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| author | Mark Rutland <Mark.Rutland@arm.com> | 2013-01-18 14:42:59 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2013-01-18 14:46:09 +0100 |
| commit | 8f3b90b585d3e879b03ce2a202da04d59dd5b699 (patch) | |
| tree | d592d08d124d1c441d5c6ee66a0adc353f9cb50b /net/ipv4/xfrm4_mode_tunnel.c | |
| parent | ARM: perf: handle armpmu_register failing (diff) | |
| download | linux-8f3b90b585d3e879b03ce2a202da04d59dd5b699.tar.xz linux-8f3b90b585d3e879b03ce2a202da04d59dd5b699.zip | |
ARM: perf: remove unnecessary checks for idx < 0
We currently check for hwx->idx < 0 in armpmu_read and armpmu_del
unnecessarily. The only case where hwc->idx < 0 is when armpmu_add
fails, in which case the event's state is set to
PERF_EVENT_STATE_INACTIVE.
The perf core will not attempt to read from an event in
PERF_EVENT_STATE_INACTIVE, and so the check in armpmu_read is
unnecessary. Similarly, if perf core cannot add an event it will not
attempt to delete it, so the WARN_ON in armpmu_del is unnecessary.
This patch removes these two redundant checks.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'net/ipv4/xfrm4_mode_tunnel.c')
0 files changed, 0 insertions, 0 deletions