kernel/linux.git/tools/testing/selftests/powerpc/utils.c, branch v4.9.236Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v4.9.2362020-08-21T09:02:03+00:00selftests/powerpc: Fix online CPU selection2020-08-21T09:02:03+00:00Sandipan Dassandipan@linux.ibm.com2020-07-30T05:08:46+00:00urn:sha1:4b8b58edfe51ee4299bdded30d444906f73f571a
[ Upstream commit dfa03fff86027e58c8dba5c03ae68150d4e513ad ]
The size of the CPU affinity mask must be large enough for
systems with a very large number of CPUs. Otherwise, tests
which try to determine the first online CPU by calling
sched_getaffinity() will fail. This makes sure that the size
of the allocated affinity mask is dependent on the number of
CPUs as reported by get_nprocs_conf().
Fixes: 3752e453f6ba ("selftests/powerpc: Add tests of PMU EBBs")
Reported-by: Shirisha Ganta <shiganta@in.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Reviewed-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a408c4b8e9a23bb39b539417a21eb0ff47bb5127.1596084858.git.sandipan@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
selftests/powerpc: Move pick_online_cpu() up into utils.c2015-12-16T23:46:41+00:00Michael Ellermanmpe@ellerman.id.au2015-12-16T07:59:31+00:00urn:sha1:d1301afd71bd38b1610b391e50debf766faa84be
We want to use this in another test, so make it available at the top of
the powerpc selftests tree.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: Move get_auxv_entry() into utils.c2015-12-14T09:41:47+00:00Michael Ellermanmpe@ellerman.id.au2015-11-24T02:05:38+00:00urn:sha1:fcb45ec074725baeb3aaa1b1854b9f44c3eebacf
This doesn't really belong in harness.c, it's a helper function. So move
it into utils.c.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>