support uboot change LCD parameter

hc

2023-11-07 2a9a9d4f6c07f2f23b663fe5fbeac1168a5d1029

 kernel/net/rds/ib_rdma.c
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@@ -34,6 +34,7 @@
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 #include <linux/slab.h>
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 #include <linux/rculist.h>
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 #include <linux/llist.h>
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+#include <linux/delay.h>
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 #include "rds_single_path.h"
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 #include "ib_mr.h"
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@@ -222,7 +223,7 @@
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 	for_each_online_cpu(cpu) {
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 		flag = &per_cpu(clean_list_grace, cpu);
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 		while (test_bit(CLEAN_LIST_BUSY_BIT, flag))
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-			cpu_relax();
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+			cpu_chill();
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 	}
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 }
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