disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/lib/mpi/mpicoder.c
..
..
@@ -504,7 +504,8 @@
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 	while (sg_miter_next(&miter)) {
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 		buff = miter.addr;
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-		len = miter.length;
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+		len = min_t(unsigned, miter.length, nbytes);
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+		nbytes -= len;
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 		for (x = 0; x < len; x++) {
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 			a <<= 8;