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There is little rationale for marking bus_for_each_drv() __must_check.
It is more of an iteration helper than a real function. You don't know
in advance which callback it will be used on, so you have no clue how
important it can be to check the returned value. In practice, this
helper function can be used for best-effort tasks.
As a matter of fact, bus_for_each_dev() is not marked __must_check.
So remove it from bus_for_each_drv() as well. This is the same that
was done back in October 2006 by Russell King for
device_for_each_child(), for exactly the same reasons.
Signed-off-by: Jean Delvare <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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struct dma_coherent_mem in drivers/base/dma-coherent.c
has member 'device_base' that is of type u32,
but is assigned value of type dma_addr_t, which may be
64 bits for x86_64. Change the type to dma_addr_t.
Signed-off-by: Marin Mitov <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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The kernel/hotplug sysctl variable (/proc/sys/kernel/hotplug file) was
made conditional on CONFIG_NET by commit
f743ca5e10f4145e0b3e6d11b9b46171e16af7ce (applied in 2.6.18) to fix
problems with undefined references in 2.6.16 when CONFIG_HOTPLUG=y &&
!CONFIG_NET, but this restriction is no longer needed.
This patch makes the kernel/hotplug sysctl variable depend only on
CONFIG_HOTPLUG.
Signed-off-by: Ian Abbott <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Remove IRQF_DISABLED since it is deprecated and a no-op in the
current kernel.
Signed-off-by: Hans J. Koch <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Remove IRQF_DISABLED since it is deprecated and a no-op in the
current kernel.
Signed-off-by: Hans J. Koch <[email protected]>
Acked-by: John Ogness <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Remove IRQF_DISABLED flag since it is deprecated and a no-op in the
current kernel.
Signed-off-by: Hans J. Koch <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* 'modules' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
module: cleanup comments, remove noinline
module: group post-relocation functions into post_relocation()
module: move module args strndup_user to just before use
module: pass load_info into other functions
module: fix sysfs cleanup for !CONFIG_SYSFS
module: sysfs cleanup
module: layout_and_allocate
module: fix crash in get_ksymbol() when oopsing in module init
module: kallsyms functions take struct load_info
module: refactor out section header rewriting: FIX modversions
module: refactor out section header rewriting
module: add load_info
module: reduce stack usage for each_symbol()
module: refactor load_module part 5
module: refactor load_module part 4
module: refactor load_module part 3
module: refactor load_module part 2
module: refactor load_module
module: module_unload_init() cleanup
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* 'virtio' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
virtio_blk: Remove VBID ioctl
virtio_blk: Add 'serial' attribute to virtio-blk devices (v2)
virtio_blk: support barriers without FLUSH feature
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git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
* 'upstream/xen' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: (23 commits)
xen/panic: use xen_reboot and fix smp_send_stop
Xen: register panic notifier to take crashes of xen guests on panic
xen: support large numbers of CPUs with vcpu info placement
xen: drop xen_sched_clock in favour of using plain wallclock time
pvops: do not notify callers from register_xenstore_notifier
Introduce CONFIG_XEN_PVHVM compile option
blkfront: do not create a PV cdrom device if xen_hvm_guest
support multiple .discard.* sections to avoid section type conflicts
xen/pvhvm: fix build problem when !CONFIG_XEN
xenfs: enable for HVM domains too
x86: Call HVMOP_pagetable_dying on exit_mmap.
x86: Unplug emulated disks and nics.
x86: Use xen_vcpuop_clockevent, xen_clocksource and xen wallclock.
implement O_NONBLOCK for /proc/xen/xenbus
xen: Fix find_unbound_irq in presence of ioapic irqs.
xen: Add suspend/resume support for PV on HVM guests.
xen: Xen PCI platform device driver.
x86/xen: event channels delivery on HVM.
x86: early PV on HVM features initialization.
xen: Add support for HVM hypercalls.
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I'm trying to generate a <set> of <book>s in docbook for wireless to
link together all the cfg80211 and mac80211 documentation.
However, docbook will generate "re01.html" anew for each book for the
first <refentry>, presumably due to a bug in the stylesheets.
An effective workaround is to use IDs for the filenames, which makes
them more descriptive as well, e.g. API-enum-ieee80211-band.html.
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Fixed some typos and wording.
Signed-off-by: Nicolas Kaiser <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Update section 3.7 examples to reflect the current state of the
Makefiles used. Fix spelling and grammar errors along with flow of text.
Signed-off-by: matt mooney <[email protected]>
Reviewed-by: WANG Cong <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Update section 3.2 and 3.5 example, along with text in section 3.5
to reflect change.
Signed-off-by: matt mooney <[email protected]>
Reviewed-by: WANG Cong <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Update section 3.3 Loadable module goals - obj-m, from $(<module_name>-objs)
to $(<module_name>-y) for easier addition of conditional objects to the
module. The examples are also updated to reflect the current state of
each Makefile used.
Signed-off-by: matt mooney <[email protected]>
Reviewed-by: WANG Cong <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Trivial typo fixes.
Signed-off-by: Tommi Rantala <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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- sys_io_destroy(): acutually return -EINVAL if the context pointed to
is invalidIndex: linux-2.6.33-rc4/fs/aio.c
- sys_io_getevents(): An argument specifying timeout is not `when',
but `timeout'.
- sys_io_getevents(): Should describe what is returned if this syscall
succeeds.
Signed-off-by: Satoru Takeuchi <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Reviewed-by: Jeff Moyer <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (79 commits)
powerpc/8xx: Add support for the MPC8xx based boards from TQC
powerpc/85xx: Introduce support for the Freescale P1022DS reference board
powerpc/85xx: Adding DTS for the STx GP3-SSA MPC8555 board
powerpc/85xx: Change deprecated binding for 85xx-based boards
powerpc/tqm85xx: add a quirk for ti1520 PCMCIA bridge
powerpc/tqm85xx: update PCI interrupt-map attribute
powerpc/mpc8308rdb: support for MPC8308RDB board from Freescale
powerpc/fsl_pci: add quirk for mpc8308 pcie bridge
powerpc/85xx: Cleanup QE initialization for MPC85xxMDS boards
powerpc/85xx: Fix booting for P1021MDS boards
powerpc/85xx: Fix SWIOTLB initalization for MPC85xxMDS boards
powerpc/85xx: kexec for SMP 85xx BookE systems
powerpc/5200/i2c: improve i2c bus error recovery
of/xilinxfb: update tft compatible versions
powerpc/fsl-diu-fb: Support setting display mode using EDID
powerpc/5121: doc/dts-bindings: update doc of FSL DIU bindings
powerpc/5121: shared DIU framebuffer support
powerpc/5121: move fsl-diu-fb.h to include/linux
powerpc/5121: fsl-diu-fb: fix issue with re-enabling DIU area descriptor
powerpc/512x: add clock structure for Video-IN (VIU) unit
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* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (49 commits)
microblaze: Add KGDB support
microblaze: Support brki rX, 0x18 for user application debugging
microblaze: Remove nop after MSRCLR/SET, MTS, MFS instructions
microblaze: Simplify syscall rutine
microblaze: Move PT_MODE saving to delay slot
microblaze: Fix _interrupt function
microblaze: Fix _user_exception function
microblaze: Put together addik instructions
microblaze: Use delay slot in syscall macros
microblaze: Save kernel mode in delay slot
microblaze: Do not mix register saving and mode setting
microblaze: Move SAVE_STATE upward
microblaze: entry.S: Macro optimization
microblaze: Optimize hw exception rutine
microblaze: Implement clear_ums macro and fix SAVE_STATE macro
microblaze: Remove additional setup for kernel_mode
microblaze: Optimize SAVE_STATE macro
microblaze: Remove additional loading
microblaze: Completely remove working with R11 register
microblaze: Do not setup BIP in _debug_exception
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
arch/sparc/mm: Use GFP_KERNEL
MAINTAINERS: Add trailing slash to SBUS path.
sbus: autoconvert trivial BKL users to private mutex
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] increase ia64 static per cpu area
[IA64] Put ia64 config files on the Uwe Kleine-König diet
[IA64] perfmon: convert to unlocked_ioctl
[IA64] beautify vmlinux.lds.h
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* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (150 commits)
MIPS: PowerTV: Separate PowerTV USB support from non-USB code
MIPS: strip the un-needed sections of vmlinuz
MIPS: Clean up the calculation of VMLINUZ_LOAD_ADDRESS
MIPS: Clean up arch/mips/boot/compressed/decompress.c
MIPS: Clean up arch/mips/boot/compressed/ld.script
MIPS: Unify the suffix of compressed vmlinux.bin
MIPS: PowerTV: Add Gaia platform definitions.
MIPS: BCM47xx: Fix nvram_getenv return value.
MIPS: Octeon: Allow more than 3.75GB of memory with PCIe
MIPS: Clean up notify_die() usage.
MIPS: Remove unused task_struct.trap_no field.
Documentation: Mention that KProbes is supported on MIPS
SAMPLES: kprobe_example: Make it print something on MIPS.
MIPS: kprobe: Add support.
MIPS: Add instrunction format for BREAK and SYSCALL
MIPS: kprobes: Define regs_return_value()
MIPS: Ritually kill stupid printk.
MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts.
MIPS: Octeon: Support 256 MSI on PCIe
MIPS: Decode core number for R2 CPUs.
...
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Update the kgdb docs to include information about kernel mode setting support.
[Randy Dunlap <[email protected]>: grammatical corrections]
CC: Randy Dunlap <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
xtensa: Disable PCI and nfsroot on simulation target
xtensa: Add missing include in coprocessor.h
xtensa: Fix the network driver for the simulator target
xtensa: Shuffle include statements to fix linker script
xtensa: Add -mforce-no-pic option is supported
xtensa: Fixes due to bss boundary symbol name changes.
xtensa: Fix linker script patch-up
xtensa: Fix FLUSH_DCACHE macro for some variants.
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Signed-off-by: Nick Piggin <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Commit 5349ef3127c77075ff70b2014f17ae0fbcaaf199 (drm/fb: fix
FBIOGET/PUT_VSCREENINFO pixel clock handling) changed the logic of
when a pixclock was valid vs invalid.
The atomic kernel mode setting used by the kernel debugger relies upon
the drm_fb_helper_check_var() to always return -EINVAL. Until a
better solution exists, this behavior will be restored.
CC: David Airlie <[email protected]>
CC: Jesse Barnes <[email protected]>
CC: Clemens Ladisch <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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If the HW compression is left on, the call backs from the HW will
crash the kernel. The only time this code is called is when kernel
mode setting is in use with kgdb and the kdb shell.
The atomic display pipe handler callback will reset everything when
kgdb restores kernel to the run state.
Signed-off-by: Jason Wessel <[email protected]>
Acked-by: Jesse Barnes <[email protected]>
CC: David Airlie <[email protected]>
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Implement atomic kernel mode settings using the fb layer's debug hook
system for supporting debugger interaction.
Signed-off-by: Jesse Barnes <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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Implement the callbacks for KDB entry/exit via the drm helpers.
Signed-off-by: Jesse Barnes <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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Add fb ops to handle enter/exit of the kernel debugger. If present, the
fb core will register them with KGDB and they'll be called when the
debugger is entered and exited. The new functions are responsible for
switching to an appropriate debug framebuffer and restoring the
interrupted state at exit time.
Signed-off-by: Jesse Barnes <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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Add the kms keyword processing to kgdboc and the callbacks to invoke
console switching when ever kgdboc is started with "kgdboc=kms,kbd".
Signed-off-by: Jason Wessel <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
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The kernel console interface stores the number of lines it is
configured to use. The kdb debugger can greatly benefit by knowing how
many lines there are on the console for the pager functionality
without having the end user compile in the setting or have to
repeatedly change it at run time.
Signed-off-by: Jason Wessel <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
CC: David Airlie <[email protected]>
CC: Andrew Morton <[email protected]>
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These functions allow the kernel debugger to save and restore the
state of the system console.
Signed-off-by: Jesse Barnes <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
CC: David Airlie <[email protected]>
CC: Andrew Morton <[email protected]>
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When an arch such as mips and microblaze does not implement either HW
or software single stepping the debug core should re-enter kdb. The
kdb code will properly ignore the single step operation. Attempting
to single step the kernel without software or hardware support causes
unpredictable kernel crashes.
Signed-off-by: Jason Wessel <[email protected]>
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Use the macros provided by the HW breakpoint API.
Signed-off-by: Dongdong Deng <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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The mips kgdb specific code does not support software or HW single
stepping so it should not implement
Signed-off-by: Jason Wessel <[email protected]>
Signed-off-by: Dongdong Deng <[email protected]>
Acked-by: Ralf Baechle <[email protected]>
CC: [email protected]
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The kdb kmap should never get used outside of the kernel debugger
exception context.
Signed-off-by: Jason Wessel<[email protected]>
CC: Andrew Morton <[email protected]>
CC: Ingo Molnar <[email protected]>
CC: [email protected]
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Found by gcc 4.6's new warnings
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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In systems with more than one processor it is desirable to look at the
per cpu trace buffers.
Signed-off-by: Jason Wessel <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
CC: Frederic Weisbecker <[email protected]>
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Add in a helper function to allow the kdb shell to dump the ftrace
buffer.
Modify trace.c to expose the capability to iterate over the ftrace
buffer in a read only capacity.
Signed-off-by: Jason Wessel <[email protected]>
Acked-by: Steven Rostedt <[email protected]>
CC: Frederic Weisbecker <[email protected]>
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kgdb_handle_breakpoint checks the first arch_kgdb_breakpoint
which is not known by gdb that's why is necessary jump over
it. The jump lenght is equal to BREAK_INSTR_SIZE that's
why is cleaner to use defined macro instead of hardcoded
non-described offset.
Signed-off-by: Michal Simek <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>
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Now that ARM implements the notify die handlers, add the ability for
the kernel debugger to receive the notifications.
Signed-off-by: Jason Wessel <[email protected]>
CC: Russell King <[email protected]>
CC: [email protected]
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Presently the usable registers definitions on x86 are not contiguous
for kgdb. The x86 kgdb uses a case statement for the sparse register
accesses. The array which defines the registers (dbg_reg_def) should
not be used directly in order to safely work with sparse register
definitions.
Specifically there was a problem when gdb accesses ORIG_AX, which is
accessed only through the case statement.
This patch encodes register memory using the size information provided
from the debugger which avoids the need to look up the size of the
register. The dbg_set_reg() function always further validates the
inputs from the debugger.
Signed-off-by: Jason Wessel <[email protected]>
Signed-off-by: Dongdong Deng <[email protected]>
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The gdbserial 'p' and 'P' packets allow gdb to individually get and
set registers instead of querying for all the available registers.
Signed-off-by: Jason Wessel <[email protected]>
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Implement the ability to individually get and set registers for kdb
and kgdb for arm.
Signed-off-by: Jason Wessel <[email protected]>
CC: Russell King <[email protected]>
CC: [email protected]
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Implement the ability to individually get and set registers for kdb
and kgdb for mips.
Signed-off-by: Jason Wessel <[email protected]>
Acked-by: Ralf Baechle <[email protected]>
CC: [email protected]
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Implement the ability to individually get and set registers for kdb
and kgdb for x86.
Signed-off-by: Jason Wessel <[email protected]>
Acked-by: H. Peter Anvin <[email protected]>
CC: Ingo Molnar <[email protected]>
CC: [email protected]
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The kdb shell specification includes the ability to get and set
architecture specific registers by name.
For the time being individual register get and set will be implemented
on a per architecture basis. If an architecture defines
DBG_MAX_REG_NUM > 0 then kdb and the gdbstub will use the capability
for individually getting and setting architecture specific registers.
Signed-off-by: Jason Wessel <[email protected]>
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The gdb debugger understands how to parse short versions of the thread
reference string as long as the bytes are paired in sets of two
characters. The kgdb implementation was always sending 8 leading
zeros which could be omitted, and further optimized in the case of
non-negative thread numbers. The negative numbers are used to
reference a specific cpu in the case of kgdb.
An example of the previous i386 stop packet looks like:
T05thread:00000000000003bb;
New stop packet response:
T05thread:03bb;
The previous ThreadInfo response looks like:
m00000000fffffffe,0000000000000001,0000000000000002,0000000000000003,0000000000000004,0000000000000005,0000000000000006,0000000000000007,000000000000000c,0000000000000088,000000000000008a,000000000000008b,000000000000008c,000000000000008d,000000000000008e,00000000000000d4,00000000000000d5,00000000000000dd
New ThreadInfo response:
mfffffffe,01,02,03,04,05,06,07,0c,88,8a,8b,8c,8d,8e,d4,d5,dd
A few bytes saved means better response time when using kgdb over a
serial line.
Signed-off-by: Jason Wessel <[email protected]>
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Signed-off-by: Andy Shevchenko <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
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Separate USB code into a file separate from asic/asic_devices.
Separating the USB code from everything else in asic/asic_devices.c goes
a long way toward reducing the use of that file as a dumping ground for
everything that didn't seem to fit anywhere else.
Signed-off-by: David VomLehn <[email protected]>
To: [email protected]
Cc: [email protected]
Cc: [email protected]
Patchwork: http://patchwork.linux-mips.org/patch/1522/
Signed-off-by: Ralf Baechle <[email protected]>
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