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ye xingchen authored
Use timersub() function to simplify the code. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220816105106.82666-1-ye.xingchen@zte.com.cn
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