linux

mirror of https://github.com/armbian/linux.git synced 2026-01-06 10:13:00 -08:00

Files

Will Deacon d2b3216795 oprofile: perf: use NR_CPUS instead or nr_cpumask_bits for static array

commit e734568b67 upstream.

The OProfile perf backend uses a static array to keep track of the
perf events on the system. When compiling with CONFIG_CPUMASK_OFFSTACK=y
&& SMP, nr_cpumask_bits is not a compile-time constant and the build
will fail with:

oprofile_perf.c:28: error: variably modified 'perf_events' at file scope

This patch uses NR_CPUs instead of nr_cpumask_bits for the array
initialisation. If this causes space problems in the future, we can
always move to dynamic allocation for the events array.

Cc: Matt Fleming <matt@console-pimps.org>
Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2012-07-16 08:47:48 -07:00

buffer_sync.c

oprofile: Fix locking dependency in sync_start()

2011-05-31 16:33:34 +02:00

buffer_sync.h

cpumask: modifiy oprofile initialization

2009-01-22 14:37:06 +01:00

cpu_buffer.c

oprofile: Introduce new oprofile sample add function (oprofile_add_ext_hw_sample)

2011-02-15 11:07:07 +01:00

cpu_buffer.h

oprofile: Remove deprecated use of flush_scheduled_work()