_info_msg. This patch fixes
the definition of this structure and makes the corresponding adjustments.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 11:58:00 -08:00
Linus Torvalds
72ffaa48e1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 patches from Martin Schwidefsky:
 "A couple of bug fixes: one of the transparent huge page primitives is
  broken, the sched_clock function overflows after 417 days, the XFS
  module has grown too large for -fpic and the new pci code has broken
  normal channel subsystem notifications."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/chsc: fix SEI usage
  s390/time: fix sched_clock() overflow
  s390: use -fPIC for module compile
  s390/mm: fix pmd_pfn() for thp
2013-01-17 08:56:30 -08:00
Linus Torvalds
dfdebc2483 xfs: bugfixes for 3.8-rc4
- fix(es) for compound buffers
 - fix for dquot soft timer asserts due to overflow of d_blk_softlimit
 - fix for regression in dir v2 code introduced in commit 20f7e9f3
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Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs

Pull xfs bugfixes from Ben Myers:

 - fix(es) for compound buffers

 - fix for dquot soft timer asserts due to overflow of d_blk_softlimit

 - fix for regression in dir v2 code introduced in commit 20f7e9f372
   ("xfs: factor dir2 block read operations")

* tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs:
  xfs: recalculate leaf entry pointer after compacting a dir2 block
  xfs: remove int casts from debug dquot soft limit timer asserts
  xfs: fix the multi-segment log buffer format
  xfs: fix segment in xfs_buf_item_format_segment
  xfs: rename bli_format to avoid confusion with bli_formats
  xfs: use b_maps[] for discontiguous buffers
2013-01-16 16:19:54 -08:00
Linus Torvalds
309b51e879 ACPI and power management fixes for 3.8-rc4
* cpuidle initialization regression fix from Krzysztof Mazur.
 
 * cpuidle fix for power usage fields handling from Daniel Lezcano.
 
 * ACPI build fix from Yinghai Lu.
 
 -
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Merge tag 'pm+acpi-for-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management fixes from Rafael Wysocki:

 - cpuidle regression fix related to the initialization of state
   kobjects from Krzysztof Mazur.

 - cpuidle fix removing some not very useful code and making some
   user-visible problems go away at the same time.  From Daniel Lezcano.

 - ACPI build fix from Yinghai Lu.

* tag 'pm+acpi-for-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpuidle: remove the power_specified field in the driver
  ACPI / glue: Fix build with ACPI_GLUE_DEBUG set
  cpuidle: fix number of initialized/destroyed states
2013-01-16 14:34:52 -08:00
Eric Sandeen
37f13561de xfs: recalculate leaf entry pointer after compacting a dir2 block
Dave Jones hit this assert when doing a compile on recent git, with
CONFIG_XFS_DEBUG enabled:

XFS: Assertion failed: (char *)dup - (char *)hdr == be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)), file: fs/xfs/xfs_dir2_data.c, line: 828

Upon further digging, the tag found by xfs_dir2_data_unused_tag_p(dup)
contained "2" and not the proper offset, and I found that this value was
changed after the memmoves under "Use a stale leaf for our new entry."
in xfs_dir2_block_addname(), i.e.

                        memmove(&blp[mid + 1], &blp[mid],
                                (highstale - mid) * sizeof(*blp));

overwrote it.

What has happened is that the previous call to xfs_dir2_block_compact()
has rearranged things; it changes btp->count as well as the
blp array.  So after we make that call, we must recalculate the
proper pointer to the leaf entries by making another call to
xfs_dir2_block_leaf_p().

Dave provided a metadump image which led to a simple reproducer
(create a particular filename in the affected directory) and this
resolves the testcase as well as the bug on his live system.

Thanks also to dchinner for looking at this one with me.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Tested-by: Dave Jones <davej@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-01-16 16:08:55 -06:00
Brian Foster
ab7eac2200 xfs: remove int casts from debug dquot soft limit timer asserts
The int casts here make it easy to trigger an assert with a large
soft limit. For example, set a >4TB soft limit on an empty volume
to reproduce a (0 > -x) comparison due to an overflow of
d_blk_softlimit.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-01-16 16:08:40 -06:00
Mark Tinguely
91e4bac0b7 xfs: fix the multi-segment log buffer format
Per Dave Chinner suggestion, this patch:
 1) Corrects the detection of whether a multi-segment buffer is
    still tracking data.
 2) Clears all the buffer log formats for a multi-segment buffer.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-01-16 16:08:08 -06:00
Mark Tinguely
2d0e9df579 xfs: fix segment in xfs_buf_item_format_segment
Not every segment in a multi-segment buffer is dirty in a
transaction and they will not be outputted. The assert in
xfs_buf_item_format_segment() that checks for the at least
one chunk of data in the segment to be used is not necessary
true for multi-segmented buffers.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-01-16 16:07:56 -06:00
Mark Tinguely
0f22f9d0cd xfs: rename bli_format to avoid confusion with bli_formats
Rename the bli_format structure to __bli_format to avoid
accidently confusing them with the bli_formats pointer.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-01-16 16:07:37 -06:00
Mark Tinguely
d44d9bc68e xfs: use b_maps[] for discontiguous buffers
Commits starting at 77c1a08 introduced a multiple segment support
to xfs_buf. xfs_trans_buf_item_match() could not find a multi-segment
buffer in the transaction because it was looking at the single segment
block number rather than the multi-segment b_maps[0].bm.bn. This
results on a recursive buffer lock that can never be satisfied.

This patch:
 1) Changed the remaining b_map accesses to be b_maps[0] accesses.
 2) Renames the single segment b_map structure to __b_map to avoid
    future confusion.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
2013-01-16 16:07:11 -06:00
Andrew Cooper
9174adbee4 xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.
This fixes CVE-2013-0190 / XSA-40

There has been an error on the xen_failsafe_callback path for failed
iret, which causes the stack pointer to be wrong when entering the
iret_exc error path.  This can result in the kernel crashing.

In the classic kernel case, the relevant code looked a little like:

        popl %eax      # Error code from hypervisor
        jz 5f
        addl $16,%esp
        jmp iret_exc   # Hypervisor said iret fault
5:      addl $16,%esp
                       # Hypervisor said segment selector fault

Here, there are two identical addls on either option of a branch which
appears to have been optimised by hoisting it above the jz, and
converting it to an lea, which leaves the flags register unaffected.

In the PVOPS case, the code looks like:

        popl_cfi %eax         # Error from the hypervisor
        lea 16(%esp),%esp     # Add $16 before choosing fault path
        CFI_ADJUST_CFA_OFFSET -16
        jz 5f
        addl $16,%esp         # Incorrectly adjust %esp again
        jmp iret_exc

It is possible unprivileged userspace applications to cause this
behaviour, for example by loading an LDT code selector, then changing
the code selector to be not-present.  At this point, there is a race
condition where it is possible for the hypervisor to return back to
userspace from an interrupt, fault on its own iret, and inject a
failsafe_callback into the kernel.

This bug has been present since the introduction of Xen PVOPS support
in commit 5ead97c84 (xen: Core Xen implementation), in 2.6.23.

Signed-off-by: Frediano Ziglio <frediano.ziglio@citrix.com>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: stable@vger.kernel.org
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-01-16 16:17:42 -05:00
Kirill Smelkov
3a55fb0d9f Tell the world we gave up on pushing CC_OPTIMIZE_FOR_SIZE
In commit 281dc5c5ec ("Give up on pushing CC_OPTIMIZE_FOR_SIZE") we
already changed the actual default value, but the help-text still
suggested 'y'. Fix the help text too, for all the same reasons.

Sadly, -Os keeps on generating some very suboptimal code for certain
cases, to the point where any I$ miss upside is swamped by the downside.
The main ones are:

 - using "rep movsb" for memcpy, even on CPU's where that is
   horrendously bad for performance.

 - not honoring branch prediction information, so any I$ footprint you
   win from smaller code, you lose from less code density in the I$.

 - using divide instructions when that is very expensive.

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-16 12:42:57 -08:00
Chuansheng Liu
fbfc23ef90 mfd, TWL4030: TWL4030 need select REGMAP_I2C
Fix the build error:

  drivers/built-in.o: In function `twl_probe':
  drivers/mfd/twl-core.c:1256: undefined reference to `devm_regmap_init_i2c'
  make: *** [vmlinux] Error 1

Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[ Samuel is busy, taking it directly  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-16 12:36:22 -08:00
Ralf Baechle
30a4840a4c drivers/base/cpu.c: Fix typo in comment
[ We should make fun of people who can't speel too, but then we'd have
  no time for any real work at all  - Linus ]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-16 12:34:34 -08:00
Jiri Kosina
e65b9ad222 lockdep, rwsem: fix down_write_nest_lock() if !CONFIG_DEBUG_LOCK_ALLOC
Commit 1b963c81b1 ("lockdep, rwsem: provide down_write_nest_lock()")
contains a bug in a codepath when CONFIG_DEBUG_LOCK_ALLOC is disabled,
which causes down_read() to be called instead of down_write() by mistake
on such configurations.  Fix that.

Reported-and-tested-by: Andrew Clayton <andrew@digital-domain.net>
Reported-and-tested-by: Zlatko Calusic <zlatko.calusic@iskon.hr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-16 12:13:20 -08:00