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2016-07-29Merge branch 'next' of ↵Linus Torvalds1-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "Highlights: - TPM core and driver updates/fixes - IPv6 security labeling (CALIPSO) - Lots of Apparmor fixes - Seccomp: remove 2-phase API, close hole where ptrace can change syscall #" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (156 commits) apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handling tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family) tpm: Factor out common startup code tpm: use devm_add_action_or_reset tpm2_i2c_nuvoton: add irq validity check tpm: read burstcount from TPM_STS in one 32-bit transaction tpm: fix byte-order for the value read by tpm2_get_tpm_pt tpm_tis_core: convert max timeouts from msec to jiffies apparmor: fix arg_size computation for when setprocattr is null terminated apparmor: fix oops, validate buffer size in apparmor_setprocattr() apparmor: do not expose kernel stack apparmor: fix module parameters can be changed after policy is locked apparmor: fix oops in profile_unpack() when policy_db is not present apparmor: don't check for vmalloc_addr if kvzalloc() failed apparmor: add missing id bounds check on dfa verification apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task apparmor: use list_next_entry instead of list_entry_next apparmor: fix refcount race when finding a child profile apparmor: fix ref count leak when profile sha1 hash is read apparmor: check that xindex is in trans_table bounds ...
2016-07-07samples/seccomp: Add standalone config optionOlof Johansson1-0/+7
Add a separate Kconfig option for SAMPLES_SECCOMP. Main reason for this is that, just like other samples, it's forced to be a module. Without this, since the sample is a target only controlled by CONFIG_SECCOMP_FILTER, the samples will be built before include files are put in place properly. For example, from an arm64 allmodconfig built with "make -sk -j 32" (without specific target), the following happens: samples/seccomp/bpf-fancy.c:13:27: fatal error: linux/seccomp.h: No such file or directory samples/seccomp/bpf-helper.h:20:50: fatal error: linux/seccomp.h: No such file or directory samples/seccomp/dropper.c:20:27: fatal error: linux/seccomp.h: No such file or directory samples/seccomp/bpf-direct.c:21:27: fatal error: linux/seccomp.h: No such file or directory So, just stick to the same format as other samples. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Kees Cook <keescook@chromium.org>
2016-06-20tracing: Add trace_printk sample codeSteven Rostedt (Red Hat)1-0/+7
Add sample code to test trace_printk(). The trace_printk() functions should never be used in production code. This makes testing it a bit more difficult. Having a sample module that can test use cases of trace_printk() can help out. Currently it just tests trace_printk() where it will be converted into: trace_bputs() trace_puts() trace_bprintk() as well as staying as the normal _trace_printk(). It also tests its use in interrupt context as that will test the auxilery buffers. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2016-04-28samples: connector: from Documentation to samples directoryArnd Bergmann1-0/+9
A small bug with the new autoksyms support showed that there are two kernel modules in the Documentation directory that qualify as samples, while all other samples are in the samples/ directory. This patch was originally meant as a workaround for that bug, but it has now been solved in a different way. However, I still think it makes sense as a cleanup to consolidate all sample code in one place. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2015-10-13configfs: remove old APIChristoph Hellwig1-0/+6
Remove the old show_attribute and store_attribute methods and update the documentation. Also replace the two C samples with a single new one in the proper samples directory where people expect to find it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-02-04livepatch: rename config to CONFIG_LIVEPATCHJosh Poimboeuf1-2/+2
Rename CONFIG_LIVE_PATCHING to CONFIG_LIVEPATCH to make the naming of the config and the code more consistent. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-12-22livepatch: samples: add sample live patching moduleSeth Jennings1-0/+7
Add a sample live patching module. Signed-off-by: Seth Jennings <sjenning@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Petr Mladek <pmladek@suse.cz> Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-01-25tracing: Remove tracepoint sample codeSteven Rostedt1-6/+0
The tracepoint sample code was used to teach developers how to create their own tracepoints. But now the trace_events have been added as a higher level that is used directly by developers today. Only the trace_event code should use the tracepoint interface directly and no new tracepoints should be added. Besides, the example had a race condition with the use of the ->d_name.name dentry field, as pointed out by Al Viro. Best just to remove the code so it wont be used by other developers. Link: http://lkml.kernel.org/r/20130123225523.GY4939@ZenIV.linux.org.uk Cc: Al Viro <viro@ZenIV.linux.org.uk> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-02-08samples/rpmsg: add an rpmsg driver sampleOhad Ben-Cohen1-0/+8
Add an rpmsg driver sample, which demonstrates how to communicate with an AMP-configured remote processor over the rpmsg bus. Note how once probed, the driver can immediately start sending messages using the rpmsg_send() API, without having to worry about creating endpoints or allocating rpmsg addresses: all that work is done by the rpmsg bus, and the required information is already embedded in the rpmsg channel that the driver is probed with. In this sample, the driver simply sends a "Hello World!" message to the remote processor repeatedly. Designed with Brian Swetland <swetland@google.com>. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Cc: Brian Swetland <swetland@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Tony Lindgren <tony@atomide.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg KH <greg@kroah.com> Cc: Stephen Boyd <sboyd@codeaurora.org>
2011-10-31samples: drop unused Kconfig symbolPaul Bolle1-6/+0
Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-05-23Merge branches 'doc', 'multitouch', 'upstream' and 'upstream-fixes' into ↵Jiri Kosina1-1/+1
for-linus
2011-04-21HID: hid-example: fix some build issuesRandy Dunlap1-2/+2
samples/hid-example.o needs some Kconfig and Makefile additions in order to build. It should use <linux/*.h> headers from the build tree, so use HEADERS_CHECK to require that those header files be present. Change the kconfig symbol from tristate to bool since userspace cannot be built as loadable modules. However, I don't understand why the userspace header files are not present as reported in Andrew's build log, since it builds OK on x86_64 without any of these changes. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Alan Ott <alan@signal11.us> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-03-31Fix common misspellingsLucas De Marchi1-1/+1
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-22HID: Documentation for hidrawAlan Ott1-0/+6
Documenation for the hidraw driver, with sample program. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-29kdb: Add kdb kernel module sampleJason Wessel1-0/+7
Add an example of how to add a dynamic kdb shell command via a kernel module. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
2010-08-11kfifo: add example files to the kernel sample directoryStefani Seibold1-0/+10
Add four examples to the kernel sample directory. It shows how to handle: - a byte stream fifo - a integer type fifo - a dynamic record sized fifo - the fifo DMA functions [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Stefani Seibold <stefani@seibold.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-07Merge branch 'for-next' into for-linusJiri Kosina1-3/+0
Conflicts: kernel/irq/chip.c
2009-11-09Kconfig: Remove useless and sometimes wrong commentsMichael Roth1-3/+0
Additionally, some excessive newlines removed. Signed-off-by: Michael Roth <mroth@nessie.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-10-18Merge commit 'perf/core' into perf/hw-breakpointFrederic Weisbecker1-6/+0
Conflicts: kernel/Makefile kernel/trace/Makefile kernel/trace/trace.h samples/Makefile Merge reason: We need to be uptodate with the perf events development branch because we plan to rewrite the breakpoints API on top of perf events.
2009-09-18tracing: Remove markersChristoph Hellwig1-6/+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>
2009-06-17Merge branch 'linus' into tracing/hw-breakpointsIngo Molnar1-1/+2
Conflicts: arch/x86/Kconfig arch/x86/kernel/traps.c arch/x86/power/cpu.c arch/x86/power/cpu_32.c kernel/Makefile Semantic conflict: arch/x86/kernel/hw_breakpoint.c Merge reason: Resolve the conflicts, move from put_cpu_no_sched() to put_cpu() in arch/x86/kernel/hw_breakpoint.c. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-15kobject: samples: make SAMPLE_KOBJECT module-onlyMichal Marek1-1/+2
With SAMPLE_KOBJECT=y, it isn't even linked into the kernel image. Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-06-02hw-breakpoints: sample HW breakpoint over kernel data addressK.Prasad1-0/+6
This patch introduces a sample kernel module to demonstrate the use of Hardware Breakpoint feature. It places a breakpoint over the kernel variable 'pid_max' to monitor all write operations and emits a function-backtrace when done. Signed-off-by: K.Prasad <prasad@linux.vnet.ibm.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2009-05-06tracing/events: make SAMPLE_TRACE_EVENTS default to nLi Zefan1-3/+2
Normally a config should be default to n. This patch also makes the sample module-only, like SAMPLE_MARKERS and SAMPLE_TRACEPOINTS. [ Impact: don't build trace event sample by default ] Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4A00F6C0.8090803@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-14tracing/events: add trace-events-sampleSteven Rostedt1-0/+7
This patch adds a sample to the samples directory on how to create and use TRACE_EVENT trace points. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2008-10-14tracing: tracepoints, samplesMathieu Desnoyers1-0/+6
Tracepoint example code under samples/. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: 'Peter Zijlstra' <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-04Kprobes: move kprobe examples to samples/Ananth N Mavinakayanahalli1-0/+11
Move kprobes examples from Documentation/kprobes.txt to under samples/. Patch originally by Randy Dunlap. o Updated the patch to apply on 2.6.25-rc3 o Modified examples code to build on multiple architectures. Currently, the kprobe and jprobe examples code works for x86 and powerpc o Cleaned up unneeded #includes o Cleaned up Kconfig per Sam Ravnborg's suggestions to fix build break on archs that don't have kretprobes o Implemented suggestions by Mathieu Desnoyers on CONFIG_KRETPROBES o Included Andrew Morton's cleanup based on x86-git o Modified kretprobe_example to act as a arch-agnostic module to determine routine execution times: Use 'modprobe kretprobe_example func=<func_name>' to determine execution time of func_name in nanoseconds. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-24kobject: add sample code for how to use kobjects in a simple manner.Greg Kroah-Hartman1-0/+10
This is a simple kobject module, showing how to use kobj_attributes in basic and more complex ways. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-19Linux Kernel Markers - SamplesMathieu Desnoyers1-0/+5
Module example showing how to use the Linux Kernel Markers. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19markers: Add samples subdirMathieu Desnoyers1-0/+11
Begin infrastructure for kernel code samples in the samples/ directory. Add its Kconfig and Kbuild files. Source its Kconfig file in all arch/ Kconfigs. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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