Masami Hiramatsu [Fri, 2 Apr 2010 16:50:59 +0000 (12:50 -0400)]
perf probe: Fix to close dwarf when failing to analyze it
Fix to close libdw routine when failing to analyze it in
find_perf_probe_point().
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <
20100402165059.23551.95587.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Masami Hiramatsu [Fri, 2 Apr 2010 16:50:53 +0000 (12:50 -0400)]
perf probe: Correct error message for non-structure type
perf probe outputs incorrect error message when it is called with
non-existent field on a non-data structure local variable.
<Before>
# perf probe vfs_read 'count.hoge'
Fatal: Structure on a register is not supported yet.
# perf probe vfs_read 'count->hoge'
Fatal: Semantic error: hoge must be referred by '.'
This corrects the messsage.
<After>
# perf probe vfs_read 'count.hoge'
Fatal: count is not a data structure.
# perf probe vfs_read 'count->hoge'
Fatal: count is not a data structure.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <
20100402165052.23551.75866.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Masami Hiramatsu [Fri, 2 Apr 2010 16:50:45 +0000 (12:50 -0400)]
perf probe: Fix not to return non-matched file
Fix cu_find_realpath() not to return the last file path
if that is not matched to input pattern.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <
20100402165045.23551.47780.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Masami Hiramatsu [Fri, 2 Apr 2010 16:50:39 +0000 (12:50 -0400)]
perf probe: Fix --line syntax help and document
Just fix typos. --line option accepts ':START-END' syntax,
not ':START:END'.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
LKML-Reference: <
20100402165038.23551.62590.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Fri, 26 Mar 2010 13:08:44 +0000 (14:08 +0100)]
perf, x86: Add Nehelem PMU programming errata workaround
Implement the workaround for Intel Errata AAK100 and AAP53.
Also, remove the Core-i7 name for Nehalem events since there are
also Westmere based i7 chips.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <
1269608924.12097.147.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Thu, 25 Mar 2010 13:51:51 +0000 (14:51 +0100)]
x86, ptrace: Fix block-step
Implement ptrace-block-step using TIF_BLOCKSTEP which will set
DEBUGCTLMSR_BTF when set for a task while preserving any other
DEBUGCTLMSR bits.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
20100325135414.
017536066@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Thu, 25 Mar 2010 13:51:50 +0000 (14:51 +0100)]
x86, perf, bts, mm: Delete the never used BTS-ptrace code
Support for the PMU's BTS features has been upstreamed in
v2.6.32, but we still have the old and disabled ptrace-BTS,
as Linus noticed it not so long ago.
It's buggy: TIF_DEBUGCTLMSR is trampling all over that MSR without
regard for other uses (perf) and doesn't provide the flexibility
needed for perf either.
Its users are ptrace-block-step and ptrace-bts, since ptrace-bts
was never used and ptrace-block-step can be implemented using a
much simpler approach.
So axe all 3000 lines of it. That includes the *locked_memory*()
APIs in mm/mlock.c as well.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Markus Metzger <markus.t.metzger@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <
20100325135413.
938004390@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Peter Zijlstra [Thu, 25 Mar 2010 13:51:49 +0000 (14:51 +0100)]
perf, x86: Clean up debugctlmsr bit definitions
Move all debugctlmsr thingies into msr-index.h
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
20100325135413.
861425293@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Zhang, Yanmin [Thu, 25 Mar 2010 22:59:01 +0000 (19:59 -0300)]
perf record: Zero out mmap_array to fix segfault
Reported-by: Li Zefan <lizf@cn.fujitsu.com>
Tested-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Zhang Yanmin <yanmin_zhang@linux.intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <
1269557941-15617-6-git-send-email-acme@infradead.org>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Thu, 25 Mar 2010 22:59:00 +0000 (19:59 -0300)]
perf symbols: Move hex2u64 and strxfrchar to symbol.c
Mostly used in symbol.c so move them there to reduce the number
of files needed to use the symbol system.
Also do some header adjustments with the same intent.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269557941-15617-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Thu, 25 Mar 2010 22:58:59 +0000 (19:58 -0300)]
perf tools: Move __used from perf.h to linux/compiler.h
Just like in the kernel and also to remove the need to include
perf.h in the symbol subsystem.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269557941-15617-4-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Thu, 25 Mar 2010 22:58:58 +0000 (19:58 -0300)]
perf symbols: Move map related routines to map.c
Thru series of refactorings functions were being renamed but not
moved to map.c to reduce patch noise, now lets have them in the
same place so that use of the symbol system by tools can be
constrained to building and linking fewer source files:
symbol.c, map.c and rbtree.c.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269557941-15617-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Thu, 25 Mar 2010 22:58:57 +0000 (19:58 -0300)]
perf symbols: Pass the mmap parameters instead of using mmap_event
To reduce the coupling of the symbol system with the rest of
perf.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269557941-15617-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Wed, 24 Mar 2010 19:40:19 +0000 (16:40 -0300)]
perf report: Pass the DSO to 'perf annotate'
So that we ensure that the symbol asked for annotation really is
in the DSO we are interested in.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269459619-982-6-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Wed, 24 Mar 2010 19:40:18 +0000 (16:40 -0300)]
perf callchains: Store the map together with the symbol
We need this to know where a symbol in a callchain came from,
for various reasons, among them precise annotation from a
TUI/GUI tool.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269459619-982-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Wed, 24 Mar 2010 19:40:17 +0000 (16:40 -0300)]
perf tools: Introduce struct map_symbol
That will be in both struct hist_entry and struct
callchain_list, so that the TUI can store a pointer to the pair
(map, symbol) in the trees where hist_entries and
callchain_lists are present, to allow precise annotation instead
of looking for the first symbol with the selected name.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269459619-982-4-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Wed, 24 Mar 2010 19:40:16 +0000 (16:40 -0300)]
perf annotate: Allow specifying DSOs where to look for symbol
Using the same parameter as in 'perf report', allowing to
specify just one and disambiguate between DSOs that have the
symbol of interest.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269459619-982-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Wed, 24 Mar 2010 19:40:15 +0000 (16:40 -0300)]
perf symbols: Avoid unnecessary symbol loading when dso list is specified
We were performing the full thread__find_addr_location
operation, i.e. resolving to a map/dso _and_ loading its symbols
when we can optimize it by first calling thread__find_addr_map
to find just the map/dso, check if it is one that we are
interested in (passed via --dsos/-d in 'perf annotate', 'perf
report', etc) and if not avoid loading the symtab.
Nice speedup when we know which DSO we're interested in.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269459619-982-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Wed, 24 Mar 2010 19:40:14 +0000 (16:40 -0300)]
perf report: Add a popup menu to ask what operation is to be performed
Right now it presents a menu with these options:
+------------------------------+
| Annotate CURRENT_SYMBOL_NAME |
| Exit |
+------------------------------+
If the highlighted (current) symbol is not annotatable only the
"Exit" option will appear.
Also add a confirmation dialog when ESC is pressed on the top
level to avoid exiting the application by pressing one too many
ESC key.
To get to the menu just press the -> (Right navigation key), to
exit just press ESC.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269459619-982-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cyrill Gorcunov [Wed, 24 Mar 2010 04:09:26 +0000 (12:09 +0800)]
x86, perf: Add raw events support for the P4 PMU
The adding of raw event support lead to complete code
refactoring. I hope is became more readable then it was.
The list of changes:
1) The 64bit config field is enough to hold all information we need
to track event details. To achieve it we used *own* enum for
events selection in ESCR register and map this key into proper
value at moment of event enabling.
For the same reason we use 12LSB bits in CCCR register -- to track
which exactly cache trace event was requested. And we cear this bits
at real 'write' moment.
2) There is no per-cpu area reserved for P4 PMU anymore. We
don't need it. All is held by config.
3) Now we may use any available counter, ie we try to grab any
possible counter.
v2:
- Lin Ming reported the lack of ESCR selector in CCCR for cache events
v3:
- Don't loose cache event codes at config unpacking procedure, we may
need it one day so no obscure hack behind our back, better to clear
reserved bits explicitly when needed (thanks Ming for pointing out)
- Lin Ming fixed misplaced opcodes in cache events
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Tested-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <
1269403766.3409.6.camel@minggr.sh.intel.com>
[ v4: did a few whitespace fixlets ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Tue, 23 Mar 2010 17:33:58 +0000 (14:33 -0300)]
perf archive: Explain how to use the generated tarball
[root@doppio ~]# perf archive
Now please run:
$ tar xvf perf.data.tar.bz2 -C ~/.debug
wherever you need to run 'perf report' on.
[root@doppio ~]#
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269365638-10223-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Mon, 22 Mar 2010 20:52:49 +0000 (17:52 -0300)]
perf report: Implement Newt callgraphs
Starts collapsed, allows annotating by pressing 'A' or 'a' on
the symbol, be it the top level one or any of the symbols in the
chains.
It (ab)uses the only tree widget in newt, that is actually a
checkbox tree that we use with just one option ('.'), end result
is usable but we really need to create a custom widget tree so
that we can use the data structures we have (hist_entry rb_tree
+ callchain rb_tree + lists), so that we reduce the memory
footprint by not creating a mirror set of data structures in the
newtCheckboxTree widget.
Thanks to Frédéric Weisbacker for fixing the orphanage problem
in
301fde2, without that we were tripping a newt bug (fix
already sent to newt's maintainer).
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269291169-29820-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Mon, 22 Mar 2010 16:10:29 +0000 (13:10 -0300)]
perf tools: Exit browser before printing usage when unkown option passed
If not the screen will get garbled when using newt.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269274229-20442-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Mon, 22 Mar 2010 16:10:28 +0000 (13:10 -0300)]
perf stat: Better report failure to collect system wide stats
Before:
[acme@doppio linux-2.6-tip]$ perf stat -a sleep 1s
Performance counter stats for 'sleep 1s':
<not counted> task-clock-msecs
<not counted> context-switches
<not counted> CPU-migrations
<not counted> page-faults
<not counted> cycles
<not counted> instructions
<not counted> branches
<not counted> branch-misses
<not counted> cache-references
<not counted> cache-misses
1.
016998463 seconds time elapsed
[acme@doppio linux-2.6-tip]$
Now:
[acme@doppio linux-2.6-tip]$ perf stat -a sleep 1s
No permission to collect system-wide stats.
Consider tweaking /proc/sys/kernel/perf_event_paranoid.
[acme@doppio linux-2.6-tip]$
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269274229-20442-4-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Masami Hiramatsu [Mon, 22 Mar 2010 16:10:27 +0000 (13:10 -0300)]
perf probe: Add NO_DWARF make option
Add NO_DWARF make option for testing build without libdw.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
1269274229-20442-3-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Masami Hiramatsu [Mon, 22 Mar 2010 16:10:26 +0000 (13:10 -0300)]
perf probe: Cleanup debuginfo related code
Cleanup debuginfo related code to eliminate fragile code which
pointed by Ingo (Thanks!).
1) Invert logic of NO_DWARF_SUPPORT to DWARF_SUPPORT.
2) For removing assymetric/local variable ifdefs, introduce
more helper functions.
3) Change options order to reduce the number of ifdefs.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <
1269274229-20442-2-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Arnaldo Carvalho de Melo [Mon, 22 Mar 2010 16:10:25 +0000 (13:10 -0300)]
perf newt: Properly restore the screen when error exiting
Show an OK message box with the last message sent via pr_err,
etc.
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <
1269274229-20442-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Frederic Weisbecker [Mon, 22 Mar 2010 16:09:33 +0000 (13:09 -0300)]
perf: Fix orphan callchain branches
Callchains have markers inside their capture to tell we
enter a context (kernel, user, ...).
Those are not displayed in the callchains but they are
incidentally an active part of the radix tree where
callchains are stored, just like any other address.
If we have the two following callchains:
addr1 -> addr2 -> user context -> addr3
addr1 -> addr2 -> user context -> addr4
addr1 -> addr2 -> addr 5
This is pretty common if addr1 and addr2 are part of an
interrupt path, addr3 and addr4 are user addresses and
addr5 is a kernel non interrupt path.
This will be stored as follows in the tree:
addr1
addr2
/ \
/ addr5
user context
/ \
addr3 addr4
But we ignore the context markers in the report, hence
the addr3 and addr4 will appear as orphan branches:
|--28.30%-- hrtimer_interrupt
| smp_apic_timer_interrupt
| apic_timer_interrupt
| | <------------- here, no parent!
| | |
| | |--11.11%-- 0x7fae7bccb875
| | |
| | |--11.11%-- 0xffffffffff60013b
| | |
| | |--11.11%-- __pthread_mutex_lock_internal
| | |
| | |--11.11%-- __errno_location
Fix this by removing the context markers when we process the
callchains to the tree.
Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <
1269274173-20328-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Ingo Molnar [Mon, 22 Mar 2010 17:46:57 +0000 (18:46 +0100)]
Merge commit 'v2.6.34-rc2' into perf/core
Merge reason: Pick up latest perf fixes from upstream.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Sat, 20 Mar 2010 01:17:57 +0000 (18:17 -0700)]
Linux 2.6.34-rc2
Linus Torvalds [Sat, 20 Mar 2010 01:16:20 +0000 (18:16 -0700)]
Merge git://git./linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
serial: sh-sci: remove duplicated #include
sh: Export uncached helper symbols.
sh: Fix up NUMA build for 29-bit.
serial: sh-sci: Fix build failure for non-sh architectures.
sh: Fix up uncached offset for legacy 29-bit mode.
sh: Support CPU affinity masks for INTC controllers.
Linus Torvalds [Sat, 20 Mar 2010 01:14:22 +0000 (18:14 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/dvrabel/uwb
* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb:
uwb: remove duplicate cpu_to_le16()
uwb: declare MODULE_FIRMWARE() in i1480 DFU driver
uwb: make USB device id table constant
uwb: wlp: refactor wlp_get_<attribute>() macros
Linus Torvalds [Fri, 19 Mar 2010 20:49:29 +0000 (13:49 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mattst88/alpha-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6:
alpha: fix compile errors in dma-mapping-common.h
alpha: remove trailing spaces in messages
alpha: use __ratelimit
Linus Torvalds [Fri, 19 Mar 2010 20:42:43 +0000 (13:42 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Remove IOMMU_VMERGE config option
powerpc: Fix swiotlb to respect the boot option
powerpc: Do not call prink when CONFIG_PRINTK is not defined
powerpc: Use correct ccr bit for syscall error status
powerpc/fsl-booke: Get coherent bit from PTE
powerpc/85xx: Make sure lwarx hint isn't set on ppc32
Linus Torvalds [Fri, 19 Mar 2010 20:42:00 +0000 (13:42 -0700)]
Merge branch 'zerolen' of git://git./linux/kernel/git/jgarzik/misc-2.6
* 'zerolen' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
Delete zero-length file drivers/mtd/maps/omap_nor.c
Linus Torvalds [Fri, 19 Mar 2010 20:40:03 +0000 (13:40 -0700)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
tty_port,usb-console: Fix usb serial console open/close regression
tty: cpm_uart: use resource_size()
tty_buffer: Fix distinct type warning
hvc_console: Fix race between hvc_close and hvc_remove
uartlite: Fix build on sparc.
tty: Take a 256 byte padding into account when buffering below sub-page units
Revert "tty: Add a new VT mode which is like VT_PROCESS but doesn't require a VT_RELDISP ioctl call"
Linus Torvalds [Fri, 19 Mar 2010 20:39:42 +0000 (13:39 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
driver core: numa: fix BUILD_BUG_ON for node_read_distance
driver-core: document ERR_PTR() return values
kobject: documentation: Update to refer to kset-example.c.
sysdev: the cpu probe/release attributes should be sysdev_class_attributes
kobject: documentation: Fix erroneous example in kobject doc.
driver-core: fix missing kernel-doc in firmware_class
Driver core: Early platform kernel-doc update
sysfs: fix sysfs lockdep warning in mlx4 code
sysfs: fix sysfs lockdep warning in infiniband code
sysfs: fix sysfs lockdep warning in ipmi code
sysfs: Initialised pci bus legacy_mem field before use
sysfs: use sysfs_bin_attr_init in firmware class driver
Linus Torvalds [Fri, 19 Mar 2010 20:39:21 +0000 (13:39 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (45 commits)
USB: gadget/multi: cdc_do_config: remove redundant check
usb: r8a66597-hcd: fix removed from an attached hub
USB: xhci: Make endpoint interval debugging clearer.
USB: Fix usb_fill_int_urb for SuperSpeed devices
USB: cp210x: Remove double usb_control_msg from cp210x_set_config
USB: Remove last bit of CONFIG_USB_BERRY_CHARGE
USB: gadget: add gadget controller number for s3c-hsotg driver
USB: ftdi_sio: Fix locking for change_speed() function
USB: g_mass_storage: fixed module name in Kconfig
USB: gadget: f_mass_storage::fsg_bind(): fix error handling
USB: g_mass_storage: fix section mismatch warnings
USB: gadget: fix Blackfin builds after gadget cleansing
USB: goku_udc: remove potential null dereference
USB: option.c: Add Pirelli VID/PID and indicate Pirelli's modem interface is 0xff
USB: serial: Fix module name typo for qcaux Kconfig entry.
usb: cdc-wdm: Fix deadlock between write and resume
usb: cdc-wdm: Fix order in disconnect and fix locking
usb: cdc-wdm:Fix loss of data due to autosuspend
usb: cdc-wdm: Fix submission of URB after suspension
usb: cdc-wdm: Fix race between disconnect and debug messages
...
Jeff Garzik [Fri, 19 Mar 2010 18:25:45 +0000 (14:25 -0400)]
Delete zero-length file drivers/mtd/maps/omap_nor.c
The content was deleted in
cc87edb173effdf74e680ee6d622a935ff0c1d6f,
but the file remained as a zero-length file.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Linus Torvalds [Fri, 19 Mar 2010 16:43:06 +0000 (09:43 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (205 commits)
ceph: update for write_inode API change
ceph: reset osd after relevant messages timed out
ceph: fix flush_dirty_caps race with caps migration
ceph: include migrating caps in issued set
ceph: fix osdmap decoding when pools include (removed) snaps
ceph: return EBADF if waiting for caps on closed file
ceph: set osd request message front length correctly
ceph: reset front len on return to msgpool; BUG on mismatched front iov
ceph: fix snaptrace decoding on cap migration between mds
ceph: use single osd op reply msg
ceph: reset bits on connection close
ceph: remove bogus mds forward warning
ceph: remove fragile __map_osds optimization
ceph: fix connection fault STANDBY check
ceph: invalidate_authorizer without con->mutex held
ceph: don't clobber write return value when using O_SYNC
ceph: fix client_request_forward decoding
ceph: drop messages on unregistered mds sessions; cleanup
ceph: fix comments, locking in destroy_inode
ceph: move dereference after NULL test
...
Fix trivial conflicts in Documentation/ioctl/ioctl-number.txt
Linus Torvalds [Fri, 19 Mar 2010 16:36:18 +0000 (09:36 -0700)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: trivial white space
[CIFS] checkpatch cleanup
cifs: add cifs_revalidate_file
cifs: add a CIFSSMBUnixQFileInfo function
cifs: add a CIFSSMBQFileInfo function
cifs: overhaul cifs_revalidate and rename to cifs_revalidate_dentry
Peter Korsgaard [Fri, 12 Mar 2010 11:33:15 +0000 (12:33 +0100)]
USB: gadget/multi: cdc_do_config: remove redundant check
cdc_do_config() had a double ret check after fsg_add().
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Yoshihiro Shimoda [Tue, 16 Mar 2010 03:29:35 +0000 (12:29 +0900)]
usb: r8a66597-hcd: fix removed from an attached hub
fix the problem that when a USB hub is attached to the r8a66597-hcd and
a device is removed from that hub, it's likely that a kernel panic follows.
Reported-by: Markus Pietrek <Markus.Pietrek@emtrion.de>
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Tue, 16 Mar 2010 19:59:24 +0000 (12:59 -0700)]
USB: xhci: Make endpoint interval debugging clearer.
The xHCI hardware can only handle polling intervals that are a power of
two. When we add a new endpoint during a bandwidth allocation, and the
polling interval is rounded down to a power of two, print the original
polling interval in the endpoint descriptor.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Matthew Wilcox [Tue, 16 Mar 2010 19:55:44 +0000 (12:55 -0700)]
USB: Fix usb_fill_int_urb for SuperSpeed devices
USB 3 and Wireless USB specify a logarithmic encoding of the endpoint
interval that matches the USB 2 specification. usb_fill_int_urb() didn't
know that and was filling in the interval as if it was USB 1.1. Fix
usb_fill_int_urb() for SuperSpeed devices, but leave the wireless case
alone, because David Vrabel wants to keep the old encoding.
Update the struct urb kernel doc to note that SuperSpeed URBs must have
urb->interval specified in microframes.
Add a missing break statement in the usb_submit_urb() interrupt URB
checking, since wireless USB and SuperSpeed USB encode urb->interval
differently. This allows xHCI roothubs to actually register with khubd.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michael Brunner [Wed, 10 Mar 2010 22:26:37 +0000 (23:26 +0100)]
USB: cp210x: Remove double usb_control_msg from cp210x_set_config
This patch removes a double usb_control_msg that sets the cp210x
configuration registers a second time when calling cp210x_set_config.
For data sizes >2 the second write gets corrupted.
The patch has been created against 2.6.34-rc1, but all cp210x driver
revisions are affected.
Signed-off-by: Michael Brunner <mibru@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Christoph Egger [Wed, 10 Mar 2010 11:33:11 +0000 (12:33 +0100)]
USB: Remove last bit of CONFIG_USB_BERRY_CHARGE
One last bit was missed while removing the USB_BERRY_CHARGE config
option in
a8d4211f33a9573f7b1bdcfd9c9c48631d1515ee which gets dropped
by this patch.
Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Maurus Cuelenaere [Mon, 8 Mar 2010 17:20:59 +0000 (18:20 +0100)]
USB: gadget: add gadget controller number for s3c-hsotg driver
This prevents some drivers from complaining that no bcdDevice id was set.
Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alessio Igor Bogani [Sat, 13 Mar 2010 17:35:14 +0000 (18:35 +0100)]
USB: ftdi_sio: Fix locking for change_speed() function
The change_speed() function should be serialized against multiple calls.
Use the cfg_lock mutex to do this.
Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Michal Nazarewicz [Mon, 15 Mar 2010 10:10:23 +0000 (11:10 +0100)]
USB: g_mass_storage: fixed module name in Kconfig
The Kconfig help message for Mass Storage Gadget claimed the
module will be named "g_file_storage" whereas it should be
"g_mass_storage".
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Peter Korsgaard [Fri, 12 Mar 2010 14:55:28 +0000 (15:55 +0100)]
USB: gadget: f_mass_storage::fsg_bind(): fix error handling
Contrary to the comment in fsg_add, fsg_bind calls fsg_unbind on errors,
which decreases refcount and frees the fsg_dev structure, causing trouble
when fsg_add does the same.
Fix it by simply leaving up cleanup to fsg_add().
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Frysinger [Sun, 7 Mar 2010 15:36:27 +0000 (10:36 -0500)]
USB: g_mass_storage: fix section mismatch warnings
The recent commit (
0e530b45783f75) that moved usb_ep_autoconfig from the
__devinit section to the __init section missed the mass storage device.
Its fsg_bind() function uses the usb_ep_autoconfig() function from non
__init context leading to:
WARNING: drivers/usb/gadget/g_mass_storage.o(.text): Section mismatch in
reference from the function _fsg_bind()
to the function .init.text:_usb_ep_autoconfig()
So move fsg_bind() into __init as well.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Frysinger [Tue, 9 Mar 2010 05:35:22 +0000 (00:35 -0500)]
USB: gadget: fix Blackfin builds after gadget cleansing
The recent change to clean out dead gadget drivers (
90f7976880bbbf99)
missed the call to gadget_is_musbhsfc() behind CONFIG_BLACKFIN. This
causes Blackfin gadget builds to fail since the function no longer
exists anywhere.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Carpenter [Sat, 6 Mar 2010 11:08:56 +0000 (14:08 +0300)]
USB: goku_udc: remove potential null dereference
"dev" is always null here. In the end it's only used to get the
pci_name() of "pdev" which is redundant information and so I
removed it.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
spark [Fri, 5 Mar 2010 06:18:05 +0000 (14:18 +0800)]
USB: option.c: Add Pirelli VID/PID and indicate Pirelli's modem interface is 0xff
Signed-off-by: spark <spark@bandrich.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stefan Schmidt [Wed, 3 Mar 2010 18:37:12 +0000 (19:37 +0100)]
USB: serial: Fix module name typo for qcaux Kconfig entry.
The module is called qcaux and not moto_modem. Also use help instead of
---help-- to be in sync with the other Kconfig entries.
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Sat, 27 Feb 2010 19:57:12 +0000 (20:57 +0100)]
usb: cdc-wdm: Fix deadlock between write and resume
The new runtime PM scheme allows resume() to have no locks.
This fixes the deadlock.
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Sat, 27 Feb 2010 19:56:47 +0000 (20:56 +0100)]
usb: cdc-wdm: Fix order in disconnect and fix locking
- as the callback can schedule work, URBs must be killed first
- if the driver causes an autoresume, the caller must handle locking
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Sat, 27 Feb 2010 19:56:22 +0000 (20:56 +0100)]
usb: cdc-wdm:Fix loss of data due to autosuspend
The guarding flag must be set and tested under spinlock
and cleared before the URBs are resubmitted in resume.
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Sat, 27 Feb 2010 19:55:52 +0000 (20:55 +0100)]
usb: cdc-wdm: Fix submission of URB after suspension
There's a window under which cdc-wdm may submit
an URB to a device about to be suspended. This
introduces a flag to prevent it.
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Sat, 27 Feb 2010 19:55:26 +0000 (20:55 +0100)]
usb: cdc-wdm: Fix race between disconnect and debug messages
dev_dbg() and dev_err() cannot be used to report failures
that may have been caused by a device's removal
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Sat, 27 Feb 2010 19:54:59 +0000 (20:54 +0100)]
usb: cdc-wdm: Fix race between autosuspend and reading from the device
While an available response is read the device must not
be autosuspended. This requires a flag dedicated to that
purpose.
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Sat, 27 Feb 2010 19:54:24 +0000 (20:54 +0100)]
usb: cdc-wdm: Fix race between write and disconnect
Unify mutexes to fix a race between write and disconnect
and shift the test for disconnection to always report it.
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Felipe Balbi [Fri, 12 Mar 2010 08:27:24 +0000 (10:27 +0200)]
usb: musb: core: declare mbase only where it's used
... and avoid a compilation if we disable host side
of musb.
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Frysinger [Fri, 12 Mar 2010 08:27:23 +0000 (10:27 +0200)]
USB: musb: fix warnings in Blackfin regs
The recent commit "usb: musb: Add context save and restore support" added
some stubs for the Blackfin code so things would compile, but it also
added a bunch of warnings due to missing return statements.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Frysinger [Fri, 12 Mar 2010 08:27:21 +0000 (10:27 +0200)]
usb: musb: abstract out ULPI_BUSCONTROL register reads/writes
The USB PHY on current Blackfin processors is a UTMI+ level 2 PHY.
However, it has no ULPI support - so there are no registers at all.
That means accesses to ULPI_BUSCONTROL have to be abstracted away
like other MUSB registers.
This fixes building for Blackfin parts again.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Lindgren [Fri, 12 Mar 2010 08:35:20 +0000 (10:35 +0200)]
usb: musb: Fix compile error for omaps for musb_hdrc
CONFIG_ARCH_OMAP34XX is now CONFIG_ARCH_OMAP3.
But since drivers/usb/musb/omap2430.c use CONFIG_PM for these
registers and functions, do the same for the header.
Otherwise we get the following for most omap3 defconfigs:
drivers/usb/musb/omap2430.c:261: error: expected identifier or '(' before 'do'
drivers/usb/musb/omap2430.c:261: error: expected identifier or '(' before 'while'
drivers/usb/musb/omap2430.c:268: error: expected identifier or '(' before 'do'
drivers/usb/musb/omap2430.c:268: error: expected identifier or '(' before 'while'
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Grant Likely [Thu, 11 Mar 2010 22:06:54 +0000 (15:06 -0700)]
usb/gadget: fix compile error on r8a66597-udc.c
C file uses IS_ERR and PTR_ERR, but doesn't include <linux/err.h>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Fri, 12 Mar 2010 10:27:21 +0000 (11:27 +0100)]
USB: Fix documentation for avoid_reset_quirk
The name used in the documentation doesn't match reality.
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nathaniel McCallum [Thu, 11 Mar 2010 18:09:26 +0000 (13:09 -0500)]
USB: option: add support for a new CMOTECH device to usb/serial/option
Signed-off-by: Nathaniel McCallum <nathaniel@natemccallum.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nathaniel McCallum [Thu, 11 Mar 2010 18:01:17 +0000 (13:01 -0500)]
USB: option: move hardcoded PID to a macro in usb/serial/option
Signed-off-by: Nathaniel McCallum <nathaniel@natemccallum.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Nathaniel McCallum [Thu, 11 Mar 2010 18:09:24 +0000 (13:09 -0500)]
USB: option: fix incorrect manufacturer name in usb/serial/option: MAXON->CMOTECH
Signed-off-by: Nathaniel McCallum <nathaniel@natemccallum.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Daniel Sangorrin [Thu, 11 Mar 2010 22:10:58 +0000 (14:10 -0800)]
USB: serial: ftdi: add CONTEC vendor and product id
This is a patch to ftdi_sio_ids.h and ftdi_sio.c that adds identifiers for
CONTEC USB serial converter. I tested it with the device COM-1(USB)H
[akpm@linux-foundation.org: keep the VIDs sorted a bit]
Signed-off-by: Daniel Sangorrin <daniel.sangorrin@gmail.com>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Radek Liboska <liboska@uochb.cas.cz>
Cc: stable <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andiry Xu [Fri, 12 Mar 2010 09:10:04 +0000 (17:10 +0800)]
USB: xHCI: re-initialize cmd_completion
When a signal interrupts a Configure Endpoint command, the cmd_completion used
in xhci_configure_endpoint() is not re-initialized and the
wait_for_completion_interruptible_timeout() will return failure. Initialize
cmd_completion in xhci_configure_endpoint().
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alex Chiang [Tue, 16 Mar 2010 20:48:45 +0000 (14:48 -0600)]
USB: xhci: rename driver to xhci_hcd
Naming consistency with other USB HCDs.
Signed-off-by: Alex Chiang <achiang@hp.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sonic Zhang [Mon, 8 Mar 2010 16:26:01 +0000 (11:26 -0500)]
USB: musb: fix build error introduced by isoc change
The recent commit "usb: musb: Fix for isochronous IN transfer" (
f82a689fa)
seems to have been against an older kernel version. It uses the old style
naming of variables. Unfortunately, this breaks building for most MUSB
users out there since "bDesiredMode" has been renamed to "desired_mode".
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bernhard Rosenkraenzer [Wed, 10 Mar 2010 11:36:43 +0000 (12:36 +0100)]
USB: qcserial: add new device ids
This patch adds various USB device IDs for Gobi 2000 devices, as found in the
drivers available at https://www.codeaurora.org/wiki/GOBI_Releases
Signed-off-by: Bernhard Rosenkraenzer <bero@arklinux.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Tue, 2 Mar 2010 23:37:56 +0000 (00:37 +0100)]
USB: cdc-acm: Fix stupid NULL pointer in resume()
Stupid logic bug passing a just nulled pointer
Signed-off-by: Oliver Neukum <neukum@b1-systems.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Clemens Ladisch [Mon, 1 Mar 2010 16:18:56 +0000 (17:18 +0100)]
USB: EHCI: adjust ehci_iso_stream for changes in ehci_qh
The EHCI driver stores in usb_host_endpoint.hcpriv a pointer to either
an ehci_qh or an ehci_iso_stream structure, and uses the contents of the
hw_info1 field to distinguish the two cases.
After ehci_qh was split into hw and sw parts, ehci_iso_stream must also
be adjusted so that it again looks like an ehci_qh structure.
This fixes a NULL pointer access in ehci_endpoint_disable() when it
tries to access qh->hw->hw_info1.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-by: Colin Fletcher <colin.m.fletcher@googlemail.com>
Cc: stable <stable@kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Clemens Ladisch [Mon, 1 Mar 2010 08:12:50 +0000 (09:12 +0100)]
USB: EHCI: fix ITD list order
When isochronous URBs are shorter than one frame and when more than one
ITD in a frame has been completed before the interrupt can be handled,
scan_periodic() completes the URBs in the order in which they are found
in the descriptor list. Therefore, the descriptor list must contain the
ITDs in the correct order, i.e., a new ITD must be linked in after any
previous ITDs of the same endpoint.
This should fix garbled capture data in the USB audio drivers.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-by: Colin Fletcher <colin.m.fletcher@googlemail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Huang Ying [Sun, 28 Feb 2010 05:51:29 +0000 (13:51 +0800)]
USB: Option: Add support for a variant of DLink DWM 652 U5
I found a DLink DWM 652 U5 USB 3G modem has product ID 0xce1e instead
of orignal 0xce16. The new ID is added.
And I found there are two entries for 0xce16, one has raw number, the
other has symbol DLINK_PRODUCT_DWM_652_U5. This is fixed too.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Ondrej Zary [Sat, 27 Feb 2010 21:56:28 +0000 (22:56 +0100)]
USB: unusual_devs.h: Fix capacity for SL11R-IDE 2.6c
SL11R-IDE 2.6c (at least) reports wrong capacity (one sector more).
Reading that last sector causes the device not to work anymore (and looks
like HAL or something does that automatically after plugging in):
sd 5:0:0:0: [sdc] Device not ready
sd 5:0:0:0: [sdc] Result: hostbyte=0x00 driverbyte=0x08
sd 5:0:0:0: [sdc] Sense Key : 0x2 [current]
sd 5:0:0:0: [sdc] ASC=0x0 ASCQ=0x0
sd 5:0:0:0: [sdc] CDB: cdb[0]=0x28: 28 00 04 a8 b5 70 00 00 01 00
Add unusual_devs entry to fix the capacity.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johan Hovold [Sat, 27 Feb 2010 15:24:49 +0000 (16:24 +0100)]
USB: serial: use port endpoint size to determine if ep is available
It is possible to have a multi-port device with a port lacking an in or
out bulk endpoint. Only checking for num_bulk_in or num_bulk_out is thus not
sufficient to determine whether a specific port has an in or out bulk
endpoint.
This fixes potential null pointer dereferences in the generic open and
write routines, as well as access to uninitialised fifo in write_room
and chars_in_buffer.
Also let write fail with ENODEV (instead of 0) on missing out endpoint
(also on zero-length writes).
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johan Hovold [Sat, 27 Feb 2010 13:06:07 +0000 (14:06 +0100)]
USB: serial: fix softint not being called on errors
Make sure usb_serial_port_softint is called on errors also when using
multi urb writes.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Johan Hovold [Sat, 27 Feb 2010 13:05:46 +0000 (14:05 +0100)]
USB: serial: fix error message on close in generic driver
Resubmitting read urb fails with -EPERM if completion handler runs while
urb is being killed on close. This should not be reported as an error.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Sat, 6 Mar 2010 20:04:03 +0000 (15:04 -0500)]
USB: fix usbfs regression
This patch (as1352) fixes a bug in the way isochronous input data is
returned to userspace for usbfs transfers. The entire buffer must be
copied, not just the first actual_length bytes, because the individual
packets will be discontiguous if any of them are short.
Reported-by: Markus Rechberger <mrechberger@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jason Wessel [Tue, 9 Mar 2010 03:50:11 +0000 (21:50 -0600)]
tty_port,usb-console: Fix usb serial console open/close regression
Commit
e1108a63e10d344284011cccc06328b2cd3e5da3 ("usb_serial: Use the
shutdown() operation") breaks the ability to use a usb console
starting in 2.6.33. This was observed when using
console=ttyUSB0,115200 as a boot argument with an FTDI device. The
error is:
ftdi_sio ttyUSB0: ftdi_submit_read_urb - failed submitting read urb, error -22
The handling of the ASYNCB_INITIALIZED changed in 2.6.32 such that in
tty_port_shutdown() it always clears the flag if it is set. The fix
is to add a variable to the tty_port struct to indicate when the tty
port is a console.
CC: Alan Cox <alan@linux.intel.com>
CC: Alan Stern <stern@rowland.harvard.edu>
CC: Oliver Neukum <oliver@neukum.org>
CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tobias Klauser [Thu, 11 Mar 2010 22:08:18 +0000 (14:08 -0800)]
tty: cpm_uart: use resource_size()
Use the resource_size function instead of manually calculating the
resource size. This reduces the chance of introducing off-by-one errors.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Kumar Gala <galak@gate.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fang Wenqi [Tue, 9 Mar 2010 10:54:28 +0000 (18:54 +0800)]
tty_buffer: Fix distinct type warning
CC drivers/char/tty_buffer.o
drivers/char/tty_buffer.c: In function ‘tty_insert_flip_string_fixed_flag’:
drivers/char/tty_buffer.c:251: warning: comparison of distinct pointer types lacks a cast
drivers/char/tty_buffer.c: In function ‘tty_insert_flip_string_flags’:
drivers/char/tty_buffer.c:288: warning: comparison of distinct pointer types lacks a cast
Fix it by replacing min() with min_t() in tty_insert_flip_string_flags and
tty_insert_flip_string_fixed_flag().
Signed-off-by: Fang Wenqi <antonf@turbolinux.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Amit Shah [Fri, 12 Mar 2010 06:23:15 +0000 (11:53 +0530)]
hvc_console: Fix race between hvc_close and hvc_remove
Alan pointed out a race in the code where hvc_remove is invoked. The
recent virtio_console work is the first user of hvc_remove().
Alan describes it thus:
The hvc_console assumes that a close and remove call can't occur at the
same time.
In addition tty_hangup(tty) is problematic as tty_hangup is asynchronous
itself....
So this can happen
hvc_close hvc_remove
hung up ? - no
lock
tty = hp->tty
unlock
lock
hp->tty = NULL
unlock
notify del
kref_put the hvc struct
close completes
tty is destroyed
tty_hangup dead tty
tty->ops will be NULL
NULL->...
This patch adds some tty krefs and also converts to using tty_vhangup().
Reported-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
CC: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: linuxppc-dev@ozlabs.org
CC: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Miller [Wed, 3 Mar 2010 10:50:26 +0000 (02:50 -0800)]
uartlite: Fix build on sparc.
We can get this driver enabled via MFD_TIMBERDALE which only
requires GPIO to be on.
But the of_address_to_resource() function is only present on
powerpc and microblaze, so we have to conditionalize the
CONFIG_OF probing bits on that.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mel Gorman [Tue, 2 Mar 2010 22:24:19 +0000 (22:24 +0000)]
tty: Take a 256 byte padding into account when buffering below sub-page units
The TTY layer takes some care to ensure that only sub-page allocations
are made with interrupts disabled. It does this by setting a goal of
"TTY_BUFFER_PAGE" to allocate. Unfortunately, while TTY_BUFFER_PAGE takes the
size of tty_buffer into account, it fails to account that tty_buffer_find()
rounds the buffer size out to the next 256 byte boundary before adding on
the size of the tty_buffer.
This patch adjusts the TTY_BUFFER_PAGE calculation to take into account the
size of the tty_buffer and the padding. Once applied, tty_buffer_alloc()
should not require high-order allocations.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 16 Mar 2010 00:14:15 +0000 (17:14 -0700)]
Revert "tty: Add a new VT mode which is like VT_PROCESS but doesn't require a VT_RELDISP ioctl call"
This reverts commit
eec9fe7d1ab4a0dfac4cb43047a7657fffd0002f.
Ari writes as the reason this should be reverted:
The problems with this patch include:
1. There's at least one subtlety I overlooked - switching
between X servers (i.e. from one X VT to another) still requires
the cooperation of both X servers. I was assuming that KMS
eliminated this.
2. It hasn't been tested at all (no X server patch exists which
uses the new mode).
As he was the original author of the patch, I'll revert it.
Cc: Ari Entlich <atrigent@ccs.neu.edu>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Rientjes [Wed, 10 Mar 2010 22:50:21 +0000 (14:50 -0800)]
driver core: numa: fix BUILD_BUG_ON for node_read_distance
node_read_distance() has a BUILD_BUG_ON() to prevent buffer overruns when
the number of nodes printed will exceed the buffer length.
Each node only needs four chars: three for distance (maximum distance is
255) and one for a seperating space or a trailing newline.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jani Nikula [Thu, 11 Mar 2010 16:11:45 +0000 (18:11 +0200)]
driver-core: document ERR_PTR() return values
A number of functions in the driver core return ERR_PTR() values on
error. Document this in the kernel-doc of the functions.
Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Robert P. J. Day [Fri, 12 Mar 2010 12:30:35 +0000 (07:30 -0500)]
kobject: documentation: Update to refer to kset-example.c.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stephen Rothwell [Mon, 15 Mar 2010 23:33:32 +0000 (10:33 +1100)]
sysdev: the cpu probe/release attributes should be sysdev_class_attributes
This fixes these warnings:
drivers/base/cpu.c:264: warning: initialization from incompatible pointer type
drivers/base/cpu.c:265: warning: initialization from incompatible pointer type
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Robert P. J. Day [Thu, 11 Mar 2010 12:59:09 +0000 (07:59 -0500)]
kobject: documentation: Fix erroneous example in kobject doc.
Replace uio_mem example for kobjects with uio_map, since the uio_mem
struct no longer contains a kobject.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Randy Dunlap [Wed, 10 Mar 2010 19:47:58 +0000 (11:47 -0800)]
driver-core: fix missing kernel-doc in firmware_class
Fix kernel-doc warning in firmware_class.c:
Warning(drivers/base/firmware_class.c:94): No description found for parameter 'attr'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Magnus Damm [Wed, 10 Mar 2010 11:50:38 +0000 (20:50 +0900)]
Driver core: Early platform kernel-doc update
This patch updates the kernel-doc notation for early
platform functions.
Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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