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Commit Graph

101895 Commits

Author SHA1 Message Date
Roland McGrath
380fdd7585 x86 ptrace: user-sets-TF nits
This closes some arcane holes in single-step handling that can arise
only when user programs set TF directly (via popf or sigreturn) and
then use vDSO (syscall/sysenter) system call entry.  In those entry
paths, the clear_TF_reenable case hits and we must check TIF_SINGLESTEP
to be sure our bookkeeping stays correct wrt the user's view of TF.

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-16 12:15:17 -07:00
Roland McGrath
d4d6715016 x86 ptrace: unify syscall tracing
This unifies and cleans up the syscall tracing code on i386 and x86_64.

Using a single function for entry and exit tracing on 32-bit made the
do_syscall_trace() into some terrible spaghetti.  The logic is clear and
simple using separate syscall_trace_enter() and syscall_trace_leave()
functions as on 64-bit.

The unification adds PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP support
on x86_64, for 32-bit ptrace() callers and for 64-bit ptrace() callers
tracing either 32-bit or 64-bit tasks.  It behaves just like 32-bit.

Changing syscall_trace_enter() to return the syscall number shortens
all the assembly paths, while adding the SYSEMU feature in a simple way.

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-16 12:15:17 -07:00
Roland McGrath
64f0973319 x86 ptrace: unify TIF_SINGLESTEP
This unifies the treatment of TIF_SINGLESTEP on i386 and x86_64.
The bit is now excluded from _TIF_WORK_MASK on i386 as it has been
on x86_64.  This means the do_notify_resume() path using it is never
used, so TIF_SINGLESTEP is not cleared on returning to user mode.

Both now leave TIF_SINGLESTEP set when returning to user, so that
it's already set on an int $0x80 system call entry.  This removes
the need for testing TF on the system_call path.  Doing it this way
fixes the regression for PTRACE_SINGLESTEP into a sigreturn syscall,
introduced by commit 1e2e99f0e4.

The clear_TF_reenable case that sets TIF_SINGLESTEP can only happen
on a non-exception kernel entry, i.e. sysenter/syscall instruction.
That will always get to the syscall exit tracing path.

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-16 12:15:16 -07:00
Roland McGrath
6718d0d6da x86 ptrace: block-step fix
The enable_single_step() logic bails out early if TF is already set.
That skips some of the bookkeeping that keeps things straight.
This makes PTRACE_SINGLEBLOCK break the behavior of a user task
that was already setting TF itself in user mode.

Fix the bookkeeping to notice the old TF setting as it should.

Test case at: http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tests/tests/step-jump-cont-strict.c?cvsroot=systemtap

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-16 12:15:16 -07:00
Linus Torvalds
a3cf859321 Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: (44 commits)
  hwmon: (w83l786ng) Convert to a new-style i2c driver
  hwmon: (w83l785ts) Convert to a new-style i2c driver
  hwmon: (w83793) Convert to a new-style i2c driver
  hwmon: (w83792d) Convert to a new-style i2c driver
  hwmon: (w83791d) Convert to a new-style i2c driver
  hwmon: (thmc50) Convert to a new-style i2c driver
  hwmon: (smsc47m192) Convert to a new-style i2c driver
  hwmon: (max6650) Convert to a new-style i2c driver
  hwmon: (max1619) Convert to a new-style i2c driver
  hwmon: (lm93) Convert to a new-style i2c driver
  hwmon: (lm92) Convert to a new-style i2c driver
  hwmon: (lm90) Convert to a new-style i2c driver
  hwmon: (lm87) Convert to a new-style i2c driver
  hwmon: (lm83) Convert to a new-style i2c driver
  hwmon: (lm80) Convert to a new-style i2c driver
  hwmon: (lm77) Convert to a new-style i2c driver
  hwmon: (lm63) Convert to a new-style i2c driver
  hwmon: (gl520sm) Convert to a new-style i2c driver
  hwmon: (gl518sm) Convert to a new-style i2c driver
  hwmon: (fscpos) Convert to a new-style i2c driver
  ...
2008-07-16 11:47:35 -07:00
Randy Dunlap
3c3622dcb6 Fix compile issues in fs/compat_ioctl.c when CONFIG_BLOCK is disabled
Fix fs/compat_ioctl.c to handle CONFIG_BLOCK=n, CONFIG_SCSI=n to avoid
build errors:

In file included from include/scsi/scsi.h:12,
                 from fs/compat_ioctl.c:71:
include/scsi/scsi_cmnd.h:27:25: warning: "BLK_MAX_CDB" is not defined
include/scsi/scsi_cmnd.h:28:3: error: #error MAX_COMMAND_SIZE can not be bigger than BLK_MAX_CDB
In file included from include/scsi/scsi.h:12,
                 from fs/compat_ioctl.c:71:
include/scsi/scsi_cmnd.h: In function 'scsi_bidi_cmnd':
include/scsi/scsi_cmnd.h:182: error: implicit declaration of function 'blk_bidi_rq'
include/scsi/scsi_cmnd.h:183: error: dereferencing pointer to incomplete type
include/scsi/scsi_cmnd.h: In function 'scsi_in':
include/scsi/scsi_cmnd.h:189: error: dereferencing pointer to incomplete type

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-16 11:46:16 -07:00
Kumar Gala
e3621ee633 powerpc/ep8248e: Fix compile problem if !CONFIG_FS_ENET
If we don't enable FS_ENET we get build issues:

arch/powerpc/platforms/built-in.o: In function `ep8248e_mdio_probe':
arch/powerpc/platforms/82xx/ep8248e.c:129: undefined reference to `alloc_mdio_bitbang'
arch/powerpc/platforms/82xx/ep8248e.c:143: undefined reference to `mdiobus_register'

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-16 11:43:48 -07:00
Ralf Baechle
bef5b54bd7 Fix MIPS cross-compile problem
Crosscompiling on a Fedora 9 machine running gcc 4.3.0 as its host compiler
and gcc 3.4.6 for the mips-linux target results in the following build
error:

$ make malta_defconfig
$ make
cc1: error: unrecognized command line option "-fno-stack-protector"
scripts/kconfig/conf -s arch/mips/Kconfig
cc1: error: unrecognized command line option "-fno-stack-protector"

The arch Makefile is included too late so the host compiler is feature
tested, not the crosscompiler as intended and thus the Makefile applies
adds -fno-stack-protector to crosscompiler's flags which fails for gcc
3.4.6.  The bug was introduced by e06b8b98da
in 2.6.25; 35bb5b1e0e did add more flags
testing before the arch Makefile inclusion.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-16 11:42:32 -07:00
Jean Delvare
33468e7637 hwmon: (w83l786ng) Convert to a new-style i2c driver
The new-style w83l786ng driver implements the optional detect()
callback to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Kevin Lo <kevlo@kevlo.org>
2008-07-16 19:30:18 +02:00
Jean Delvare
dc18a4184d hwmon: (w83l785ts) Convert to a new-style i2c driver
The new-style w83l785ts driver implements the optional detect()
callback to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:18 +02:00
Jean Delvare
a7f13a6ec4 hwmon: (w83793) Convert to a new-style i2c driver
The new-style w83793 driver implements the optional detect()
callback to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:17 +02:00
Jean Delvare
31d5d275a1 hwmon: (w83792d) Convert to a new-style i2c driver
The new-style w83792d driver implements the optional detect()
callback to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:17 +02:00
Jean Delvare
cb0c1af379 hwmon: (w83791d) Convert to a new-style i2c driver
The new-style w83791d driver implements the optional detect()
callback to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Marc Hulsman <m.hulsman@tudelft.nl>
2008-07-16 19:30:17 +02:00
Jean Delvare
ccf3748832 hwmon: (thmc50) Convert to a new-style i2c driver
The new-style thmc50 driver implements the optional detect()
callback to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
2008-07-16 19:30:16 +02:00
Jean Delvare
8fb597bb6e hwmon: (smsc47m192) Convert to a new-style i2c driver
The new-style smsc47m192 driver implements the optional detect()
callback to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hartmut Rick <linux@rick.claranet.de>
2008-07-16 19:30:16 +02:00
Jean Delvare
0d57abd5b8 hwmon: (max6650) Convert to a new-style i2c driver
The new-style max6650 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hans J. Koch <hjk@linutronix.de>
2008-07-16 19:30:16 +02:00
Jean Delvare
c6d3f6fa1b hwmon: (max1619) Convert to a new-style i2c driver
The new-style max1619 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alexey Fisher <fishor@mail.ru>
2008-07-16 19:30:15 +02:00
Jean Delvare
70b724063f hwmon: (lm93) Convert to a new-style i2c driver
The new-style lm93 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Cc: Eric J. Bowersox <ericb@aspsys.com>
Cc: Carsten Emde <cbe@osadl.org>
Cc: Hans J. Koch <hjk@linutronix.de>
2008-07-16 19:30:15 +02:00
Jean Delvare
910e8dcf16 hwmon: (lm92) Convert to a new-style i2c driver
The new-style lm92 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:15 +02:00
Jean Delvare
9b0e852692 hwmon: (lm90) Convert to a new-style i2c driver
The new-style lm90 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:15 +02:00
Jean Delvare
a888420af0 hwmon: (lm87) Convert to a new-style i2c driver
The new-style lm87 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ben Hutchings <bhutchings@solarflare.com>
2008-07-16 19:30:14 +02:00
Jean Delvare
b6aacdcefa hwmon: (lm83) Convert to a new-style i2c driver
The new-style lm83 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:14 +02:00
Jean Delvare
8c8bacc883 hwmon: (lm80) Convert to a new-style i2c driver
The new-style lm80 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:14 +02:00
Jean Delvare
a189dd62d3 hwmon: (lm77) Convert to a new-style i2c driver
The new-style lm77 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Andras Bali <drewie@freemail.hu>
2008-07-16 19:30:13 +02:00
Jean Delvare
d5957be2f1 hwmon: (lm63) Convert to a new-style i2c driver
The new-style lm63 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:13 +02:00
Jean Delvare
a23a9fe1d4 hwmon: (gl520sm) Convert to a new-style i2c driver
The new-style gl520sm driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Maarten Deprez <maartendeprez@users.sourceforge.net>
2008-07-16 19:30:13 +02:00
Jean Delvare
95d80e7c83 hwmon: (gl518sm) Convert to a new-style i2c driver
The new-style gl518sm driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:13 +02:00
Jean Delvare
b9e39b1b1b hwmon: (fscpos) Convert to a new-style i2c driver
The new-style fscpos driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:12 +02:00
Jean Delvare
40ac1994bf hwmon: (fschmd) Convert to a new-style i2c driver
The new-style fschmd driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hans de Goede <j.w.r.degoede@hhs.nl>
2008-07-16 19:30:12 +02:00
Jean Delvare
c2df1591df hwmon: (fscher) Convert to a new-style i2c driver
The new-style fscher driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Reinhard Nissl <rnissl@gmx.de>
2008-07-16 19:30:12 +02:00
Jean Delvare
935ada8c44 hwmon: (f75375s) Drop legacy i2c driver
Drop the legacy f75375s i2c driver, and add a detect callback to the
new-style i2c driver to achieve the same functionality.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Riku Voipio <riku.voipio@movial.fi>
2008-07-16 19:30:11 +02:00
Jean Delvare
70313eabfc hwmon: (ds1621) Convert to a new-style i2c driver
The new-style ds1621 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:11 +02:00
Jean Delvare
71163c7c36 hwmon: (atxp1) Convert to a new-style i2c driver
The new-style atxp1 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:11 +02:00
Jean Delvare
063675b156 hwmon: (asb100) Convert to a new-style i2c driver
The new-style asb100 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:11 +02:00
Jean Delvare
eea54766c6 hwmon: (adt7473) Convert to a new-style i2c driver
The new-style adt7473 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Darrick J. Wong <djwong@us.ibm.com>
2008-07-16 19:30:10 +02:00
Jean Delvare
008f1ca51e hwmon: (adt7470) Convert to a new-style i2c driver
The new-style adt7470 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Darrick J. Wong <djwong@us.ibm.com>
2008-07-16 19:30:10 +02:00
Jean Delvare
7347cb388e hwmon: (ads7828) Convert to a new-style i2c driver
The new-style ads7828 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:10 +02:00
Jean Delvare
7fae828310 hwmon: (adm9240) Convert to a new-style i2c driver
The new-style adm9240 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Grant Coady <gcoady.lk@gmail.com>
2008-07-16 19:30:09 +02:00
Jean Delvare
af200f881d hwmon: (adm1031) Convert to a new-style i2c driver
The new-style adm1031 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alexandre d'Alton <alex@alexdalton.org>
2008-07-16 19:30:09 +02:00
Jean Delvare
9c97fb4d25 hwmon: (adm1029) Convert to a new-style i2c driver
The new-style adm1029 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Corentin Labbe <corentin.labbe@geomatys.fr>
2008-07-16 19:30:09 +02:00
Jean Delvare
57f7eb0bcb hwmon: (adm1026) Convert to a new-style i2c driver
The new-style adm1026 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:08 +02:00
Jean Delvare
7dbafe021b hwmon: (adm1025) Convert to a new-style i2c driver
The new-style adm1025 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:08 +02:00
Jean Delvare
65817ed8d1 hwmon: (adm1021) Convert to a new-style i2c driver
The new-style adm1021 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:08 +02:00
Jean Delvare
369932f6f8 hwmon: (ad7418) Convert to a new-style i2c driver
The ad7418 driver is only used on embedded platforms where i2c
devices can easily be declared in platform code. Thus a new-style
i2c driver makes perfect sense. This lets us get rid of quirky
detection code (these chips have no identification registers) and
shrinks the binary driver size by 38%.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
2008-07-16 19:30:08 +02:00
Jean Delvare
61c91f7ded w1/ds2482: Convert to a new-style driver
The new-style ds2482 driver implements the optional detect() callback
to cover the use cases of the legacy driver. I'm curious if anyone
really needs this though, so it might be removed in the feature.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:07 +02:00
Jean Delvare
bd8d421f7c i2c: Convert the max6875 driver to a new-style i2c driver
The new-style max6875 driver implements the optional detect() callback
to cover the use cases of the legacy driver. I'm curious if anyone
really needs this though, so it might be removed in the feature.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:07 +02:00
Jean Delvare
3d63430a26 i2c: Convert the pca9539 driver to a new-style i2c driver
The new-style pca9539 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Warning: users will now have to use the force module parameter to get
the driver to attach to their device. That's not a bad thing as these
devices can't be detected anyway.

Note that this doesn't change the fact that this driver is deprecated
in favor of gpio/pca953x.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:07 +02:00
Jean Delvare
97addff6de i2c: Convert the pcf8575 driver to a new-style i2c driver
The new-style pcf8575 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Warning: users will now have to use the force module parameter to get
the driver to attach to their device. That's not a bad thing as these
devices can't be detected anyway.

Note that this doesn't change the fact that this driver is deprecated
in favor of gpio/pcf857x.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:06 +02:00
Jean Delvare
833bedb813 i2c: Convert the pcf8574 driver to a new-style i2c driver
The new-style pcf8574 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Warning: users will now have to use the force module parameter to get
the driver to attach to their device. That's not a bad thing as these
devices can't be detected anyway.

Note that this doesn't change the fact that this driver is deprecated
in favor of gpio/pcf857x.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:06 +02:00
Jean Delvare
8b77e6ac49 i2c: Convert the pcf8591 driver to a new-style i2c driver
The new-style pcf8591 driver implements the optional detect() callback
to cover the use cases of the legacy driver.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
2008-07-16 19:30:06 +02:00