modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/md/bcache/util.c
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@@ -33,27 +33,27 @@
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 	case 'y':						\
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 	case 'z':						\
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 		u++;						\
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-		/* fall through */				\
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+		fallthrough;					\
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 	case 'e':						\
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 		u++;						\
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-		/* fall through */				\
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+		fallthrough;					\
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 	case 'p':						\
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 		u++;						\
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-		/* fall through */				\
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+		fallthrough;					\
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 	case 't':						\
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 		u++;						\
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-		/* fall through */				\
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+		fallthrough;					\
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 	case 'g':						\
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 		u++;						\
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-		/* fall through */				\
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+		fallthrough;					\
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 	case 'm':						\
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 		u++;						\
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-		/* fall through */				\
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+		fallthrough;					\
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 	case 'k':						\
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 		u++;						\
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 		if (e++ == cp)					\
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 			return -EINVAL;				\
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-		/* fall through */				\
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+		fallthrough;					\
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 	case '\n':						\
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 	case '\0':						\
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 		if (*e == '\n')					\
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@@ -270,7 +270,11 @@
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 	int i;
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 	struct bio_vec *bv;
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-	bio_for_each_segment_all(bv, bio, i) {
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+	/*
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+	 * This is called on freshly new bio, so it is safe to access the
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+	 * bvec table directly.
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+	 */
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+	for (i = 0, bv = bio->bi_io_vec; i < bio->bi_vcnt; bv++, i++) {
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 		bv->bv_page = alloc_page(gfp_mask);
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 		if (!bv->bv_page) {
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 			while (--bv >= bio->bi_io_vec)