add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/input/mouse/cyapa_gen6.c
..
..
@@ -680,7 +680,7 @@
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 		}
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 		cyapa->state = CYAPA_STATE_GEN6_APP;
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-		/* fall through */
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+		fallthrough;
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 	case CYAPA_STATE_GEN6_APP:
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 		/*