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/ftrace/fgraph-filter-stack.tc
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@@ -1,28 +1,15 @@
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 #!/bin/sh
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 # SPDX-License-Identifier: GPL-2.0
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 # description: ftrace - function graph filters with stack tracer
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+# requires: stack_trace set_ftrace_filter function_graph:tracer
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 # Make sure that function graph filtering works, and is not
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 # affected by other tracers enabled (like stack tracer)
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-if ! grep -q function_graph available_tracers; then
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-    echo "no function graph tracer configured"
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-    exit_unsupported
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-fi
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-
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-if [ ! -f set_ftrace_filter ]; then
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-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
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-    exit_unsupported
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-fi
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-
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 do_reset() {
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-    reset_tracer
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     if [ -e /proc/sys/kernel/stack_tracer_enabled ]; then
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 	    echo 0 > /proc/sys/kernel/stack_tracer_enabled
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     fi
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-    enable_tracing
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-    clear_trace
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-    echo > set_ftrace_filter
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 }
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 fail() { # msg
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@@ -43,12 +30,6 @@
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 fi
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 echo function_graph > current_tracer
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-
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-if [ ! -f stack_trace ]; then
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-    echo "Stack tracer not configured"
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-    do_reset
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-    exit_unsupported;
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-fi
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 echo "Now testing with stack tracer"
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