disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/lib/dim/dim.c
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@@ -54,7 +54,7 @@
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 }
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 EXPORT_SYMBOL(dim_park_tired);
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-void dim_calc_stats(struct dim_sample *start, struct dim_sample *end,
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+bool dim_calc_stats(struct dim_sample *start, struct dim_sample *end,
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 		    struct dim_stats *curr_stats)
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 {
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 	/* u32 holds up to 71 minutes, should be enough */
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@@ -66,7 +66,7 @@
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 			     start->comp_ctr);
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 	if (!delta_us)
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-		return;
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+		return false;
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 	curr_stats->ppms = DIV_ROUND_UP(npkts * USEC_PER_MSEC, delta_us);
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 	curr_stats->bpms = DIV_ROUND_UP(nbytes * USEC_PER_MSEC, delta_us);
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@@ -79,5 +79,6 @@
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 	else
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 		curr_stats->cpe_ratio = 0;
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+	return true;
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 }
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 EXPORT_SYMBOL(dim_calc_stats);