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2008-07-16Merge branch 'x86/step' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland into x86/step
2008-07-16x86 ptrace: user-sets-TF nitsRoland McGrath
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>
2008-07-16x86 ptrace: unify syscall tracingRoland McGrath
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>
2008-07-16x86 ptrace: unify TIF_SINGLESTEPRoland McGrath
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 1e2e99f0e4aa6363e8515ed17011c210c8f1b52a. 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>
2008-07-16x86 ptrace: block-step fixRoland McGrath
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>
2008-07-16Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* '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 ...
2008-07-16Fix compile issues in fs/compat_ioctl.c when CONFIG_BLOCK is disabledRandy Dunlap
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>
2008-07-16powerpc/ep8248e: Fix compile problem if !CONFIG_FS_ENETKumar Gala
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>
2008-07-16Fix MIPS cross-compile problemRalf Baechle
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 e06b8b98da071f7dd78fb7822991694288047df0 in 2.6.25; 35bb5b1e0e84cfa1a8906f7e6a77f391ff315791 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>
2008-07-16hwmon: (w83l786ng) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (w83l785ts) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (w83793) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (w83792d) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (w83791d) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (thmc50) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (smsc47m192) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (max6650) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (max1619) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm93) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm92) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm90) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm87) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm83) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm80) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm77) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (lm63) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (gl520sm) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (gl518sm) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (fscpos) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (fschmd) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (fscher) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (f75375s) Drop legacy i2c driverJean Delvare
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>
2008-07-16hwmon: (ds1621) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (atxp1) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (asb100) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adt7473) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adt7470) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (ads7828) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adm9240) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adm1031) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adm1029) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adm1026) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adm1025) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (adm1021) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16hwmon: (ad7418) Convert to a new-style i2c driverJean Delvare
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>
2008-07-16w1/ds2482: Convert to a new-style driverJean Delvare
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>
2008-07-16i2c: Convert the max6875 driver to a new-style i2c driverJean Delvare
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>
2008-07-16i2c: Convert the pca9539 driver to a new-style i2c driverJean Delvare
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>
2008-07-16i2c: Convert the pcf8575 driver to a new-style i2c driverJean Delvare
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>
2008-07-16i2c: Convert the pcf8574 driver to a new-style i2c driverJean Delvare
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>
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