change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/fs/btrfs/extent_io.c
..
..
@@ -4034,11 +4034,12 @@
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 			free_extent_buffer(eb);
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 			/*
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-			 * the filesystem may choose to bump up nr_to_write.
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+			 * The filesystem may choose to bump up nr_to_write.
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 			 * We have to make sure to honor the new nr_to_write
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-			 * at any time
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+			 * at any time.
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 			 */
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-			nr_to_write_done = wbc->nr_to_write <= 0;
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+			nr_to_write_done = (wbc->sync_mode == WB_SYNC_NONE &&
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+					    wbc->nr_to_write <= 0);
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 		}
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 		pagevec_release(&pvec);
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 		cond_resched();
..
..
@@ -5633,8 +5634,14 @@
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 	char *dst = (char *)dstv;
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 	unsigned long i = start >> PAGE_SHIFT;
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-	if (check_eb_range(eb, start, len))
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+	if (check_eb_range(eb, start, len)) {
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+		/*
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+		 * Invalid range hit, reset the memory, so callers won't get
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+		 * some random garbage for their uninitialzed memory.
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+		 */
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+		memset(dstv, 0, len);
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 		return;
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+	}
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 	offset = offset_in_page(start);
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