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2017-06-15tools/testing/nvdimm: fix nfit_test buffer overflowYasunori Goto1-1/+1
The root cause of panic is the num_pm of nfit_test1 is wrong. Though 1 is specified for num_pm at nfit_test_init(), it must be 2, because nfit_test1->spa_set[] array has 2 elements. Since the array is smaller than expected, the driver breaks other area. (it is often the link list of devres). As a result, panic occurs like the following example. CPU: 4 PID: 2233 Comm: lt-libndctl Tainted: G O 4.12.0-rc1+ #12 RIP: 0010:__list_del_entry_valid+0x6c/0xa0 Call Trace: release_nodes+0x76/0x260 devres_release_all+0x3c/0x50 device_release_driver_internal+0x159/0x200 device_release_driver+0x12/0x20 bus_remove_device+0xfd/0x170 device_del+0x1e8/0x330 platform_device_del+0x28/0x90 platform_device_unregister+0x12/0x30 nfit_test_exit+0x2a/0x93b [nfit_test] Cc: <stable@vger.kernel.org> Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-07ACPI: Switch to use generic guid_t in acpi_evaluate_dsm()Andy Shevchenko3-5/+7
acpi_evaluate_dsm() and friends take a pointer to a raw buffer of 16 bytes. Instead we convert them to use guid_t type. At the same time we convert current users. acpi_str_to_uuid() becomes useless after the conversion and it's safe to get rid of it. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Borislav Petkov <bp@suse.de> Acked-by: Dan Williams <dan.j.williams@intel.com> Cc: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Cc: Ben Skeggs <bskeggs@redhat.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Joerg Roedel <jroedel@suse.de> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Yisen Zhuang <yisen.zhuang@huawei.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-05-26selftests/ftrace: Add a testcase for many kprobe eventsMasami Hiramatsu1-0/+21
Add a testcase to test kprobes via ftrace interface with many concurrent kprobe events. This tries to add many kprobe events (up to 256) on kernel functions. To avoid making ftrace-based kprobes (kprobes on fentry), it skips first N bytes (on x86 N=5, on ppc or arm N=4) of function entry. After that, it enables all those events, disable it, and remove it. Since the unoptimization buffer reclaiming will be delayed, after removing events, it will wait enough time. Link: http://lkml.kernel.org/r/149577388470.11702.11832460851769204511.stgit@devbox Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-05-25bpf: add various verifier test casesDaniel Borkmann1-4/+235
This patch adds various verifier test cases: 1) A test case for the pruning issue when tracking alignment is used. 2) Various PTR_TO_MAP_VALUE_OR_NULL tests to make sure pointer arithmetic turns such register into UNKNOWN_VALUE type. 3) Test cases for the special treatment of LD_ABS/LD_IND to make sure verifier doesn't break calling convention here. Latter is needed, since f.e. arm64 JIT uses r1 - r5 for storing temporary data, so they really must be marked as NOT_INIT. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-19selftests/powerpc: Fix TM resched DSCR test with some compilersMichael Ellerman1-1/+1
The tm-resched-dscr test has started failing sometimes, depending on what compiler it's built with, eg: test: tm_resched_dscr Check DSCR TM context switch: tm-resched-dscr: tm-resched-dscr.c:76: test_body: Assertion `rv' failed. !! child died by signal 6 When it fails we see that the compiler doesn't initialise rv to 1 before entering the inline asm block. Although that's counter intuitive, it is allowed because we tell the compiler that the inline asm will write to rv (using "=r"), meaning the original value is irrelevant. Marking it as a read/write parameter would presumably work, but it seems simpler to fix it by setting the initial value of rv in the inline asm. Fixes: 96d016108640 ("powerpc: Correct DSCR during TM context switch") Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Michael Neuling <mikey@neuling.org>
2017-05-17selftests/ftrace: Add test to remove instance with active event triggersNaveen N. Rao1-2/+6
Add a test to ensure we clean up properly when removing an instance with active event triggers. Link: http://lkml.kernel.org/r/c479465b2009397708d6c52c8561e1523c22cd31.1494956770.git.naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-05-17selftests/ftrace: Fix bashismsNaveen N. Rao3-4/+4
Fix a few bashisms in ftrace selftests. Link: http://lkml.kernel.org/r/5fbf4613eef0766918fa04e3ff537cae271223ee.1494956770.git.naveen.n.rao@linux.vnet.ibm.com Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-05-17selftests/bpf: fix broken build due to types.hYonghong Song2-0/+17
Commit 0a5539f66133 ("bpf: Provide a linux/types.h override for bpf selftests.") caused a build failure for tools/testing/selftest/bpf because of some missing types: $ make -C tools/testing/selftests/bpf/ ... In file included from /home/yhs/work/net-next/tools/testing/selftests/bpf/test_pkt_access.c:8: ../../../include/uapi/linux/bpf.h:170:3: error: unknown type name '__aligned_u64' __aligned_u64 key; ... /usr/include/linux/swab.h:160:8: error: unknown type name '__always_inline' static __always_inline __u16 __swab16p(const __u16 *p) ... The type __aligned_u64 is defined in linux:include/uapi/linux/types.h. The fix is to copy missing type definition into tools/testing/selftests/bpf/include/uapi/linux/types.h. Adding additional include "string.h" resolves __always_inline issue. Fixes: 0a5539f66133 ("bpf: Provide a linux/types.h override for bpf selftests.") Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-16selftests/powerpc: Test TM and VMX register stateMichael Neuling3-1/+122
Test that the VMX checkpointed register state is maintained when a VMX unavailable exception is taken during a transaction. Thanks to Breno Leitao <brenohl@br.ibm.com> and Gustavo Bueno Romero <gromero@br.ibm.com> for the original test this is based heavily on. Signed-off-by: Michael Neuling <mikey@neuling.org> Reviewed-by: Cyril Bur <cyrilbur@gmail.com> [mpe: Add to .gitignore, always build it 64-bit to fix build errors] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-05-11bpf: Handle multiple variable additions into packet pointers in verifier.David S. Miller1-0/+37
We must accumulate into reg->aux_off rather than use a plain assignment. Add a test for this situation to test_align. Reported-by: Alexei Starovoitov <ast@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-11bpf: Remove commented out debugging hack in test_align.David S. Miller1-1/+0
Reported-by: Alexander Alemayhu <alexander@alemayhu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-11bpf: Provide a linux/types.h override for bpf selftests.David S. Miller2-1/+8
We do not want to use the architecture's type.h header when building BPF programs which are always 64-bit. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-11bpf: Add verifier test case for alignment.David S. Miller2-1/+419
Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net>
2017-05-08selftests/vm: add a test for virtual address range mappingAnshuman Khandual3-0/+134
This verifies virtual address mapping below and above the 128TB range and makes sure that address returned are within the expected range depending upon the hint passed from the user space. Link: http://lkml.kernel.org/r/20170418095252.20533-1-khandual@linux.vnet.ibm.com Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Michal Suchanek <msuchanek@suse.de> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-03userfaultfd: selftest: combine all cases into a single executableMike Rapoport3-108/+116
Currently, selftest for userfaultfd is compiled three times: for anonymous, shared and hugetlb memory. Let's combine all the cases into a single executable which will have a command line option for selection of the test type. Link: http://lkml.kernel.org/r/1490869741-5913-1-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-05-03selftests: x86: add missing executables to .gitignoreShuah Khan1-0/+13
Executables that are common for both x86_32 and x86_64 are missing from .gitignore. Add them. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-05-03selftests/bpf: get rid of -D__x86_64__Alexei Starovoitov2-2/+3
-D__x86_64__ workaround was used to make /usr/include/features.h to follow expected path through the system include headers. This is not portable. Instead define dummy stubs.h which is used by 'clang -target bpf' Fixes: 6882804c916b ("selftests/bpf: add a test for overlapping packet range checks") Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-03selftests/bpf: add a test case to check verifier pointer arithmeticYonghong Song3-1/+275
With clang/llvm 4.0+, the test case is able to generate the following pattern: .... 440: (b7) r1 = 15 441: (05) goto pc+73 515: (79) r6 = *(u64 *)(r10 -152) 516: (bf) r7 = r10 517: (07) r7 += -112 518: (bf) r2 = r7 519: (0f) r2 += r1 520: (71) r1 = *(u8 *)(r8 +0) 521: (73) *(u8 *)(r2 +45) = r1 .... commit 332270fdc8b6 ("bpf: enhance verifier to understand stack pointer arithmetic") improved verifier to handle such a pattern. This patch adds a C test case to actually generate such a pattern. A dummy tracepoint interface is used to load the program into the kernel. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-02selftests: watchdog: accept multiple params on command lineTimur Tabi1-27/+34
Watchdog drivers are not required to retain programming information, such as timeouts, after the watchdog device is closed. Therefore, the watchdog test should be able to perform multiple actions after opening the watchdog device. For example, to set the timeout to 10s and ping every 5s: watchdog-test -t 10 -p 5 -e Also, display the periodic decimal point only if the keep-alive call succeeds. Signed-off-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-05-02selftests: bpf: Use bpf_endian.h in test_xdp.cDavid S. Miller1-9/+8
This fixes the testcase on big-endian. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-01bpf: Include bpf_endian.h in test_progs.c too.David S. Miller1-0/+1
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-01bpf: Move endianness BPF helpers out of bpf_util.hDavid S. Miller4-21/+25
We do not want to include things like stdio.h and friends into eBPF program builds. bpf_util.h is for host compiled programs, so eBPF C-code helpers don't really belong there. Add a new bpf_endian.h as a quick fix for this for now. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-01bpf: enhance verifier to understand stack pointer arithmeticYonghong Song1-6/+12
llvm 4.0 and above generates the code like below: .... 440: (b7) r1 = 15 441: (05) goto pc+73 515: (79) r6 = *(u64 *)(r10 -152) 516: (bf) r7 = r10 517: (07) r7 += -112 518: (bf) r2 = r7 519: (0f) r2 += r1 520: (71) r1 = *(u8 *)(r8 +0) 521: (73) *(u8 *)(r2 +45) = r1 .... and the verifier complains "R2 invalid mem access 'inv'" for insn #521. This is because verifier marks register r2 as unknown value after #519 where r2 is a stack pointer and r1 holds a constant value. Teach verifier to recognize "stack_ptr + imm" and "stack_ptr + reg with const val" as valid stack_ptr with new offset. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-28bpf: provide a generic macro for percpu values for selftestsDaniel Borkmann2-17/+27
To overcome bugs as described and fixed in 89087c456fb5 ("bpf: Fix values type used in test_maps"), provide a generic BPF_DECLARE_PERCPU() and bpf_percpu() accessor macro for all percpu map values used in tests. Declaring variables works as follows (also works for structs): BPF_DECLARE_PERCPU(uint32_t, my_value); They can then be accessed normally as uint32_t type through: bpf_percpu(my_value, <cpu_nr>) For example: bpf_percpu(my_value, 0)++; Implicitly, we make sure that the passed type is allocated and aligned by gcc at least on a 8-byte boundary, so that it works together with the map lookup/update syscall for percpu maps. We use it as a usage example in test_maps, so that others are free to adapt this into their code when necessary. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-28bpf: fix _htons occurences in test_progsDaniel Borkmann4-15/+31
Dave reported that on sparc test_progs generates buggy swapped eth->h_proto protocol comparisons: 10: (15) if r3 == 0xdd86 goto pc+9 R0=imm2,min_value=2,max_value=2 R1=pkt(id=0,off=0,r=14) R2=pkt_end R3=inv R4=pkt(id=0,off=14,r=14) R5=inv56 R10=fp This is due to the unconditional ... #define htons __builtin_bswap16 #define ntohs __builtin_bswap16 ... in test_progs that causes this. Make use of asm/byteorder.h and use __constant_htons() where possible and only perform the bswap16 when on little endian in non-constant case. Fixes: 6882804c916b ("selftests/bpf: add a test for overlapping packet range checks") Fixes: 37821613626e ("selftests/bpf: add l4 load balancer test based on sched_cls") Reported-by: David S. Miller <davem@davemloft.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-28bpf: add various test cases to verifier selftestsDaniel Borkmann1-0/+137
Add several test cases around ldimm64, fp arithmetic and direct packet access. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-27selftests: create cpufreq kconfig fragmentsNaresh Kamboju1-0/+15
For the better test coverage of cpufreq driver code these extra configurations are needed. Enable cpufreq governors and stats. Signed-off-by: Naresh Kamboju <naresh.kamboju@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-27selftests: x86: override clean in lib.mk to fix warningsShuah Khan1-2/+1
Add override with EXTRA_CLEAN for lib.mk clean to fix the following warnings from clean target run. Makefile:44: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-27selftests: sync: override clean in lib.mk to fix warningsShuah Khan1-2/+1
Add override with EXTRA_CLEAN for lib.mk clean to fix the following warnings from clean target run. Makefile:24: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-27selftests: splice: override clean in lib.mk to fix warningsShuah Khan1-2/+1
Add override with EXTRA_CLEAN for lib.mk clean to fix the following warnings from clean target run. Makefile:8: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-26selftests: ftrace: Allow some event trigger tests to run in an instanceSteven Rostedt (VMware)5-0/+5
Some of the event triggers can run fine in an instance. Have them tested in one as well. The ones that still need work are the snapshot, stacktrace and traceon/off triggers, as they don't currently pass a handle to the trace_array they are attached to. But that can be for a future project. Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-04-26selftests: ftrace: Have some basic tests run in a tracing instance tooSteven Rostedt (VMware)2-0/+2
Some of the basic ftrace selftests should also be run in an instance. These test a quick case of running all tracers in the available_tracers file within the instance. The other is testing the clock used for the instance. Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-04-26selftests: ftrace: Have event tests also run in an tracing instanceSteven Rostedt (VMware)3-0/+3
The ftrace selftests of events: event-enable, event-pid, and subsystem-enable can all be run inside an instance. Change their tests to do both a toplevel run an an instance run. Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-04-26selftests: ftrace: Make func_event_triggers and func_traceonoff_triggers tests do instancesSteven Rostedt (VMware)2-0/+2
Both the func_event_triggers and func_traceonoff_triggers tests can be performed in both the toplevel instance as well as for individual instances. Have their tests run in both cases. Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-04-26selftests: ftrace: Allow some tests to be run in a tracing instanceSteven Rostedt (VMware)1-1/+17
An tracing instance has several of the same capabilities as the top level instance, but may be implemented slightly different. Instead of just writing tests that duplicat the same test cases of the top level instance, allow a test to be written for both the top level as well as for an instance. If a test case can be run in both the top level as well as in an tracing instance directory, then it should add a tag "# flags: instance" in the header of the test file. Then after all tests have run, any test that has an instance flag set, will run again within a tracing instance. Link: http://lkml.kernel.org/r/20170421233850.1d0e9e05@gandalf.local.home Cc: Shuah Khan <shuah@kernel.org> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-04-25bpf: map_get_next_key to return first key on NULLTeng Qin1-4/+25
When iterating through a map, we need to find a key that does not exist in the map so map_get_next_key will give us the first key of the map. This often requires a lot of guessing in production systems. This patch makes map_get_next_key return the first key when the key pointer in the parameter is NULL. Signed-off-by: Teng Qin <qinteng@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-25selftests/net: Fix broken test case in psock_fanoutMike Maloney1-1/+1
The error return falue form sock_fanout_open is -1, not zero. One test case was checking for 0 instead of -1. Tested: Built and tested in clean client. Signed-off-by: Mike Maloney <maloney@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-25selftests: gpio: fix clean target to remove all generated files and dirsShuah Khan1-1/+7
gpio test creates executables, object files, and include directory under selftests directory. Enhance clean target to remove all files it generates. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-25selftests: add gpio generated files to .gitignoreShuah Khan1-0/+4
gpio test generates files in selftests directory. Add them to .gitignore. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-25selftests: powerpc: override clean in lib.mk to fix warningsShuah Khan1-1/+2
Add override for lib.mk clean to fix the following warnings from clean target run. Makefile:63: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-25selftests: gpio: override clean in lib.mk to fix warningsShuah Khan1-1/+2
Add override for lib.mk clean to fix the following warnings from clean target run. Makefile:11: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-25selftests: futex: override clean in lib.mk to fix warningsShuah Khan1-1/+2
Add override for lib.mk clean to fix the following warnings from clean target run. Makefile:36: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-25selftests: lib.mk: define CLEAN macro to allow Makefiles to override cleanShuah Khan1-1/+5
Define CLEAN macro to allow Makefiles to override common clean target in lib.mk. This will help fix the following failures: warning: overriding recipe for target 'clean' ../lib.mk:55: warning: ignoring old recipe for target 'clean' Fixes: 88baa78d1f31 ("selftests: remove duplicated all and clean target") Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-25selftests: splice: fix clean target to not remove default_file_splice_read.shShuah Khan1-1/+1
splice clean target removes the shell script default_file_splice_read.sh that runs the splice test. Fix it to not remove this file. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-24selftests/net: add tests for PACKET_FANOUT_FLAG_UNIQUEIDMike Maloney1-11/+84
Create two groups with PACKET_FANOUT_FLAG_UNIQUEID, add a socket to one. Ensure that the groups can only be joined if all options are consistent with the original except for this flag. Signed-off-by: Mike Maloney <maloney@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-24selftests/net: cleanup unused parameter in psock_fanoutMike Maloney1-9/+9
sock_fanout_open no longer sets the size of packet_socket ring, so stop passing the parameter. Signed-off-by: Mike Maloney <maloney@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21bpf: Fix values type used in test_mapsDavid Miller1-2/+2
Maps of per-cpu type have their value element size adjusted to 8 if it is specified smaller during various map operations. This makes test_maps as a 32-bit binary fail, in fact the kernel writes past the end of the value's array on the user's stack. To be quite honest, I think the kernel should reject creation of a per-cpu map that doesn't have a value size of at least 8 if that's what the kernel is going to silently adjust to later. If the user passed something smaller, it is a sizeof() calcualtion based upon the type they will actually use (just like in this testcase code) in later calls to the map operations. Fixes: df570f577231 ("samples/bpf: unit test for BPF_MAP_TYPE_PERCPU_ARRAY") Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org>
2017-04-21bpf: add napi_id read access to __sk_buffDaniel Borkmann1-0/+3
Add napi_id access to __sk_buff for socket filter program types, tc program types and other bpf_convert_ctx_access() users. Having access to skb->napi_id is useful for per RX queue listener siloing, f.e. in combination with SO_ATTACH_REUSEPORT_EBPF and when busy polling is used, meaning SO_REUSEPORT enabled listeners can then select the corresponding socket at SYN time already [1]. The skb is marked via skb_mark_napi_id() early in the receive path (e.g., napi_gro_receive()). Currently, sockets can only use SO_INCOMING_NAPI_ID from 6d4339028b35 ("net: Introduce SO_INCOMING_NAPI_ID") as a socket option to look up the NAPI ID associated with the queue for steering, which requires a prior sk_mark_napi_id() after the socket was looked up. Semantics for the __sk_buff napi_id access are similar, meaning if skb->napi_id is < MIN_NAPI_ID (e.g. outgoing packets using sender_cpu), then an invalid napi_id of 0 is returned to the program, otherwise a valid non-zero napi_id. [1] http://netdevconf.org/2.1/slides/apr6/dumazet-BUSY-POLLING-Netdev-2.1.pdf Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21selftests: gpio: add config fragment for gpio-mockupFathi Boudra1-0/+2
The gpio test requires to insert the gpio mockup module (CONFIG_GPIO_MOCKUP). The gpio mockup driver depends on gpiolib (CONFIG_GPIOLIB). CONFIG_GPIO_SYSFS is selected automatically by the gpio mockup driver. Tested on x86_64 and arm64 with defconfig and kselftest-merge. Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-04-21selftests: breakpoints: allow to cross-compile for aarch64/arm64Fathi Boudra1-1/+1
To build breakpoint_test_arm64, ARCH value is only tested for "aarch64". It covers only the native build because it's computed from uname -m output. For cross-compilation, ARCH is set to arm64 and prevent to cross-compile the test. Fix the test to allow both native and cross-compilation of the test. Note: glibc is missing several of the TRAP_* constants in the userspace definitions. Specifically TRAP_BRANCH and TRAP_HWBKPT. See https://sourceware.org/bugzilla/show_bug.cgi?id=21286 Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org> Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>