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2009-09-22checkpatch: add some common Blackfin checksMike Frysinger1-0/+22
Add checks for Blackfin-specific issues that seem to crop up from time to time. In particular, we have helper macros to break a 32bit address into the hi/lo parts, and we want to make sure people use the csync/ssync variant that includes fun anomaly workarounds. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org> Cc: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22checkpatch: version 0.29Andy Whitcroft1-1/+1
Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22checkpatch: limit sN/uN matches to actual bit sizesAndy Whitcroft1-2/+2
Limit our type matcher to the s/u/le/be etc sizes that actually exist to prevent miss categorising s2 as a type. Fix up the spelling of the error also. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22checkpatch: format strings should not have brackets in macrosAndy Whitcroft1-1/+2
We should not recommend braces for the following: #define pr_fmt(fmt) "%s: " fmt, __func__ allow things with double quotes round them to avoid this check. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22checkpatch: make -f alias --file, add --help, more verbose help messageHannes Eder1-13/+42
Impact: - More verbose help/usage message. - Make the option -f an alias for --file. - On -h, --help, and --version display help message and exit(0). - With no FILE(s) given, exit(1) with "no input files". - On invalid options display help/usage and exit(1). Based on a patch by Pavel Machek. Signed-off-by: Hannes Eder <hannes@hanneseder.net> Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22checkpatch: indent checks -- stop when we run out of continuation linesAndy Whitcroft1-2/+3
Ensure we terminate when there are no futher continuation lines when trying to determine relative indent of conditionals and their blocks. Reported-by: John Daiker <daikerjohn@gmail.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22checkpatch: handle C99 comments correctly (performance issue)Daniel Walker1-0/+13
This fixes the sanitation process in checkpatch.pl so that it blocks out the text after a C99 style comment the same way it does with block style comments. This prevents the text from getting processed as regular code. Signed-off-by: Daniel Walker <dwalker@fifo99.com> Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22checkpatch: possible types -- else cannot start a typeAndy Whitcroft1-0/+2
An else cannot start a type, it would have to be within a block after the else. This can trigger false modifier matching. Signed-off-by: Andy Whitcroft <apw@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: add maintainers in order listed in matched sectionJoe Perches1-16/+54
Previous behavior was "bottom-up" in each section from the pattern "F:" entry that matched. Now information is entered into the various lists in the "as entered" order for each matched section. This also allows the F: entry to be put anywhere in a section, not just as the last entries in the section. And a couple of improvements: Don't alphabetically sort before outputting the matched scm, status, subsystem and web sections. Ignore content after a single email address so these entries are acceptable M: name <address> whatever other comment And a fix: Make an M: entry without a name again use the name from an immediately preceding P: line if it exists. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: add --remove-duplicatesJoe Perches1-53/+55
Allow control over the elimination of duplicate email names and addresses --remove-duplicates will use the first email name or address presented --noremove-duplicates will emit all names and addresses --remove-duplicates is enabled by default For instance: $ ./scripts/get_maintainer.pl -f drivers/char/tty_ioctl.c Greg Kroah-Hartman <gregkh@suse.de> Alan Cox <alan@linux.intel.com> Mike Frysinger <vapier@gentoo.org> Alexey Dobriyan <adobriyan@gmail.com> linux-kernel@vger.kernel.org $ ./scripts/get_maintainer.pl -f --noremove-duplicates drivers/char/tty_ioctl.c Greg Kroah-Hartman <gregkh@suse.de> Alan Cox <alan@redhat.com> Alan Cox <alan@linux.intel.com> Alan Cox <alan@lxorguk.ukuu.org.uk> Mike Frysinger <vapier@gentoo.org> Alexey Dobriyan <adobriyan@gmail.com> linux-kernel@vger.kernel.org Using --remove-duplicates could eliminate multiple maintainers that share the same name but not the same email address. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: using --separator implies --nomultilineJoe Perches1-0/+5
If a person sets a separator, it's only used if --nomultiline is set. Don't make the command line also include --nomultiline in that case. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: add .mailmap use, shell and email cleanupsJoe Perches1-7/+65
Add reading and using .mailmap file if it exists Convert address entries in .mailmap to first encountered address Don't terminate shell commands with \n Strip characters found after sign-offs by: name <address> [stripped] Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: better email routines, use perl not shell where possibleJoe Perches1-56/+96
Added format_email and parse_email routines to reduce inline use. Added email_address_inuse to eliminate multiple maintainer entries for the same email address, the first name encountered is used. Used internal perl equivalents of shell cmd use of grep|cut|sort|uniq Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: add --pattern-depthJoe Perches1-7/+14
--pattern-depth is used to control how many levels of directory traversal should be performed to find maintainers. default is 0 (all directory levels). For instance: MAINTAINERS currently has multiple M: and F: entries that match net/netfilter/ipvs/ip_vs_app.c IPVS M: Wensong Zhang <wensong@linux-vs.org> M: Simon Horman <horms@verge.net.au> M: Julian Anastasov <ja@ssi.bg> [...] F: net/netfilter/ipvs/ NETFILTER/IPTABLES/IPCHAINS [...] M: Patrick McHardy <kaber@trash.net> [...] F: net/netfilter/ NETWORKING [GENERAL] M: "David S. Miller" <davem@davemloft.net> [...] F: net/ THE REST M: Linus Torvalds <torvalds@linux-foundation.org> [...] F: */ Using this command will return all of those maintainers: (except Linus unless --git-chief-maintainers is specified) $ ./scripts/get_maintainer.pl --nogit -nol \ -f net/netfilter/ipvs/ip_vs_app.c Julian Anastasov <ja@ssi.bg> Simon Horman <horms@verge.net.au> Wensong Zhang <wensong@linux-vs.org> Patrick McHardy <kaber@trash.net> David S. Miller <davem@davemloft.net> Adding --pattern-depth=1 will match at the deepest level $ ./scripts/get_maintainer.pl --nogit -nol --pattern-depth=1 \ -f net/netfilter/ipvs/ip_vs_app.c Julian Anastasov <ja@ssi.bg> Simon Horman <horms@verge.net.au> Wensong Zhang <wensong@linux-vs.org> Adding --pattern-depth=2 will match at the deepest level and 1 higher $ ./scripts/get_maintainer.pl --nogit -nol --pattern-depth=2 \ -f net/netfilter/ipvs/ip_vs_app.c Julian Anastasov <ja@ssi.bg> Simon Horman <horms@verge.net.au> Wensong Zhang <wensong@linux-vs.org> Patrick McHardy <kaber@trash.net> and so on. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: add sections in pattern match depth orderJoe Perches1-1/+8
Before this change, matched sections were added in the order of appearance in the normally alphabetic section order of the MAINTAINERS file. For instance, finding the maintainer for drivers/scsi/wd7000.c would first find "SCSI SUBSYSTEM", then "WD7000 SCSI SUBSYSTEM", then "THE REST". before patch: $ ./scripts/get_maintainer.pl --nogit -f drivers/scsi/wd7000.c James E.J. Bottomley <James.Bottomley@HansenPartnership.com> Miroslav Zagorac <zaga@fly.cc.fer.hr> linux-scsi@vger.kernel.org linux-kernel@vger.kernel.org get_maintainer.pl now selects matched sections by longest pattern match. Longest is the number of "/"s and any specific file pattern. This changes the example output order of MAINTAINERS to whatever is selected in "WD7000 SUBSYSTEM", then "SCSI SYSTEM", then "THE REST". after patch: $ ./scripts/get_maintainer.pl --nogit -f drivers/scsi/wd7000.c Miroslav Zagorac <zaga@fly.cc.fer.hr> James E.J. Bottomley <James.Bottomley@HansenPartnership.com> linux-scsi@vger.kernel.org linux-kernel@vger.kernel.org Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22scripts/get_maintainer.pl: add --git-blameJoe Perches1-29/+109
Julia Lawall suggested that get_maintainers.pl should have the ability to include signatories of commits that are modified by a particular patch. Vegard Nossum did something similar once. http://lkml.org/lkml/2008/5/29/449 The modified script looks the commits for all lines in the patch, and includes the "-by:" signatories for those commits. It uses the same git-min-percent, git-max-maintainers, and git-min-signatures options. git-since is ignored. It can be used independently from the --git default, so ./scripts/get_maintainers.pl --nogit --git-blame <patch> or ./scripts/get_maintainers.pl --nogit --git-blame -f <file> is acceptable. If used with -f <file>, all lines/commits for the file are checked. --git-blame can be slow if used with -f <file> --git-blame does not work with -f <directory> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-21Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds1-12/+0
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: kernel/profile.c: Switch /proc/irq/prof_cpu_mask to seq_file tracing: Export trace_profile_buf symbols tracing/events: use list_for_entry_continue tracing: remove max_tracer_type_len function-graph: use ftrace_graph_funcs directly tracing: Remove markers tracing: Allocate the ftrace event profile buffer dynamically tracing: Factorize the events profile accounting
2009-09-20Merge branch 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds1-108/+0
* 'perfcounters-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (58 commits) perf_counter: Fix perf_copy_attr() pointer arithmetic perf utils: Use a define for the maximum length of a trace event perf: Add timechart help text and add timechart to "perf help" tracing, x86, cpuidle: Move the end point of a C state in the power tracer perf utils: Be consistent about minimum text size in the svghelper perf timechart: Add "perf timechart record" perf: Add the timechart tool perf: Add a SVG helper library file tracing, perf: Convert the power tracer into an event tracer perf: Add a sample_event type to the event_union perf: Allow perf utilities to have "callback" options without arguments perf: Store trace event name/id pairs in perf.data perf: Add a timestamp to fork events sched_clock: Make it NMI safe perf_counter: Fix up swcounter throttling x86, perf_counter, bts: Optimize BTS overflow handling perf sched: Add --input=file option to builtin-sched.c perf trace: Sample timestamp and cpu when using record flag perf tools: Increase MAX_EVENT_LENGTH perf tools: Fix memory leak in read_ftrace_printk() ...
2009-09-19tracing, perf: Convert the power tracer into an event tracerArjan van de Ven1-108/+0
This patch converts the existing power tracer into an event tracer, so that power events (C states and frequency changes) can be tracked via "perf". This also removes the perl script that was used to demo the tracer; its functionality is being replaced entirely with timechart. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20090912130542.6d314860@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18tracing: Remove markersChristoph Hellwig1-12/+0
Now that the last users of markers have migrated to the event tracer we can kill off the (now orphan) support code. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20090917173527.GA1699@lst.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-18kernel-doc: allow multi-line declaration purpose descriptionsJohannes Weiner1-5/+16
Allow the short description after symbol name and dash in a kernel-doc comment to span multiple lines, e.g. like this: /** * unmap_mapping_range - unmap the portion of all mmaps in the * specified address_space corresponding to the specified * page range in the underlying file. * @mapping: the address space containing mmaps to be unmapped. * ... */ The short description ends with a parameter description, an empty line or the end of the comment block. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-15sparc: Kill PROM console driver.David S. Miller1-1/+0
Many years ago when this driver was written, it had a use, but these days it's nothing but trouble and distributions should not enable it in any situation. Pretty much every console device a sparc machine could see has a bonafide real driver, making the PROM console hack unnecessary. If any new device shows up, we should write a driver instead of depending upon this crutch to save us. We've been able to take care of this even when no chip documentation exists (sunxvr500, sunxvr2500) so there are no excuses. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-09-15Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpuLinus Torvalds1-0/+8
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (46 commits) powerpc64: convert to dynamic percpu allocator sparc64: use embedding percpu first chunk allocator percpu: kill lpage first chunk allocator x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA percpu: update embedding first chunk allocator to handle sparse units percpu: use group information to allocate vmap areas sparsely vmalloc: implement pcpu_get_vm_areas() vmalloc: separate out insert_vmalloc_vm() percpu: add chunk->base_addr percpu: add pcpu_unit_offsets[] percpu: introduce pcpu_alloc_info and pcpu_group_info percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward percpu: add @align to pcpu_fc_alloc_fn_t percpu: make @dyn_size mandatory for pcpu_setup_first_chunk() percpu: drop @static_size from first chunk allocators percpu: generalize first chunk allocator selection percpu: build first chunk allocators selectively percpu: rename 4k first chunk allocator to page percpu: improve boot messages percpu: fix pcpu_reclaim() locking ... Fix trivial conflict as by Tejun Heo in kernel/sched.c
2009-09-14Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfigLinus Torvalds3-1/+413
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig: kconfig: add missing dependency of conf to localyesconfig kconfig: test if a .config already exists kconfig: make local .config default for streamline_config kconfig: test for /boot/config-uname after /proc/config.gz in localconfig kconfig: unset IKCONFIG_PROC and clean up nesting kconfig: search for a config to base the local(mod|yes)config on kconfig: keep config.gz around even if CONFIG_IKCONFIG_PROC is not set kconfig: have extract-ikconfig read ELF files kconfig: add check if end exists in extract-ikconfig kconfig: enable CONFIG_IKCONFIG from streamline_config.pl kconfig: do not warn about modules built in kconfig: streamline_config.pl do not stop with no depends kconfig: add make localyesconfig option kconfig: make localmodconfig to run streamline_config.pl kconfig: add streamline_config.pl to scripts
2009-08-21kconfig: add missing dependency of conf to localyesconfigSteven Rostedt1-1/+1
There's a dependency missing. $ make localyesconfig HOSTCC scripts/basic/fixdep HOSTCC scripts/basic/docproc HOSTCC scripts/basic/hash using config: '/boot/config-2.6.27.25-78.2.56.fc9.x86_64' /bin/sh: line 8: scripts/kconfig/conf: No such file or directory make[1]: *** [localyesconfig] Error 127 make: *** [localyesconfig] Error 2 Thus the script failed to run. But the sed command that converts the '=m' to '=y' still ran. This gives us a distro config with all modules converted to built in! The missing dependency was for conf for localyesconfig. This dependency was already set for localmodconfig. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: test if a .config already existsSteven Rostedt1-10/+20
If one were to run localmodconfig or localyesconfig without having a .config already in the file, then the end of the process would give a warning when it tries to move the old .config to .config.old. This patch adds a test to check if .config exists and avoid the moves if it does not. [ Impact: remove warning after make localmodconfig ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: make local .config default for streamline_configSteven Rostedt1-4/+4
As Andi Kleen pointed out, most people would expect that the local .config file to be based for a streamline config. This patch changes the order of searching for a config file to consider the .config in the local directory first. Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: test for /boot/config-uname after /proc/config.gz in localconfigSteven Rostedt1-0/+4
Many distros put their config in /boot/config-`uname -r`, add a check for that right after /proc/config.gz Reported-by: Alan Jenkins <sourcejedi.lkml@googlemail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: unset IKCONFIG_PROC and clean up nestingSteven Rostedt1-6/+3
Due to cut and paste error IKCONFIG was both set and cleared. It was suppose to be IKCONFIG_PROC to be cleared. Also cleaned up if nesting. Reported-by: Alan Jenkins <sourcejedi.lkml@googlemail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: search for a config to base the local(mod|yes)config onSteven Rostedt1-1/+62
Instead of using the .config in the local directory. This patch changes streamline_config.pl to search various locations for a config. Here's the list and order of search: /proc/config.gz /boot/vmlinuz-`uname -r` vmlinux # local to the directory /lib/modules/`uname -r`/kernel/kernel/configs.ko kernel/configs.ko kernel/configs.o .config Once it finds a file that contains a config (it checks if the binary objects have configs first) it then uses it to create the .config with minimum modules needed. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: have extract-ikconfig read ELF filesSteven Rostedt1-0/+10
It would be nice to use extract-ikconfig to find the congfig.gz in either vmlinux (not vmlinuz) or configs.ko. This patch changes the script to also be able to read ELF files directly. [ Impact: find config.gz in vmlinux and configs.ko ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: add check if end exists in extract-ikconfigSteven Rostedt1-0/+4
Both start and end should be tested for existence before continuing to parse the config.gz file. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: enable CONFIG_IKCONFIG from streamline_config.plSteven Rostedt1-10/+23
Ingo Molnar suggested that the streamline_config.pl should enable CONFIG_IKCONFIG to keep the current config in the kernel. Then we can use scripts/extract-ikconfig to find the current modules. This patch changes streamline_config.pl to check if CONFIG_IKCONFIG is not set, and if it is not, it enables it to be a module. [ Impact: make current config options easier to find ] Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: do not warn about modules built inSteven Rostedt1-3/+5
The streamline_config.pl finds all the configs that are needed to compile the currently loaded modules. After it creates the .config file, it tests to make sure all the configs that are needed were set. It only looks at the configs that are modules, it does not look at the builtin configs. This causes unnecessary warnings about modules not being covered. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: streamline_config.pl do not stop with no dependsSteven Rostedt1-5/+3
If a config does not have a prompt, it must be selected. streamline_config.pl keeps track of all configs that select other configs. If a config that does not have a prompt needs to be set to enable a current module, it will include all configs that select it. Note, streamline_config.pl does not enable modules that are not already enabled. It only keeps enabled those that were enabled and might be needed to compile the current modules. The code to find the selects of a config is after the code that adds the depends. But if a config needed selects but had no dependencies, it would not be set. Because the code would stop before getting to the select. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: add make localyesconfig optionSteven Rostedt1-1/+12
This adds the option localyesconfig to make. This is similar to localmodconfig, but after it removes unnecessary modules it runs sed -i s/=m/=y/ on the .config file. It then runs "make silentoldconfig" to fix any wholes that were created by the conversion of modules to core. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: make localmodconfig to run streamline_config.plSteven Rostedt1-1/+12
Running the streamline_config.pl script manually can still be confusing for some users. This patch adds the localmodconfig option. This will automatically run streamline_config.pl on the current .config and then run "make silentoldconfig" to fix any wholes that might have been created. $ make localmodconfig This will remove any module configurations in .config that are not needed to compile the modules that are loaded. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: add streamline_config.pl to scriptsSteven Rostedt1-0/+291
streamline_config.pl is a very powerful tool. For those that install a kernel to a new box using the config file from the distribution know that it can take forever to compile the kernel. Making a custom config file that will still boot your box, but bring down the compile time of the kernel can be quit painful, and to ask someone that reported a bug to do this can be a large burdon since that person may not even know how to build a kernel. This script will perform "lsmod" to find all the modules loaded on the current running system. It will read all the Makefiles to map which CONFIG enables a module. It will read the Kconfig files to find the dependencies and selects that may be needed to support a CONFIG. Finally, it reads the .config file and removes any module "=m" that is not needed to enable the currently loaded modules. The output goes to standard out. Here's a way to run the script. From the Linux directory that holds a distribution .config. $ scripts/kconfig/streamline_config.pl arch/x86/Kconfig > config-sl $ mv .config config-save $ mv config-sl .config $ make oldconfig Now you have a .config that will still build all your modules, but also take much less time to build the kernel. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-14Merge branch 'percpu-for-linus' into percpu-for-nextTejun Heo7-14/+54
Conflicts: arch/sparc/kernel/smp_64.c arch/x86/kernel/cpu/perf_counter.c arch/x86/kernel/setup_percpu.c drivers/cpufreq/cpufreq_ondemand.c mm/percpu.c Conflicts in core and arch percpu codes are mostly from commit ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all the first chunk allocators into mm/percpu.c, the changes are moved from arch code to mm/percpu.c. Signed-off-by: Tejun Heo <tj@kernel.org>
2009-08-11Merge branch 'linus' into tracing/coreIngo Molnar6-14/+51
Conflicts: kernel/trace/trace_events_filter.c We use the tracing/core version. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-09Merge branch 'linus' into tracing/urgentIngo Molnar2-9/+38
Merge reason: Merge up to almost-rc6 to pick up latest perfcounters (on which we'll queue up a dependent fix) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-07tracing: Fix recordmcount.pl to handle sections with only weak functionsSteven Rostedt1-2/+2
Roland Dreier found that a section that contained only a weak function in one of the staging drivers and this caused recordmcount.pl to spit out a warning and fail. Although it is strange that a driver would have a weak function, and this function only be used in one place, it should not be something to make recordmcount.pl fail. This patch fixes the issue in a simple manner: if only weak functions exist in a section, then that section will not be recorded. Reported-by: Roland Dreier <rdreier@cisco.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-08-05tracing: do not use functions starting with .L in recordmcount.plSteven Rostedt1-1/+4
On Wed, 5 Aug 2009, Ingo Molnar wrote: > * Dave Airlie <airlied@gmail.com> wrote: > > > Hey, > > > > So I spent 3-4 hrs today (I'm stupid yes) tracking down a .o > > breakage by blaming rawhide gcc/binutils as I was using make > > V=1and seeing only the compiler chain running, > > Hm, is this that powerpc related build bug you just reported? Well we tracked it down and it is powerpc64 specific. Seems that in drivers/hwmon/lm93.c there's a function called: LM93_IN_FROM_REG() But PPC64 has function descriptors and the real function names (the ones you see in objdump) start with a '.'. Thus this in objdump you have: Disassembly of section .text: 0000000000000000 <.LM93_IN_FROM_REG>: 0: 7c 08 02 a6 mflr r0 4: fb 81 ff e0 std r28,-32(r1) The function name used is .LM93_IN_FROM_REG. But gcc considers symbols that start with ".L" as a special symbol that is used inside the assembly stage. The nm passed into recordmcount uses the --synthetic option which shows the ".L" symbols (my runs outside of the build did not include the --synthetic option, so my older patch worked). We see the function as a local. Now to capture all the locations that use "mcount" we need to have a reference to link into the object file a list of mcount callers. We need a reference that will not disappear. We try to use a global function and if that does not work, we use a local function as a reference. But to relink the section back into the object, we need to make it global. In this case, we run objcopy using --globalize-symbol and --localize-symbol to convert the symbol into a global symbol, link the mcount list, then convert it back to a local symbol. This works great except for this case. .L* symbols can not be converted into a global symbol, and the mcount section referencing it will remain unresolved. Reported-by: Dave Airlie <airlied@gmail.com> LKML-Reference: <alpine.DEB.2.00.0908052011590.5010@gandalf.stny.rr.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-04Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds1-2/+3
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing: Fix missing function_graph events when we splice_read from trace_pipe tracing: Fix invalid function_graph entry trace: stop tracer in oops_enter() ftrace: Only update $offset when we update $ref_func ftrace: Fix the conditional that updates $ref_func tracing: only truncate ftrace files when O_TRUNC is set tracing: show proper address for trace-printk format
2009-08-04Merge branch 'tracing/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/urgentIngo Molnar3-1/+5
2009-07-29get_maintainerpl-add-git-min-percent-option-fixJoe Perches1-1/+1
Allow an option to control the minimum percentage of sign-offs required before being considered a maintainer. git-min-percent has a default value of 5 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29get_maintainer.pl: Add git-min-percent optionJoe Perches1-3/+16
Allow an option to control the minimum percentage of sign-offs required before being considered a maintainer. git-min-percent has a default value of 5 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29scripts/get_maintainer.pl: Add -f directory useJoe Perches1-4/+19
Don't require a specific file in a directory to be tested. Also Arnd Bergmann pointed out that the MAINTAINERS pattern requirement that directory patterns have a trailing slash was unnecessary and was likely to be error prone. Removed that requirement. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-29markup_oops: fix it with 32-bit userspace on a 64-bit kernelMatthew Wilcox1-2/+3
A 32-bit perl can't handle 64-bit addresses without using the BigInt package. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-23ftrace: Only update $offset when we update $ref_funcMatt Fleming1-1/+2
The value of $offset should be the offset of $ref_func from the beginning of the object file. Therefore, we should set both variables together. This fixes a bug I was hitting on sh where $offset (which is used to calcualte the addends for the __mcount_loc entries) was being set multiple times and didn't correspond to $ref_func's offset in the object file. The addends in __mcount_loc were calculated incorrectly, resulting in ftrace dynamically modifying addresses that weren't mcount call sites. Signed-off-by: Matt Fleming <matt@console-pimps.org> LKML-Reference: <1248365775-25196-2-git-send-email-matt@console-pimps.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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