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Both these rules incorrectly use $< (first prerequisite) rather than
$^ (all prerequisites), meaning they don't work if we're using more than
one .S file as input. Switch them to using $^.
They also don't include $(CPPFLAGS) and other variables used in the
default rules, which breaks targets that require those. Fix that by
using the builtin $(COMPILE.S) and $(LINK.S) rules.
Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Tested by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Currently we can't build some tests, for example:
$ make -C tools/testing/selftests/ TARGETS=vm
...
gcc -Wall -I ../../../../usr/include -lrt -lpthread ../../../../usr/include/linux/kernel.h userfaultfd.c -o tools/testing/selftests/vm/userfaultfd
/tmp/ccmOkQSM.o: In function `stress':
userfaultfd.c:(.text+0xc60): undefined reference to `pthread_create'
userfaultfd.c:(.text+0xca5): undefined reference to `pthread_create'
userfaultfd.c:(.text+0xcee): undefined reference to `pthread_create'
userfaultfd.c:(.text+0xd30): undefined reference to `pthread_create'
userfaultfd.c:(.text+0xd77): undefined reference to `pthread_join'
userfaultfd.c:(.text+0xe7d): undefined reference to `pthread_join'
userfaultfd.c:(.text+0xe9f): undefined reference to `pthread_cancel'
userfaultfd.c:(.text+0xec6): undefined reference to `pthread_join'
userfaultfd.c:(.text+0xf14): undefined reference to `pthread_join'
/tmp/ccmOkQSM.o: In function `userfaultfd_stress':
userfaultfd.c:(.text+0x13e2): undefined reference to `pthread_attr_setstacksize'
collect2: error: ld returned 1 exit status
This is because the rule for linking .c files to binaries is incorrect.
The first bug is that it uses $< (first prerequisite) instead of $^ (all
preqrequisites), fix it by using ^$.
Secondly the ordering of the prerequisites vs $(LDLIBS) is wrong,
meaning on toolchains that use --as-needed we fail to link (as above).
Fix that by placing $(LDLIBS) *after* ^$.
Finally switch to using the default rule $(LINK.c), so that we get
$(CPPFLAGS) etc. included.
Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Tested by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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In commit 88baa78d1f31 ("selftests: remove duplicated all and clean
target"), the "all" target was removed from individual Makefiles and
added to lib.mk.
However the "all" target was added to lib.mk *after* the existing
"runtests" target. This means "runtests" becomes the first (default)
target for most of our Makefiles.
This has the effect of causing a plain "make" to build *and run* the
tests. Which is at best rude, but depending on which tests are run could
oops someone's build machine.
$ make -C tools/testing/selftests/
...
make[1]: Entering directory 'tools/testing/selftests/bpf'
gcc -Wall -O2 -I../../../../usr/include test_verifier.c -o tools/testing/selftests/bpf/test_verifier
gcc -Wall -O2 -I../../../../usr/include test_maps.c -o tools/testing/selftests/bpf/test_maps
gcc -Wall -O2 -I../../../../usr/include test_lru_map.c -o tools/testing/selftests/bpf/test_lru_map
#0 add+sub+mul FAIL
Failed to load prog 'Function not implemented'!
#1 unreachable FAIL
Unexpected error message!
#2 unreachable2 FAIL
...
Fix it by moving the "all" target to the start of lib.mk, making it the
default target.
Fixes: 88baa78d1f31 ("selftests: remove duplicated all and clean target")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Tested by: Bamvor Jian Zhang <bamvor.zhangjian@linaro.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Add config option "SHIFT=<value>" to Makefile for building test suite
with any value of RADIX_TREE_MAP_SHIFT between 3 and 7 inclusive.
Signed-off-by: Rehas Sachdeva <aquannie@gmail.com>
[mawilcox@microsoft.com: .gitignore, quieten grep, remove on clean]
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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If the -l flag is set, run the tests for 100 seconds each instead of
the normal 10 seconds.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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The last of the memory leaks in the test suite was a couple of places in
the split/join testing where I forgot to free the element being removed
from the tree.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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None of the malloc'ed data structures were ever being freed. Found with
-fsanitize=address.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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If item_insert() or item_insert_order() failed to insert an item, they
would leak the item they had just created. This was causing runaway
memory consumption while running the iteration_check testcase, which
proves that Ross has too much memory in his workstation ;-)
Make sure to free the item on error. Found with -fsanitize=address.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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I was looking for a memory scribble and instead found a pile of memory
leaks. Ensure no more occur in future.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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Chaining through the ->private_data member means we have to zero
->private_data after removing preallocated nodes from the list.
We're about to initialise ->parent anyway, so we can avoid zeroing it.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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Make the output of radix tree test suite less verbose by default and add
-v and -vv command line options for increasing level of verbosity.
Signed-off-by: Rehas Sachdeva <aquannie@gmail.com>
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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To help track down where memory leaks may be, add the ability to turn
on/off printing allocations, frees and delayed frees.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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To allow developers to run a subset of tests, build separate multiorder
and idr-test binaries which will run just the tests in those files.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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We can use the root entry as a bitmap and save allocating a 128 byte
bitmap for an IDA that contains only a few entries (30 on a 32-bit
machine, 62 on a 64-bit machine). This costs about 300 bytes of kernel
text on x86-64, so as long as 3 IDAs fall into this category, this
is a net win for memory consumption.
Thanks to Rasmus Villemoes for his work documenting the problem and
collecting statistics on IDAs.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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When we preload the IDA, we allocate an IDA bitmap. Instead of storing
that preallocated bitmap in the IDA, we store it in a percpu variable.
Generally there are more IDAs in the system than CPUs, so this cuts down
on the number of preallocated bitmaps that are unused, and about half
of the IDA users did not call ida_destroy() so they were leaking IDA
bitmaps.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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The IDR is very similar to the radix tree. It has some functionality that
the radix tree did not have (alloc next free, cyclic allocation, a
callback-based for_each, destroy tree), which is readily implementable on
top of the radix tree. A few small changes were needed in order to use a
tag to represent nodes with free space below them. More extensive
changes were needed to support storing NULL as a valid entry in an IDR.
Plain radix trees still interpret NULL as a not-present entry.
The IDA is reimplemented as a client of the newly enhanced radix tree. As
in the current implementation, it uses a bitmap at the last level of the
tree.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Tested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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radix-tree.c doesn't use these CONFIG options any more.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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Instead of specifying how to build find_bit.o from lib/find_bit.o,
use vpath to tell make where to find find_bit.c.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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Many of the definitions in the radix-tree kernel.h are redundant with
others in tools/include, or are no longer used, such as panic().
Move the definition of __init to init.h and in_interrupt() to preempt.h
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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The tools/include export.h contains everything we need.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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Move the pieces we still need to tools/include and update a few implicit
includes.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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The radix tree hasn't used a mempool since the beginning of git history.
Remove the userspace mempool implementation.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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Changing tools/include/asm/bug.h showed a missing dependency in the
Makefile.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Rehas Sachdeva <aquannie@gmail.com>
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Some pieces of code are independent of hardware but are very tricky to
exercise through the normal userspace ABI or via debugfs hooks. Being
able to create mock unit tests and execute them through CI is vital.
Start by adding a central point where we can execute unit tests and
a parameter to enable them. This is disabled by default as the
expectation is that these tests will occasionally explode.
To facilitate integration with igt, any parameter beginning with
i915.igt__ is interpreted as a subtest executable independently via
igt/drv_selftest.
Two classes of selftests are recognised: mock unit tests and integration
tests. Mock unit tests are run as soon as the module is loaded, before
the device is probed. At that point there is no driver instantiated and
all hw interactions must be "mocked". This is very useful for writing
universal tests to exercise code not typically run on a broad range of
architectures. Alternatively, you can hook into the live selftests and
run when the device has been instantiated - hw interactions are real.
v2: Add a macro for compiling conditional code for mock objects inside
real objects.
v3: Differentiate between mock unit tests and late integration test.
v4: List the tests in natural order, use igt to sort after modparam.
v5: s/late/live/
v6: s/unsigned long/unsigned int/
v7: Use igt_ prefixes for long helpers.
v8: Deobfuscate macros overriding functions, stop using -I$(src)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-1-chris@chris-wilson.co.uk
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Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add require dependency headers.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace bpf_map_create() with bpf_create_map() calls.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace bpf_map_next_key() with bpf_map_get_next_key() calls.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace bpf_map_delete() with bpf_map_delete_elem() calls.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace bpf_map_lookup() with bpf_map_lookup_elem() calls.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace bpf_map_update() with bpf_map_update_elem() calls.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Replace bpf_prog_load() with bpf_load_program() calls.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If selftests are run as root, then execute the unprivileged checks as
well. This switch from 243 to 368 tests.
The test numbers are suffixed with "/u" when executed as unprivileged or
with "/p" when executed as privileged.
The geteuid() check is replaced with a capability check.
Handling capabilities requires the libcap dependency.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use the tools include directory instead of the installed one to allow
builds from other kernels.
Signed-off-by: Mickaël Salaün <mic@digikod.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The siginfo contains a bunch of information about the fault.
For protection keys, it tells us which protection key's
permissions were violated.
The wrong offset in here leads to reading garbage and thus
failures in the tests.
We should probably eventually move this over to using the
kernel's headers defining the siginfo instead of a hard-coded
offset. But, for now, just do the simplest fix.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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'orig_pkru' might have been uninitialized here. Fix it.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Create a variable called run_command_status that saves the status of the
executed commands and can be used by other functions later to test for
status.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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When performing a reboot of the test box, try to ssh to it. If it can't
connect for 5 seconds, then powercycle the box. This is useful because the
reboot is done via ssh, and if you can't ssh to the box because it is hung,
the reboot fails to reboot.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Add a timeout to performing an ssh command. This will let testing if a
machine is alive or not, or if something else may be amiss. A timeout can be
passed to ssh, where ssh will fail if it does not complete within the given
timeout.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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The child_exit errno needs to be shifted by 8 bits to compare against the
return values for the bisect variables.
Fixes: c5dacb88f0a64 ("ktest: Allow overriding bisect test results")
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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The POST_TEST config is to be executed after a test has fully compeleted,
whether the test passed or failed. It currently is executed at the moment
that the test has been decided if it failed or not. As the test does other
clean ups, it isn't truly finished. Move the POST_TEST execution to after
all the test cleanups have been done.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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The patch fixes the case when adding a zero value to the packet
pointer. The zero value could come from src_reg equals type
BPF_K or CONST_IMM. The patch fixes both, otherwise the verifer
reports the following error:
[...]
R0=imm0,min_value=0,max_value=0
R1=pkt(id=0,off=0,r=4)
R2=pkt_end R3=fp-12
R4=imm4,min_value=4,max_value=4
R5=pkt(id=0,off=4,r=4)
269: (bf) r2 = r0 // r2 becomes imm0
270: (77) r2 >>= 3
271: (bf) r4 = r1 // r4 becomes pkt ptr
272: (0f) r4 += r2 // r4 += 0
addition of negative constant to packet pointer is not allowed
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Mihai Budiu <mbudiu@vmware.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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These two tests are based on the work done for f23cc643f9ba. The first test is
just a basic one to make sure we don't allow AND'ing negative values, even if it
would result in a valid index for the array. The second is a cleaned up version
of the original testcase provided by Jann Horn that resulted in the commit.
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We want the hv and other fixes in here as well to handle merge and
testing issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ingo pointed out that the MPX tests were no longer in the selftests
Makefile. It appears that I shot myself in the foot on this one
and accidentally removed them when I added the pkeys tests, probably
from bungling a merge conflict.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 5f23f6d082a9 ("x86/pkeys: Add self-tests")
Link: http://lkml.kernel.org/r/20170201225629.C3070852@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU changes from Paul E. McKenney:
- Dynticks updates, consolidating open-coded counter accesses into a well-defined API
- SRCU updates: Simplify algorithm, add formal verification
- Documentation updates
- Miscellaneous fixes
- Torture-test updates
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Two trivial overlapping changes conflicts in MPLS and mlx5.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The definition of WARN_ON being used by the radix tree test suite was
deficient in two ways: it did not provide a return value, and it stopped
execution instead of continuing. This version of WARN_ON tells you
which file & line the assertion was triggered in.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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By adding __set_bit and __clear_bit to the tools include directory, we
can share the bitops code. This reveals an include loop between kernel.h,
log2.h, bitmap.h and bitops.h. Break it the same way as the kernel does;
by moving the kernel.h include from bitops.h to bitmap.h.
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
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Pull networking fixes from David Miller:
1) GTP fixes from Andreas Schultz (missing genl module alias, clear IP
DF on transmit).
2) Netfilter needs to reflect the fwmark when sending resets, from Pau
Espin Pedrol.
3) nftable dump OOPS fix from Liping Zhang.
4) Fix erroneous setting of VIRTIO_NET_HDR_F_DATA_VALID on transmit,
from Rolf Neugebauer.
5) Fix build error of ipt_CLUSTERIP when procfs is disabled, from Arnd
Bergmann.
6) Fix regression in handling of NETIF_F_SG in harmonize_features(),
from Eric Dumazet.
7) Fix RTNL deadlock wrt. lwtunnel module loading, from David Ahern.
8) tcp_fastopen_create_child() needs to setup tp->max_window, from
Alexey Kodanev.
9) Missing kmemdup() failure check in ipv6 segment routing code, from
Eric Dumazet.
10) Don't execute unix_bind() under the bindlock, otherwise we deadlock
with splice. From WANG Cong.
11) ip6_tnl_parse_tlv_enc_lim() potentially reallocates the skb buffer,
therefore callers must reload cached header pointers into that skb.
Fix from Eric Dumazet.
12) Fix various bugs in legacy IRQ fallback handling in alx driver, from
Tobias Regnery.
13) Do not allow lwtunnel drivers to be unloaded while they are
referenced by active instances, from Robert Shearman.
14) Fix truncated PHY LED trigger names, from Geert Uytterhoeven.
15) Fix a few regressions from virtio_net XDP support, from John
Fastabend and Jakub Kicinski.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (102 commits)
ISDN: eicon: silence misleading array-bounds warning
net: phy: micrel: add support for KSZ8795
gtp: fix cross netns recv on gtp socket
gtp: clear DF bit on GTP packet tx
gtp: add genl family modules alias
tcp: don't annotate mark on control socket from tcp_v6_send_response()
ravb: unmap descriptors when freeing rings
virtio_net: reject XDP programs using header adjustment
virtio_net: use dev_kfree_skb for small buffer XDP receive
r8152: check rx after napi is enabled
r8152: re-schedule napi for tx
r8152: avoid start_xmit to schedule napi when napi is disabled
r8152: avoid start_xmit to call napi_schedule during autosuspend
net: dsa: Bring back device detaching in dsa_slave_suspend()
net: phy: leds: Fix truncated LED trigger names
net: phy: leds: Break dependency of phy.h on phy_led_triggers.h
net: phy: leds: Clear phy_num_led_triggers on failure to avoid crash
net-next: ethernet: mediatek: change the compatible string
Documentation: devicetree: change the mediatek ethernet compatible string
bnxt_en: Fix RTNL lock usage on bnxt_get_port_module_status().
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