修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
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@@ -1,39 +1,15 @@
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 #!/bin/sh
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 # SPDX-License-Identifier: GPL-2.0
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 # description: event trigger - test histogram trigger
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+# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist
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 # flags: instance
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-do_reset() {
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-    reset_trigger
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-    echo > set_event
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-    clear_trace
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-}
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-
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 fail() { #msg
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-    do_reset
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     echo $1
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     exit_fail
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 }
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-if [ ! -f set_event -o ! -d events/sched ]; then
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-    echo "event tracing is not supported"
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-    exit_unsupported
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-fi
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-
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-if [ ! -f events/sched/sched_process_fork/trigger ]; then
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-    echo "event trigger is not supported"
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-    exit_unsupported
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-fi
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-
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-if [ ! -f events/sched/sched_process_fork/hist ]; then
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-    echo "hist trigger is not supported"
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-    exit_unsupported
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-fi
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-
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-reset_tracer
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-do_reset
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-
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-echo "Test histogram basic tigger"
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+echo "Test histogram basic trigger"
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 echo 'hist:keys=parent_pid:vals=child_pid' > events/sched/sched_process_fork/trigger
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 for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
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@@ -78,7 +54,5 @@
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 check_inc `grep -o "child_pid:[[:space:]]*[[:digit:]]*" \
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     events/sched/sched_process_fork/hist | cut -d: -f2 ` ||
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     fail "sort param on sched_process_fork did not work"
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-
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-do_reset
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 exit 0