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| author | Tom Zanussi <tom.zanussi@linux.intel.com> | 2017-09-22 14:58:17 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-25 14:23:44 +0100 |
| commit | 6af9b18a2e485dae8f837e0194bfc6937dff69e1 (patch) | |
| tree | bbc6601cee69d7ed8f107022dac91e0bdda886c2 /sound/sparc | |
| parent | fbb2d72a54c6402192df22bf0c35e41f750ba188 (diff) | |
tracing: Exclude 'generic fields' from histograms
[ Upstream commit a15f7fc20389a8827d5859907568b201234d4b79 ]
There are a small number of 'generic fields' (comm/COMM/cpu/CPU) that
are found by trace_find_event_field() but are only meant for
filtering. Specifically, they unlike normal fields, they have a size
of 0 and thus wreak havoc when used as a histogram key.
Exclude these (return -EINVAL) when used as histogram keys.
Link: http://lkml.kernel.org/r/956154cbc3e8a4f0633d619b886c97f0f0edf7b4.1506105045.git.tom.zanussi@linux.intel.com
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'sound/sparc')
0 files changed, 0 insertions, 0 deletions