diff options
author | German Gomez <german.gomez@arm.com> | 2022-01-18 14:40:54 +0000 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-22 17:15:47 -0300 |
commit | 3606c0e1a1050d397ad759a62607e419fd8b0ccb (patch) | |
tree | db11069619a9b1383eeaf107948da138e6db49d8 /drivers/phy/ti/phy-omap-usb2.c | |
parent | 24ead7c254b42c4ea252e57bf9928154dc7744e0 (diff) | |
download | linux-stable-3606c0e1a1050d397ad759a62607e419fd8b0ccb.tar.gz linux-stable-3606c0e1a1050d397ad759a62607e419fd8b0ccb.tar.bz2 linux-stable-3606c0e1a1050d397ad759a62607e419fd8b0ccb.zip |
perf evsel: Override attr->sample_period for non-libpfm4 events
A previous patch preventing "attr->sample_period" values from being
overridden in pfm events changed a related behaviour in arm-spe.
Before said patch:
perf record -c 10000 -e arm_spe_0// -- sleep 1
Would yield an SPE event with period=10000. After the patch, the period
in "-c 10000" was being ignored because the arm-spe code initializes
sample_period to a non-zero value.
This patch restores the previous behaviour for non-libpfm4 events.
Fixes: ae5dcc8abe31 (“perf record: Prevent override of attr->sample_period for libpfm4 events”)
Reported-by: Chase Conklin <chase.conklin@arm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20220118144054.2541-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/phy/ti/phy-omap-usb2.c')
0 files changed, 0 insertions, 0 deletions