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/event/toplevel-enable.tc
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@@ -1,6 +1,7 @@
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 #!/bin/sh
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 # SPDX-License-Identifier: GPL-2.0
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 # description: event tracing - enable/disable with top level files
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+# requires: available_events set_event events/enable
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 do_reset() {
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     echo > set_event
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@@ -8,22 +9,9 @@
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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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-
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-yield() {
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-    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
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-}
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-
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-if [ ! -f available_events -o ! -f set_event -o ! -d events ]; 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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-reset_tracer
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-do_reset
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 echo '*:*' > set_event
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..
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@@ -59,7 +47,5 @@
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 if [ $count -ne 0 ]; then
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     fail "any of events should not be recorded"
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 fi
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-
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-do_reset
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 exit 0